32 bit java libs within 64 bit Matlab (maci64)

Hello everybody.

I'd like to instantiate a java class out of MATLAB. I have Matlab 2011a on a Mac (64bit) and the java class i want to use is just available in 32 bit. Unfortunately when I try to do

retObj=javaObject('MyClass');

I get a bunch of errors back, amongst others:

/System/Library/Java/Extensions/libQTJNative.jnilib: no suitable image found. Did find: /System/Library/Java/Extensions/libQTJNative.jnilib: no matching architecture in universal wrapper

I can use the library from the console, when I use

java -d32 MyClass

Does anybody know how to force Matlab using java 32bit within Matlab? Thanks, Stephan