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<TITLE>Potential Deadlock using fireUntilHalt and signalEvent</TITLE>
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<P><FONT SIZE=2 FACE="Arial">Hi there,</FONT>
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<P><FONT SIZE=2 FACE="Arial">I am facing the following situation: In a few words, I have the following separate Threads running:</FONT>
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<P><FONT SIZE=2 FACE="Arial">- a fireUntilHalt() on the StatefulKnowledgeSession --> Thread-1 in the picture</FONT>
<BR><FONT SIZE=2 FACE="Arial">- a recurrent insertion of events into the knowledge base --> Thread-main in the picture</FONT>
<BR><FONT SIZE=2 FACE="Arial">- a custom asynchroneous WorkItemHandler, which does some fake work and then signalizes completion to the flow engine (Threads 3&4 in the picture).</FONT></P>
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<P><FONT SIZE=2 FACE="Arial">It is often the case that my program runs into a deadlock. </FONT>
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<P><FONT SIZE=2 FACE="Arial">My impression is, that fireUntilHalt() (Thread1) gets the synchronized monitor on AbstractWorkingMemory.actionQueue in line 1411 , while the WorkItemManager (Thread3) gets the monitor on NamedEntryPoint in line 120.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">When fireUntilHalt() then tries to get the monitor on NamedEntryPoint in line 260, while the WorkItemManager tries to get the monitor on AbstractWorkingMemory.actionQueue in line 1411, we have a deadlock.</FONT></P>
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<P><FONT SIZE=2 FACE="Arial">Please correct me if there is any misunderstanding from my side regarding the synchronization concepts.</FONT>
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<P><FONT SIZE=2 FACE="Arial">Thanks and best </FONT>
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<P><FONT SIZE=2 FACE="Arial">Markus</FONT>
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<P><FONT FACE="Arial" SIZE=2 COLOR="#000000"> <<...>> </FONT>
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