Jira extremely slow under Weblogic 8.1 SP3

After deploying Jira under Weblogic and connected to a MySQL database, Jira runs extremely slow when creating or doing the Find Issue feature, and then spits out this error:

I have checked and re-checked all my settings, and recompiled the app a number of times. I can't figure out why this is happening, it seems to be completely random and everything on my Weblogic server looks ok.

As you can see i'm using the standard JDK with SP3, because the Jrockit JDK was no better.

java.net.SocketException: Broken pipe
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
at weblogic.servlet.internal.ChunkUtils.writeChunkTransfer(ChunkUtils.java:247)
at weblogic.servlet.internal.ChunkUtils.writeChunks(ChunkUtils.java:223)
at weblogic.servlet.internal.ChunkOutput.flush(ChunkOutput.java:298)
at weblogic.servlet.internal.ChunkOutput.checkForFlush(ChunkOutput.java:373)
at weblogic.servlet.internal.ChunkOutput.write(ChunkOutput.java:243)
at weblogic.servlet.internal.ChunkOutputWrapper.write(ChunkOutputWrapper.java:113)
at weblogic.servlet.internal.ServletOutputStreamImpl.write(ServletOutputStreamImpl.java:184)
at weblogic.servlet.internal.WLOutputStreamWriter.write(WLOutputStreamWriter.java:111)
at weblogic.servlet.internal.WLOutputStreamWriter.write(WLOutputStreamWriter.java:126)
at weblogic.servlet.internal.DelegateChunkWriter.print(DelegateChunkWriter.java:99)
at weblogic.servlet.internal.ChunkOutputWrapper.print(ChunkOutputWrapper