/**
*
* Copyright 2003-2004 The Apache Software Foundation
*
* 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 org.apache.geronimo.jetty;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import junit.framework.TestCase;
import org.apache.geronimo.kernel.config.MultiParentClassLoader;
import org.apache.geronimo.kernel.repository.Artifact;
/**
* Tests loading various classes (as classes and URL resources) with different
* settings for contextPriorityClassLoader to make sure the restrictions on
* javax.* class loading are honored.
*
* @version $Rev: 381933 $ $Date: 2006-03-01 01:54:40 -0500 (Wed, 01 Mar 2006) $
*/
public class ClassLoaderTest extends TestCase {
Artifact configId = new Artifact("foo", "bar", "1", "car");
ClassLoader cl;
URL[] urls;
private static final String[] HIDDEN = {"org.apache.geronimo", "org.mortbay", "org.xml", "org.w3c"};
private static final String[] NON_OVERRIDABLE = {"java.", "javax."};
public void setUp() throws Exception {
super.setUp();
URL url = new File("src/test-resources/deployables/cltest/").toURL();
// URL url = getClass().getClassLoader().getResource("deployables/cltest/");
System.err.println("URL: " + url);
urls = new URL[]{url};
}
//todo: try more restricted prefixed besides javax.*
/**
* Tries to load a javax.* class that's not available from the
* parent ClassLoader. This should work.
*/
public void testFalseNonexistantJavaxClass() {
cl = new MultiParentClassLoader(configId, urls, getClass().getClassLoader(), false, HIDDEN, NON_OVERRIDABLE);
try {
cl.loadClass("javax.foo.Foo");
} catch(ClassNotFoundException e) {
fail("Should be able to load a javax.* class that is not defined by my parent CL");
}
}
/**
* Tries to load a javax.* class that's not available from the
* parent ClassLoader. This should work.
*/
public void testTrueNonexistantJavaxClass() {
cl = new MultiParentClassLoader(configId, urls, getClass().getClassLoader(), true, HIDDEN, NON_OVERRIDABLE);
try {
cl.loadClass("javax.foo.Foo");
} catch(ClassNotFoundException e) {
fail("Should be able to load a javax.* class that is not defined by my parent CL");
}
}
/**
* Tries to load a javax.* class that is avialable from the parent ClassLoader,
* when there's a different definition available from this ClassLoader too.
* This should always load the parent's copy.
*/
public void testFalseExistantJavaxClass() {
cl = new MultiParentClassLoader(configId, urls, getClass().getClassLoader(), false, HIDDEN, NON_OVERRIDABLE);
try {
Class cls = cl.loadClass("javax.servlet.Servlet");
assertTrue("Loaded wrong class first; expected to find parent CL's copy of javax.servlet.Servlet",cls.getDeclaredMethods().length > 0);
} catch(ClassNotFoundException e) {
fail("Problem with test; expecting to have javax.servlet.* on the ClassPath");
}
}
/**
* Tries to load a javax.* class that is avialable from the parent ClassLoader,
* when there's a different definition available from this ClassLoader too.
* This should always load the parent's copy.
*/
public void testTrueExistantJavaxClass() {
cl = new MultiParentClassLoader(configId, urls, getClass().getClassLoader(), true, HIDDEN, NON_OVERRIDABLE);
try {
Class cls = cl.loadClass("javax.servlet.Servlet");
assertTrue("Loaded wrong class first; expected to find parent CL's copy of javax.servlet.Servlet",cls.getDeclaredMethods().length > 0);
} catch(ClassNotFoundException e) {
fail("Problem with test; expecting to have javax.servlet.* on the ClassPath");
}
}
/**
* Tries to load a non-javax.* class that is aailable form the parent
* ClassLoader, when there's a different definition available from this
* ClassLoader. This should load the parent's copy when
* contextPriorityClassLoader is set to false (as here) and the child's
* copy when the contextPriorityClassLoader is set to true.
*/
public void testFalseExistantNonJavaxClass() {
cl = new MultiParentClassLoader(configId, urls, getClass().getClassLoader(), false, HIDDEN, NON_OVERRIDABLE);
try {
Class cls = cl.loadClass("mx4j.MBeanDescription");
assertTrue("Should not have overriden parent CL definition of class mx4j.MBeanDescription", cls.getDeclaredMethods().length > 0);
} catch(ClassNotFoundException e) {
fail("Problem with test; expecting to have mx4j.* on the ClassPath");
}
}
/**
* Tries to load a non-javax.* class that is aailable form the parent
* ClassLoader, when there's a different definition available from this
* ClassLoader. This should load the parent's copy when
* contextPriorityClassLoader is set to false and the child's copy when
* the contextPriorityClassLoader is set to true (as here).
