improved usability of native docker image

the `RBCS_CONFIGURATION_DIR` was ignored because of a bug in JWO

.gitea/workflows/build.yaml

@@ -39,9 +39,9 @@ jobs:
           push: true
           pull: true
           tags: |
-            gitea.woggioni.net/woggioni/rbcs:latest
-            gitea.woggioni.net/woggioni/rbcs:${{ steps.retrieve-version.outputs.VERSION }}
-          target: release
+            gitea.woggioni.net/woggioni/rbcs:vanilla
+            gitea.woggioni.net/woggioni/rbcs:vanilla-${{ steps.retrieve-version.outputs.VERSION }}
+          target: release-vanilla
           cache-from: type=registry,ref=gitea.woggioni.net/woggioni/rbcs:buildx
       -
         name: Build rbcs memcache Docker image
@@ -57,6 +57,20 @@ jobs:
           target: release-memcache
           cache-from: type=registry,ref=gitea.woggioni.net/woggioni/rbcs:buildx
           cache-to: type=registry,mode=max,compression=zstd,image-manifest=true,oci-mediatypes=true,ref=gitea.woggioni.net/woggioni/rbcs:buildx
+      -
+        name: Build rbcs memcache Docker image
+        uses: docker/build-push-action@v5.3.0
+        with:
+          context: "docker/build/docker"
+          platforms: linux/amd64
+          push: true
+          pull: true
+          tags: |
+            gitea.woggioni.net/woggioni/rbcs:latest
+            gitea.woggioni.net/woggioni/rbcs:${{ steps.retrieve-version.outputs.VERSION }}
+            gitea.woggioni.net/woggioni/rbcs:native
+            gitea.woggioni.net/woggioni/rbcs:native-${{ steps.retrieve-version.outputs.VERSION }}
+          target: release-native
       - name: Publish artifacts
         env:
           PUBLISHER_TOKEN: ${{ secrets.PUBLISHER_TOKEN }}

README.md

@@ -66,11 +66,18 @@ buildCache {
         url = 'https://rbcs.example.com/'
         push = true
         allowInsecureProtocol = false
+        // The credentials block is only required if you enable 
+        // HTTP basic authentication on RBCS
+        credentials {
+            username = 'build-cache-user'
+            password = 'some-complicated-password'
+        }
     }
 }
 ```
 
-alternatively you can add this to `${GRADLE_HOME}/init.gradle`
+alternatively you can add this to `${GRADLE_HOME}/init.gradle` to configure the remote cache
+at the system level
 
 ```groovy
 gradle.settingsEvaluated { settings ->
@@ -79,14 +86,51 @@ gradle.settingsEvaluated { settings ->
             url = 'https://rbcs.example.com/'
             push = true
             allowInsecureProtocol = false
+            // The credentials block is only required if you enable 
+            // HTTP basic authentication on RBCS
+            credentials {
+                username = 'build-cache-user'
+                password = 'some-complicated-password'
+            }
         }
     }
 }
 ```
 
+add `org.gradle.caching=true` to your `<project>/gradle.properties` or run gradle with `--build-cache`.
+
+Read [Gradle documentation](https://docs.gradle.org/current/userguide/build_cache.html) for more detailed information.
+
 ### Using RBCS with Maven
 
+1. Create an `extensions.xml` in `<project>/.mvn/extensions.xml` with the following content
+  ```xml
+  <extensions xmlns="http://maven.apache.org/EXTENSIONS/1.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+            xsi:schemaLocation="http://maven.apache.org/EXTENSIONS/1.1.0 https://maven.apache.org/xsd/core-extensions-1.0.0.xsd">
+      <extension>
+          <groupId>org.apache.maven.extensions</groupId>
+          <artifactId>maven-build-cache-extension</artifactId>
+          <version>1.2.0</version>
+      </extension>
+  </extensions>
+  ```
+2. Copy [maven-build-cache-config.xml](https://maven.apache.org/extensions/maven-build-cache-extension/maven-build-cache-config.xml) into `<project>/.mvn/` folder
+3. Edit the `cache/configuration/remote` element
+  ```xml
+    <remote enabled="true" id="rbcs">
+        <url>https://rbcs.example.com/</url>
+    </remote>
+  ```
+4. Run maven with
+  ```bash
+    mvn -Dmaven.build.cache.enabled=true -Dmaven.build.cache.debugOutput=true -Dmaven.build.cache.remote.save.enabled=true package
+  ```
+
+Alternatively you can set those properties in your `<project>/pom.xml`
+
+
 Read [here](https://maven.apache.org/extensions/maven-build-cache-extension/remote-cache.html)
+for more informations
 
 ## FAQ
 ### Why should I use a build cache?

build.gradle

@@ -14,9 +14,7 @@ allprojects { subproject ->
         if(project.currentTag.isPresent()) {
             version = project.currentTag.map { it[0] }.get()
         } else {
-            version = project.gitRevision.map { gitRevision ->
-                "${getProperty('rbcs.version')}.${gitRevision[0..10]}"
-            }.get()
+            version = "${getProperty('rbcs.version')}-SNAPSHOT"
         }
 
     repositories {
@@ -24,7 +22,6 @@ allprojects { subproject ->
             url = getProperty('gitea.maven.url')
             content {
                 includeModule 'net.woggioni', 'jwo'
-                includeModule 'net.woggioni', 'xmemcached'
                 includeGroup 'com.lys'
             }
         }
@@ -41,7 +38,7 @@ allprojects { subproject ->
             withSourcesJar()
             modularity.inferModulePath = true
             toolchain {
-                languageVersion = JavaLanguageVersion.of(21)
+                languageVersion = JavaLanguageVersion.of(23)
                 vendor = JvmVendorSpec.ORACLE
             }
         }

doc/server_configuration.md

@@ -0,0 +1,178 @@
+
+### RBCS server configuration file elements and attributes
+
+#### Root Element: `server`
+The root element that contains all server configuration.
+
+**Attributes:**
+- `path` (optional): URI path prefix for cache requests. Example: if set to "cache", requests would be made to "http://www.example.com/cache/KEY"
+
+#### Child Elements
+
+#### `<bind>`
+Configures server socket settings.
+
+**Attributes:**
+- `host` (required): Server bind address
+- `port` (required): Server port number
+- `incoming-connections-backlog-size` (optional, default: 1024): Maximum queue length for incoming connection indications
+
+#### `<connection>`
+Configures connection handling parameters.
+
+**Attributes:**
+- `idle-timeout` (optional, default: PT30S): Connection timeout when no activity
+- `read-idle-timeout` (optional, default: PT60S): Connection timeout when no reads
+- `write-idle-timeout` (optional, default: PT60S): Connection timeout when no writes
+- `max-request-size` (optional, default: 0x4000000): Maximum allowed request body size
+
+#### `<event-executor>`
+Configures event execution settings.
+
+**Attributes:**
+- `use-virtual-threads` (optional, default: true): Whether to use virtual threads for the server handler
+
+#### `<cache>`
+Defines cache storage implementation. Two types are available:
+
+##### InMemory Cache
+
+A simple storage backend that uses an hash map to store data in memory
+
+**Attributes:**
+- `max-age` (default: P1D): Cache entry lifetime
+- `max-size` (default: 0x1000000): Maximum cache size in bytes
+- `digest` (default: MD5): Key hashing algorithm
+- `enable-compression` (default: true): Enable deflate compression
+- `compression-level` (default: -1): Compression level (-1 to 9)
+- `chunk-size` (default: 0x10000): Maximum socket write size
+
+##### FileSystem Cache
+
+A storage backend that stores data in a folder on the disk
+
+**Attributes:**
+- `path`: Storage directory path
+- `max-age` (default: P1D): Cache entry lifetime
+- `digest` (default: MD5): Key hashing algorithm
+- `enable-compression` (default: true): Enable deflate compression
+- `compression-level` (default: -1): Compression level
+- `chunk-size` (default: 0x10000): Maximum in-memory cache value size
+
+#### `<authorization>`
+Configures user and group-based access control.
+
+##### `<users>`
+List of registered users.
+- Contains `<user>` elements:
+
+  **Attributes:**
+    - `name` (required): Username
+    - `password` (optional): For basic authentication
+- Can contain an `anonymous` element to allow for unauthenticated access
+
+##### `<groups>`
+List of user groups.
+- Contains `<group>` elements:
+
+    **Attributes:**
+    - `name`: Group name
+    - Can contain:
+        - `users`: List of user references
+        - `roles`: List of roles (READER/WRITER)
+        - `user-quota`: Per-user quota
+        - `group-quota`: Group-wide quota
+
+#### `<authentication>`
+Configures authentication mechanism. Options:
+- `<basic>`: HTTP basic authentication
+- `<client-certificate>`: TLS certificate authentication, it uses attributes of the subject's X.500 name
+  to extract the username and group of the client.
+
+  Example:
+  ```xml
+    <client-certificate>
+        <user-extractor attribute-name="CN" pattern="(.*)"/>
+        <group-extractor attribute-name="O" pattern="(.*)"/>
+    </client-certificate>
+  ```
+- `<none>`: No authentication
+
+#### `<tls>`
+Configures TLS encryption.
+
+**Child Elements:**
+- `<keystore>`: Server certificate configuration
+
+    **Attributes:**
+    - `file` (required): Keystore file path
+    - `password`: Keystore password
+    - `key-alias` (required): Private key alias
+    - `key-password`: Private key password
+- `<truststore>`: Client certificate verification
+
+    **Attributes:**  
+    - `file` (required): Truststore file path
+    - `password`: Truststore password
+    - `check-certificate-status`: Enable CRL/OCSP checking
+    - `require-client-certificate` (default: false): Require client certificates
+
+
+----------------------------
+
+# Complete configuration example
+
+```xml
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<rbcs:server xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
+             xmlns:rbcs="urn:net.woggioni.rbcs.server"
+             xs:schemaLocation="urn:net.woggioni.rbcs.server jpms://net.woggioni.rbcs.server/net/woggioni/rbcs/server/schema/rbcs.xsd"
+>
+    <bind host="0.0.0.0" port="8080" incoming-connections-backlog-size="1024"/>
+    <connection
+            max-request-size="67108864"
+            idle-timeout="PT10S"
+            read-idle-timeout="PT20S"
+            write-idle-timeout="PT20S"
+            read-timeout="PT5S"
+            write-timeout="PT5S"/>
+    <event-executor use-virtual-threads="true"/>
+    <cache xs:type="rbcs:inMemoryCacheType" max-age="P7D" enable-compression="false" max-size="0x10000000" />
+    <!--cache xs:type="rbcs:fileSystemCacheType" max-age="P7D" enable-compression="false" path="${sys:java.io.tmpdir}/rbcs"/-->
+    <authorization>
+        <users>
+            <user name="user1" password="II+qeNLft2pZ/JVNo9F7jpjM/BqEcfsJW27NZ6dPVs8tAwHbxrJppKYsbL7J/SMl">
+                <quota calls="100" period="PT1S"/>
+            </user>
+            <user name="user2" password="v6T9+q6/VNpvLknji3ixPiyz2YZCQMXj2FN7hvzbfc2Ig+IzAHO0iiBCH9oWuBDq"/>
+            <anonymous>
+                <quota calls="10" period="PT60S" initial-available-calls="10" max-available-calls="10"/>
+            </anonymous>
+        </users>
+        <groups>
+            <group name="readers">
+                <users>
+                    <anonymous/>
+                </users>
+                <roles>
+                    <reader/>
+                </roles>
+            </group>
+            <group name="writers">
+                <users>
+                    <user ref="user1"/>
+                    <user ref="user2"/>
+                </users>
+                <roles>
+                    <reader/>
+                    <writer/>
+                </roles>
+            </group>
+        </groups>
+    </authorization>
+    <authentication>
+      <basic/>
+    </authentication>
+</rbcs:server>
+
+```

docker/Dockerfile

@@ -3,7 +3,7 @@ RUN adduser -D luser
 USER luser
 WORKDIR /home/luser
 
-FROM base-release AS release
+FROM base-release AS release-vanilla
 ADD rbcs-cli-envelope-*.jar rbcs.jar
 ENTRYPOINT ["java", "-XX:+UseSerialGC", "-XX:GCTimeRatio=24", "-jar", "/home/luser/rbcs.jar", "server"]
 
@@ -15,3 +15,9 @@ RUN --mount=type=bind,source=.,target=/build/distributions tar -xf /build/distri
 WORKDIR /home/luser
 ADD logback.xml .
