JBPM with Spring JPA transaction Manager

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Gobinath Narayanasamy

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Jan 5, 2020, 10:52:59 AM1/5/20

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Hi,

I am trying to integrate JBPM 7.9 in my spring boot application (version 1.5.19). I am having jbpm-spring-boot-starter-basic (version # 7.9.0.Final) as the maven dependency. I need to use Spring JPA Transaction manager instead of Spring JTA transaction manager. I tried providing the Spring JPA Transaction manager as a bean in my Auto Configuration class.

@Bean

@ConditionalOnMissingBean(name = "transactionManager")

public PlatformTransactionManager transactionManager() {

JpaTransactionManager txManager = new JpaTransactionManager();

txManager.setDataSource(this.dataSource);

txManager.setEntityManagerFactory(entityManagerFactory());

this.transactionManager=txManager;

return txManager;

}

However, I am getting the following error. Cannot we use Spring JPA Transaction Manager in JBPM?

2020-01-05 09:31:32.150 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Loading kie.conf from jar:file:/C:/abcd/efgh/mvn_repo/org/kie/kie-ci/7.9.0.Final/kie-ci-7.9.0.Final.jar!/META-INF/kie.conf in classloader sun.misc.Launcher$AppClassLoader@18b4aac2

2020-01-05 09:31:32.152 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Adding Service org.kie.scanner.KieScannerFactoryServiceImpl

2020-01-05 09:31:32.154 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Adding Service org.kie.scanner.MavenClassLoaderResolver

2020-01-05 09:31:32.154 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Loading kie.conf from jar:file:/C:/abcd/efgh/mvn_repo/org/drools/drools-decisiontables/7.9.0.Final/drools-decisiontables-7.9.0.Final.jar!/META-INF/kie.conf in classloader sun.misc.Launcher$AppClassLoader@18b4aac2

2020-01-05 09:31:32.157 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Adding Service org.drools.decisiontable.DecisionTableProviderImpl

2020-01-05 09:31:32.157 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Loading kie.conf from jar:file:C:/abcd/efgh/mvn_repo/org/kie/kie-internal/7.9.0.Final/kie-internal-7.9.0.Final.jar!/META-INF/kie.conf in classloader sun.misc.Launcher$AppClassLoader@18b4aac2

2020-01-05 09:31:32.159 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Adding Service org.kie.internal.services.KieAssemblersImpl

2020-01-05 09:31:32.160 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Adding Service org.kie.internal.services.KieRuntimesImpl

2020-01-05 09:31:32.161 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Adding Service org.kie.internal.services.KieWeaversImpl

2020-01-05 09:31:32.162 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Adding Service org.kie.internal.services.KieBeliefsImpl

2020-01-05 09:31:32.163 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Loading kie.conf from jar:file:/C:/abcd/efgh/mvn_repo/org/drools/drools-core/7.9.0.Final/drools-core-7.9.0.Final.jar!/META-INF/kie.conf in classloader sun.misc.Launcher$AppClassLoader@18b4aac2

2020-01-05 09:31:32.165 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Adding Service org.drools.core.io.impl.ResourceFactoryServiceImpl

2020-01-05 09:31:32.167 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Adding Service org.drools.core.marshalling.impl.MarshallerProviderImpl

2020-01-05 09:31:32.168 INFO 19064 --- [ main] o.k.a.i.utils.ServiceDiscoveryImpl : Adding Service org.drools.core.concurrent.ExecutorProviderImpl

2020-01-05 09:31:35.688 WARN 19064 --- [ main] o.k.s.p.KieSpringTransactionManager : Unable to begin transaction

org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.IllegalStateException: A JTA EntityManager cannot use getTransaction()

at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:431) ~[spring-orm-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) ~[spring-tx-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.kie.spring.persistence.KieSpringTransactionManager.begin(KieSpringTransactionManager.java:53) ~[kie-spring-7.9.0.Final.jar:7.9.0.Final]

at org.jbpm.services.task.persistence.TaskTransactionInterceptor.execute(TaskTransactionInterceptor.java:72) [jbpm-human-task-jpa-7.9.0.Final.jar:7.9.0.Final]

at org.jbpm.services.task.persistence.TaskTransactionInterceptor.execute(TaskTransactionInterceptor.java:49) [jbpm-human-task-jpa-7.9.0.Final.jar:7.9.0.Final]

at org.drools.core.command.impl.AbstractInterceptor.executeNext(AbstractInterceptor.java:39) [drools-core-7.9.0.Final.jar:7.9.0.Final]

at org.drools.persistence.jta.TransactionLockInterceptor.execute(TransactionLockInterceptor.java:73) [drools-persistence-api-7.9.0.Final.jar:7.9.0.Final]