*/
public void testTrueExistantNonJavaxClass() {
cl = new MultiParentClassLoader(configId, urls, getClass().getClassLoader(), true, HIDDEN, NON_OVERRIDABLE);
try {
Class cls = cl.loadClass("mx4j.MBeanDescription");
assertTrue("Should be able to override a class that is not in java.*, javax.*, etc.", cls.getDeclaredMethods().length == 0);
} catch(ClassNotFoundException e) {
fail("Problem with test; expecting to have mx4j.* on the ClassPath");
}
}
/**
* Tries to load a javax.* class that's not available from the
* parent ClassLoader. This should work.
*/
public void testFalseNonexistantJavaxResource() {
cl = new MultiParentClassLoader(configId, urls, getClass().getClassLoader(), false, HIDDEN, NON_OVERRIDABLE);
URL url = cl.getResource("javax/foo/Foo.class");
if(url == null) {
fail("Should be able to load a javax.* class that is not defined by my parent CL");
}
assertEquals(url.getProtocol(), "file");
}
/**
* Tries to load a javax.* class that's not available from the
* parent ClassLoader. This should work.
*/
public void testTrueNonexistantJavaxResource() {
cl = new MultiParentClassLoader(configId, urls, getClass().getClassLoader(), true, HIDDEN, NON_OVERRIDABLE);
URL url = cl.getResource("javax/foo/Foo.class");
if(url == null) {
fail("Should be able to load a javax.* class that is not defined by my parent CL");
}
assertEquals(url.getProtocol(), "file");
}
/**
* Tries to load a javax.* class that is avialable from the parent ClassLoader,
* when there's a different definition available from this ClassLoader too.
* This should always load the parent's copy.
*/
public void testFalseExistantJavaxResource() {
cl = new MultiParentClassLoader(configId, urls, getClass().getClassLoader(), false, HIDDEN, NON_OVERRIDABLE);
URL url = cl.getResource("javax/servlet/Servlet.class");
if(url == null) {
fail("Problem with test; expecting to have javax.servlet.* on the ClassPath");
}
assertEquals("Loaded wrong class first; expected to find parent CL's copy of javax.servlet.Servlet", url.getProtocol(), "jar");
}
/**
* Tries to load a javax.* class that is avialable from the parent ClassLoader,
* when there's a different definition available from this ClassLoader too.
* This should always load the parent's copy.
*/
public void testTrueExistantJavaxResource() {
cl = new MultiParentClassLoader(configId, urls, getClass().getClassLoader(), true, HIDDEN, NON_OVERRIDABLE);
URL url = cl.getResource("javax/servlet/Servlet.class");
if(url == null) {
fail("Problem with test; expecting to have javax.servlet.* on the ClassPath");
}
assertEquals("Loaded wrong class first; expected to find parent CL's copy of javax.servlet.Servlet",url.getProtocol(),"jar");
}
/**
* Tries to load a non-javax.* class that is aailable form the parent
* ClassLoader, when there's a different definition available from this
* ClassLoader. This should load the parent's copy when
* contextPriorityClassLoader is set to false (as here) and the child's
* copy when the contextPriorityClassLoader is set to true.
*/
public void testFalseExistantNonJavaxResource() {
cl = new MultiParentClassLoader(configId, urls, getClass().getClassLoader(), false, HIDDEN, NON_OVERRIDABLE);
URL url = cl.getResource("mx4j/MBeanDescription.class");
if(url == null) {
fail("Problem with test; expecting to have mx4j.* on the ClassPath");
}
assertEquals("Should not have overriden parent CL definition of class mx4j.MBeanDescription", url.getProtocol(), "jar");
}
/**
* Tries to load a non-javax.* class that is aailable form the parent
* ClassLoader, when there's a different definition available from this
* ClassLoader. This should load the parent's copy when
* contextPriorityClassLoader is set to false and the child's copy when
* the contextPriorityClassLoader is set to true (as here).
*/
public void testTrueExistantNonJavaxResource() {
cl = new MultiParentClassLoader(configId, urls, getClass().getClassLoader(), true, new String[] {}, NON_OVERRIDABLE);
URL url = cl.getResource("mx4j/MBeanDescription.class");
if(url == null) {
fail("Problem with test; expecting to have mx4j.* on the ClassPath");
}
assertEquals("Should be able to override a class that is not in java.*, javax.*, etc.", url.getProtocol(), "file");
}
}