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Groovy example source code file (Groovy3339Bug.groovy)

This example Groovy source code file (Groovy3339Bug.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

groovy3339bug, groovy3339bug, groovytestcase, groovytestcase

The Groovy Groovy3339Bug.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,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package groovy.bugs

class Groovy3339Bug extends GroovyTestCase {
    void testConstantCachingInClosureClasses() {
        // In all the cases below, the OptimizerVisitor replaces number 10 by
        // the cached constant in the closure class, which it is not supposed
        // to do as the current implementation does not add synthetic fields
        // for constant caching in closure classes. So the closure invocation currently
        // fails in these cases with errors like "java.lang.NoSuchFieldError: $const$0"
        for (myVal in evaluate('[10,11,12]', 2, 'foo') { [10, 11, 12] }) {
            println myVal

        while (evaluate2({10})) {
            // do nothing

        synchronized (evaluate({10})) {
            // do nothing

    def evaluate(closure) {
        def res = closure.call()
        assert res == 10
        return res

    def evaluate(text, num, thing, closure) {

    def evaluate2(closure) {
        def res = closure.call()
        assert res == 10
        return null

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