/**
* 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.classpath;
import org.evosuite.Properties;
import org.evosuite.runtime.agent.ToolsJarLocator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
/**
* <p>ClassPathHacker class.</p>
*
* @author fraser
*/
public class ClassPathHacker {
private static Logger logger = LoggerFactory.getLogger(ClassPathHacker.class);
private static final Class<?>[] parameters = new Class[] { URL.class };
/**
* Locate and add to classpath the tools.jar.
* It is important that tools.jar ends up in the classpath of the <emp>system</emp> classloader,
* otherwise exceptions in EvoSuite classes using tools.jar
*
* <p>
* If we need to activate JavaAgent (eg to handle environment in generated tests), we need
* to be sure we can use tools.jar
*/
public static void initializeToolJar() throws RuntimeException {
ToolsJarLocator locator = new ToolsJarLocator(Properties.TOOLS_JAR_LOCATION);
locator.getLoaderForToolsJar();
if (locator.getLocationNotOnClasspath() != null) {
try {
logger.info("Using JDK libraries at: " + locator.getLocationNotOnClasspath());
addFile(locator.getLocationNotOnClasspath()); //FIXME needs refactoring
} catch (IOException e) {
throw new RuntimeException("Failed to add " + locator.getLocationNotOnClasspath() + " to system classpath");
}
}
}
/**
* <p>addFile</p>
*
* @param s a {@link java.lang.String} object.
* @throws java.io.IOException if any.
*/
public static void addFile(String s) throws IOException {
File f = new File(s);
addFile(f);
}//end method
/**
* <p>addFile</p>
*
* @param f a {@link java.io.File} object.
* @throws java.io.IOException if any.
*/
public static void addFile(File f) throws IOException {
//addURL(f.toURL());
addURL(f.toURI().toURL());
}//end method
/**
* <p>addURL</p>
*
* @param u a {@link java.net.URL} object.
* @throws java.io.IOException if any.
*/
public static void addURL(URL u) throws IOException {
URLClassLoader sysloader = (URLClassLoader) ClassLoader.getSystemClassLoader();
Class<?> sysclass = URLClassLoader.class;
try {
Method method = sysclass.getDeclaredMethod("addURL", parameters);
method.setAccessible(true);
method.invoke(sysloader, new Object[] { u });
} catch (Throwable t) {
t.printStackTrace();
throw new IOException("Error, could not add URL to system classloader");
}//end try catch
}//end method
}