because something in the bundle is made specifically for a mac 10.6
and it isn't backwards compatible.
I'm having the same issue.
and here's my java
Device-873EF9:~ Tahj182$ java -version
java version "1.5.0_30"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_30-b03-389-9M3425)
Java HotSpot(TM) Client VM (build 1.5.0_30-161, mixed mode, sharing)
Device-873EF9:~ Tahj182$