/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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 org.apache.lucene.util; import java.net.URL; import java.net.URLClassLoader; public class TestSPIClassIterator extends LuceneTestCase { public void testParentChild() throws Exception { final ClassLoader parent = getClass().getClassLoader(); final ClassLoader child = URLClassLoader.newInstance(new URL[0], parent); assertTrue(checkNoPerms(parent, parent)); assertTrue(checkNoPerms(child, child)); assertTrue(checkNoPerms(parent, child)); assertFalse(checkNoPerms(child, parent)); } private boolean checkNoPerms(ClassLoader parent, ClassLoader child) throws Exception { return runWithRestrictedPermissions(() -> SPIClassIterator.isParentClassLoader(parent, child)); } }