90 lines
3.6 KiB
Java
90 lines
3.6 KiB
Java
/*
|
|
* Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This code 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 General Public License
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*/
|
|
|
|
/**
|
|
* @test
|
|
* @bug 6331574
|
|
* @summary test isModifiableClass
|
|
* @author Robert Field, Sun Microsystems
|
|
*
|
|
* @run build IsModifiableClassApp IsModifiableClassAgent
|
|
* @run shell MakeJAR3.sh IsModifiableClassAgent 'Can-Retransform-Classes: true'
|
|
* @run main/othervm -javaagent:IsModifiableClassAgent.jar IsModifiableClassApp
|
|
*/
|
|
import java.lang.instrument.*;
|
|
|
|
public class IsModifiableClassAgent
|
|
{
|
|
public static boolean fail = false;
|
|
public static boolean completed = false;
|
|
|
|
public static void
|
|
premain( String agentArgs,
|
|
Instrumentation instrumentation)
|
|
{
|
|
System.out.println("IsModifiableClassAgent started");
|
|
|
|
Class[] allClasses = instrumentation.getAllLoadedClasses();
|
|
int modCount = 0;
|
|
int unmodCount = 0;
|
|
|
|
for (int i = 0; i < allClasses.length; i++)
|
|
{
|
|
Class klass = allClasses[i];
|
|
boolean isMod = instrumentation.isModifiableClass(klass);
|
|
if (isMod && klass.isArray()) {
|
|
System.err.println("Error: array class returned as modifiable: " + klass);
|
|
fail = true;
|
|
}
|
|
if (isMod && klass.isPrimitive()) {
|
|
System.err.println("Error: primitive class returned as modifiable: " + klass);
|
|
fail = true;
|
|
}
|
|
try {
|
|
instrumentation.retransformClasses(klass);
|
|
if (!isMod) {
|
|
System.err.println("Error: unmodifiable class retransformable: " + klass);
|
|
fail = true;
|
|
}
|
|
} catch (UnmodifiableClassException e) {
|
|
if (isMod) {
|
|
System.err.println("Error: modifiable class not retransformable: " + klass);
|
|
System.err.println(" exception: " + e);
|
|
fail = true;
|
|
}
|
|
} catch (Throwable e) {
|
|
System.err.println("Error: bad return from retransform: " + klass);
|
|
System.err.println(" ERROR: " + e);
|
|
fail = true;
|
|
}
|
|
if (isMod) {
|
|
++modCount;
|
|
} else {
|
|
++unmodCount;
|
|
}
|
|
}
|
|
System.out.println("modifiable: " + modCount + ". unmodifiable: " + unmodCount);
|
|
completed = true;
|
|
}
|
|
}
|