MaxMSP 5 – MXJ on Snow Leopard 10.6.3 (problems with MaxSystem.* commands)
Hi there,
I am having some strange issues with MXJ since upgrading to Snow Leopard. Basically, almost any static calls to MaxSystem.* simply never complete, and give no error messages on the Console.app or in the max window. I’ve tried to catch exceptions and just can’t find anything.
I re-installed Java 1.5 (per these instructions http://chxor.chxo.com/post/183013153/installing-java-1-5-on-snow-leopard) and have tried the programs on 1.5 and 1.6.
The example program runs fine on 4.6 (which is still on my machine). It runs fine on MaxMSP 5 on windows. It runs fine on MaxMSP 5 on OS X 10.5.8.
It just won’t run on 10.6.3!
I’m beginning to wonder if there is some issue with MXJ JNI calls? Perhaps there is a 32/64 bit problem with the JNI library?
Anyway, I am enclosing the source, class, maxpatch 4.6 and 5.0 files for your testing. If you are on Snow Leopard could you try it out?
Thanks,
Christopher
So I just tried this on another Snow Leopard machine and it seemed to work. Can anyone think of any reasons why the MaxSystem.* calls wouldn’t be working on my machine?
Another update — after configuring the mxj JVM to output like
max.jvm.option -Xdebug
max.jvm.option -Xnoagent
max.jvm.option -Xrunjdwp:transport=dt_socket,address=8074,server=y,suspend=n
max.jvm.option -XX:-UseSharedSpaces
and connecting to the the output via:
jdb -attach 8074
it reveals that:
none:~ bakercp$ jdb -attach 8074
Set uncaught java.lang.Throwable
Set deferred uncaught java.lang.Throwable
Initializing jdb …
>
Exception occurred: java.lang.UnsatisfiedLinkError (uncaught)"thread=AWT-AppKit", com.cycling74.max.MaxSystem.locateFile(), line=-1 bci=-1
AWT-AppKit[1]
—-
etc etc.
Any tips? I get unsatisfied link errors on all "native" java calls within the max.jar.
Well, I finally solved it. Turns out that a copy of the 4.6 max.jar and jitter.jar were in the /Library/java/Extensions folder. No idea how they got there, but they were the culprit. Thanks to JKC for the tips.