Test case file 1: TestWebappClassLoader class.

TestWebappClassLoader.java (text/plain), 5.41 KB, created by Konstantin Kolinko on 2009-01-01 21:59:39 UTC

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Description: Test case file 1: TestWebappClassLoader class.

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Creator: Konstantin Kolinko

Created: 2009-01-01 21:59:39 UTC

Size: 5.41 KB

patch

obsolete

>/* > * 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.catalina.loader; > >import java.io.File; >import java.net.URL; >import java.net.URLClassLoader; >import java.security.Permission; >import java.util.jar.JarFile; > >import org.apache.naming.resources.FileDirContext; > >import junit.framework.TestCase; > >public class TestWebappClassLoader extends TestCase { > > /** > * A runnable thread that calls a method of WebappClassLoader. > */ > private static class FindClassThread extends Thread { > private WebappClassLoader loader; > private String className; > public Class<?> result; > public Throwable exception; > > public FindClassThread(WebappClassLoader loader, String className) { > this.loader = loader; > this.className = className; > } > > @Override > public void run() { > try { > result = loader.findClass(className); > } catch (Throwable th) { > this.exception = th; > } > } > } > > /** > * Tests race condition in {@link WebappClassLoader#findClass()} method. > * > * @see bug 37458 > */ > public void testFindClassWithSecurityManager() throws Throwable { > // Find, where the compiled classes are > URL classesURL = ((URLClassLoader) WebappClassLoader.class > .getClassLoader()).getURLs()[0]; > > File classesPath = new File(classesURL.getPath()); > > // The class that we will try loading is sealed.Sealed > // from sealed.jar > final String className = "sealed.Sealed"; > > // The sealed.jar is a resource that comes along with this class > File sealedJarPath = new File(classesPath, this.getClass().getPackage() > .getName().replace('.', '/') > + "/sealed.jar"); > > boolean smWasSet = false; > SecurityManager oldSm = System.getSecurityManager(); > if (oldSm == null) { > System.setSecurityManager(new SecurityManager() { > > @Override > public void checkPermission(Permission perm, Object context) { > } > > @Override > public void checkPermission(Permission perm) { > } > > }); > smWasSet = true; > } > > boolean throwableWasCaught = false; > try { > > WebappClassLoader loader = new WebappClassLoader(); > > FileDirContext ctx = new FileDirContext(); > ctx.setDocBase(sealedJarPath.getParent().toString()); > loader.setResources(ctx); > > loader.addJar("sealed.jar", new JarFile(sealedJarPath), sealedJarPath); > > loader.start(); > > FindClassThread th1 = new FindClassThread(loader, className); > FindClassThread th2 = new FindClassThread(loader, className); > > th1.start(); > th2.start(); > > th1.join(); > th2.join(); > > if (th1.exception != null) { > throw new RuntimeException("Attempt 1 resulted in exception", > th1.exception); > } > if (th2.exception != null) { > throw new RuntimeException("Attempt 2 resulted in exception", > th2.exception); > } > assertNotNull("Result 1 was null", th1.result); > assertNotNull("Result 2 was null", th2.result); > assertEquals(th1.result, th2.result); > > } catch (Throwable th) { > throwableWasCaught = true; > throw th; > } finally { > if (smWasSet) { > try { > System.setSecurityManager(oldSm); > } catch (RuntimeException ex) { > RuntimeException ex2 = new RuntimeException( > "Failed to restore SecurityManager", ex); > if (!throwableWasCaught) { > throw ex2; > } > // something more serious happened, let's just print out > ex2.printStackTrace(); > } > } > } > } > > /** > * Iterate the test nnn times. > * > * @throws Throwable > */ > public void testFindClassWithSecurityManager100() throws Throwable { > for (int i = 0; i < 100; i++) { > try { > testFindClassWithSecurityManager(); > } catch (Throwable th) { > System.err.println("Iteration " + i + " resulted in failure:"); > th.printStackTrace(); > throw th; > } > } > } >} View Attachment As Raw

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