at org.drools.persistence.jta.TransactionLockInterceptor.execute(TransactionLockInterceptor.java:45) [drools-persistence-api-7.9.0.Final.jar:7.9.0.Final]

at org.drools.core.command.impl.AbstractInterceptor.executeNext(AbstractInterceptor.java:39) [drools-core-7.9.0.Final.jar:7.9.0.Final]

at org.drools.persistence.jpa.OptimisticLockRetryInterceptor.internalExecute(OptimisticLockRetryInterceptor.java:102) [drools-persistence-jpa-7.9.0.Final.jar:7.9.0.Final]

at org.drools.persistence.jpa.OptimisticLockRetryInterceptor.execute(OptimisticLockRetryInterceptor.java:83) [drools-persistence-jpa-7.9.0.Final.jar:7.9.0.Final]

at org.drools.persistence.jpa.OptimisticLockRetryInterceptor.execute(OptimisticLockRetryInterceptor.java:44) [drools-persistence-jpa-7.9.0.Final.jar:7.9.0.Final]

at org.drools.core.command.impl.AbstractInterceptor.executeNext(AbstractInterceptor.java:39) [drools-core-7.9.0.Final.jar:7.9.0.Final]

at org.jbpm.runtime.manager.impl.error.ExecutionErrorHandlerInterceptor.internalExecute(ExecutionErrorHandlerInterceptor.java:66) [jbpm-runtime-manager-7.9.0.Final.jar:7.9.0.Final]

at org.jbpm.runtime.manager.impl.error.ExecutionErrorHandlerInterceptor.execute(ExecutionErrorHandlerInterceptor.java:52) [jbpm-runtime-manager-7.9.0.Final.jar:7.9.0.Final]

at org.jbpm.runtime.manager.impl.error.ExecutionErrorHandlerInterceptor.execute(ExecutionErrorHandlerInterceptor.java:29) [jbpm-runtime-manager-7.9.0.Final.jar:7.9.0.Final]

at org.drools.core.runtime.InternalLocalRunner.execute(InternalLocalRunner.java:37) [drools-core-7.9.0.Final.jar:7.9.0.Final]

at org.drools.core.runtime.InternalLocalRunner.execute(InternalLocalRunner.java:41) [drools-core-7.9.0.Final.jar:7.9.0.Final]

at org.jbpm.services.task.commands.TaskCommandExecutorImpl.execute(TaskCommandExecutorImpl.java:49) [jbpm-human-task-core-7.9.0.Final.jar:7.9.0.Final]

at org.jbpm.services.task.impl.TaskDeadlinesServiceImpl.initialize(TaskDeadlinesServiceImpl.java:457) [jbpm-human-task-core-7.9.0.Final.jar:7.9.0.Final]

at org.jbpm.services.task.HumanTaskConfigurator.getTaskService(HumanTaskConfigurator.java:166) [jbpm-human-task-core-7.9.0.Final.jar:7.9.0.Final]

at com.example.jbpm.JbpmdemoAutoConfiguration.runtimeDataService(JbpmdemoAutoConfiguration.java:222) [classes/:na]

at com.example.jbpm.JbpmdemoAutoConfiguration$$EnhancerBySpringCGLIB$$11222f4e.CGLIB$runtimeDataService$8(<generated>) [classes/:na]

at com.example.jbpm.JbpmdemoAutoConfiguration$$EnhancerBySpringCGLIB$$11222f4e$$FastClassBySpringCGLIB$$9446b557.invoke(<generated>) [classes/:na]

at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) [spring-core-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:358) [spring-context-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at com.example.jbpm.JbpmdemoAutoConfiguration$$EnhancerBySpringCGLIB$$11222f4e.runtimeDataService(<generated>) [classes/:na]

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_212]

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_212]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_212]

at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_212]

at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) [spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) [spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173) [spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067) [spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) [spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) [spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) [spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) [spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) [spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) [spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) [spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) [spring-context-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) [spring-context-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]

at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]

at com.example.jbpm.JbpmdemoApplication.main(JbpmdemoApplication.java:19) [classes/:na]

Caused by: java.lang.IllegalStateException: A JTA EntityManager cannot use getTransaction()

at org.hibernate.jpa.spi.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:1333) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]

at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:67) ~[spring-orm-4.3.13.RELEASE.jar:4.3.13.RELEASE]

at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:380) ~[spring-orm-4.3.13.RELEASE.jar:4.3.13.RELEASE]

... 50 common frames omitted

2020-01-05 09:31:35.690 WARN 19064 --- [ main] o.j.s.t.p.TaskTransactionInterceptor : Could not commit session

java.lang.RuntimeException: Unable to begin transaction

at org.kie.spring.persistence.KieSpringTransactionManager.begin(KieSpringTransactionManager.java:61) ~[kie-spring-7.9.0.Final.jar:7.9.0.Final]