 ENTRYPOINT ["java", "-Dlogback.configurationFile=logback.xml", "-XX:+UseSerialGC", "-XX:GCTimeRatio=24", "-jar", "/home/luser/rbcs.jar", "server"]
+
+FROM scratch AS release-native
+ADD rbcs-cli.upx /rbcs/rbcs-cli
+ENV RBCS_CONFIGURATION_DIR="/rbcs"
+WORKDIR /rbcs
+ENTRYPOINT ["./rbcs/rbcs-cli"]

docker/README.md

@@ -0,0 +1,24 @@
+# RBCS Docker images
+There are 3 image flavours:
+- vanilla
+- memcache
+- native
+
+The `vanilla` image only contains the envelope 
+jar file with no plugins and is based on `eclipse-temurin:21-jre-alpine`
+
+The `memcache` image is similar to the `vanilla` image, except that it also contains
+the `rbcs-server-memcache` plugin in the `plugins` folder, use this image if you don't want to use the `native`
+image and want to use memcache as the cache backend
+
+The `native` image contains a native, statically-linked executable created with GraalVM
+that has no userspace dependencies. It also embeds the memcache plugin inside the executable.
+Use this image for maximum efficiency and minimal memory footprint. 
+
+## Which image shoud I use?
+The `native` image uses Java's SerialGC, so it's ideal for constrained environment like containers or small servers,
+if you have a lot of resources and want to squeeze out the maximum throughput you should consider the
+`vanilla` or `memcache` image, then choose and fine tune the garbage collector.
+
+Also the `native` image is only available for the `x86_64` architecture at the moment, 
+while `vanilla` and `memcache` also ship a `aarch64` variant.

gradle.properties

@@ -4,7 +4,7 @@ org.gradle.caching=true
 
 rbcs.version = 0.2.0
 
-lys.version = 2025.02.08
+lys.version = 2025.02.26
 
 gitea.maven.url = https://gitea.woggioni.net/api/packages/woggioni/maven
 docker.registry.url=gitea.woggioni.net

rbcs-api/build.gradle

@@ -5,6 +5,7 @@ plugins {
 }
 
 dependencies {
+    api catalog.netty.common
     api catalog.netty.buffer
     api catalog.netty.handler
 }

rbcs-api/src/main/java/module-info.java

@@ -4,6 +4,7 @@ module net.woggioni.rbcs.api {
     requires io.netty.buffer;
     requires io.netty.handler;
     requires io.netty.transport;
+    requires io.netty.common;
     exports net.woggioni.rbcs.api;
     exports net.woggioni.rbcs.api.exception;
     exports net.woggioni.rbcs.api.message;

rbcs-api/src/main/java/net/woggioni/rbcs/api/AsyncCloseable.java

@@ -0,0 +1,13 @@
+package net.woggioni.rbcs.api;
+
+import java.util.concurrent.CompletableFuture;
+
+public interface AsyncCloseable extends AutoCloseable {
+
+    CompletableFuture<Void> asyncClose();
+
+    @Override
+    default void close() throws Exception {
+        asyncClose().get();
+    }
+}

rbcs-api/src/main/java/net/woggioni/rbcs/api/CacheHandlerFactory.java

@@ -1,7 +1,15 @@
 package net.woggioni.rbcs.api;
 
+import io.netty.channel.ChannelFactory;
 import io.netty.channel.ChannelHandler;
+import io.netty.channel.EventLoopGroup;
+import io.netty.channel.socket.DatagramChannel;
+import io.netty.channel.socket.SocketChannel;
 
-public interface CacheHandlerFactory extends AutoCloseable {
-    ChannelHandler newHandler();
+public interface CacheHandlerFactory extends AsyncCloseable {
+    ChannelHandler newHandler(
+            EventLoopGroup eventLoopGroup,
+            ChannelFactory<SocketChannel> socketChannelFactory,
+            ChannelFactory<DatagramChannel> datagramChannelFactory
+    );
 }

rbcs-api/src/main/java/net/woggioni/rbcs/api/Configuration.java

@@ -83,17 +83,6 @@ public class Configuration {
         Group extract(X509Certificate cert);
     }
 
-    @Value
-    public static class Throttling {
-        KeyStore keyStore;
-        TrustStore trustStore;
-        boolean verifyClients;
-    }
-
-    public enum ClientCertificate {
-        REQUIRED, OPTIONAL
-    }
-
     @Value
     public static class Tls {
         KeyStore keyStore;

rbcs-cli/build.gradle

@@ -9,20 +9,22 @@ plugins {
     id 'maven-publish'
 }
 
+import net.woggioni.gradle.envelope.EnvelopePlugin
 import net.woggioni.gradle.envelope.EnvelopeJarTask
 import net.woggioni.gradle.graalvm.NativeImageConfigurationTask
 import net.woggioni.gradle.graalvm.NativeImagePlugin
-import net.woggioni.gradle.graalvm.NativeImageTask
+import net.woggioni.gradle.graalvm.UpxTask
 import net.woggioni.gradle.graalvm.JlinkPlugin
 import net.woggioni.gradle.graalvm.JlinkTask
 
-Property<String> mainModuleName = objects.property(String.class)
-mainModuleName.set('net.woggioni.rbcs.cli')
-Property<String> mainClassName = objects.property(String.class)
-mainClassName.set('net.woggioni.rbcs.cli.RemoteBuildCacheServerCli')
+sourceSets {
+    configureNativeImage {
+        java {
+        }
+        kotlin {
 
-tasks.named(JavaPlugin.COMPILE_JAVA_TASK_NAME, JavaCompile) {
-    options.javaModuleMainClass = mainClassName
+        }
+    }
 }
 
 configurations {
@@ -32,16 +34,25 @@ configurations {
         canBeResolved = true
         visible = true
     }
-}
 
-envelopeJar {
-    mainModule = mainModuleName
-    mainClass = mainClassName
+    configureNativeImageImplementation {
+        extendsFrom implementation
+    }
+
+    configureNativeImageRuntimeOnly {
+        extendsFrom runtimeOnly
+    }
+
+    nativeImage {
+        extendsFrom runtimeClasspath
+    }
 
-    extraClasspath = ["plugins"]
 }
 
 dependencies {
+    configureNativeImageImplementation project
+    configureNativeImageImplementation project(':rbcs-server-memcache')
+
     implementation catalog.jwo
     implementation catalog.slf4j.api
     implementation catalog.picocli
@@ -52,32 +63,55 @@ dependencies {
 //    runtimeOnly catalog.slf4j.jdk14
     runtimeOnly catalog.logback.classic
 //    runtimeOnly catalog.slf4j.simple
+    nativeImage project(':rbcs-server-memcache')
+
 }
 
-Provider<EnvelopeJarTask> envelopeJarTaskProvider = tasks.named('envelopeJar', EnvelopeJarTask.class) {
-//    systemProperties['java.util.logging.config.class'] = 'net.woggioni.rbcs.LoggingConfig'
-//    systemProperties['log.config.source'] = 'net/woggioni/rbcs/cli/logging.properties'
-//    systemProperties['java.util.logging.config.file'] = 'classpath:net/woggioni/rbcs/cli/logging.properties'
+
+Property<String> mainModuleName = objects.property(String.class)
+mainModuleName.set('net.woggioni.rbcs.cli')
+Property<String> mainClassName = objects.property(String.class)
+mainClassName.set('net.woggioni.rbcs.cli.RemoteBuildCacheServerCli')
+
+tasks.named(JavaPlugin.COMPILE_JAVA_TASK_NAME, JavaCompile) {
+    options.javaModuleMainClass = mainClassName
+}
+
+Provider<Jar> jarTaskProvider = tasks.named(JavaPlugin.JAR_TASK_NAME, Jar)
+
+Provider<EnvelopeJarTask> envelopeJarTaskProvider = tasks.named(EnvelopePlugin.ENVELOPE_JAR_TASK_NAME, EnvelopeJarTask.class) {
+    mainModule = mainModuleName
+    mainClass = mainClassName
+
+    extraClasspath = ["plugins"]
+
     systemProperties['logback.configurationFile'] = 'classpath:net/woggioni/rbcs/cli/logback.xml'
     systemProperties['io.netty.leakDetectionLevel'] = 'DISABLED'
-
-//    systemProperties['org.slf4j.simpleLogger.showDateTime'] = 'true'
-//    systemProperties['org.slf4j.simpleLogger.defaultLogLevel'] = 'debug'
-//    systemProperties['org.slf4j.simpleLogger.log.com.google.code.yanf4j'] = 'warn'
-//    systemProperties['org.slf4j.simpleLogger.log.net.rubyeye.xmemcached'] = 'warn'
-//    systemProperties['org.slf4j.simpleLogger.dateTimeFormat'] = 'yyyy-MM-dd\'T\'HH:mm:ss.SSSZ'
 }
 
 tasks.named(NativeImagePlugin.CONFIGURE_NATIVE_IMAGE_TASK_NAME, NativeImageConfigurationTask) {
-    mainClass = mainClassName
-    mainModule = mainModuleName
+    mainClass = "net.woggioni.rbcs.cli.graal.GraalNativeImageConfiguration"
+    setClasspath(configurations.configureNativeImageRuntimeClasspath + sourceSets.graal.output.classesDirs)
+    mergeConfiguration = false
+    systemProperty('logback.configurationFile', 'classpath:net/woggioni/rbcs/cli/logback.xml')
+    systemProperty('io.netty.leakDetectionLevel', 'DISABLED')
+    modularity.inferModulePath = false
+    enabled = false
 }
 
-tasks.named(NativeImagePlugin.NATIVE_IMAGE_TASK_NAME, NativeImageTask) {
+nativeImage {
     mainClass = mainClassName
-    mainModule = mainModuleName
+//    mainModule = mainModuleName
     useMusl = true
     buildStaticImage = true
+    linkAtBuildTime = false
+    classpath = project.files(jarTaskProvider, configurations.nativeImage)
+    compressExecutable = true
+    compressionLevel = 10
+    useLZMA = false
+}
+
+Provider<UpxTask> upxTaskProvider = tasks.named(NativeImagePlugin.UPX_TASK_NAME, UpxTask) {
 }
 
 tasks.named(JlinkPlugin.JLINK_TASK_NAME, JlinkTask) {
@@ -95,14 +129,20 @@ tasks.named(JavaPlugin.PROCESS_RESOURCES_TASK_NAME, ProcessResources) {
 
 artifacts {
     release(envelopeJarTaskProvider)
+    release(upxTaskProvider)
 }
 
 publishing {
     publications {
         maven(MavenPublication) {
             artifact envelopeJar
+            artifact(upxTaskProvider) {
+                classifier = "linux-x86_64"
+                extension = "exe"
+            }
         }
     }
 }
 
 
+

rbcs-cli/native-image/jni-config.json

@@ -0,0 +1,6 @@
+[
+{
+  "name":"java.lang.Boolean",
+  "methods":[{"name":"getBoolean","parameterTypes":["java.lang.String"] }]
+}
+]

rbcs-cli/native-image/native-image.properties

@@ -1,2 +1,2 @@
-Args=-H:Optimize=3 --gc=serial --initialize-at-run-time=io.netty
+Args=-O3 --gc=serial --install-exit-handlers --initialize-at-run-time=io.netty --enable-url-protocols=jpms --initialize-at-build-time=net.woggioni.rbcs.common.RbcsUrlStreamHandlerFactory,net.woggioni.rbcs.common.RbcsUrlStreamHandlerFactory$JpmsHandler
 #-H:TraceClassInitialization=io.netty.handler.ssl.BouncyCastleAlpnSslUtils

rbcs-cli/native-image/predefined-classes-config.json

@@ -0,0 +1,8 @@
+[
+  {
+    "type":"agent-extracted",
+    "classes":[
+    ]
+  }
+]
+

rbcs-cli/native-image/proxy-config.json

@@ -0,0 +1,2 @@
+[
+]

rbcs-cli/native-image/reflect-config.json

@@ -0,0 +1,756 @@
+[
+{
+  "name":"android.os.Build$VERSION"
+},
+{
+  "name":"ch.qos.logback.classic.encoder.PatternLayoutEncoder",
+  "queryAllPublicMethods":true,
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"ch.qos.logback.classic.joran.SerializedModelConfigurator",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"ch.qos.logback.classic.util.DefaultJoranConfigurator",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"ch.qos.logback.core.ConsoleAppender",
+  "queryAllPublicMethods":true,
+  "methods":[{"name":"<init>","parameterTypes":[] }, {"name":"setTarget","parameterTypes":["java.lang.String"] }]
+},
+{
+  "name":"ch.qos.logback.core.OutputStreamAppender",
+  "methods":[{"name":"setEncoder","parameterTypes":["ch.qos.logback.core.encoder.Encoder"] }]
+},
+{
+  "name":"ch.qos.logback.core.encoder.Encoder",
+  "methods":[{"name":"valueOf","parameterTypes":["java.lang.String"] }]
+},
+{
+  "name":"ch.qos.logback.core.encoder.LayoutWrappingEncoder",
+  "methods":[{"name":"setParent","parameterTypes":["ch.qos.logback.core.spi.ContextAware"] }]
+},
+{
+  "name":"ch.qos.logback.core.pattern.PatternLayoutEncoderBase",
+  "methods":[{"name":"setPattern","parameterTypes":["java.lang.String"] }]
+},
+{
+  "name":"ch.qos.logback.core.spi.ContextAware",
+  "methods":[{"name":"valueOf","parameterTypes":["java.lang.String"] }]
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+{
+  "name":"com.aayushatharva.brotli4j.Brotli4jLoader"
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+  "name":"com.github.luben.zstd.Zstd"
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+  "name":"com.sun.crypto.provider.AESCipher$General",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
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+  "name":"com.sun.crypto.provider.ARCFOURCipher",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
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+  "name":"com.sun.crypto.provider.ChaCha20Cipher$ChaCha20Poly1305",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
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+  "name":"com.sun.crypto.provider.DESCipher",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
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+  "name":"com.sun.crypto.provider.DESedeCipher",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
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+  "name":"com.sun.crypto.provider.DHParameters",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
