diff --git a/benchmark/build.gradle b/benchmark/build.gradle
index 78965f6..3581a2f 100644
--- a/benchmark/build.gradle
+++ b/benchmark/build.gradle
@@ -1,3 +1,4 @@
+import net.woggioni.gradle.graalvm.NativeImageConfigurationTask
 import net.woggioni.gradle.graalvm.NativeImageTask
 import net.woggioni.gradle.graalvm.NativeImagePlugin
 
@@ -16,8 +17,17 @@ dependencies {
     implementation project(':')
 }
 
-nativeImage {
-    mainClass = 'net.woggioni.jwo.benchmark.Main'
+Property<String> mainModuleName = objects.property(String.class)
+mainModuleName.set('net.woggioni.jwo')
+Property<String> mainClassName = objects.property(String.class)
+mainClassName.set('net.woggioni.jwo.benchmark.Main')
+
+tasks.named(NativeImagePlugin.CONFIGURE_NATIVE_IMAGE_TASK_NAME, NativeImageConfigurationTask) {
+    mainClass = mainClassName
+}
+
+tasks.named(NativeImagePlugin.NATIVE_IMAGE_TASK_NAME, NativeImageTask) {
     useMusl = true
     buildStaticImage = true
+    mainClass = mainClassName
 }
diff --git a/build.gradle b/build.gradle
index 0a20713..b13c824 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,7 +2,6 @@ plugins {
     id 'java-library'
     id 'maven-publish'
     id 'jacoco'
-    alias(catalog.plugins.multi.release.jar)
     alias(catalog.plugins.lombok)
     alias(catalog.plugins.sambal)
 }
@@ -24,6 +23,7 @@ allprojects {
                 languageVersion = JavaLanguageVersion.of(21)
                 vendor = JvmVendorSpec.ORACLE
             }
+            modularity.inferModulePath = true
         }
 
         dependencies {
@@ -63,7 +63,6 @@ allprojects {
 
         pluginManager.withPlugin('java-library') {
             java {
-                withJavadocJar()
                 withSourcesJar()
             }
         }
@@ -115,7 +114,7 @@ dependencies {
 }
 
 compileJava {
-    options.release = 8
+    options.release = 11
     options.compilerArgs << '-parameters'
 }
 
diff --git a/gradle.properties b/gradle.properties
index 6bdcb7a..7babd6e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,6 +3,6 @@ org.gradle.parallel=true
 org.gradle.caching=true
 
 gitea.maven.url = https://gitea.woggioni.net/api/packages/woggioni/maven
-jwo.version = 2025.02.25
-lys.version = 2025.02.25
+jwo.version = 2025.04.19
+lys.version = 2025.04.16
 guice.version = 5.0.1
diff --git a/jmath-benchmark/build.gradle b/jmath-benchmark/build.gradle
index 91e6a4a..dd18e9e 100644
--- a/jmath-benchmark/build.gradle
+++ b/jmath-benchmark/build.gradle
@@ -1,5 +1,6 @@
 import net.woggioni.gradle.graalvm.NativeImagePlugin
 import net.woggioni.gradle.graalvm.NativeImageTask
+import net.woggioni.gradle.graalvm.NativeImageConfigurationTask
 
 plugins {
     id 'java-library'
@@ -16,13 +17,17 @@ dependencies {
     implementation project(':jmath')
 }
 
-nativeImage {
-    mainClass = 'net.woggioni.jmath.benchmark.Main'
-    useMusl = true
-    buildStaticImage = true
-}
+Property<String> mainClassName = objects.property(String.class)
+mainClassName.set('net.woggioni.jmath.benchmark.Main')
 
-configureNativeImage {
+
+tasks.named(NativeImagePlugin.CONFIGURE_NATIVE_IMAGE_TASK_NAME, NativeImageConfigurationTask) {
+    mainClass = mainClassName
     args('20')
 }
 
+tasks.named(NativeImagePlugin.NATIVE_IMAGE_TASK_NAME, NativeImageTask) {
+    useMusl = true
+    buildStaticImage = true
+    mainClass = mainClassName
+}
diff --git a/src/main/java9/module-info.java b/src/main/java/module-info.java
similarity index 100%
rename from src/main/java9/module-info.java
rename to src/main/java/module-info.java
diff --git a/src/main/java/net/woggioni/jwo/Hash.java b/src/main/java/net/woggioni/jwo/Hash.java
index 0e48cb0..85cf7b1 100644
--- a/src/main/java/net/woggioni/jwo/Hash.java
+++ b/src/main/java/net/woggioni/jwo/Hash.java
@@ -90,7 +90,36 @@ public class Hash {
         return new String(hexChars);
     }
 
