| package org.codehaus.surefire; |
| |
| /* |
| * Copyright 2001-2005 The Codehaus. |
| * |
| * 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. |
| */ |
| |
| import java.net.URLClassLoader; |
| import java.net.URL; |
| import java.util.Map; |
| import java.util.HashMap; |
| import java.util.Set; |
| import java.util.HashSet; |
| |
| public class IsolatedClassLoader |
| extends URLClassLoader |
| { |
| private ClassLoader parent = ClassLoader.getSystemClassLoader(); |
| |
| private Set urls = new HashSet(); |
| |
| public IsolatedClassLoader() |
| { |
| super( new URL[0], null ); |
| } |
| |
| public void addURL( URL url ) |
| { |
| if ( !urls.contains( url ) ) |
| { |
| super.addURL( url ); |
| } |
| else |
| { |
| urls.add( url ); |
| } |
| } |
| |
| public synchronized Class loadClass( String className ) |
| throws ClassNotFoundException |
| { |
| Class c = findLoadedClass( className ); |
| |
| ClassNotFoundException ex = null; |
| |
| if ( c == null ) |
| { |
| try |
| { |
| c = findClass( className ); |
| } |
| catch ( ClassNotFoundException e ) |
| { |
| ex = e; |
| |
| if ( parent != null ) |
| { |
| c = parent.loadClass( className ); |
| } |
| } |
| } |
| |
| if ( c == null ) |
| { |
| throw ex; |
| } |
| |
| return c; |
| } |
| } |