[rules-users] Java Heap Space Out of Memory

[newbie]

Here's the stacktrace:

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
	at
org.drools.core.base.accumulators.JavaAccumulatorFunctionExecutor.createContext(JavaAccumulatorFunctionExecutor.java:81)
	at org.drools.core.rule.Accumulate.createContext(Accumulate.java:126)
	at
org.drools.core.phreak.PhreakAccumulateNode.doLeftInserts(PhreakAccumulateNode.java:145)
	at
org.drools.core.phreak.PhreakAccumulateNode.doNode(PhreakAccumulateNode.java:81)
	at
org.drools.core.phreak.RuleNetworkEvaluator.switchOnDoBetaNode(RuleNetworkEvaluator.java:562)
	at
org.drools.core.phreak.RuleNetworkEvaluator.evalBetaNode(RuleNetworkEvaluator.java:533)
	at
org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:335)
	at
org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:162)
	at
org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:117)
	at
org.drools.core.phreak.RuleExecutor.reEvaluateNetwork(RuleExecutor.java:199)
	at
org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:66)
	at
org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:927)
	at
org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1187)
	at
org.drools.core.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:957)
	at
org.drools.core.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:931)
	at
org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:233)
	at
org.optaplanner.core.impl.score.director.drools.DroolsScoreDirector.calculateScore(DroolsScoreDirector.java:98)
	at
org.optaplanner.core.impl.solver.scope.DefaultSolverScope.calculateScore(DefaultSolverScope.java:101)
	at
org.optaplanner.core.impl.bestsolution.BestSolutionRecaller.solvingStarted(BestSolutionRecaller.java:58)
	at
org.optaplanner.core.impl.solver.DefaultSolver.solvingStarted(DefaultSolver.java:177)
	at
org.optaplanner.core.impl.solver.DefaultSolver.solve(DefaultSolver.java:154)

I am not using custom movelistfactory. I am using drools score calculation.
Using visualvm I get this output. Thanks.

test.png <http://drools.46999.n3.nabble.com/file/n4026831/test.png>  



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