+    private static int charToInt(char c) {
+        if (c >= '0' && c <= '9') {
+            return c - '0';
+        } else if(c >= 'a' && c <= 'f') {
+            return 10 + c - 'a';
+        } else if(c >= 'A' && c <= 'F') {
+            return 10 + c - 'A';
+        } else {
+            throw newThrowable(IllegalArgumentException.class, "Illegal hex character '%c'", c);
+        }
+    }
+
     public static byte[] hexToBytes(String hexString) {
+        if (hexString.length() % 2 != 0) {
+            throw newThrowable(IllegalArgumentException.class, "Hex string length must be even," +
+                    " string has length '%d' instead", hexString.length());
+        }
+        byte[] result = new byte[hexString.length() / 2];
+        for(int i = 0; i < hexString.length(); i++) {
+            int value = charToInt(hexString.charAt(i));
+            if (i % 2 == 0) {
+                result[i / 2] += (byte) (value << 4);
+            } else {
+                result[i / 2] += (byte) value;
+            }
+        }
+        return result;
+    }
+
+    public static byte[] hexToBytes2(String hexString) {
         ByteArrayOutputStream baos = new ByteArrayOutputStream();
         if (hexString.length() % 2 != 0) {
             throw newThrowable(IllegalArgumentException.class, "Hex string length must be even," +
diff --git a/src/main/java/net/woggioni/jwo/JWO.java b/src/main/java/net/woggioni/jwo/JWO.java
index de0a407..09ef869 100644
--- a/src/main/java/net/woggioni/jwo/JWO.java
+++ b/src/main/java/net/woggioni/jwo/JWO.java
@@ -237,6 +237,10 @@ public class JWO {
         return Hash.bytesToHex(bytes);
     }
 
+    public static byte[] hexToBytes(String hexStr) {
+        return Hash.hexToBytes(hexStr);
+    }
+
     @SneakyThrows
     public static void deletePath(Path path) {
         Files.walk(path)
diff --git a/src/main/java9/net/woggioni/jwo/url/jpms/Handler.java b/src/main/java/net/woggioni/jwo/url/jpms/Handler.java
similarity index 100%
rename from src/main/java9/net/woggioni/jwo/url/jpms/Handler.java
rename to src/main/java/net/woggioni/jwo/url/jpms/Handler.java
diff --git a/src/test/java/net/woggioni/jwo/HashTest.java b/src/test/java/net/woggioni/jwo/HashTest.java
index f0fd53b..239856c 100644
--- a/src/test/java/net/woggioni/jwo/HashTest.java
+++ b/src/test/java/net/woggioni/jwo/HashTest.java
@@ -65,6 +65,7 @@ public class HashTest {
             );
         }
     }
+
     @ArgumentsSource(HexTestArguments.class)
     @ParameterizedTest
     public void hexTest(String sourceString, Class<? extends Throwable> t) {
@@ -78,4 +79,18 @@ public class HashTest {
             Assertions.assertEquals(sourceString.toUpperCase(), Hash.bytesToHex(bytes));
         }
     }
+
+    @ArgumentsSource(HexTestArguments.class)
+    @ParameterizedTest
+    public void hexTest2(String sourceString, Class<? extends Throwable> t) {
+        if(t != null) {
+            Assertions.assertThrows(t, () ->
+                    Hash.hexToBytes2(sourceString)
+            );
+        } else {
+            byte[] bytes = Hash.hexToBytes2(sourceString);
+            Assertions.assertEquals(sourceString.length() / 2, bytes.length);
+            Assertions.assertEquals(sourceString.toUpperCase(), Hash.bytesToHex(bytes));
+        }
+    }
 }
diff --git a/src/test/java/net/woggioni/jwo/JavaVersionTest.java b/src/test/java/net/woggioni/jwo/JavaVersionTest.java
index 9f99b30..d3d3a91 100644
--- a/src/test/java/net/woggioni/jwo/JavaVersionTest.java
+++ b/src/test/java/net/woggioni/jwo/JavaVersionTest.java
@@ -82,7 +82,7 @@ public class JavaVersionTest {
                 JWO.copy(is, baos);
             }
             final var jwoClassVersion = JavaVersion.forClass(baos.toByteArray());
-            assertEquals(JavaVersion.VERSION_1_8, jwoClassVersion);
+            assertEquals(JavaVersion.VERSION_11, jwoClassVersion);
         }
     }
 }