https://answers.axonivy.com/questions/2435/java-lang-noclassdeffounderror-ch-ivyteam-ivy-job-ijobmanager-when-creating-instance-of-rule-engine-in-junit<p>Hi all</p> <p>Now i'm using ivy 6.3.0 and also use rule engine was already embedded inside, everything was fine when i use in ivy environment. but when i want to write unit test for the rule (.drl), i got exception in this line:</p> <pre><code>IRuleBase ruleBase = Rules.engine().createRuleBase() </code></pre> <p>Here is exception:</p> <pre><code>com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: java.lang.NoClassDefFoundError: ch/ivyteam/ivy/job/IJobManager at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2199) at com.google.common.cache.LocalCache.get(LocalCache.java:3934) at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3938) at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4821) at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4827) at com.google.inject.internal.FailableCache.get(FailableCache.java:48) at com.google.inject.internal.ConstructorInjectorStore.get(ConstructorInjectorStore.java:50) at com.google.inject.internal.ConstructorBindingImpl.initialize(ConstructorBindingImpl.java:136) at com.google.inject.internal.InjectorImpl.initializeJitBinding(InjectorImpl.java:547) at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:884) at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:805) at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:282) at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:214) at com.google.inject.internal.ProvidedByInternalFactory.initialize(ProvidedByInternalFactory.java:57) at com.google.inject.internal.LinkedProviderBindingImpl.initialize(LinkedProviderBindingImpl.java:76) at com.google.inject.internal.InjectorImpl.initializeJitBinding(InjectorImpl.java:547) at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:884) at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:805) at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:282) at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:214) at com.google.inject.internal.InjectorImpl.getProviderOrThrow(InjectorImpl.java:1006) at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:1038) at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:1001) at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1051) at ch.ivyteam.di.restricted.DiInjector.getInstance(DiInjector.java:43) at ch.ivyteam.ivy.rule.engine.internal.RuleEngine.createRuleBase(RuleEngine.java:14) at ch.axonivy.fintech.standard.guiframework.util.RuleStore.getStatelessRuleSession(RuleStore.java:64) at ch.axonivy.fintech.standard.rulesengine.DroolsService.applyBusinessRules(DroolsService.java:51) at ch.axonivy.fintech.standard.rulesengine.DroolsRuleEngine.executeBusinessRule(DroolsRuleEngine.java:71) at ch.axonivy.fintech.standard.rulesengine.BusinessRuleProvider.executeBusinessRule(BusinessRuleProvider.java:49) at ch.axonivy.fintech.standard.guiframework.core.RuleProcessor.executeBusinessRule(RuleProcessor.java:76) at ch.axonivy.fintech.standard.guiframework.workflow.BaseGuiWorkflow.initGlobalVar(BaseGuiWorkflow.java:316) at ch.axonivy.fintech.standard.qualification.processor.QualificationBusinessDecisionProcessor.initGlobalVarIfNeeded(QualificationBusinessDecisionProcessor.java:28) at ch.axonivy.fintech.mortgage.qualification.service.QualificationBusinessService.proceedQualificationDecision(QualificationBusinessService.java:22) at ch.axonivy.fintech.soba.test.integration.SobaQualificationBusinessServiceTest.should_return_dossier_status_GREEN_when_all_check_result_GREEN(SobaQualificationBusinessServiceTest.java:47) 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$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) Caused by: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: java.lang.NoClassDefFoundError: ch/ivyteam/ivy/job/IJobManager at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2199) at com.google.common.cache.LocalCache.get(LocalCache.java:3934) at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3938) at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4821) at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4827) at com.google.inject.internal.FailableCache.get(FailableCache.java:48) at com.google.inject.internal.MembersInjectorStore.get(MembersInjectorStore.java:68) at com.google.inject.internal.ConstructorInjectorStore.createConstructor(ConstructorInjectorStore.java:74) at com.google.inject.internal.ConstructorInjectorStore.access$000(ConstructorInjectorStore.java:29) at com.google.inject.internal.ConstructorInjectorStore$1.create(ConstructorInjectorStore.java:37) at com.google.inject.internal.ConstructorInjectorStore$1.create(ConstructorInjectorStore.java:33) at com.google.inject.internal.FailableCache$1.load(FailableCache.java:37) at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3524) at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2317) at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2280) at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2195) ... 57 more Caused by: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: java.lang.NoClassDefFoundError: ch/ivyteam/ivy/job/IJobManager at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2199) at com.google.common.cache.LocalCache.get(LocalCache.java:3934) at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3938) at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4821) at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4827) at com.google.inject.internal.FailableCache.get(FailableCache.java:48) at com.google.inject.internal.ConstructorInjectorStore.get(ConstructorInjectorStore.java:50) at com.google.inject.internal.ConstructorBindingImpl.initialize(ConstructorBindingImpl.java:136) at com.google.inject.internal.InjectorImpl.initializeJitBinding(InjectorImpl.java:547) at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:884) at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:805) at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:282) at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:214) at com.google.inject.internal.InjectorImpl.createImplementedByBinding(InjectorImpl.java:749) at com.google.inject.internal.InjectorImpl.createUninitializedBinding(InjectorImpl.java:647) at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:882) at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:805) at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:282) at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:214) at com.google.inject.internal.SingleFieldInjector.&lt;init&gt;(SingleFieldInjector.java:42) at com.google.inject.internal.MembersInjectorStore.getInjectors(MembersInjectorStore.java:131) at com.google.inject.internal.MembersInjectorStore.createWithListeners(MembersInjectorStore.java:98) at com.google.inject.internal.MembersInjectorStore.access$000(MembersInjectorStore.java:37) at com.google.inject.internal.MembersInjectorStore$1.create(MembersInjectorStore.java:45) at com.google.inject.internal.MembersInjectorStore$1.create(MembersInjectorStore.java:42) at com.google.inject.internal.FailableCache$1.load(FailableCache.java:37) at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3524) at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2317) at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2280) at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2195) ... 72 more Caused by: java.lang.ClassNotFoundException: ch.ivyteam.ivy.job.IJobManager at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 238 more </code></pre> <p>Does anyone know why and is there any ways to write ut test for rules?</p>enThu, 09 Feb 2017 11:17:16 -0500https://answers.axonivy.com/questions/2435/java-lang-noclassdeffounderror-ch-ivyteam-ivy-job-ijobmanager-when-creating-instance-of-rule-engine-in-junit/2436<p>Hi all in order to call this api in junit, your test case must extended from:</p> <pre><code>ch.ivyteam.ivy.rule.engine.testing.AbstractRuleEngineTest </code></pre> <p>it works for me</p>trungdvThu, 09 Feb 2017 11:17:16 -0500https://answers.axonivy.com/questions/2435/java-lang-noclassdeffounderror-ch-ivyteam-ivy-job-ijobmanager-when-creating-instance-of-rule-engine-in-junit/2436