Example usage for org.apache.commons.javaflow.utils ContinuationClassLoader defineClassFromData

Introduction

In this page you can find the example usage for org.apache.commons.javaflow.utils ContinuationClassLoader defineClassFromData.

Prototype

public Class<?> defineClassFromData(final byte[] classData, final String classname) 

Source Link

Document

Define a class given its bytes

Usage

From source file:org.apache.commons.javaflow.examples.invokedynamic.DynamicInvokerExample.java

private static Class<Runnable> generateDynamicInvokerClass(final String dynamicInvokerClassName) {
    AbstractDynamicInvokerGenerator generator = new AbstractDynamicInvokerGenerator() {
        @Override// w w  w . j  ava2  s .  c om
        protected int addMethodParameters(final MethodVisitor mv) {
            return 0;
        }
    };

    byte[] dynamicClassBytes = generator.generateInvokeDynamicRunnable(dynamicInvokerClassName,
            Type.getType(SimpleDynamicLinkage.class).getInternalName(), "bootstrapDynamic", "()V");

    @SuppressWarnings("resource")
    ContinuationClassLoader delegateClassLoader = new ContinuationClassLoader(new URL[] {},
            DynamicInvokerExample.class.getClassLoader(), new Asm5ResourceTransformationFactory());

    @SuppressWarnings("unchecked")
    Class<Runnable> dynamicClass = (Class<Runnable>) delegateClassLoader.defineClassFromData(dynamicClassBytes,
            dynamicInvokerClassName);
    return dynamicClass;
}

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