diff --git a/.classpath b/.classpath
index 13e21d2..751b426 100644
--- a/.classpath
+++ b/.classpath
@@ -14,7 +14,14 @@
 			<attribute name="test" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8/"/>
+	<classpathentry kind="src" output="bin/test" path="test11">
+		<attributes>
+			<attribute name="gradle_scope" value="test"/>
+			<attribute name="gradle_used_by_scope" value="test"/>
+			<attribute name="test" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11/"/>
 	<classpathentry kind="con" path="org.eclipse.buildship.core.gradleclasspathcontainer"/>
 	<classpathentry kind="output" path="bin/default"/>
 </classpath>
diff --git a/.github/workflows/build11.yml b/.github/workflows/build11.yml
new file mode 100644
index 0000000..f7e2fe7
--- /dev/null
+++ b/.github/workflows/build11.yml
@@ -0,0 +1,17 @@
+name: Build with Java 11
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up JDK 11
+      uses: actions/setup-java@v3
+      with:
+        java-version: '11'
+        distribution: 'temurin'
+    - name: Build with Gradle
+      run: gradle build --stacktrace
diff --git a/.github/workflows/build.yml b/.github/workflows/build8.yml
similarity index 83%
rename from .github/workflows/build.yml
rename to .github/workflows/build8.yml
index b5dfb5e..e12c0a4 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build8.yml
@@ -1,4 +1,4 @@
-name: build
+name: Build with Java 8
 
 on: [push, pull_request]
 
@@ -12,6 +12,6 @@ jobs:
       uses: actions/setup-java@v3
       with:
         java-version: '8'
-        distribution: 'adopt'
+        distribution: 'temurin'
     - name: Build with Gradle
       run: gradle build --stacktrace
diff --git a/build.gradle b/build.gradle
index b23bf78..0fa58a3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,12 @@ plugins {
     id 'com.github.kt3k.coveralls' version '2.11.0' // Coverage
 }
 
+def majorJavaVersion = JavaVersion.current().getMajorVersion() as int
+if( majorJavaVersion < 11 ) {
     sourceCompatibility = 1.8
+} else {
+    sourceCompatibility = 11
+}
 
 group 'de.inetsoftware'
 archivesBaseName = 'jwebassembly-compiler'
@@ -43,6 +48,9 @@ sourceSets {
     test {
         java {
             srcDir 'test'
+            if( majorJavaVersion >= 11 ) {
+                srcDir 'test11'
+            }
         }
         resources {
             srcDir 'test'
diff --git a/test11/de/inetsoftware/jwebassembly/runtime/VarHandleTest.java b/test11/de/inetsoftware/jwebassembly/runtime/VarHandleTest.java
new file mode 100644
index 0000000..2fcd501
--- /dev/null
+++ b/test11/de/inetsoftware/jwebassembly/runtime/VarHandleTest.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2023 Volker Berlin (i-net software)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package de.inetsoftware.jwebassembly.runtime;
+
+
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.VarHandle;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.logging.Level;
+
+import org.junit.ClassRule;
+import org.junit.runners.Parameterized.Parameters;
+
+import de.inetsoftware.jwebassembly.JWebAssembly;
+import de.inetsoftware.jwebassembly.ScriptEngine;
+import de.inetsoftware.jwebassembly.WasmRule;
+import de.inetsoftware.jwebassembly.api.annotation.Export;
+import de.inetsoftware.jwebassembly.web.DOMString;
+import de.inetsoftware.jwebassembly.web.JSObject;
+
+/**
+ * @author Volker Berlin
+ */
+public class VarHandleTest extends AbstractBaseTest {
+
+    @ClassRule
+    public static WasmRule rule = new WasmRule( TestClass.class );
+
+    public VarHandleTest( ScriptEngine script, String method, Object[] params ) {
+        super( rule, script, method, params );
+    }
+
+    @Parameters( name = "{0}-{1}" )
+    public static Collection<Object[]> data() {
+        ArrayList<Object[]> list = new ArrayList<>();
+        for( ScriptEngine script : ScriptEngine.testEngines() ) {
+            addParam( list, script, "set" );
+        }
+        rule.setTestParameters( list );
+        JWebAssembly.LOGGER.setLevel( Level.FINE );
+        rule.setProperty( JWebAssembly.IGNORE_NATIVE, "true" );
+
+        return list;
+    }
+
+    static class TestClass {
+
+        private static final VarHandle STR;
+        static {
+            try {
+                MethodHandles.Lookup l = MethodHandles.lookup();
+                STR = l.findVarHandle(TestData.class, "str", String.class);
+            } catch (ReflectiveOperationException e) {
+                throw new ExceptionInInitializerError(e);
+            }
+        }
+
+        @Export
+        static DOMString set() {
+            TestData data = new TestData();
+            STR.set( data, "abc" );
+            return JSObject.domString( data.str );
+        }
+    }
+
+    static class TestData {
+        String str;
+    }
+}