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Groovy example source code file (

This example Groovy source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

class, class, exception, exception, file, groovyclassloadertest, groovyobject, groovyobject, io, metaclass, metaclass, testsupport

The Groovy source code

 * Copyright 2003-2011 the original author or authors.
 * 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.codehaus.groovy.classgen;

import groovy.lang.GroovyObject;
import groovy.lang.MetaClass;


 * Tests dynamically compiling a new class
 * @author <a href="">James Strachan
 * @version $Revision: 21496 $
public class GroovyClassLoaderTest extends TestSupport {

    public void testCompile() throws Exception {
        Class groovyClass = loader.parseClass(new File("src/test/org/codehaus/groovy/classgen/Main.groovy"));

        System.out.println("Invoking main...");

        GroovyObject object = (GroovyObject) groovyClass.newInstance();

        assertTrue(object != null);

        MetaClass metaClass = object.getMetaClass();
        System.out.println("Metaclass: " + metaClass);

        Class type = object.getClass();
        System.out.println("Type: " + type);

        // invoke via metaclass
        metaClass.invokeMethod(object, "main", null);

        // invoke directly
        object.invokeMethod("main", null);

Other Groovy examples (source code examples)

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