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/*
* Copyright 2000-2009 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.
*/
/*
* @author max
*/
package com.intellij.openapi.application;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;
public class CachedSingletonsRegistry {
private static final Object LOCK = new CachedSingletonsRegistry();
private static final List<Class<?>> ourRegisteredClasses = new ArrayList<Class<?>>();
private CachedSingletonsRegistry() {}
@Nullable
public static <T> T markCachedField(@NotNull Class<T> klass) {
synchronized (LOCK) {
ourRegisteredClasses.add(klass);
}
return null;
}
public static void cleanupCachedFields() {
synchronized (LOCK) {
for (Class<?> aClass : ourRegisteredClasses) {
try {
cleanupClass(aClass);
}
catch (Exception e) {
// Ignore cleanup failed. In some cases we cannot find ourInstance field if idea.jar is scrambled and names of the private fields changed
}
}
}
}
private static void cleanupClass(Class<?> aClass) throws Exception {
Field field = aClass.getDeclaredField("ourInstance");
field.setAccessible(true);
field.set(null, null);
}
}
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