| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * 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 com.intellij.ide; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Modifier; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| public class ClassUtilCore { |
| public static void clearJarURLCache() { |
| try { |
| Class jarFileFactory = Class.forName("sun.net.www.protocol.jar.JarFileFactory"); |
| |
| clearMap(jarFileFactory.getDeclaredField("fileCache")); |
| clearMap(jarFileFactory.getDeclaredField("urlCache")); |
| } |
| catch (Exception ignore) { |
| // Do nothing. |
| } |
| } |
| |
| private static void clearMap(Field cache) throws IllegalAccessException { |
| cache.setAccessible(true); |
| if ((cache.getModifiers() & Modifier.FINAL) == 0) { |
| cache.set(null, new HashMap()); |
| } |
| else { |
| Map map = (Map)cache.get(null); |
| map.clear(); |
| } |
| } |
| |
| @SuppressWarnings({"HardCodedStringLiteral"}) |
| public static boolean isLoadingOfExternalPluginsDisabled() { |
| return !"true".equalsIgnoreCase(System.getProperty("idea.plugins.load", "true")); |
| } |
| } |