VM and JDK classes aren't aligned

[John Rose]

I recently committed to JDK7 a bundle of coordinated changes to the JDK and JVM.  It looks like we failed to promote, in jdk7-b92, the JDK changes that go with the most recent JVM changes.  These JVM changes are in hs19-b01.

The JDK changes will catch up in jdk7-b93.

(Reminder:  This mismatch only affects people who use UnlockExperimentalVMOptions and EnableInvokeDynamic or EnableMethodHandles.)

For now, please grab this file and prepend it onto your BCP:
  http://blogs.sun.com/jrose/resource/jsr292/hs19-b01-jsr292-patch.jar

Here's the option, of course:
  -Xbootclasspath/p:$DOWNLOADS/hs19-b01-jsr292-patch.jar

Current unit tests are in this file:
  http://blogs.sun.com/jrose/resource/jsr292/hs19-b01-jsr292-tests.jar

It requires a recent version of JUnit (4.5 or better):
  http://www.junit.org/node/401

Here's the complete command line:
  $JAVA7_HOME/bin/java} \
  -XX:+{UnlockExperimentalVMOptions,EnableInvokeDynamic} \
  -Xbootclasspath/p:$DOWNLOADS/hs19-b01-jsr292-patch.jar \
  -cp $$DOWNLOADS/hs19-b01-jsr292-tests.jar:$DOWNLOADS/junit-4.5.jar \
     org.junit.runner.JUnitCore test.java.dyn.MethodHandlesTest

Sorry for the trouble.  Please let me know if this works.

-- John

On May 22, 2010, at 4:55 PM, Rémi Forax wrote:

> Hi all,
> testing my pet project with jdk7b94, I get a crash (with c1 or c2).
> The crash apperas before the main is executed
> 
> Commandline:
> java -server -XX:+AnonymousClasses -XX:+UnlockExperimentalVMOptions 
> -XX:+EnableInvokeDynamic 
> -Xbootclasspath/a:$LIB/phpreboot.jar:$LIB/tatoo-runtime.jar:$LIB/asm-all-3.2.jar 
> com.googlecode.phpreboot.Main $@
> 
> Invalid layout of java.dyn.CallSite at target
> #
> # A fatal error has been detected by the Java Runtime Environment:
> #
> #  Internal Error (javaClasses.cpp:48), pid=2110, tid=1604464
> #  fatal error: Invalid layout of preloaded class
> #
> # JRE version: 7.0-b94
> # Java VM: Java HotSpot(TM) Client VM (19.0-b01 mixed mode, sharing 
> linux-x86 )
> # An error report file with more information is saved as:
> # /home/forax/java/workspace/phpreboot/hs_err_pid2110.log
> #
> # If you would like to submit a bug report, please visit:
> #   http://java.sun.com/webapps/bugreport/crash.jsp
> #
> Abandon (core dumped)
> 
> I know that jdk7b92 doesn't exhibit this error.
> 
> Rémi
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