Spring IllegalStateException: A JTA EntityManager cannot use getTransaction()
java, spring, websphere
Solution
The problem is your configuration. You have hibernate configured for JTA.
<property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.WebSphereExtendedJTATransactionLookup" />
Whereas you are using local transactions instead of distributed transactions.
at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:380)
You have 2 possible solutions
- remove the `JpaTransactionManager` and replace it with a JTA transaction manager
- remove the remove the `hibernate.transaction.manager_lookup_class` from the hibernate settings.
If you don't really need distributed transactions option 2 is the easiest, if you need distributed transactions simply adding `<tx:jta-transaction-manager />` will setup a proper JTA tx manager for your environment. Remove the definition for the `JpaTransactionManager`.
Update:
Your configuration is flawed in 2 ways.
- Your EntityManager configuration already contains a jndi lookup for the datasource, which you override in your applicationContext by configuring a local datasource
- You have both a `<tx:jta-transaction-manager />` and `JpaTransactionManager` which one do you want to use? At the moment the latter is overriding the first one.
Create 2 seperate configurations one for local testing and one for production using JTA en JNDI lookups. (Preferable your testing code only overrides the beans necessary).
Problem
So after a big refactoring project, I am left with this exception and am unsure as how to correct it. It's dealing with some code that I did not write and I am unfamiliar with how it all works. There are other questions out there dealing with this exception, but none seem to fit my situation. The class which uses `EntityManager` is `SpecialClaimsCaseRepositoryImpl`: ``` package com.redacted.sch.repository.jpa; //Imports @Repository public class SpecialClaimsCaseRepositoryImpl extends SimpleJpaRepository<SpecialClaimsCaseDto, SpecialClaimsCaseDto.Id> implements SpecialClaimsCaseRepository{ @PersistenceContext(unitName = "schManager") private EntityManager em; //Some autogenerated methods public void setEntityManager(EntityManager em) { this.em = em; } public EntityManager getEntityManager() { return em; } } ``` Persistence.xml: ``` <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0"> <persistence-unit name="schManager"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <jta-data-source>jdbc/SCH_DS</jta-data-source> <class>com.redacted.sch.domain.model.SpecialClaimsCaseDto</class> <properties> <property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.WebSphereExtendedJTATransactionLookup" /> <property name="hibernate.cache.region.factory_class" value="net.sf.ehcache.hibernate.SingletonEhCacheRegionFactory" /> <property name="hibernate.cache.use_query_cache" value="true" /> <property name="hibernate.cache.use_second_level_cache" value="true" /> <property name="hibernate.dialect" value="com.bcbsks.hibernate.dialect.DB2Dialect" /> <property name="hibernate.format_sql" value="true" /> <property name="hibernate.generate_statistics" value="false" /> <property name="hibernate.jdbc.use_scrollable_resultset" value="true" /> </properties> </persistence-unit> </persistence> ``` sch_model_spring.xml: ``` <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <context:component-scan base-package="com.redacted.repository.jpa, com.redacted.sch.domain.model, com.redacted.sch.repository.jpa, com.redacted.sch.service, com.redacted.sch.service.impl"/> <tx:annotation-driven /> <tx:jta-transaction-manager /> <!-- Data source used for testing --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="com.ibm.db2.jcc.DB2Driver" /> <property name="url" value="jdbc:db2:redacted.redacted.com" /> <property name="username" value="redacted" /> <property name="password" value="redacted" /> </bean> <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <property name="persistenceUnitName" value="schManager" /> <property name="dataSource" ref="dataSource" /> </bean> <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref="entityManagerFactory" /> </bean> </beans> ``` And here's my project structure: > Here's a portion of the stack trace, with the full trace at this fpaste ``` Caused by: java.lang.IllegalStateException: A JTA EntityManager cannot use getTransaction() at org.hibernate.ejb.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:985) at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:67) at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:380) ... 80 more ``` I'm a total noob here, so if any other information is needed just ask and I'll update. Thanks for all the help!