JESS: Shadow Facts

[Subrahmanyam]

Hi All   I have few java beans like   CarDemandPool { With Some properties and getter setter methods for those properties; Other utility methods; }   CustomerAppliedPool {             With Some properties and getter setter methods for those properties; Other utility methods; }     In my rules file I am trying to use these shadow facts and they are working fine. But when I am trying to instantiate CustomerAppliedPool in one of the utility methods of CarDemandPool then the exception is thrown which is     Jess reported an error in routine DefinstanceList.createNewShadowFact.   Message: Called method threw an exception.       at jess.d7.a(Unknown Source)       at jess.d7.a(Unknown Source)       at jess.Rete.definstance(Unknown Source)       at jess.Rete.definstance(Unknown Source)       at com.uprr.app.tcm.business.ldm.jess.JessRuleEngine.processInputs(JessRuleEngine.java:123)       at com.uprr.app.tcm.business.ldm.jess.JessRuleEngine.processRules(JessRuleEngine.java:62)       at com.uprr.app.tcm.business.jess.LDMRulesTestCommited.testProdCommitSurplusDemand(LDMRulesTestCommited.java:198)       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)       at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)       at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)       at java.lang.reflect.Method.invoke(Unknown Source)   I am using jess 6.1 version.   One more thing I wanted to inform you is that I am using the CarDemandPool fact and customerAppliedPool fact in the rules file individually. Can there be a confusion of CustomerAppliedPool individual fact and the object I am trying to instantiate in demand pool?   Please help me on this if you have any Ideas. Thanks in advance.   Regards Subrahmanyam