/**
* Copyright (C) 2010-2017 Gordon Fraser, Andrea Arcuri and EvoSuite
* contributors
*
* This file is part of EvoSuite.
*
* EvoSuite is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3.0 of the License, or
* (at your option) any later version.
*
* EvoSuite is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with EvoSuite. If not, see <http://www.gnu.org/licenses/>.
*/
package org.evosuite.runtime.classhandling;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.awt.*;
import java.lang.reflect.Field;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* Class used to handle static state of JDK API classes we cannot instrument
*
* Created by Andrea Arcuri on 08/11/15.
*/
public class JDKClassResetter {
private static Logger logger = LoggerFactory.getLogger(JDKClassResetter.class);
private static Map renderingHintsKeyIdentityMap;
private static Map renderingHintsKeyIdentityMapCopy;
/**
* Save current state of all JDK static fields we are going te reset later on
*/
public static void init(){
try {
Field field = RenderingHints.Key.class.getDeclaredField("identitymap");
field.setAccessible(true);
renderingHintsKeyIdentityMap = (Map) field.get(null);
renderingHintsKeyIdentityMapCopy = new LinkedHashMap<>(renderingHintsKeyIdentityMap.size());
renderingHintsKeyIdentityMapCopy.putAll(renderingHintsKeyIdentityMap);
} catch (Exception e) {
//shouldn't really happen
logger.error("Failed to handle 'identitymap': "+e.toString());
}
}
public static void reset(){
if(renderingHintsKeyIdentityMap != null){
renderingHintsKeyIdentityMap.clear();
renderingHintsKeyIdentityMap.putAll(renderingHintsKeyIdentityMapCopy);
}
}
}