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5088398: 3/2 java.lang.instrument TCK test deadlock (test11)

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Add regression test for single-threaded bootstrap classloader.

Reviewed-by: sspitsyn
This commit is contained in:
Daniel D. Daugherty 2008-03-24 15:05:09 -07:00
parent bab69115c7
commit fa12ec89ef
6 changed files with 390 additions and 0 deletions
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72
jdk/test/java/lang/instrument/ParallelTransformerLoader.sh Normal file
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#
# Copyright 2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
# CA 95054 USA or visit www.sun.com if you need additional information or
# have any questions.
#
# @test
# @bug 5088398
# @summary Test parallel class loading by parallel transformers.
# @author Daniel D. Daugherty as modified from the code of Daryl Puryear @ Wily
#
# @run shell MakeJAR3.sh ParallelTransformerLoaderAgent
# @run build ParallelTransformerLoaderApp
# @run shell/timeout=240 ParallelTransformerLoader.sh
#
if [ "${TESTJAVA}" = "" ]
then
echo "TESTJAVA not set. Test cannot execute. Failed."
exit 1
fi
if [ "${TESTSRC}" = "" ]
then
echo "TESTSRC not set. Test cannot execute. Failed."
exit 1
fi
if [ "${TESTCLASSES}" = "" ]
then
echo "TESTCLASSES not set. Test cannot execute. Failed."
exit 1
fi
JAR="${TESTJAVA}"/bin/jar
JAVAC="${TESTJAVA}"/bin/javac
JAVA="${TESTJAVA}"/bin/java
"${JAVAC}" -d . \
"${TESTSRC}"/TestClass1.java \
"${TESTSRC}"/TestClass2.java \
"${TESTSRC}"/TestClass3.java
"${JAR}" cvf Test.jar Test*.class
# Removing the test class files is important. If these
# .class files are available on the classpath other
# than via Test.jar, then the deadlock will not reproduce.
rm -f Test*.class
"${JAVA}" ${TESTVMOPTS} -javaagent:ParallelTransformerLoaderAgent.jar=Test.jar \
-classpath "${TESTCLASSES}" ParallelTransformerLoaderApp
result=$?
echo "result=$result"
exit $result

120
jdk/test/java/lang/instrument/ParallelTransformerLoaderAgent.java Normal file
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/*
* Copyright 2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
import java.lang.instrument.*;
import java.net.*;
import java.io.*;
import java.security.*;
/**
* Test Java Agent
*
* @author Daryl Puryear
* @copyright 1999-2004 Wily Technology, Inc. All rights reserved.
*/
public class ParallelTransformerLoaderAgent
{
private static URL sURL;
private static ClassLoader sClassLoader;
public static synchronized ClassLoader
getClassLoader()
{
return sClassLoader;
}
public static synchronized void
generateNewClassLoader()
{
sClassLoader = new URLClassLoader(new URL[] {sURL});
}
public static void
premain( String agentArgs,
Instrumentation instrumentation)
throws Exception
{
if (agentArgs == null || agentArgs == "")
{
System.err.println("Error: No jar file name provided, test will not run.");
return;
}
sURL = (new File(agentArgs)).toURL();
System.out.println("Using jar file: " + sURL);
generateNewClassLoader();
instrumentation.addTransformer(new TestTransformer());
}
private static class TestTransformer
implements ClassFileTransformer
{
public byte[]
transform( ClassLoader loader,
String className,
Class classBeingRedefined,
ProtectionDomain protectionDomain,
byte[] classfileBuffer)
throws IllegalClassFormatException
{
String tName = Thread.currentThread().getName();
// In 160_03 and older, transform() is called
// with the "system_loader_lock" held and that
// prevents the bootstrap class loaded from
// running in parallel. If we add a slight sleep
// delay here when the transform() call is not
// main or TestThread, then the deadlock in
// 160_03 and older is much more reproducible.
if (!tName.equals("main") && !tName.equals("TestThread")) {
System.out.println("Thread '" + tName +
"' has called transform()");
try {
Thread.sleep(500);
} catch (InterruptedException ie) {
}
}
// load additional classes when called from other threads
if (!tName.equals("main"))
{
loadClasses(3);
}
return null;
}
public static void
loadClasses( int index)
{
ClassLoader loader = ParallelTransformerLoaderAgent.getClassLoader();
try
{
Class.forName("TestClass" + index, true, loader);
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
}

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jdk/test/java/lang/instrument/ParallelTransformerLoaderApp.java Normal file
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/*
* Copyright 2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/**
* Test Java Program
*
* @author Daryl Puryear
* @copyright 1999-2004 Wily Technology, Inc. All rights reserved.
*/
public class ParallelTransformerLoaderApp
{
private static final int kNumIterations = 1000;
public static void
main( String[] args)
throws Exception
{
System.out.println();
System.out.print("Starting test with " + kNumIterations + " iterations");
for (int i = 0; i < kNumIterations; i++)
{
// load some classes from multiple threads (this thread and one other)
Thread testThread = new TestThread(2);
testThread.start();
loadClasses(1);
// log that it completed and reset for the next iteration
testThread.join();
System.out.print(".");
ParallelTransformerLoaderAgent.generateNewClassLoader();
}
System.out.println();
System.out.println("Test completed successfully");
}
private static class TestThread
extends Thread
{
private final int fIndex;
public
TestThread( int index)
{
super("TestThread");
fIndex = index;
}
public void
run()
{
loadClasses(fIndex);
}
}
public static void
loadClasses( int index)
{
ClassLoader loader = ParallelTransformerLoaderAgent.getClassLoader();
try
{
Class.forName("TestClass" + index, true, loader);
}
catch (Exception e)
{
e.printStackTrace();
}
}
}

36
jdk/test/java/lang/instrument/TestClass1.java Normal file
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/*
* Copyright 2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/**
* Test Java Program
*
* @author Daryl Puryear
* @copyright 1999-2004 Wily Technology, Inc. All rights reserved.
*/
public class TestClass1
{
public
TestClass1()
{
}
}

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jdk/test/java/lang/instrument/TestClass2.java Normal file
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/*
* Copyright 2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/**
* Test Java Program
*
* @author Daryl Puryear
* @copyright 1999-2004 Wily Technology, Inc. All rights reserved.
*/
public class TestClass2
{
public
TestClass2()
{
}
}

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jdk/test/java/lang/instrument/TestClass3.java Normal file
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/*
* Copyright 2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/**
* Test Java Program
*
* @author Daryl Puryear
* @copyright 1999-2004 Wily Technology, Inc. All rights reserved.
*/
public class TestClass3
{
public
TestClass3()
{
}
}