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+  "name":"com.sun.crypto.provider.GaloisCounterMode$AESGCM",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
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+  "name":"com.sun.crypto.provider.HmacCore$HmacSHA512",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
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+  "name":"com.sun.crypto.provider.PBKDF2Core$HmacSHA512",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
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+  "name":"com.sun.crypto.provider.TlsMasterSecretGenerator",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"com.sun.org.apache.xerces.internal.impl.dv.xs.ExtendedSchemaDVFactoryImpl",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"com.sun.org.apache.xerces.internal.impl.dv.xs.SchemaDVFactoryImpl",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
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+  "name":"groovy.lang.Closure"
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+  "name":"io.netty.bootstrap.ServerBootstrap$1"
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+  "name":"io.netty.bootstrap.ServerBootstrap$ServerBootstrapAcceptor",
+  "methods":[{"name":"channelRead","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Object"] }, {"name":"exceptionCaught","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Throwable"] }]
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+  "name":"io.netty.buffer.AbstractByteBufAllocator",
+  "queryAllDeclaredMethods":true
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+  "name":"io.netty.buffer.AbstractReferenceCountedByteBuf",
+  "fields":[{"name":"refCnt"}]
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+  "name":"io.netty.channel.AbstractChannelHandlerContext",
+  "fields":[{"name":"handlerState"}]
+},
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+  "name":"io.netty.channel.ChannelDuplexHandler",
+  "methods":[{"name":"bind","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.net.SocketAddress","io.netty.channel.ChannelPromise"] }, {"name":"close","parameterTypes":["io.netty.channel.ChannelHandlerContext","io.netty.channel.ChannelPromise"] }, {"name":"connect","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.net.SocketAddress","java.net.SocketAddress","io.netty.channel.ChannelPromise"] }, {"name":"deregister","parameterTypes":["io.netty.channel.ChannelHandlerContext","io.netty.channel.ChannelPromise"] }, {"name":"disconnect","parameterTypes":["io.netty.channel.ChannelHandlerContext","io.netty.channel.ChannelPromise"] }, {"name":"flush","parameterTypes":["io.netty.channel.ChannelHandlerContext"] }, {"name":"read","parameterTypes":["io.netty.channel.ChannelHandlerContext"] }, {"name":"write","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Object","io.netty.channel.ChannelPromise"] }]
+},
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+  "name":"io.netty.channel.ChannelHandlerAdapter",
+  "methods":[{"name":"exceptionCaught","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Throwable"] }]
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+  "name":"io.netty.channel.ChannelInboundHandlerAdapter",
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+  "methods":[{"name":"channelRegistered","parameterTypes":["io.netty.channel.ChannelHandlerContext"] }, {"name":"exceptionCaught","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Throwable"] }]
+},
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+  "name":"io.netty.channel.ChannelOutboundBuffer",
+  "fields":[{"name":"totalPendingSize"}, {"name":"unwritable"}]
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+  "methods":[{"name":"bind","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.net.SocketAddress","io.netty.channel.ChannelPromise"] }, {"name":"connect","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.net.SocketAddress","java.net.SocketAddress","io.netty.channel.ChannelPromise"] }, {"name":"deregister","parameterTypes":["io.netty.channel.ChannelHandlerContext","io.netty.channel.ChannelPromise"] }, {"name":"disconnect","parameterTypes":["io.netty.channel.ChannelHandlerContext","io.netty.channel.ChannelPromise"] }, {"name":"flush","parameterTypes":["io.netty.channel.ChannelHandlerContext"] }, {"name":"read","parameterTypes":["io.netty.channel.ChannelHandlerContext"] }]
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+  "fields":[{"name":"threadLocalRandomProbe"}]
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+  "name":"java.net.NetPermission"
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+  "name":"java.net.URLPermission",
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+{
+  "name":"net.woggioni.rbcs.cli.impl.converters.ByteSizeConverter",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"net.woggioni.rbcs.cli.impl.converters.DurationConverter",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"net.woggioni.rbcs.cli.impl.converters.OutputStreamConverter",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"net.woggioni.rbcs.client.RemoteBuildCacheClient$sendRequest$1$operationComplete$responseHandler$1",
+  "methods":[{"name":"channelInactive","parameterTypes":["io.netty.channel.ChannelHandlerContext"] }, {"name":"exceptionCaught","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Throwable"] }]
+},
+{
+  "name":"net.woggioni.rbcs.client.RemoteBuildCacheClient$sendRequest$1$operationComplete$timeoutHandler$1",
+  "methods":[{"name":"userEventTriggered","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Object"] }]
+},
+{
+  "name":"net.woggioni.rbcs.server.RemoteBuildCacheServer$HttpChunkContentCompressor",
+  "methods":[{"name":"write","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Object","io.netty.channel.ChannelPromise"] }]
+},
+{
+  "name":"net.woggioni.rbcs.server.RemoteBuildCacheServer$NettyHttpBasicAuthenticator"
+},
+{
+  "name":"net.woggioni.rbcs.server.RemoteBuildCacheServer$ServerInitializer"
+},
+{
+  "name":"net.woggioni.rbcs.server.RemoteBuildCacheServer$ServerInitializer$initChannel$4",
+  "methods":[{"name":"userEventTriggered","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Object"] }]
+},
+{
+  "name":"net.woggioni.rbcs.server.auth.AbstractNettyHttpAuthenticator",
+  "methods":[{"name":"channelRead","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Object"] }]
+},
+{
+  "name":"net.woggioni.rbcs.server.cache.FileSystemCacheHandler",
+  "methods":[{"name":"exceptionCaught","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Throwable"] }]
+},
+{
+  "name":"net.woggioni.rbcs.server.cache.InMemoryCacheHandler",
+  "methods":[{"name":"exceptionCaught","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Throwable"] }]
+},
+{
+  "name":"net.woggioni.rbcs.server.exception.ExceptionHandler",
+  "methods":[{"name":"exceptionCaught","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Throwable"] }]
+},
+{
+  "name":"net.woggioni.rbcs.server.handler.CacheContentHandler",
+  "methods":[{"name":"exceptionCaught","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Throwable"] }]
+},
+{
+  "name":"net.woggioni.rbcs.server.handler.MaxRequestSizeHandler",
+  "methods":[{"name":"channelRead","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Object"] }]
+},
+{
+  "name":"net.woggioni.rbcs.server.handler.ServerHandler",
+  "methods":[{"name":"channelRead","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Object"] }, {"name":"exceptionCaught","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Throwable"] }, {"name":"write","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Object","io.netty.channel.ChannelPromise"] }]
+},
+{
+  "name":"net.woggioni.rbcs.server.handler.TraceHandler",
+  "methods":[{"name":"channelRead","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Object"] }, {"name":"exceptionCaught","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Throwable"] }]
+},
+{
+  "name":"net.woggioni.rbcs.server.memcache.MemcacheCacheHandler",
+  "methods":[{"name":"exceptionCaught","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Throwable"] }]
+},
+{
+  "name":"net.woggioni.rbcs.server.memcache.client.MemcacheClient$sendRequest$1$operationComplete$handler$1",
+  "methods":[{"name":"channelInactive","parameterTypes":["io.netty.channel.ChannelHandlerContext"] }, {"name":"exceptionCaught","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Throwable"] }]
+},
+{
+  "name":"net.woggioni.rbcs.server.throttling.ThrottlingHandler",
+  "methods":[{"name":"channelRead","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Object"] }]
+},
+{
+  "name":"sun.misc.Unsafe",
+  "fields":[{"name":"theUnsafe"}],
+  "methods":[{"name":"copyMemory","parameterTypes":["java.lang.Object","long","java.lang.Object","long","long"] }, {"name":"getAndAddLong","parameterTypes":["java.lang.Object","long","long"] }, {"name":"getAndSetObject","parameterTypes":["java.lang.Object","long","java.lang.Object"] }, {"name":"invokeCleaner","parameterTypes":["java.nio.ByteBuffer"] }, {"name":"storeFence","parameterTypes":[] }]
+},
+{
+  "name":"sun.nio.ch.SelectorImpl",
+  "fields":[{"name":"publicSelectedKeys"}, {"name":"selectedKeys"}]
+},
+{
+  "name":"sun.security.pkcs12.PKCS12KeyStore",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.pkcs12.PKCS12KeyStore$DualFormatPKCS12",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.provider.DSA$SHA224withDSA",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.provider.DSA$SHA256withDSA",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.provider.JavaKeyStore$JKS",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.provider.MD5",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.provider.NativePRNG",
+  "methods":[{"name":"<init>","parameterTypes":[] }, {"name":"<init>","parameterTypes":["java.security.SecureRandomParameters"] }]
+},
+{
+  "name":"sun.security.provider.NativePRNG$NonBlocking",
+  "methods":[{"name":"<init>","parameterTypes":[] }, {"name":"<init>","parameterTypes":["java.security.SecureRandomParameters"] }]
+},
+{
+  "name":"sun.security.provider.SHA",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.provider.SHA2$SHA224",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.provider.SHA2$SHA256",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.provider.SHA5$SHA384",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.provider.SHA5$SHA512",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.provider.X509Factory",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.rsa.PSSParameters",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.rsa.RSAKeyFactory$Legacy",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.rsa.RSAPSSSignature",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.rsa.RSASignature$SHA224withRSA",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.ssl.KeyManagerFactoryImpl$SunX509",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.ssl.SSLContextImpl$DefaultSSLContext",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.ssl.SSLContextImpl$TLSContext",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.ssl.TrustManagerFactoryImpl$PKIXFactory",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"sun.security.x509.AuthorityInfoAccessExtension",
+  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
+},
+{
+  "name":"sun.security.x509.AuthorityKeyIdentifierExtension",
+  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
+},
+{
+  "name":"sun.security.x509.BasicConstraintsExtension",
+  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
+},
+{
+  "name":"sun.security.x509.CRLDistributionPointsExtension",
+  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
+},
+{
+  "name":"sun.security.x509.CertificatePoliciesExtension",
+  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
+},
+{
+  "name":"sun.security.x509.KeyUsageExtension",
+  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
+},
+{
+  "name":"sun.security.x509.NetscapeCertTypeExtension",
+  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
+},
+{
+  "name":"sun.security.x509.PrivateKeyUsageExtension",
+  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
+},
+{
+  "name":"sun.security.x509.SubjectAlternativeNameExtension",
+  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
+},
+{
+  "name":"sun.security.x509.SubjectKeyIdentifierExtension",
+  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
+}
+]

rbcs-cli/native-image/resource-config.json

