Groovy example source code file (Groovy4241Bug.groovy)

This example Groovy source code file (Groovy4241Bug.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

bar4241, bar4241, foo4241, foo4241, groovy4241bug, groovytestcase, npe, npe, string, string

The Groovy Groovy4241Bug.groovy source code

/*
 * Copyright 2003-2010 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
 *
 *     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 groovy.bugs

class Groovy4241Bug extends GroovyTestCase {
    void testAsTypeWithinvokeMethodOverridden() {
        Foo4241.metaClass.invokeMethod = { String name, args ->
            println name
            for (arg in args) {
                println arg.getClass()
            }
        }
        def f = new Foo4241()
        
        def bar = [key: 'foo'] as Bar4241
        f.echo(bar) // this used to work
        
        f.echo([key: 'foo'] as Bar4241) // this used to fail with NPE
    }
}

class Foo4241 {}

class Bar4241 {}