added Graal native image build for the server

gbcs-native/src/main/java/net/woggioni/gbcs/graal/ConfigureNativeServer.java

@@ -0,0 +1,10 @@
+package net.woggioni.gbcs.graal;
+
+import java.time.Duration;
+
+public class ConfigureNativeServer {
+
+    public static void main(String[] args) throws Exception {
+        NativeServer.run(Duration.ofSeconds(60));
+    }
+}

gbcs-native/src/main/java/net/woggioni/gbcs/graal/NativeServer.java

@@ -0,0 +1,45 @@
+package net.woggioni.gbcs.graal;
+
+import net.woggioni.gbcs.server.GradleBuildCacheServer;
+import net.woggioni.jwo.Application;
+
+import java.nio.file.Path;
+import java.time.Duration;
+
+public class NativeServer {
+
+    private static Path findConfigurationFile(Application app, String fileName) {
+        final var confDir = app.computeConfigurationDirectory();
+        final var  configurationFile = confDir.resolve(fileName);
+        return configurationFile;
+    }
+
+    static void run(Duration timeout) throws Exception {
+        final var app = Application.builder("gbcs")
+                .configurationDirectoryEnvVar("GBCS_CONFIGURATION_DIR")
+                .configurationDirectoryPropertyKey("net.woggioni.gbcs.conf.dir")
+                .build();
+
+        final var configurationFile = findConfigurationFile(app, "gbcs-server.xml");
+        final var cfg = GradleBuildCacheServer.Companion.loadConfiguration(configurationFile);
+        try(final var handle = new GradleBuildCacheServer(cfg).run()) {
+            if(timeout != null) {
+                Thread.sleep(timeout);
+                handle.shutdown();
+            }
+        }
+    }
+
+    private static void setPropertyIfNotPresent(String key, String value) {
+        final var previousValue = System.getProperty(key);
+        if(previousValue == null) {
+            System.setProperty(key, value);
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        setPropertyIfNotPresent("logback.configurationFile", "net/woggioni/gbcs/graal/logback.xml");
+        setPropertyIfNotPresent("io.netty.leakDetectionLevel", "DISABLED");
+        run(null);
+    }
+}

gbcs-native/src/main/resources/net/woggioni/gbcs/graal/logback.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE configuration>
+
+<configuration>
+    <import class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"/>
+    <import class="ch.qos.logback.core.ConsoleAppender"/>
+
+    <appender name="console" class="ConsoleAppender">
+        <target>System.err</target>
+        <encoder class="PatternLayoutEncoder">
+            <pattern>%d [%highlight(%-5level)] \(%thread\) %logger{36} -%kvp- %msg %n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="info">
+        <appender-ref ref="console"/>
+    </root>
+</configuration>