@@ -0,0 +1,74 @@
+{
+  "resources": {
+    "includes": [
+      {
+        "pattern": "\\QMETA-INF/MANIFEST.MF\\E"
+      },
+      {
+        "pattern": "\\QMETA-INF/services/ch.qos.logback.classic.spi.Configurator\\E"
+      },
+      {
+        "pattern": "\\QMETA-INF/services/java.lang.System$LoggerFinder\\E"
+      },
+      {
+        "pattern": "\\QMETA-INF/services/java.net.spi.InetAddressResolverProvider\\E"
+      },
+      {
+        "pattern": "\\QMETA-INF/services/java.net.spi.URLStreamHandlerProvider\\E"
+      },
+      {
+        "pattern": "\\QMETA-INF/services/java.nio.channels.spi.SelectorProvider\\E"
+      },
+      {
+        "pattern": "\\QMETA-INF/services/java.time.zone.ZoneRulesProvider\\E"
+      },
+      {
+        "pattern": "\\QMETA-INF/services/javax.xml.parsers.DocumentBuilderFactory\\E"
+      },
+      {
+        "pattern": "\\QMETA-INF/services/javax.xml.parsers.SAXParserFactory\\E"
+      },
+      {
+        "pattern": "\\QMETA-INF/services/net.woggioni.rbcs.api.CacheProvider\\E"
+      },
+      {
+        "pattern": "\\QMETA-INF/services/org.slf4j.spi.SLF4JServiceProvider\\E"
+      },
+      {
+        "pattern": "\\Qclasspath:net/woggioni/rbcs/cli/logback.xml\\E"
+      },
+      {
+        "pattern": "\\Qlogback-test.scmo\\E"
+      },
+      {
+        "pattern": "\\Qlogback.scmo\\E"
+      },
+      {
+        "pattern": "\\Qnet/woggioni/rbcs/cli/logback.xml\\E"
+      },
+      {
+        "pattern": "\\Qnet/woggioni/rbcs/server/rbcs-default.xml\\E"
+      },
+      {
+        "pattern": "\\Qnet/woggioni/rbcs/server/schema/rbcs.xsd\\E"
+      },
+      {
+        "pattern": "\\Qnet/woggioni/rbcs/client/schema/rbcs-client.xsd\\E"
+      },
+      {
+        "pattern": "\\Q/net/woggioni/rbcs/server/memcache/schema/rbcs-memcache.xsd\\E"
+      },
+      {
+        "pattern": "java.base:\\Qsun/text/resources/LineBreakIteratorData\\E"
+      }
+    ]
+  },
+  "bundles": [
+    {
+      "name": "com.sun.org.apache.xerces.internal.impl.xpath.regex.message",
+      "locales": [
+        ""
+      ]
+    }
+  ]
+}

rbcs-cli/native-image/serialization-config.json

@@ -0,0 +1,11 @@
+{
+  "types":[
+    {
+      "name":"net.woggioni.rbcs.api.CacheValueMetadata"
+    }
+  ],
+  "lambdaCapturingTypes":[
+  ],
+  "proxies":[
+  ]
+}

rbcs-cli/src/graal/kotlin/net/woggioni/rbcs/cli/graal/GraalNativeImageConfiguration.kt

@@ -0,0 +1,161 @@
+package net.woggioni.rbcs.cli.graal
+
+import net.woggioni.rbcs.api.Configuration
+import net.woggioni.rbcs.api.Configuration.User
+import net.woggioni.rbcs.api.Role
+import net.woggioni.rbcs.cli.RemoteBuildCacheServerCli
+import net.woggioni.rbcs.cli.impl.commands.BenchmarkCommand
+import net.woggioni.rbcs.cli.impl.commands.HealthCheckCommand
+import net.woggioni.rbcs.client.RemoteBuildCacheClient
+import net.woggioni.rbcs.common.HostAndPort
+import net.woggioni.rbcs.common.PasswordSecurity.hashPassword
+import net.woggioni.rbcs.common.RBCS
+import net.woggioni.rbcs.common.Xml
+import net.woggioni.rbcs.server.RemoteBuildCacheServer
+import net.woggioni.rbcs.server.cache.FileSystemCacheConfiguration
+import net.woggioni.rbcs.server.cache.InMemoryCacheConfiguration
+import net.woggioni.rbcs.server.configuration.Parser
+import net.woggioni.rbcs.server.memcache.MemcacheCacheConfiguration
+import java.net.URI
+import java.nio.file.Path
+import java.time.Duration
+import java.time.temporal.ChronoUnit
+import java.util.concurrent.ExecutionException
+import java.util.zip.Deflater
+
+object GraalNativeImageConfiguration {
+    @JvmStatic
+    fun main(vararg args : String) {
+
+        val serverDoc = RemoteBuildCacheServer.DEFAULT_CONFIGURATION_URL.openStream().use {
+            Xml.parseXml(RemoteBuildCacheServer.DEFAULT_CONFIGURATION_URL, it)
+        }
+        Parser.parse(doc)
+
+        val clientDoc = RemoteBuildCacheClient.Configuration.openStream().use {
+            Xml.parseXml(RemoteBuildCacheServer.DEFAULT_CONFIGURATION_URL, it)
+        }
+        Parser.parse(doc)
+
+        val PASSWORD = "password"
+        val readersGroup = Configuration.Group("readers", setOf(Role.Reader), null, null)
+        val writersGroup = Configuration.Group("writers", setOf(Role.Writer), null, null)
+
+
+        val users = listOf(
+            User("user1", hashPassword(PASSWORD), setOf(readersGroup), null),
+            User("user2", hashPassword(PASSWORD), setOf(writersGroup), null),
+            User("user3", hashPassword(PASSWORD), setOf(readersGroup, writersGroup), null),
+            User("", null, setOf(readersGroup), null),
+            User("user4", hashPassword(PASSWORD), setOf(readersGroup),
+                Configuration.Quota(1, Duration.of(1, ChronoUnit.DAYS), 0, 1)
+            ),
+            User("user5", hashPassword(PASSWORD), setOf(readersGroup),
+                Configuration.Quota(1, Duration.of(5, ChronoUnit.SECONDS), 0, 1)
+            )
+        )
+
+        val serverPort = RBCS.getFreePort()
+
+        val caches = listOf<Configuration.Cache>(
+            InMemoryCacheConfiguration(
+                maxAge = Duration.ofSeconds(3600),
+                digestAlgorithm = "MD5",
+                compressionLevel = Deflater.DEFAULT_COMPRESSION,
+                compressionEnabled = false,
+                maxSize = 0x1000000,
+                chunkSize = 0x1000
+            ),
+            FileSystemCacheConfiguration(
+                Path.of(System.getProperty("java.io.tmpdir")).resolve("rbcs"),
+                maxAge = Duration.ofSeconds(3600),
+                digestAlgorithm = "MD5",
+                compressionLevel = Deflater.DEFAULT_COMPRESSION,
+                compressionEnabled = false,
+                chunkSize = 0x1000
+            ),
+            MemcacheCacheConfiguration(
+                listOf(MemcacheCacheConfiguration.Server(
+                    HostAndPort("127.0.0.1", 11211),
+                    1000,
+                    4)
+                ),
+                Duration.ofSeconds(60),
+                "MD5",
+                null,
+                1,
+                0x1000
+            )
+        )
+
+        for (cache in caches) {
+            val serverConfiguration = Configuration(
+                "127.0.0.1",
+                serverPort,
+                100,
+                null,
+                Configuration.EventExecutor(true),
+                Configuration.Connection(
+                    Duration.ofSeconds(10),
+                    Duration.ofSeconds(15),
+                    Duration.ofSeconds(15),
+                    0x10000,
+                ),
+                users.asSequence().map { it.name to it }.toMap(),
+                sequenceOf(writersGroup, readersGroup).map { it.name to it }.toMap(),
+                cache,
+                Configuration.BasicAuthentication(),
+                null,
+            )
+
+            MemcacheCacheConfiguration(
+                listOf(
+                    MemcacheCacheConfiguration.Server(
+                        HostAndPort("127.0.0.1", 11211),
+                        1000,
+                        4
+                    )
+                ),
+                Duration.ofSeconds(60),
+                "MD5",
+                null,
+                1,
+                0x1000
+            )
+
+            val serverHandle = RemoteBuildCacheServer(serverConfiguration).run()
+
+
+            val clientProfile = RemoteBuildCacheClient.Configuration.Profile(
+                URI.create("http://127.0.0.1:$serverPort/"),
+                null,
+                RemoteBuildCacheClient.Configuration.Authentication.BasicAuthenticationCredentials("user3", PASSWORD),
+                Duration.ofSeconds(3),
+                10,
+                true,
+                RemoteBuildCacheClient.Configuration.RetryPolicy(
+                    3,
+                    1000,
+                    1.2
+                ),
+                RemoteBuildCacheClient.Configuration.TrustStore(null, null, false, false)
+            )
+
+            HealthCheckCommand.run(clientProfile)
+
+            BenchmarkCommand.run(
+                clientProfile,
+                1000,
+                0x100,
+                true
+            )
+
+            serverHandle.sendShutdownSignal()
+            try {
+                serverHandle.get()
+            } catch (ee : ExecutionException) {
+            }
+        }
+        RemoteBuildCacheServerCli.main("--help")
+    }
+}

rbcs-cli/src/main/kotlin/net/woggioni/rbcs/cli/RemoteBuildCacheServerCli.kt

@@ -23,8 +23,13 @@ class RemoteBuildCacheServerCli : RbcsCommand() {
 
     class VersionProvider : AbstractVersionProvider()
     companion object {
+        private fun setPropertyIfNotPresent(key: String, value: String) {
+            System.getProperty(key) ?: System.setProperty(key, value)
+        }
         @JvmStatic
         fun main(vararg args: String) {
+            setPropertyIfNotPresent("logback.configurationFile", "net/woggioni/rbcs/cli/logback.xml")
+            setPropertyIfNotPresent("io.netty.leakDetectionLevel", "DISABLED")
             val currentClassLoader = RemoteBuildCacheServerCli::class.java.classLoader
             Thread.currentThread().contextClassLoader = currentClassLoader
             if(currentClassLoader.javaClass.name == "net.woggioni.envelope.loader.ModuleClassLoader") {

rbcs-cli/src/main/kotlin/net/woggioni/rbcs/cli/impl/commands/BenchmarkCommand.kt

@@ -26,52 +26,25 @@ import kotlin.random.Random
     showDefaultValues = true
 )
 class BenchmarkCommand : RbcsCommand() {
-    companion object{
+    companion object {
         private val log = createLogger<BenchmarkCommand>()
-    }
 
-    @CommandLine.Spec
-    private lateinit var spec: CommandLine.Model.CommandSpec
-
-    @CommandLine.Option(
-        names = ["-e", "--entries"],
-        description = ["Total number of elements to be added to the cache"],
-        paramLabel = "NUMBER_OF_ENTRIES"
-    )
-    private var numberOfEntries = 1000
-
-    @CommandLine.Option(
-        names = ["-s", "--size"],
-        description = ["Size of a cache value in bytes"],
-        paramLabel = "SIZE",
-        converter = [ByteSizeConverter::class]
-    )
-    private var size = 0x1000
-
-    @CommandLine.Option(
-        names = ["-r", "--random"],
-        description = ["Insert completely random byte values"]
-    )
-    private var randomValues = false
-
-    override fun run() {
-        val clientCommand = spec.parent().userObject() as ClientCommand
-        val profile = clientCommand.profileName.let { profileName ->
-            clientCommand.configuration.profiles[profileName]
-                ?: throw IllegalArgumentException("Profile $profileName does not exist in configuration")
-        }
+        fun run(profile : RemoteBuildCacheClient.Configuration.Profile,
+                numberOfEntries : Int,
+                entrySize : Int,
+                useRandomValue : Boolean,
+        ) {
             val progressThreshold = LongMath.ceilDiv(numberOfEntries.toLong(), 20)
             RemoteBuildCacheClient(profile).use { client ->
-
                 val entryGenerator = sequence {
                     val random = Random(SecureRandom.getInstance("NativePRNGNonBlocking").nextLong())
                     while (true) {
                         val key = JWO.bytesToHex(random.nextBytes(16))
-                    val value = if(randomValues) {
-                        random.nextBytes(size)
+                        val value = if (useRandomValue) {
+                            random.nextBytes(entrySize)
                         } else {
                             val byteValue = random.nextInt().toByte()
-                        ByteArray(size) {_ -> byteValue}
+                            ByteArray(entrySize) { _ -> byteValue }
                         }
                         yield(key to value)
                     }
@@ -90,7 +63,8 @@ class BenchmarkCommand : RbcsCommand() {
                         if (iterator.hasNext()) {
                             val entry = iterator.next()
                             semaphore.acquire()
-                        val future = client.put(entry.first, entry.second, CacheValueMetadata(null, null)).thenApply { entry }
+                            val future =
+                                client.put(entry.first, entry.second, CacheValueMetadata(null, null)).thenApply { entry }
                             future.whenComplete { result, ex ->
