I have a web application. I use JPA (Hibernate as vendor), the application run on glassfish server. After several minutes using the application (including operations that retrieve and save entities to the DB) i get this error:
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Could not open connection
root cause
javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Could not open connection
root cause
org.hibernate.exception.GenericJDBCException: Could not open connection
root cause
java.sql.SQLException: Error in allocating a connection. Cause: java.lang.RuntimeException: Got exception during XAResource.start:
root cause
javax.resource.spi.ResourceAllocationException: Error in allocating a connection. Cause: java.lang.RuntimeException: Got exception during XAResource.start:
root cause
com.sun.appserv.connectors.internal.api.PoolingException: java.lang.RuntimeException: Got exception during XAResource.start:
root cause
com.sun.appserv.connectors.internal.api.PoolingException: java.lang.RuntimeException: Got exception during XAResource.start:
root cause
java.lang.RuntimeException: Got exception during XAResource.start:
root cause
javax.transaction.xa.XAException: com.sun.appserv.connectors.internal.api.PoolingException: javax.resource.spi.LocalTransactionException: No operations allowed after connection closed.
I am using JTA transaction manager. Every function in my Service layer has the @Transactional
annotation. This is my the persistence.xml:
<?xml version="1.0" encoding="UTF-8"?>
<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_2_0.xsd"
version="2.0">
<persistence-unit name="myPU" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>jdbc/myDataSource</jta-data-source>
<class>org.company.entities.User</class>
<!-- OTHER CLASSES -->
<exclude-unlisted-classes />
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect" />
<property name="hibernate.transaction.flush_before_completion" value="true" />
<property name="hibernate.show_sql" value="false" />
<property name="hibernate.connection.release_mode" value="auto"/>
<property name="hibernate.current_session_context_class" value="jta"/>
<property name="hibernate.transaction.auto_close_session" value="true"/>
<!-- <property name="hibernate.transaction.flush_before_completion" value="true"/> -->
<!-- <property name="hibernate.transaction.factory_class" value="org.hibernate.transaction.JTATransactionFactory"/> -->
</properties>
</persistence-unit>
</persistence>
I am using this mysql connector: mysql-connector-java-5.1.22-bin.jar
Why am i getting this error? Where am i or JPA is closing the connection?
EDIT: Removed details of class "BaseEntityDAO" - not relevant. My data source is configured via the admin console of the glassfish:
In the JDBC Connection pool:
- Resource Type: javax.sql.DataSource
- DataSource class name: com.mysql.jdbc.jdbc2.optional.MysqlDataSource
- Im using the default Pool settings of glassfish - don't know if it matters but one of the default settings is "Idle Timeout" and its default value is 300 sec.
- In the Additional Properties i hve the following properties: portNumber, databaseName, serverName, user, password
In the JDBC Resource:
- JNDI Name: jdbc/myDataSource
- Pool Name: The pool name of the above JDBC Connection Pool
This is my spring configuration:
<jee:jndi-lookup id="entityManagerFactory" jndi-name="persistence/myPersistenceUnit" />
<bean
class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor">
<property name="persistenceUnits">
<map>
<entry key="myPersistenceUnit" value="persistence/myPersistenceUnit" />
</map>
</property>
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager" />
<jee:jndi-lookup id="dataSource" jndi-name="jdbc/myDataSource" />
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<constructor-arg ref="dataSource" />
</bean>