[rules-users] threw error java.lang.ClassCastException: org.drools.reteoo.FromNode$FromMemory cannot be cast to org.drools.reteoo.BetaMemory

[mohdejaz74]

----------
Snapshot#1
---------
when
	...
	a   : ...
	exists( Foo(...) from a.b.c )
	foo : Foo(...) from a.b.c // same as above
then

----------
Snapshot#2
----------
when
	...
	a   : ...
	bar : Boo( x == 'some value') from a.d.e
	foo : Foo(...) from a.b.c // same as above
then

----------
Snapshot#3
----------
when
	...
	a   : ...
	bar : Boo( x == 'some value') from a.d.e
	foo : Foo(...) from a.b.c // same as above
then


I just realized that snapshot 2 and 3 are exactly same ... 

Do you think adding same rule again to KB would cause this issue?

I saw something similar posted by "dcrissman"

Ejaz



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