                                 if (ex != null) {
                                     log.error(ex.message, ex)
@@ -99,7 +73,7 @@ class BenchmarkCommand : RbcsCommand() {
                                 }
                                 semaphore.release()
                                 val completed = completionCounter.incrementAndGet()
-                            if(completed.mod(progressThreshold) == 0L) {
+                                if (completed.mod(progressThreshold) == 0L) {
                                     log.debug {
                                         "Inserted $completed / $numberOfEntries"
                                     }
@@ -147,7 +121,7 @@ class BenchmarkCommand : RbcsCommand() {
                             }
                             future.whenComplete { _, _ ->
                                 val completed = completionCounter.incrementAndGet()
-                            if(completed.mod(progressThreshold) == 0L) {
+                                if (completed.mod(progressThreshold) == 0L) {
                                     log.debug {
                                         "Retrieved $completed / ${entries.size}"
                                     }
@@ -169,4 +143,43 @@ class BenchmarkCommand : RbcsCommand() {
                 }
             }
         }
+    }
+
+    @CommandLine.Spec
+    private lateinit var spec: CommandLine.Model.CommandSpec
+
+    @CommandLine.Option(
+        names = ["-e", "--entries"],
+        description = ["Total number of elements to be added to the cache"],
+        paramLabel = "NUMBER_OF_ENTRIES"
+    )
+    private var numberOfEntries = 1000
+
+    @CommandLine.Option(
+        names = ["-s", "--size"],
+        description = ["Size of a cache value in bytes"],
+        paramLabel = "SIZE",
+        converter = [ByteSizeConverter::class]
+    )
+    private var size = 0x1000
+
+    @CommandLine.Option(
+        names = ["-r", "--random"],
+        description = ["Insert completely random byte values"]
+    )
+    private var randomValues = false
+
+    override fun run() {
+        val clientCommand = spec.parent().userObject() as ClientCommand
+        val profile = clientCommand.profileName.let { profileName ->
+            clientCommand.configuration.profiles[profileName]
+                ?: throw IllegalArgumentException("Profile $profileName does not exist in configuration")
+        }
+        run(
+            profile,
+            numberOfEntries,
+            size,
+            randomValues
+        )
+    }
 }

rbcs-cli/src/main/kotlin/net/woggioni/rbcs/cli/impl/commands/HealthCheckCommand.kt

@@ -15,17 +15,8 @@ import kotlin.random.Random
 class HealthCheckCommand : RbcsCommand() {
     companion object{
         private val log = createLogger<HealthCheckCommand>()
-    }
 
-    @CommandLine.Spec
-    private lateinit var spec: CommandLine.Model.CommandSpec
-
-    override fun run() {
-        val clientCommand = spec.parent().userObject() as ClientCommand
-        val profile = clientCommand.profileName.let { profileName ->
-            clientCommand.configuration.profiles[profileName]
-                ?: throw IllegalArgumentException("Profile $profileName does not exist in configuration")
-        }
+        fun run(profile : RemoteBuildCacheClient.Configuration.Profile) {
             RemoteBuildCacheClient(profile).use { client ->
                 val random = Random(SecureRandom.getInstance("NativePRNGNonBlocking").nextLong())
                 val nonce = ByteArray(0xa0)
@@ -45,4 +36,17 @@ class HealthCheckCommand : RbcsCommand() {
                 }.get()
             }
         }
+    }
+
+    @CommandLine.Spec
+    private lateinit var spec: CommandLine.Model.CommandSpec
+
+    override fun run() {
+        val clientCommand = spec.parent().userObject() as ClientCommand
+        val profile = clientCommand.profileName.let { profileName ->
+            clientCommand.configuration.profiles[profileName]
+                ?: throw IllegalArgumentException("Profile $profileName does not exist in configuration")
+        }
+        run(profile)
+    }
 }

rbcs-client/src/main/kotlin/net/woggioni/rbcs/client/Client.kt

@@ -37,6 +37,7 @@ import io.netty.util.concurrent.Future
 import io.netty.util.concurrent.GenericFutureListener
 import net.woggioni.rbcs.api.CacheValueMetadata
 import net.woggioni.rbcs.client.impl.Parser
+import net.woggioni.rbcs.common.RBCS.loadKeystore
 import net.woggioni.rbcs.common.Xml
 import net.woggioni.rbcs.common.createLogger
 import net.woggioni.rbcs.common.debug
@@ -54,6 +55,8 @@ import java.util.concurrent.CompletableFuture
 import java.util.concurrent.TimeUnit
 import java.util.concurrent.TimeoutException
 import java.util.concurrent.atomic.AtomicInteger
+import javax.net.ssl.TrustManagerFactory
+import javax.net.ssl.X509TrustManager
 import kotlin.random.Random
 import io.netty.util.concurrent.Future as NettyFuture
 
@@ -63,7 +66,7 @@ class RemoteBuildCacheClient(private val profile: Configuration.Profile) : AutoC
     }
 
     private val group: NioEventLoopGroup
-    private var sslContext: SslContext
+    private val sslContext: SslContext
     private val pool: ChannelPool
 
     data class Configuration(
@@ -78,6 +81,13 @@ class RemoteBuildCacheClient(private val profile: Configuration.Profile) : AutoC
             data class BasicAuthenticationCredentials(val username: String, val password: String) : Authentication()
         }
 
+        class TrustStore (
+            var file: Path?,
+            var password: String?,
+            var checkCertificateStatus: Boolean = false,
+            var verifyServerCertificate: Boolean = true,
+        )
+
         class RetryPolicy(
             val maxAttempts: Int,
             val initialDelayMillis: Long,
@@ -100,6 +110,7 @@ class RemoteBuildCacheClient(private val profile: Configuration.Profile) : AutoC
             val maxConnections: Int,
             val compressionEnabled: Boolean,
             val retryPolicy: RetryPolicy?,
+            val tlsTruststore : TrustStore?
         )
 
         companion object {
@@ -115,10 +126,33 @@ class RemoteBuildCacheClient(private val profile: Configuration.Profile) : AutoC
         group = NioEventLoopGroup()
         sslContext = SslContextBuilder.forClient().also { builder ->
             (profile.authentication as? Configuration.Authentication.TlsClientAuthenticationCredentials)?.let { tlsClientAuthenticationCredentials ->
-                builder.keyManager(
+                builder.apply {
+                    keyManager(
                         tlsClientAuthenticationCredentials.key,
                         *tlsClientAuthenticationCredentials.certificateChain
                     )
+                    profile.tlsTruststore?.let { trustStore ->
+                        if(!trustStore.verifyServerCertificate) {
+                            trustManager(object : X509TrustManager {
+                                override fun checkClientTrusted(certChain: Array<out X509Certificate>, p1: String?) {
+                                }
+
+                                override fun checkServerTrusted(certChain: Array<out X509Certificate>, p1: String?) {
+                                }
+
+                                override fun getAcceptedIssuers() = null
+                            })
+                        } else {
+                            trustStore.file?.let {
+                                val ts = loadKeystore(it, trustStore.password)
+                                val trustManagerFactory: TrustManagerFactory =
+                                    TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm())
+                                trustManagerFactory.init(ts)
+                                trustManager(trustManagerFactory)
+                            }
+                        }
+                    }
+                }
             }
         }.build()
 

rbcs-client/src/main/kotlin/net/woggioni/rbcs/client/impl/Parser.kt

@@ -31,6 +31,7 @@ object Parser {
                     var authentication: RemoteBuildCacheClient.Configuration.Authentication? = null
                     var retryPolicy: RemoteBuildCacheClient.Configuration.RetryPolicy? = null
                     var connection : RemoteBuildCacheClient.Configuration.Connection? = null
+                    var trustStore : RemoteBuildCacheClient.Configuration.TrustStore? = null
                     for (gchild in child.asIterable()) {
                         when (gchild.localName) {
                             "tls-client-auth" -> {
@@ -108,6 +109,17 @@ object Parser {
                                     writeIdleTimeout,
                                 )
                             }
+
+                            "tls-trust-store" -> {
+                                val file = gchild.renderAttribute("file")
+                                    ?.let(Path::of)
+                                val password = gchild.renderAttribute("password")
+                                val checkCertificateStatus = gchild.renderAttribute("check-certificate-status")
+                                    ?.let(String::toBoolean) ?: false
+                                val verifyServerCertificate = gchild.renderAttribute("verify-server-certificate")
+                                    ?.let(String::toBoolean) ?: true
+                                trustStore = RemoteBuildCacheClient.Configuration.TrustStore(file, password, checkCertificateStatus, verifyServerCertificate)
+                            }
                         }
                     }
                     val maxConnections = child.renderAttribute("max-connections")
@@ -126,7 +138,8 @@ object Parser {
                         connectionTimeout,
                         maxConnections,
                         compressionEnabled,
-                        retryPolicy
+                        retryPolicy,
+                        trustStore
                     )
                 }
             }

rbcs-client/src/main/resources/net/woggioni/rbcs/client/schema/rbcs-client.xsd

@@ -21,6 +21,7 @@
             </xs:choice>
             <xs:element name="connection" type="rbcs-client:connectionType" minOccurs="0" />
             <xs:element name="retry-policy" type="rbcs-client:retryType" minOccurs="0"/>
+            <xs:element name="tls-trust-store" type="rbcs-client:trustStoreType" minOccurs="0"/>
         </xs:sequence>
         <xs:attribute name="name" type="xs:token" use="required"/>
         <xs:attribute name="base-url" type="xs:anyURI" use="required"/>
@@ -57,4 +58,34 @@
         <xs:attribute name="exp" type="xs:double" default="2.0"/>
     </xs:complexType>
 
+    <xs:complexType name="trustStoreType">
+        <xs:attribute name="file" type="xs:string" use="required">
+            <xs:annotation>
+                <xs:documentation>
+                    Path to the trustore file
+                </xs:documentation>
+            </xs:annotation>
+        </xs:attribute>
+        <xs:attribute name="password" type="xs:string">
+            <xs:annotation>
+                <xs:documentation>
+                    Trustore file password
+                </xs:documentation>
+            </xs:annotation>
+        </xs:attribute>
+        <xs:attribute name="check-certificate-status" type="xs:boolean">
+            <xs:annotation>
+                <xs:documentation>
+                    Whether or not check the certificate validity using CRL/OCSP
+                </xs:documentation>
+            </xs:annotation>
+        </xs:attribute>
+        <xs:attribute name="verify-server-certificate" type="xs:boolean" use="optional" default="true">
+            <xs:annotation>
+                <xs:documentation>
+                    If false, the client will blindly trust the provided server certificate
+                </xs:documentation>
+            </xs:annotation>
+        </xs:attribute>
+    </xs:complexType>
 </xs:schema>

rbcs-client/src/test/kotlin/net/woggioni/rbcs/client/RetryTest.kt

@@ -129,7 +129,7 @@ class RetryTest {
                     previousAttempt.first + testArgs.initialDelay * Math.pow(testArgs.exp, index.toDouble()) * 1e6
                 val actualTimestamp = timestamp
                 val err = Math.abs(expectedTimestamp - actualTimestamp) / expectedTimestamp
-                Assertions.assertTrue(err < 1e-2)
