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Groovy example source code file (OverloadInvokeMethodTest.groovy)

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

Java - Groovy tags/keywords

groovytestcase, groovytestcase, missingmethodexception, missingmethodexception, object, object, overloadinvokemethodtest, overloadinvokemethodtest

The Groovy OverloadInvokeMethodTest.groovy source code

package groovy

 * @version $Revision: 1.4 $
class OverloadInvokeMethodTest extends GroovyTestCase {
    void testBug() {
        def value = foo(123)
        assert value == 246

     * Lets overload the invokeMethod() mechanism to provide an alias
     * to an existing method
    def invokeMethod(String name, Object args) {
        try {
            return metaClass.invokeMethod(this, name, args)
        catch (MissingMethodException e) {
            if (name == 'foo') {
                return metaClass.invokeMethod(this, 'bar', args)
            else {
                throw e
    def bar(param) {
        return param * 2


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