CODEWITHSUNDEEP
javahibernatejpatransactionsjta
Clay Banks
Clay Banks

Reputation: 4591

NamingException: Cannot create resource instance for jta.UserTransaction

I'm working with a Java program running on a Tomcat App server that is connected to a Teradata database that utilizes a UserTransaction & session-factory set in a hibernate configuration which connects to a datasource

<hibernate-configuration>
    <session-factory>
        <property name="show_sql">true</property>
        <property name="connection.datasource">java:comp/env/My_DB</property>
        <property name="jta.UserTransaction">java:comp/UserTransaction</property>
        ....

And a method to get the Transaction Context

public UserTransaction getTransactionContext()
    throws Exception
    {
        if (this.ut == null) {
            ut = (UserTransaction)new InitialContext().lookup("java:comp/UserTransaction");
        }
    return ut;
    }

However, InitialContext fails at lookup("java:comp/UserTransaction"); and returning:

03:27:37,530 ERROR [someServlet:555] Error in someMethod
javax.naming.NamingException: Cannot create resource instance
    at org.apache.naming.factory.ResourceEnvFactory.getObjectInstance(ResourceEnvFactory.java:117)
    at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)
    at org.apache.naming.NamingContext.lookup(NamingContext.java:843)
    at org.apache.naming.NamingContext.lookup(NamingContext.java:154)
    at org.apache.naming.NamingContext.lookup(NamingContext.java:831)
    at org.apache.naming.NamingContext.lookup(NamingContext.java:154)
    at org.apache.naming.NamingContext.lookup(NamingContext.java:831)
    at org.apache.naming.NamingContext.lookup(NamingContext.java:168)
    at org.apache.naming.SelectorContext.lookup(SelectorContext.java:158)

I'm very new with using jta.UserTransaction; the datasource mapping works as it should however I can't seem to get the UserTransaction returned - the naming convention itself matches between the code and session factory. Could anyone provide some possibilities on why this is failing from a high (or low) level perspective? I can provide additional info if this is too vague a question.

Upvotes: 1

Views: 1475

Answers (1)

Vlad Mihalcea
Vlad Mihalcea

Reputation: 154070

Tomcat is a web server not a JTA compliant application server (e.g. JBoss, WebLogic, Glassfish).

If you want to use JTA you need to use a JTA stand-along implementation, like:

Embedding a standalone transaction manager will give you access to a JTA transaction manager exposing UserTransactions through JNDI.

Upvotes: 2

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