+                Assertions.assertTrue(err < 0.1)
             }
             if (index == attempts.size - 1 && index < testArgs.maxAttempt - 1) {
                 /*

rbcs-client/src/test/resources/net/woggioni/rbcs/client/test/rbcs-client.xml

@@ -9,6 +9,8 @@
                 key-store-password="password"
                 key-alias="woggioni@c962475fa38"
                 key-password="key-password"/>
+        <connection write-idle-timeout="PT60S" read-idle-timeout="PT60S" write-timeout="PT0S" read-timeout="PT0S" idle-timeout="PT30S" />
+        <tls-trust-store file="file.pfx" password="password" check-certificate-status="false" verify-server-certificate="true"/>
     </profile>
     <profile name="profile2" base-url="https://rbcs2.example.com/">
         <basic-auth user="user" password="password"/>

rbcs-common/src/main/kotlin/net/woggioni/rbcs/common/RBCS.kt

@@ -1,9 +1,26 @@
 package net.woggioni.rbcs.common
 
 import net.woggioni.jwo.JWO
+import net.woggioni.jwo.Tuple2
+import java.io.IOException
+import java.net.InetAddress
+import java.net.ServerSocket
 import java.net.URI
 import java.net.URL
+import java.nio.file.Files
+import java.nio.file.Path
+import java.security.KeyStore
 import java.security.MessageDigest
+import java.security.cert.CertPathValidator
+import java.security.cert.CertPathValidatorException
+import java.security.cert.CertificateException
+import java.security.cert.CertificateFactory
+import java.security.cert.PKIXParameters
+import java.security.cert.PKIXRevocationChecker
+import java.security.cert.X509Certificate
+import java.util.EnumSet
+import javax.net.ssl.TrustManagerFactory
+import javax.net.ssl.X509TrustManager
 
 object RBCS {
     fun String.toUrl() : URL = URL.of(URI(this), null)
@@ -32,7 +49,7 @@ object RBCS {
 
     fun digest(
         data: ByteArray,
-        md: MessageDigest = MessageDigest.getInstance("MD5")
+        md: MessageDigest
     ): ByteArray {
         md.update(data)
         return md.digest()
@@ -40,7 +57,7 @@ object RBCS {
 
     fun digestString(
         data: ByteArray,
-        md: MessageDigest = MessageDigest.getInstance("MD5")
+        md: MessageDigest
     ): String {
         return JWO.bytesToHex(digest(data, md))
     }
@@ -58,4 +75,86 @@ object RBCS {
             null
         }
     }
+
+    fun getFreePort(): Int {
+        var count = 0
+        while (count < 50) {
+            try {
+                ServerSocket(0, 50, InetAddress.getLocalHost()).use { serverSocket ->
+                    val candidate = serverSocket.localPort
+                    if (candidate > 0) {
+                        return candidate
+                    } else {
+                        throw RuntimeException("Got invalid port number: $candidate")
+                    }
+                }
+            } catch (ignored: IOException) {
+                ++count
+            }
+        }
+        throw RuntimeException("Error trying to find an open port")
+    }
+
+    fun loadKeystore(file: Path, password: String?): KeyStore {
+        val ext = JWO.splitExtension(file)
+            .map(Tuple2<String, String>::get_2)
+            .orElseThrow {
+                IllegalArgumentException(
+                    "Keystore file '${file}' must have .jks, .p12, .pfx extension"
+                )
+            }
+        val keystore = when (ext.substring(1).lowercase()) {
+            "jks" -> KeyStore.getInstance("JKS")
+            "p12", "pfx" -> KeyStore.getInstance("PKCS12")
+            else -> throw IllegalArgumentException(
+                "Keystore file '${file}' must have .jks, .p12, .pfx extension"
+            )
+        }
+        Files.newInputStream(file).use {
+            keystore.load(it, password?.let(String::toCharArray))
+        }
+        return keystore
+    }
+
+    fun getTrustManager(trustStore: KeyStore?, certificateRevocationEnabled: Boolean): X509TrustManager {
+        return if (trustStore != null) {
+            val certificateFactory = CertificateFactory.getInstance("X.509")
+            val validator = CertPathValidator.getInstance("PKIX").apply {
+                val rc = revocationChecker as PKIXRevocationChecker
+                rc.options = EnumSet.of(
+                    PKIXRevocationChecker.Option.NO_FALLBACK
+                )
+            }
+            val params = PKIXParameters(trustStore).apply {
+                isRevocationEnabled = certificateRevocationEnabled
+            }
+            object : X509TrustManager {
+                override fun checkClientTrusted(chain: Array<out X509Certificate>, authType: String) {
+                    val clientCertificateChain = certificateFactory.generateCertPath(chain.toList())
+                    try {
+                        validator.validate(clientCertificateChain, params)
+                    } catch (ex: CertPathValidatorException) {
+                        throw CertificateException(ex)
+                    }
+                }
+
+                override fun checkServerTrusted(chain: Array<out X509Certificate>, authType: String) {
+                    throw NotImplementedError()
+                }
+
+                private val acceptedIssuers = trustStore.aliases().asSequence()
+                    .filter(trustStore::isCertificateEntry)
+                    .map(trustStore::getCertificate)
+                    .map { it as X509Certificate }
+                    .toList()
+                    .toTypedArray()
+
+                override fun getAcceptedIssuers() = acceptedIssuers
+            }
+        } else {
+            val trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm())
+            trustManagerFactory.trustManagers.asSequence().filter { it is X509TrustManager }
+                .single() as X509TrustManager
+        }
+    }
 }

rbcs-server-memcache/src/main/kotlin/net/woggioni/rbcs/server/memcache/MemcacheCacheConfiguration.kt

@@ -1,10 +1,20 @@
 package net.woggioni.rbcs.server.memcache
 
+import io.netty.channel.ChannelFactory
+import io.netty.channel.ChannelHandler
+import io.netty.channel.EventLoopGroup
+import io.netty.channel.pool.FixedChannelPool
+import io.netty.channel.socket.DatagramChannel
+import io.netty.channel.socket.SocketChannel
 import net.woggioni.rbcs.api.CacheHandlerFactory
 import net.woggioni.rbcs.api.Configuration
 import net.woggioni.rbcs.common.HostAndPort
 import net.woggioni.rbcs.server.memcache.client.MemcacheClient
 import java.time.Duration
+import java.util.concurrent.CompletableFuture
+import java.util.concurrent.ConcurrentHashMap
+import java.util.concurrent.atomic.AtomicInteger
+import java.util.concurrent.atomic.AtomicReference
 
 data class MemcacheCacheConfiguration(
     val servers: List<Server>,
@@ -12,7 +22,7 @@ data class MemcacheCacheConfiguration(
     val digestAlgorithm: String? = null,
     val compressionMode: CompressionMode? = null,
     val compressionLevel: Int,
-    val chunkSize : Int
+    val chunkSize: Int
 ) : Configuration.Cache {
 
     enum class CompressionMode {
@@ -23,19 +33,58 @@ data class MemcacheCacheConfiguration(
     }
 
     data class Server(
-        val endpoint : HostAndPort,
-        val connectionTimeoutMillis : Int?,
-        val maxConnections : Int
+        val endpoint: HostAndPort,
+        val connectionTimeoutMillis: Int?,
+        val maxConnections: Int
     )
 
-
     override fun materialize() = object : CacheHandlerFactory {
-        private val client = MemcacheClient(this@MemcacheCacheConfiguration.servers, chunkSize)
-        override fun close() {
-            client.close()
+
+        private val connectionPoolMap = ConcurrentHashMap<HostAndPort, FixedChannelPool>()
+
+        override fun newHandler(
+            eventLoop: EventLoopGroup,
+            socketChannelFactory: ChannelFactory<SocketChannel>,
+            datagramChannelFactory: ChannelFactory<DatagramChannel>
+        ): ChannelHandler {
+            return MemcacheCacheHandler(
+                MemcacheClient(
+                    this@MemcacheCacheConfiguration.servers,
+                    chunkSize,
+                    eventLoop,
+                    socketChannelFactory,
+                    connectionPoolMap
+                ),
+                digestAlgorithm,
+                compressionMode != null,
+                compressionLevel,
+                chunkSize,
+                maxAge
+            )
+        }
+
+        override fun asyncClose() = object : CompletableFuture<Void>() {
+            init {
+                val failure = AtomicReference<Throwable>(null)
+                val pools = connectionPoolMap.values.toList()
+                val npools = pools.size
+                val finished = AtomicInteger(0)
+                pools.forEach { pool ->
+                    pool.closeAsync().addListener {
+                        if (!it.isSuccess) {
+                            failure.compareAndSet(null, it.cause())
+                        }
+                        if(finished.incrementAndGet() == npools) {
+                            when(val ex = failure.get()) {
+                                null -> complete(null)
+                                else -> completeExceptionally(ex)
+                            }
+                        }
+                    }
+                }
+            }
         }
 
-        override fun newHandler() = MemcacheCacheHandler(client, digestAlgorithm, compressionMode != null, compressionLevel, chunkSize, maxAge)
     }
 
     override fun getNamespaceURI() = "urn:net.woggioni.rbcs.server.memcache"

rbcs-server-memcache/src/main/kotlin/net/woggioni/rbcs/server/memcache/client/MemcacheClient.kt

@@ -4,16 +4,17 @@ package net.woggioni.rbcs.server.memcache.client
 import io.netty.bootstrap.Bootstrap
 import io.netty.buffer.ByteBuf
 import io.netty.channel.Channel
+import io.netty.channel.ChannelFactory
 import io.netty.channel.ChannelFutureListener
 import io.netty.channel.ChannelHandlerContext
 import io.netty.channel.ChannelOption
 import io.netty.channel.ChannelPipeline
+import io.netty.channel.EventLoopGroup
 import io.netty.channel.SimpleChannelInboundHandler
-import io.netty.channel.nio.NioEventLoopGroup
 import io.netty.channel.pool.AbstractChannelPoolHandler
 import io.netty.channel.pool.ChannelPool
 import io.netty.channel.pool.FixedChannelPool
-import io.netty.channel.socket.nio.NioSocketChannel
+import io.netty.channel.socket.SocketChannel
 import io.netty.handler.codec.memcache.LastMemcacheContent
 import io.netty.handler.codec.memcache.MemcacheContent
 import io.netty.handler.codec.memcache.MemcacheObject
@@ -33,23 +34,22 @@ import java.util.concurrent.ConcurrentHashMap
 import io.netty.util.concurrent.Future as NettyFuture
 
 
-class MemcacheClient(private val servers: List<MemcacheCacheConfiguration.Server>, private val chunkSize : Int) : AutoCloseable {
+class MemcacheClient(
+    private val servers: List<MemcacheCacheConfiguration.Server>,
+    private val chunkSize : Int,
+    private val group: EventLoopGroup,
+    private val channelFactory: ChannelFactory<SocketChannel>,
+    private val connectionPool: ConcurrentHashMap<HostAndPort, FixedChannelPool>
+) : AutoCloseable {
 
     private companion object {
         private val log = createLogger<MemcacheCacheHandler>()
     }
 
-    private val group: NioEventLoopGroup
-    private val connectionPool: MutableMap<HostAndPort, ChannelPool> = ConcurrentHashMap()
-
-    init {
-        group = NioEventLoopGroup()
-    }
-
     private fun newConnectionPool(server: MemcacheCacheConfiguration.Server): FixedChannelPool {
         val bootstrap = Bootstrap().apply {
             group(group)
-            channel(NioSocketChannel::class.java)
+            channelFactory(channelFactory)
             option(ChannelOption.SO_KEEPALIVE, true)
             remoteAddress(InetSocketAddress(server.endpoint.host, server.endpoint.port))
             server.connectionTimeoutMillis?.let {

rbcs-server-memcache/src/main/resources/net/woggioni/rbcs/server/memcache/schema/rbcs-memcache.xsd

@@ -21,7 +21,7 @@
                 </xs:sequence>
                 <xs:attribute name="max-age" type="xs:duration" default="P1D"/>
                 <xs:attribute name="chunk-size" type="rbcs:byteSizeType" default="0x10000"/>
-                <xs:attribute name="digest" type="xs:token" />
+                <xs:attribute name="digest" type="xs:token"/>
                 <xs:attribute name="compression-mode" type="rbcs-memcache:compressionType"/>
