The NoClassDefFoundError bug is back :(

[Rémi Forax]

John, Christian,
I was updating the multi-dispatch sample from the cookbook
when the NoClassDefFoundError bug re-appear.



[forax at localhost multi-dispatch]$ java -ea -cp classes:. Main2
skip java.lang.String.contentEquals/2
skip java.lang.String.replace/3
Exception in thread "main" java.lang.NoClassDefFoundError: Main2
     at java.lang.invoke.MethodHandle.invokeExact(MethodHandle.java)
     at java.lang.invoke.MethodHandle.invokeExact(MethodHandle.java)
     at Main2.test2(Main2.java:27)
     at Main2.main(Main2.java:42)

[forax at localhost src]$ java -version
java version "1.8.0-ea"
Java(TM) SE Runtime Environment (build 1.8.0-ea-b07)
Java HotSpot(TM) 64-Bit Server VM (build 22.0-b03, mixed mode)

The sample is here:
http://code.google.com/p/jsr292-cookbook/source/browse/trunk/multi-dispatch/src/jsr292/cookbook/mdispatch/

You can compile it from src,
javac -d ../classes jsr292/cookbook/mdispatch/*.java

The example that doesn't work is Main2, which is created by compiling 
Main2.java
and then by rewriting all invokevirtual/invokestatic to invokedynamic 
using this line
java -cp classes:../lib/asm-debug-all-4.0_RC1.jar 
jsr292.cookbook.mdispatch.Rewriter Main2.class

Note that Main2.class is already rewritten so you don't have to do it
if you just want to reproduce the bug without modifying Main2.java

I think the error is thrown when calling a method handle created by this 
line
https://code.google.com/p/jsr292-cookbook/source/browse/trunk/multi-dispatch/src/jsr292/cookbook/mdispatch/SmallSelectorMetadata.java?spec=svn13&r=13#121
at this callsite
http://code.google.com/p/jsr292-cookbook/source/browse/trunk/multi-dispatch/Main2.java#27

How the code works: it installs a bimorphic cache on the receiver
and an inlining cache on the parameters. After 3 cache misses, the 
implementation
switch to use a table based resolution that lookup for most specific 
method handle and
use an exactInvoker to call it. The bug appear when the exactInvoker is 
called.

regards,
Rémi