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Facing issue integrating Spring3 and jBPM4.3 - NPE at ProcessEngineImpl.checkDb()
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created by <a href="http://community.jboss.org/people/lalitbhatia">Lalit Bhatia</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/549222#549222">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>M trying to integrate jBPM with Spring 3.0.3 but facing NullPointerException at <strong>ProcessEngineImpl.checkDb(ProcessEngineImpl.java:152)</strong>.</p><p>configuration files are attached.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The error originated at following line in ProcessEngineImpl which returns null.</p><p><strong>userCommandService = (CommandService) processEngineWireContext.get(CommandService.NAME_TX_REQUIRED_COMMAND_SERVICE);</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Please help.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>-------------------------------------------------------</p><p>Trace</p><p>----------------------------------------------------------</p><p>org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'workflowService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.jbpm.api.RepositoryService com.bankofamerica.crme.clientservice.service.impl.WorkflowServiceImpl.repositoryService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'repositoryService' defined in class path resource [eu/diversit/jbpm/spring/JbpmAutoSpringConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.jbpm.api.RepositoryService eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration.repositoryService()] threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jbpmProcessEngine' defined in class path resource [eu/diversit/jbpm/spring/JbpmAutoSpringConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.jbpm.api.ProcessEngine eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration.processEngine()] threw exception; nested exception is java.lang.NullPointerException<br/>    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:286)<br/>    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1064)<br/>    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)<br/>    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)<br/>    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)<br/>    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)<br/>    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)<br/>    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)<br/>    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:574)<br/>    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)<br/>    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)<br/>    at org.springframework.test.AbstractSingleSpringContextTests.createApplicationContext(AbstractSingleSpringContextTests.java:216)<br/>    at org.springframework.test.AbstractSingleSpringContextTests.loadContextLocations(AbstractSingleSpringContextTests.java:192)<br/>    at org.springframework.test.AbstractSingleSpringContextTests.loadContext(AbstractSingleSpringContextTests.java:172)<br/>    at org.springframework.test.AbstractSpringContextTests.getContext(AbstractSpringContextTests.java:133)<br/>    at org.springframework.test.AbstractSingleSpringContextTests.setUp(AbstractSingleSpringContextTests.java:101)<br/>    at junit.framework.TestCase.runBare(TestCase.java:128)<br/>    at org.springframework.test.ConditionalTestCase.runBare(ConditionalTestCase.java:79)<br/>    at junit.framework.TestResult$1.protect(TestResult.java:106)<br/>    at junit.framework.TestResult.runProtected(TestResult.java:124)<br/>    at junit.framework.TestResult.run(TestResult.java:109)<br/>    at junit.framework.TestCase.run(TestCase.java:120)<br/>    at junit.framework.TestSuite.runTest(TestSuite.java:230)<br/>    at junit.framework.TestSuite.run(TestSuite.java:225)<br/>    at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)<br/>    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)<br/>    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)<br/>    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)<br/>    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)<br/>    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)<br/>Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.jbpm.api.RepositoryService com.bankofamerica.crme.clientservice.service.impl.WorkflowServiceImpl.repositoryService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'repositoryService' defined in class path resource [eu/diversit/jbpm/spring/JbpmAutoSpringConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.jbpm.api.RepositoryService eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration.repositoryService()] threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jbpmProcessEngine' defined in class path resource [eu/diversit/jbpm/spring/JbpmAutoSpringConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.jbpm.api.ProcessEngine eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration.processEngine()] threw exception; nested exception is java.lang.NullPointerException<br/>    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:507)<br/>    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)<br/>    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:283)<br/>    ... 29 more<br/>Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'repositoryService' defined in class path resource [eu/diversit/jbpm/spring/JbpmAutoSpringConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.jbpm.api.RepositoryService eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration.repositoryService()] threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jbpmProcessEngine' defined in class path resource [eu/diversit/jbpm/spring/JbpmAutoSpringConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.jbpm.api.ProcessEngine eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration.processEngine()] threw exception; nested exception is java.lang.NullPointerException<br/>    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:572)<br/>    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:973)<br/>    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:879)<br/>    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)<br/>    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)<br/>    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)<br/>    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)<br/>    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)<br/>    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)<br/>    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:838)<br/>    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:780)<br/>    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:697)<br/>    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)<br/>    ... 31 more<br/>Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.jbpm.api.RepositoryService eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration.repositoryService()] threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jbpmProcessEngine' defined in class path resource [eu/diversit/jbpm/spring/JbpmAutoSpringConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.jbpm.api.ProcessEngine eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration.processEngine()] threw exception; nested exception is java.lang.NullPointerException<br/>    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)<br/>    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:561)<br/>    ... 43 more<br/>Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jbpmProcessEngine' defined in class path resource [eu/diversit/jbpm/spring/JbpmAutoSpringConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.jbpm.api.ProcessEngine eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration.processEngine()] threw exception; nested exception is java.lang.NullPointerException<br/>    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:572)<br/>    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:973)<br/>    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:879)<br/>    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)<br/>    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)<br/>    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)<br/>    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)<br/>    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)<br/>    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)<br/>    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:206)<br/>    at eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration$$EnhancerByCGLIB$$4875eca7.processEngine(<generated>)<br/>    at eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration.repositoryService(JbpmAutoSpringConfiguration.java:109)<br/>    at eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration$$EnhancerByCGLIB$$4875eca7.CGLIB$repositoryService$6(<generated>)<br/>    at eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration$$EnhancerByCGLIB$$4875eca7$$FastClassByCGLIB$$179e31cf.invoke(<generated>)<br/>    at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:167)<br/>    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:210)<br/>    at eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration$$EnhancerByCGLIB$$4875eca7.repositoryService(<generated>)<br/>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br/>    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)<br/>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)<br/>    at java.lang.reflect.Method.invoke(Unknown Source)<br/>    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:142)<br/>    ... 44 more<br/>Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.jbpm.api.ProcessEngine eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration.processEngine()] threw exception; nested exception is java.lang.NullPointerException<br/>    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)<br/>    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:561)<br/>    ... 65 more<br/>Caused by: java.lang.NullPointerException<br/>    at org.jbpm.pvm.internal.processengine.ProcessEngineImpl.checkDb(ProcessEngineImpl.java:152)<br/>    at org.jbpm.pvm.internal.processengine.SpringProcessEngine.create(SpringProcessEngine.java:70)<br/>    at org.jbpm.pvm.internal.cfg.ConfigurationImpl.buildProcessEngine(ConfigurationImpl.java:92)<br/>    at eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration.processEngine(JbpmAutoSpringConfiguration.java:46)<br/>    at eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration$$EnhancerByCGLIB$$4875eca7.CGLIB$processEngine$1(<generated>)<br/>    at eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration$$EnhancerByCGLIB$$4875eca7$$FastClassByCGLIB$$179e31cf.invoke(<generated>)<br/>    at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:167)<br/>    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:210)<br/>    at eu.diversit.jbpm.spring.JbpmAutoSpringConfiguration$$EnhancerByCGLIB$$4875eca7.processEngine(<generated>)<br/>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br/>    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)<br/>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)<br/>    at java.lang.reflect.Method.invoke(Unknown Source)<br/>    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:142)<br/>    ... 66 more</p></div>
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