                 <xs:attribute name="compression-level" type="rbcs:compressionLevelType" default="-1"/>
             </xs:extension>

rbcs-server/src/main/kotlin/net/woggioni/rbcs/server/RemoteBuildCacheServer.kt

@@ -3,6 +3,7 @@ package net.woggioni.rbcs.server
 import io.netty.bootstrap.ServerBootstrap
 import io.netty.buffer.ByteBuf
 import io.netty.channel.Channel
+import io.netty.channel.ChannelFactory
 import io.netty.channel.ChannelFuture
 import io.netty.channel.ChannelHandler.Sharable
 import io.netty.channel.ChannelHandlerContext
@@ -11,7 +12,12 @@ import io.netty.channel.ChannelInitializer
 import io.netty.channel.ChannelOption
 import io.netty.channel.ChannelPromise
 import io.netty.channel.nio.NioEventLoopGroup
+import io.netty.channel.socket.DatagramChannel
+import io.netty.channel.socket.ServerSocketChannel
+import io.netty.channel.socket.SocketChannel
+import io.netty.channel.socket.nio.NioDatagramChannel
 import io.netty.channel.socket.nio.NioServerSocketChannel
+import io.netty.channel.socket.nio.NioSocketChannel
 import io.netty.handler.codec.compression.CompressionOptions
 import io.netty.handler.codec.http.DefaultHttpContent
 import io.netty.handler.codec.http.HttpContentCompressor
@@ -29,12 +35,13 @@ import io.netty.handler.timeout.IdleStateHandler
 import io.netty.util.AttributeKey
 import io.netty.util.concurrent.DefaultEventExecutorGroup
 import io.netty.util.concurrent.EventExecutorGroup
-import net.woggioni.jwo.JWO
-import net.woggioni.jwo.Tuple2
+import net.woggioni.rbcs.api.AsyncCloseable
 import net.woggioni.rbcs.api.Configuration
 import net.woggioni.rbcs.api.exception.ConfigurationException
 import net.woggioni.rbcs.common.PasswordSecurity.decodePasswordHash
 import net.woggioni.rbcs.common.PasswordSecurity.hashPassword
+import net.woggioni.rbcs.common.RBCS.getTrustManager
+import net.woggioni.rbcs.common.RBCS.loadKeystore
 import net.woggioni.rbcs.common.RBCS.toUrl
 import net.woggioni.rbcs.common.Xml
 import net.woggioni.rbcs.common.createLogger
@@ -42,7 +49,6 @@ import net.woggioni.rbcs.common.debug
 import net.woggioni.rbcs.common.info
 import net.woggioni.rbcs.server.auth.AbstractNettyHttpAuthenticator
 import net.woggioni.rbcs.server.auth.Authorizer
-import net.woggioni.rbcs.server.auth.ClientCertificateValidator
 import net.woggioni.rbcs.server.auth.RoleAuthorizer
 import net.woggioni.rbcs.server.configuration.Parser
 import net.woggioni.rbcs.server.configuration.Serializer
@@ -56,7 +62,6 @@ import java.io.OutputStream
 import java.net.InetSocketAddress
 import java.nio.file.Files
 import java.nio.file.Path
-import java.security.KeyStore
 import java.security.PrivateKey
 import java.security.cert.X509Certificate
 import java.time.Duration
@@ -80,7 +85,7 @@ class RemoteBuildCacheServer(private val cfg: Configuration) {
         val userAttribute: AttributeKey<Configuration.User> = AttributeKey.valueOf("user")
         val groupAttribute: AttributeKey<Set<Configuration.Group>> = AttributeKey.valueOf("group")
 
-        val DEFAULT_CONFIGURATION_URL by lazy { "classpath:net/woggioni/rbcs/server/rbcs-default.xml".toUrl() }
+        val DEFAULT_CONFIGURATION_URL by lazy { "jpms://net.woggioni.rbcs.server/net/woggioni/rbcs/server/rbcs-default.xml".toUrl() }
         private const val SSL_HANDLER_NAME = "sslHandler"
 
         fun loadConfiguration(configurationFile: Path): Configuration {
@@ -200,8 +205,10 @@ class RemoteBuildCacheServer(private val cfg: Configuration) {
 
     private class ServerInitializer(
         private val cfg: Configuration,
+        private val channelFactory : ChannelFactory<SocketChannel>,
+        private val datagramChannelFactory : ChannelFactory<DatagramChannel>,
         private val eventExecutorGroup: EventExecutorGroup
-    ) : ChannelInitializer<Channel>(), AutoCloseable {
+    ) : ChannelInitializer<Channel>(), AsyncCloseable {
 
         companion object {
             private fun createSslCtx(tls: Configuration.Tls): SslContext {
@@ -221,7 +228,7 @@ class RemoteBuildCacheServer(private val cfg: Configuration) {
                         val clientAuth = tls.trustStore?.let { trustStore ->
                             val ts = loadKeystore(trustStore.file, trustStore.password)
                             trustManager(
-                                ClientCertificateValidator.getTrustManager(ts, trustStore.isCheckCertificateStatus)
+                                getTrustManager(ts, trustStore.isCheckCertificateStatus)
                             )
                             if (trustStore.isRequireClientCertificate) ClientAuth.REQUIRE
                             else ClientAuth.OPTIONAL
@@ -231,27 +238,6 @@ class RemoteBuildCacheServer(private val cfg: Configuration) {
                 }
             }
 
-            fun loadKeystore(file: Path, password: String?): KeyStore {
-                val ext = JWO.splitExtension(file)
-                    .map(Tuple2<String, String>::get_2)
-                    .orElseThrow {
-                        IllegalArgumentException(
-                            "Keystore file '${file}' must have .jks, .p12, .pfx extension"
-                        )
-                    }
-                val keystore = when (ext.substring(1).lowercase()) {
-                    "jks" -> KeyStore.getInstance("JKS")
-                    "p12", "pfx" -> KeyStore.getInstance("PKCS12")
-                    else -> throw IllegalArgumentException(
-                        "Keystore file '${file}' must have .jks, .p12, .pfx extension"
-                    )
-                }
-                Files.newInputStream(file).use {
-                    keystore.load(it, password?.let(String::toCharArray))
-                }
-                return keystore
-            }
-
             private val log = createLogger<ServerInitializer>()
         }
 
@@ -368,21 +354,20 @@ class RemoteBuildCacheServer(private val cfg: Configuration) {
                 ServerHandler(prefix)
             }
             pipeline.addLast(eventExecutorGroup, ServerHandler.NAME, serverHandler)
-            pipeline.addLast(cacheHandlerFactory.newHandler())
+
+            pipeline.addLast(cacheHandlerFactory.newHandler(ch.eventLoop(), channelFactory, datagramChannelFactory))
             pipeline.addLast(TraceHandler)
             pipeline.addLast(ExceptionHandler)
         }
 
-        override fun close() {
-            cacheHandlerFactory.close()
-        }
+        override fun asyncClose() = cacheHandlerFactory.asyncClose()
     }
 
     class ServerHandle(
         closeFuture: ChannelFuture,
         private val bossGroup: EventExecutorGroup,
         private val executorGroups: Iterable<EventExecutorGroup>,
-        private val serverInitializer: AutoCloseable,
+        private val serverInitializer: AsyncCloseable,
     ) : Future<Void> by from(closeFuture, executorGroups, serverInitializer) {
 
         companion object {
@@ -391,13 +376,28 @@ class RemoteBuildCacheServer(private val cfg: Configuration) {
             private fun from(
                 closeFuture: ChannelFuture,
                 executorGroups: Iterable<EventExecutorGroup>,
-                serverInitializer: AutoCloseable
+                serverInitializer: AsyncCloseable
             ): CompletableFuture<Void> {
                 val result = CompletableFuture<Void>()
                 closeFuture.addListener {
                     val errors = mutableListOf<Throwable>()
                     val deadline = Instant.now().plusSeconds(20)
+                    try {
+                        serverInitializer.close()
+                    } catch (ex: Throwable) {
+                        log.error(ex.message, ex)
+                        errors.addLast(ex)
+                    }
 
+                    serverInitializer.asyncClose().whenComplete { _, ex ->
+                        if(ex != null) {
+                            log.error(ex.message, ex)
+                            errors.addLast(ex)
+                        }
+
+                        executorGroups.map {
+                            it.shutdownGracefully()
+                        }
 
                         for (executorGroup in executorGroups) {
                             val future = executorGroup.terminationFuture()
@@ -417,18 +417,14 @@ class RemoteBuildCacheServer(private val cfg: Configuration) {
                                 errors.addLast(ex)
                             }
                         }
-                    try {
-                        serverInitializer.close()
-                    } catch (ex: Throwable) {
-                        log.error(ex.message, ex)
-                        errors.addLast(ex)
-                    }
+
                         if(errors.isEmpty()) {
                             result.complete(null)
                         } else {
                             result.completeExceptionally(errors.first())
                         }
                     }
+                }
 
                 return result.thenAccept {
                     log.info {
@@ -441,16 +437,15 @@ class RemoteBuildCacheServer(private val cfg: Configuration) {
 
         fun sendShutdownSignal() {
             bossGroup.shutdownGracefully()
-            executorGroups.map {
-                it.shutdownGracefully()
-            }
         }
     }
 
     fun run(): ServerHandle {
         // Create the multithreaded event loops for the server
         val bossGroup = NioEventLoopGroup(1)
-        val serverSocketChannel = NioServerSocketChannel::class.java
+        val channelFactory = ChannelFactory<SocketChannel> { NioSocketChannel() }
+        val datagramChannelFactory = ChannelFactory<DatagramChannel> { NioDatagramChannel() }
+        val serverChannelFactory = ChannelFactory<ServerSocketChannel> { NioServerSocketChannel() }
         val workerGroup = NioEventLoopGroup(0)
         val eventExecutorGroup = run {
             val threadFactory = if (cfg.eventExecutor.isUseVirtualThreads) {
@@ -460,11 +455,11 @@ class RemoteBuildCacheServer(private val cfg: Configuration) {
             }
             DefaultEventExecutorGroup(Runtime.getRuntime().availableProcessors(), threadFactory)
         }
-        val serverInitializer = ServerInitializer(cfg, eventExecutorGroup)
+        val serverInitializer = ServerInitializer(cfg, channelFactory, datagramChannelFactory, workerGroup)
         val bootstrap = ServerBootstrap().apply {
             // Configure the server
             group(bossGroup, workerGroup)
-            channel(serverSocketChannel)
+            channelFactory(serverChannelFactory)
             childHandler(serverInitializer)
             option(ChannelOption.SO_BACKLOG, cfg.incomingConnectionsBacklogSize)
             childOption(ChannelOption.SO_KEEPALIVE, true)

rbcs-server/src/main/kotlin/net/woggioni/rbcs/server/auth/ClientCertificateValidator.kt

@@ -1,90 +0,0 @@
-package net.woggioni.rbcs.server.auth
-
-import io.netty.channel.ChannelHandlerContext
-import io.netty.channel.ChannelInboundHandlerAdapter
-import io.netty.handler.ssl.SslHandler
-import io.netty.handler.ssl.SslHandshakeCompletionEvent
-import java.security.KeyStore
-import java.security.cert.CertPathValidator
-import java.security.cert.CertPathValidatorException
-import java.security.cert.CertificateException
-import java.security.cert.CertificateFactory
-import java.security.cert.PKIXParameters
-import java.security.cert.PKIXRevocationChecker
-import java.security.cert.X509Certificate
-import java.util.EnumSet
-import javax.net.ssl.SSLSession
-import javax.net.ssl.TrustManagerFactory
-import javax.net.ssl.X509TrustManager
-
-
-class ClientCertificateValidator private constructor(
-    private val sslHandler: SslHandler,
-    private val x509TrustManager: X509TrustManager
-) : ChannelInboundHandlerAdapter() {
-    override fun userEventTriggered(ctx: ChannelHandlerContext, evt: Any) {
-        if (evt is SslHandshakeCompletionEvent) {
-            if (evt.isSuccess) {
-                val session: SSLSession = sslHandler.engine().session
-                val clientCertificateChain = session.peerCertificates as Array<X509Certificate>
-                val authType: String = clientCertificateChain[0].publicKey.algorithm
-                x509TrustManager.checkClientTrusted(clientCertificateChain, authType)
-            } else {
-                // Handle the failure, for example by closing the channel.
