Still crashity crashing

[Attila Szegedi]

Specifically, in my case emitting a class through ASM that has this in  
it:

         mv.visitMethodInsn(INVOKEDYNAMIC, "java/dyn/InvokeDynamic",  
"dyn:getprop:helloText", "(Ljava/lang/Object;)Ljava/lang/String");

crashes the JVM sometime after it loads the class. Note how there's no  
semicolon after "Ljava/lang/String"

Attila.

On 2009.08.02., at 23:34, Attila Szegedi wrote:

> I too managed to crash it yesterday, but it turned out I  
> accidentally emitted invalid bytecode from ASM - I forgot to end the  
> binary name of a class with semicolon in method signature of an  
> invokedynamic instruction. Amazingly, neither ASM nor the verifier  
> caught it.  The crash message was something along the lines of  
> "ShouldNotBeHere" or similar :-)
>
> All I want to say is, in my case it crashed because I fed it  
> garbage. Not necessarily true in your case, but worth doublechecking  
> what you do (knowing you, you probably did it anyway before posting).
>
> Attila.
>
> On 2009.08.02., at 22:12, Charles Oliver Nutter wrote:
>
>> Ok, finally circled back around to testing things again. With  
>> Attila's
>> build, I'm still getting crashes, but more seems to work.
>>
>> I've attached the dump from the crash. To reproduce:
>>
>> 1. grab and unpack a JRuby nightly from
>> 2. set MLVM into JAVA_HOME
>> 3. run bin/jruby -J-Djruby.compile.invokedynamic=true
>> -J-XX:+EnableInvokeDynamic bench/bench_fib_recursive.rb 100
>>
>> It should blow up pretty quickly. I have not had opportunity to  
>> narrow
>> it down any more than this.
>>
>> Because of the crashing, it's difficult for me to move forward on  
>> indy
>> work :( I'm standing by to do anything I can do to help figure it  
>> out.
>>
>> - Charlie