Skip vendors that are irrelevant

There surely are no Apple JVMs for other OSes than OS X.
Correspondingly, there surely are no IBM, Blackdown, BEA, FSF or
FreeBSD JVMs for OS X. At least not ones that would be relevant today.

Change-Id: I0ee6f904665a2145771802beffe54268718bef50
Clean jvmfwk tracing output

Change-Id: I070fb24e9466d697a6014bd65635f6cda8736819