-            }
-        }
-        super.userEventTriggered(ctx, evt)
-    }
-
-    companion object {
-        fun getTrustManager(trustStore: KeyStore?, certificateRevocationEnabled: Boolean): X509TrustManager {
-            return if (trustStore != null) {
-                val certificateFactory = CertificateFactory.getInstance("X.509")
-                val validator = CertPathValidator.getInstance("PKIX").apply {
-                    val rc = revocationChecker as PKIXRevocationChecker
-                    rc.options = EnumSet.of(
-                        PKIXRevocationChecker.Option.NO_FALLBACK
-                    )
-                }
-                val params = PKIXParameters(trustStore).apply {
-                    isRevocationEnabled = certificateRevocationEnabled
-                }
-                object : X509TrustManager {
-                    override fun checkClientTrusted(chain: Array<out X509Certificate>, authType: String) {
-                        val clientCertificateChain = certificateFactory.generateCertPath(chain.toList())
-                        try {
-                            validator.validate(clientCertificateChain, params)
-                        } catch (ex: CertPathValidatorException) {
-                            throw CertificateException(ex)
-                        }
-                    }
-
-                    override fun checkServerTrusted(chain: Array<out X509Certificate>, authType: String) {
-                        throw NotImplementedError()
-                    }
-
-                    private val acceptedIssuers = trustStore.aliases().asSequence()
-                        .filter(trustStore::isCertificateEntry)
-                        .map(trustStore::getCertificate)
-                        .map { it as X509Certificate }
-                        .toList()
-                        .toTypedArray()
-
-                    override fun getAcceptedIssuers() = acceptedIssuers
-                }
-            } else {
-                val trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm())
-                trustManagerFactory.trustManagers.asSequence().filter { it is X509TrustManager }
-                    .single() as X509TrustManager
-            }
-        }
-
-        fun of(
-            sslHandler: SslHandler,
-            trustStore: KeyStore?,
-            certificateRevocationEnabled: Boolean
-        ): ClientCertificateValidator {
-            return ClientCertificateValidator(sslHandler, getTrustManager(trustStore, certificateRevocationEnabled))
-        }
-    }
-}

rbcs-server/src/main/kotlin/net/woggioni/rbcs/server/cache/FileSystemCache.kt

@@ -1,6 +1,7 @@
 package net.woggioni.rbcs.server.cache
 
 import net.woggioni.jwo.JWO
+import net.woggioni.rbcs.api.AsyncCloseable
 import net.woggioni.rbcs.api.CacheValueMetadata
 import net.woggioni.rbcs.common.createLogger
 import java.io.ByteArrayOutputStream
@@ -18,11 +19,12 @@ import java.nio.file.StandardOpenOption
 import java.nio.file.attribute.BasicFileAttributes
 import java.time.Duration
 import java.time.Instant
+import java.util.concurrent.CompletableFuture
 
 class FileSystemCache(
     val root: Path,
     val maxAge: Duration
-) : AutoCloseable {
+) : AsyncCloseable {
 
     class EntryValue(val metadata: CacheValueMetadata, val channel : FileChannel, val offset : Long, val size : Long) : Serializable
 
@@ -112,10 +114,19 @@ class FileSystemCache(
         return FileSink(metadata, file, tmpFile)
     }
 
-    private val garbageCollector = Thread.ofVirtual().name("file-system-cache-gc").start {
+    private val closeFuture = object : CompletableFuture<Void>() {
+        init {
+            Thread.ofVirtual().name("file-system-cache-gc").start {
+                try {
                     while (running) {
                         gc()
                     }
+                    complete(null)
+                } catch (ex : Throwable) {
+                    completeExceptionally(ex)
+                }
+            }
+        }
     }
 
     private fun gc() {
@@ -151,8 +162,8 @@ class FileSystemCache(
         return result
     }
 
-    override fun close() {
+    override fun asyncClose() : CompletableFuture<Void> {
         running = false
-        garbageCollector.join()
+        return closeFuture
     }
 }

rbcs-server/src/main/kotlin/net/woggioni/rbcs/server/cache/FileSystemCacheConfiguration.kt

@@ -1,5 +1,9 @@
 package net.woggioni.rbcs.server.cache
 
+import io.netty.channel.ChannelFactory
+import io.netty.channel.EventLoopGroup
+import io.netty.channel.socket.DatagramChannel
+import io.netty.channel.socket.SocketChannel
 import net.woggioni.jwo.Application
 import net.woggioni.rbcs.api.CacheHandlerFactory
 import net.woggioni.rbcs.api.Configuration
@@ -19,11 +23,13 @@ data class FileSystemCacheConfiguration(
     override fun materialize() = object : CacheHandlerFactory {
         private val cache = FileSystemCache(root ?: Application.builder("rbcs").build().computeCacheDirectory(), maxAge)
 
-        override fun close() {
-            cache.close()
-        }
+        override fun asyncClose() = cache.asyncClose()
 
-        override fun newHandler() = FileSystemCacheHandler(cache, digestAlgorithm, compressionEnabled, compressionLevel, chunkSize)
+        override fun newHandler(
+            eventLoop: EventLoopGroup,
+            socketChannelFactory: ChannelFactory<SocketChannel>,
+            datagramChannelFactory: ChannelFactory<DatagramChannel>
+        ) = FileSystemCacheHandler(cache, digestAlgorithm, compressionEnabled, compressionLevel, chunkSize)
     }
 
     override fun getNamespaceURI() = RBCS.RBCS_NAMESPACE_URI

rbcs-server/src/main/kotlin/net/woggioni/rbcs/server/cache/FileSystemCacheProvider.kt

@@ -30,7 +30,7 @@ class FileSystemCacheProvider : CacheProvider<FileSystemCacheConfiguration> {
         val compressionLevel = el.renderAttribute("compression-level")
             ?.let(String::toInt)
             ?: Deflater.DEFAULT_COMPRESSION
-        val digestAlgorithm = el.renderAttribute("digest") ?: "MD5"
+        val digestAlgorithm = el.renderAttribute("digest")
         val chunkSize = el.renderAttribute("chunk-size")
             ?.let(Integer::decode)
             ?: 0x10000

rbcs-server/src/main/kotlin/net/woggioni/rbcs/server/cache/InMemoryCache.kt

@@ -1,10 +1,12 @@
 package net.woggioni.rbcs.server.cache
 
 import io.netty.buffer.ByteBuf
+import net.woggioni.rbcs.api.AsyncCloseable
 import net.woggioni.rbcs.api.CacheValueMetadata
 import net.woggioni.rbcs.common.createLogger
 import java.time.Duration
 import java.time.Instant
+import java.util.concurrent.CompletableFuture
 import java.util.concurrent.ConcurrentHashMap
 import java.util.concurrent.PriorityBlockingQueue
 import java.util.concurrent.TimeUnit
@@ -26,7 +28,7 @@ class CacheEntry(
 class InMemoryCache(
     private val maxAge: Duration,
     private val maxSize: Long
-) : AutoCloseable {
+) : AsyncCloseable {
 
     companion object {
         private val log = createLogger<InMemoryCache>()
@@ -45,7 +47,10 @@ class InMemoryCache(
     @Volatile
     private var running = true
 
-    private val garbageCollector = Thread.ofVirtual().name("in-memory-cache-gc").start {
+    private val closeFuture = object : CompletableFuture<Void>() {
+        init {
+            Thread.ofVirtual().name("in-memory-cache-gc").start {
+                try {
                     while (running) {
                         val el = removalQueue.poll(1, TimeUnit.SECONDS) ?: continue
                         val value = el.value
@@ -62,9 +67,15 @@ class InMemoryCache(
                             Thread.sleep(minOf(Duration.between(now, el.expiry), Duration.ofSeconds(1)))
                         }
                     }
+                    complete(null)
+                } catch (ex: Throwable) {
+                    completeExceptionally(ex)
+                }
+            }
+        }
     }
 
-    private fun removeEldest(): Long {
+    fun removeEldest(): Long {
         while (true) {
             val el = removalQueue.take()
             val value = el.value
@@ -84,9 +95,9 @@ class InMemoryCache(
         }
     }
 
-    override fun close() {
+    override fun asyncClose() : CompletableFuture<Void> {
         running = false
-        garbageCollector.join()
+        return closeFuture
     }
 
     fun get(key: ByteArray) = map[CacheKey(key)]?.run {

rbcs-server/src/main/kotlin/net/woggioni/rbcs/server/cache/InMemoryCacheConfiguration.kt

@@ -1,5 +1,10 @@
 package net.woggioni.rbcs.server.cache
 
+import io.netty.channel.ChannelFactory
+import io.netty.channel.EventLoopGroup
+import io.netty.channel.socket.DatagramChannel
+import io.netty.channel.socket.SocketChannel
+import io.netty.util.concurrent.Future
 import net.woggioni.rbcs.api.CacheHandlerFactory
 import net.woggioni.rbcs.api.Configuration
 import net.woggioni.rbcs.common.RBCS
@@ -16,11 +21,13 @@ data class InMemoryCacheConfiguration(
     override fun materialize() = object : CacheHandlerFactory {
         private val cache = InMemoryCache(maxAge, maxSize)
 
-        override fun close() {
-            cache.close()
-        }
+        override fun asyncClose() = cache.asyncClose()
 
-        override fun newHandler() = InMemoryCacheHandler(cache, digestAlgorithm, compressionEnabled, compressionLevel)
+        override fun newHandler(
+            eventLoop: EventLoopGroup,
+            socketChannelFactory: ChannelFactory<SocketChannel>,
+            datagramChannelFactory: ChannelFactory<DatagramChannel>
+        ) = InMemoryCacheHandler(cache, digestAlgorithm, compressionEnabled, compressionLevel)
     }
 
     override fun getNamespaceURI() = RBCS.RBCS_NAMESPACE_URI

rbcs-server/src/main/kotlin/net/woggioni/rbcs/server/cache/InMemoryCacheProvider.kt

@@ -30,7 +30,7 @@ class InMemoryCacheProvider : CacheProvider<InMemoryCacheConfiguration> {
         val compressionLevel = el.renderAttribute("compression-level")
             ?.let(String::toInt)
             ?: Deflater.DEFAULT_COMPRESSION
-        val digestAlgorithm = el.renderAttribute("digest") ?: "MD5"
+        val digestAlgorithm = el.renderAttribute("digest")
         val chunkSize = el.renderAttribute("chunk-size")
             ?.let(Integer::decode)
             ?: 0x10000

rbcs-server/src/main/resources/net/woggioni/rbcs/server/schema/rbcs.xsd

@@ -153,7 +153,7 @@
                         </xs:documentation>
                     </xs:annotation>
                 </xs:attribute>
-                <xs:attribute name="digest" type="xs:token" default="MD5">
+                <xs:attribute name="digest" type="xs:token">
                     <xs:annotation>
                         <xs:documentation>
                             Hashing algorithm to apply to the key. If omitted, no hashing is performed.
@@ -209,7 +209,7 @@
                         </xs:documentation>
                     </xs:annotation>
                 </xs:attribute>
-                <xs:attribute name="digest" type="xs:token" default="MD5">
+                <xs:attribute name="digest" type="xs:token" default="SHA3-224">
                     <xs:annotation>
                         <xs:documentation>
                             Hashing algorithm to apply to the key. If omitted, no hashing is performed.

rbcs-server/src/test/java/net/woggioni/rbcs/server/test/utils/NetworkUtils.java

@@ -1,30 +0,0 @@
-package net.woggioni.rbcs.server.test.utils;
-
-import net.woggioni.jwo.JWO;
-
-import java.io.IOException;
-import java.net.InetAddress;
-import java.net.ServerSocket;
-
-public class NetworkUtils {
-
-    private static final int MAX_ATTEMPTS = 50;
-
-    public static int getFreePort() {
-        int count = 0;
-        while(count < MAX_ATTEMPTS) {
-            try (ServerSocket serverSocket = new ServerSocket(0, 50, InetAddress.getLocalHost())) {
-                final var candidate = serverSocket.getLocalPort();
-                if (candidate > 0) {
-                    return candidate;
-                } else {
-                    JWO.newThrowable(RuntimeException.class, "Got invalid port number: %d", candidate);
-                    throw new RuntimeException("Error trying to find an open port");
-                }
-            } catch (IOException ignored) {
-                ++count;
-            }
-        }
-        throw new RuntimeException("Error trying to find an open port");
-    }
-}

rbcs-server/src/test/kotlin/net/woggioni/rbcs/server/test/AbstractBasicAuthServerTest.kt

@@ -2,10 +2,10 @@ package net.woggioni.rbcs.server.test
 
 import net.woggioni.rbcs.api.Configuration
 import net.woggioni.rbcs.api.Role
+import net.woggioni.rbcs.common.RBCS.getFreePort
 import net.woggioni.rbcs.common.Xml
 import net.woggioni.rbcs.server.cache.FileSystemCacheConfiguration
 import net.woggioni.rbcs.server.configuration.Serializer
-import net.woggioni.rbcs.server.test.utils.NetworkUtils
 import java.net.URI
 import java.net.http.HttpRequest
 import java.nio.charset.StandardCharsets
@@ -33,7 +33,7 @@ abstract class AbstractBasicAuthServerTest : AbstractServerTest() {
         this.cacheDir = testDir.resolve("cache")
         cfg = Configuration.of(
             "127.0.0.1",
-            NetworkUtils.getFreePort(),
+            getFreePort(),
             50,
             serverPath,
             Configuration.EventExecutor(false),

rbcs-server/src/test/kotlin/net/woggioni/rbcs/server/test/AbstractTlsServerTest.kt

@@ -2,12 +2,12 @@ package net.woggioni.rbcs.server.test
 
 import net.woggioni.rbcs.api.Configuration
 import net.woggioni.rbcs.api.Role
+import net.woggioni.rbcs.common.RBCS.getFreePort
 import net.woggioni.rbcs.common.Xml
 import net.woggioni.rbcs.server.cache.FileSystemCacheConfiguration
 import net.woggioni.rbcs.server.configuration.Serializer
 import net.woggioni.rbcs.server.test.utils.CertificateUtils
 import net.woggioni.rbcs.server.test.utils.CertificateUtils.X509Credentials
-import net.woggioni.rbcs.server.test.utils.NetworkUtils
 import org.bouncycastle.asn1.x500.X500Name
 import java.net.URI
 import java.net.http.HttpClient
@@ -138,7 +138,7 @@ abstract class AbstractTlsServerTest : AbstractServerTest() {
         createKeyStoreAndTrustStore()
         cfg = Configuration(
             "127.0.0.1",
-            NetworkUtils.getFreePort(),
+            getFreePort(),
             100,
             serverPath,
             Configuration.EventExecutor(false),

rbcs-server/src/test/kotlin/net/woggioni/rbcs/server/test/NoAuthServerTest.kt

@@ -2,10 +2,10 @@ package net.woggioni.rbcs.server.test
 
 import io.netty.handler.codec.http.HttpResponseStatus
 import net.woggioni.rbcs.api.Configuration
+import net.woggioni.rbcs.common.RBCS.getFreePort
 import net.woggioni.rbcs.common.Xml
 import net.woggioni.rbcs.server.cache.InMemoryCacheConfiguration
 import net.woggioni.rbcs.server.configuration.Serializer
-import net.woggioni.rbcs.server.test.utils.NetworkUtils
 import org.junit.jupiter.api.Assertions
 import org.junit.jupiter.api.Order
 import org.junit.jupiter.api.Test
@@ -33,7 +33,7 @@ class NoAuthServerTest : AbstractServerTest() {
         this.cacheDir = testDir.resolve("cache")
         cfg = Configuration(
             "127.0.0.1",
-            NetworkUtils.getFreePort(),
+            getFreePort(),
             100,
             serverPath,
             Configuration.EventExecutor(false),