<br>Hi all,<br><br>Using 4.0.7.<br><br>I am getting this null pointer when doing an Insert into working memory.   <br><br>I know the object I am inserting is not null.<br><br><br>java.lang.NullPointerException<br>at org.drools.util.PrimitiveLongStack$Page.remove(PrimitiveLongStack.java:137)<br>
at org.drools.util.PrimitiveLongStack.pop(PrimitiveLongStack.java:69)<br>at org.drools.common.AbstractFactHandleFactory.newFactHandle(AbstractFactHandleFactory.java:44)<br>at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:785)<br>
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:684)<br><br><br>Any idea what might be causing this?  <br><br><br clear="all">Scott<br><br><br>