As mentioned, This release hangs on start up. The UI is frozen so I wouldn't be able to give you the results of clicking the yjagent button.
Attached is an strace and a screen shot.
The startup project is Bundler, so not too large and plain Ruby.
Memory use is fine (500-90MB of 5802MB). CPU use is 10-105% with lots to of CPU's to spare.
Start up arguments are
$ uname -a
Linux desktop 2.6.32-25-generic #45-Ubuntu SMP Sat Oct 16 19:52:42 UTC 2010 x86_64 GNU/Linux
When I add the yjpagent library (64 bit) I got a GUI crash on startup.
Attached are pid 4029 log and hprof files.
I then started using strace, and again saw a java crash in the shell window (GUI remains, but unresponsive):
java.lang.OutOfMemoryError: PermGen space
Dumping heap to java_pid4285.hprof ...
Heap dump file created [102410024 bytes in 1.275 secs]
However, the GUI has not crashed and just sits here hung, much like as first reported.
I then `kill -9` the java process.
The files for this pid4285 are attached too.