ArithmeticException happens in average function with BigDecimal type -------------------------------------------------------------------- Key: DROOLS-2607 URL: https://issues.jboss.org/browse/DROOLS-2607 Project: Drools Issue Type: Bug Components: core engine Affects Versions: 7.5.0.Final Environment: RHDM 7.0 Reporter: Hiroko Miura Assignee: Mario Fusco Labels: support Attachments: RHDM700_averageException.zip ArithmeticException [1] could happen in average function for BigDecimal type at the following code https://github.com/kiegroup/drools/blob/7.5.x/drools-core/src/main/java/o... [1] java.lang.RuntimeException: java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result. at org.drools.core.rule.SingleAccumulate.getResult(SingleAccumulate.java:144) at org.drools.core.phreak.PhreakAccumulateNode.evaluateResultConstraints(PhreakAccumulateNode.java:654) at org.drools.core.phreak.PhreakAccumulateNode.doNode(PhreakAccumulateNode.java:97) at org.drools.core.phreak.RuleNetworkEvaluator.switchOnDoBetaNode(RuleNetworkEvaluator.java:567) at org.drools.core.phreak.RuleNetworkEvaluator.evalBetaNode(RuleNetworkEvaluator.java:538) at org.drools.core.phreak.RuleNetworkEvaluator.evalNode(RuleNetworkEvaluator.java:373) at org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:333) at org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:169) at org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:127) at org.drools.core.phreak.RuleExecutor.reEvaluateNetwork(RuleExecutor.java:212) at org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:87) at org.drools.core.concurrent.AbstractRuleEvaluator.internalEvaluateAndFire(AbstractRuleEvaluator.java:34) at org.drools.core.concurrent.SequentialRuleEvaluator.evaluateAndFire(SequentialRuleEvaluator.java:43) at org.drools.core.common.DefaultAgenda.fireLoop(DefaultAgenda.java:1067) at org.drools.core.common.DefaultAgenda.internalFireAllRules(DefaultAgenda.java:1014) at org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1006) at org.drools.core.impl.StatefulKnowledgeSessionImpl.internalFireAllRules(StatefulKnowledgeSessionImpl.java:1318) at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1309) at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1293) at com.sample.AccumulateExceptionTest.averageBigDecimalExceptionTest(AccumulateExceptionTest.java:43) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252) at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141) at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189) at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165) at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85) at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75) Caused by: java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result. at java.math.BigDecimal.divide(BigDecimal.java:1690) at org.drools.core.base.accumulators.BigDecimalAverageAccumulateFunction.getResult(BigDecimalAverageAccumulateFunction.java:98) at org.drools.core.base.accumulators.BigDecimalAverageAccumulateFunction.getResult(BigDecimalAverageAccumulateFunction.java:29) at org.drools.core.base.accumulators.JavaAccumulatorFunctionExecutor.getResult(JavaAccumulatorFunctionExecutor.java:145) at org.drools.core.rule.SingleAccumulate.getResult(SingleAccumulate.java:138) ... 48 more Please provide a way to specify MathContext for BigDecimal.divide() in order to avoid this exception.