[rules-users] ArrayIndexOutOfBounds when calling addKnowledgePackage?

[malkhafaji]

Additional information. When I removed the threads (everything executing
sequentially), I got rid of the first problem above which is the index out
of bounds exception. However, I am consistently getting the perm gen out of
memory exception although I have plenty of it.

So, I decided to create those 7 instances of KnowledgeBase objects and not
save them in memory (leave them eligible for GC) and I was able to get up to
20 instances created. When I added the statement that adds every newly
created KnowledgeBase to an existing array list, that is when I got the
memory exception again at around 5/6 KnowledgeBase.

If I try to create KnowledgeBase instances WITHOUT adding KnowledgePackages
to it (I am adding a total of 6), then I can create all KnowledgeBase
successfully.

I even created a whole new KnolwedgePackage array list from scratch on every
creation of KnowledgeBase just to isolate any potential problems due to
sharing of the array list among the newly created KnowledgeBases, and the
issue remains the same (memory error).

So, it is not the sharing of the array list of KnowledgePackage instances,
it is not the fact that I am creating multiple KnowledgeBases in memory. It
is the fact that I am creating multiple instances of KnowledgeBase objects
AND adding 6 KnowledgePackage objects to each one. I max out at around 5/6
and then it fails.

Here is the last run that failed (I printed out Runtime...freeMemory() and
availableMemory()):
Free memory: 45 MB
Available memory: 254 MB

Then the exception right when I wanted to add KP array list to the next
KnowledgeBase.
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