Name: rmT116609 Date: 05/20/2004


FULL PRODUCT VERSION :
java version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b32c)
Java HotSpot(TM) Client VM (build 1.5.0-beta-b32c, mixed mode)

FULL OS VERSION :
Microsoft Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
In the enclosed program I have added a shutdown hook in premain() that provokes an assertion error when run using java. The program works OK when run under jdb.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile the enclosed program:
>javac -Xlint -source 1.5 -target 1.5 instrumentation\Instrument3.java

It fails when run using

>java -Xbootclasspath/p:. -javaagent:instrumentation.Instrument3 instrumentation.Instrument3

and works when run using

>jdb run

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Something like

Hello World
Shutdown Hook 865

The actual output from jdb is:


>jdb -J-Xbootclasspath/p:. -J-javaagent:instrumentation.Instrument3 instrumentation.Instrument3
Initializing jdb ...
> run
run instrumentation.Instrument3
Set uncaught java.lang.Throwable
Set deferred uncaught java.lang.Throwable
>
VM Started: Hello World

The application exited
Shutdown Hook 865

>
ACTUAL -
>java -Xbootclasspath/p:. -javaagent:instrumentation.Instrument3 instrumentation.Instrument3
Hello World
*** java.lang.instrument ASSERTION FAILED ***: "!errorOccurred" at ../../../src/share/instrument/JPLISAgent.c line: 1067
java.lang.InternalError
        at sun.instrument.InstrumentationImpl.getAllLoadedClasses0(Native Method)
        at sun.instrument.InstrumentationImpl.getAllLoadedClasses(InstrumentationImpl.java:86)
        at instrumentation.Instrument3+1.run(Instrument3.java:18)

>

ERROR MESSAGES/STACK TRACES THAT OCCUR :
See above

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package instrumentation;

import java.lang.instrument.ClassFileTransformer;
import java.lang.instrument.IllegalClassFormatException;
import java.lang.instrument.Instrumentation;

public class Instrument3{

  private static Instrumentation inst;

  public static void premain(String options, Instrumentation ins) {
    inst = ins;
    
    // ins.addTransformer(new Logger() );
    Runtime.getRuntime().addShutdownHook(new Thread() {
public void run() {
System.err.println("Shutdown Hook " + inst.getAllLoadedClasses().length);
}
      });
  }

  public static void main(String args[] ) {
    System.err.println("Hello World" );
  }

  public static class Logger implements ClassFileTransformer {
    public byte[] transform(java.lang.ClassLoader loader,
java.lang.String className,
java.lang.Class classBeingRedefined,
java.security.ProtectionDomain protectionDomain,
byte[] classfileBuffer) throws IllegalClassFormatException
    {
      // System.err.println(className);
      return null;
    }
  }
}

---------- END SOURCE ----------
(Incident Review ID: 270016)
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