still no fun with invokedynamic
blackdrag at gmx.org
Wed Sep 9 11:51:20 PDT 2009
Rémi Forax schrieb:
> Le 09/09/2009 20:42, Jochen Theodorou a écrit :
>> hi all,
>> I am in urgend need of an actual VM with MethodHandles, but this is as
>> always quuite complicated. This time I created a chroot envrionment for
>> 32 bit, that was where I last time had to stop. I managed to get it
>> compiled by the patch that was provided here 5 months ago and finally
>> had a VM to run. So I did:
>> -XX:+UnlockExperimentalVMOptions -XX:+EnableMethodHandles
>> -XX:+EnableInvokeDynamic FidgetDemo
>> and got:
>>> # A fatal error has been detected by the Java Runtime Environment:
>>> # Internal Error (methodHandles.cpp:98), pid=8548, tid=4149795728
>>> # Error: guarantee(z&& EnableMethodHandles,"can only enable once, and only if -XX:+EnableMethodHandles")
>>> # JRE version: 7.0
>>> # Java VM: OpenJDK Client VM (16.0-b08 mixed mode linux-x86 )
>>> # An error report file with more information is saved as:
>>> # /tmp/t/hs_err_pid8548.log
>>> # If you would like to submit a bug report, please visit:
>>> # http://java.sun.com/webapps/bugreport/crash.jsp
>>> # The crash happened outside the Java Virtual Machine in native code.
>>> # See problematic frame for where to report the bug.
>> No idea why this fails like this. What I now need is either a workaround
>> for this problem here, or a running JVM with method handles that I can
>> download somewhere. As long as it is linux it should be fine, whatever
>> it is.
>> Who can help me here?
> Hi jochen,
> just try to remove -XX:+EnableMethodHandles.
> This line works for me:
> -XX:+UnlockExperimentalVMOptions -XX:+EnableInvokeDynamic FidgetDemo
java -XX:+UnlockExperimentalVMOptions -XX:+EnableMethodHandles FidgetDemo
OpenJDK Server VM warning: JSR 292 invokedynamic is disabled in this
JVM. Use -XX:+EnableInvokeDynamic to enable.
Fidgety self-modifying call site...
--- loop #0
Exception in thread "main" java.lang.IncompatibleClassChangeError
doesn't look good
Jochen "blackdrag" Theodorou
The Groovy Project Tech Lead (http://groovy.codehaus.org)
More information about the mlvm-dev