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Re: Drools, Spring integration and JTA in container
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created by <a href="http://community.jboss.org/people/urdo2">bodi bajk</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/582792#582792">View the full discussion</a>
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<div class="jive-rendered-content"><p>Maybe the problem is in my configuration:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>     </p><p>.....</p><p>  </p><p><drools:ksession id="jpaSingleSessionCommandService" type="stateful" kbase="knowledgeBase"></p><p>                    <drools:configuration></p><p>                              <drools:work-item-handlers></p><p>                                        <!-- ....  --></p><p>                              </drools:work-item-handlers></p><p>                              <drools:jpa-persistence></p><p>                                        <drools:transaction-manager ref="transactionManager"/></p><p>                                        <drools:entity-manager-factory ref="entityManagerFactory"/></p><p>                              </drools:jpa-persistence></p><p>                    </drools:configuration></p><p>          </drools:ksession></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>  .....</p><p>  </p><p><jee:jndi-lookup id="entityManagerFactory" jndi-name="java:/org.drools.persistence.jpa.local"/></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager"></p><p>        <property name="transactionManagerName" value="java:/TransactionManager"/></p><p>        <property name="userTransactionName" value="UserTransaction"/></p><p></bean></p><p>.....</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>      </p><p>During deployment, application throws NullpointerException in class: SingleSessionCommandService</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>because when invoked initTransactionManager(Environment env) method:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>   </p><p>Object tm = env.get( EnvironmentName.TRANSACTION_MANAGER );</p><p>....</p><p>if ( tm.getClass().getName().toLowerCase().contains( "jpa" ) ) {</p><p>                    // configure spring for JPA and local transactions</p><p>                    cls = Class.forName( "org.drools.container.spring.beans.persistence.DroolsSpringJpaManager" );</p><p>                    con = cls.getConstructors()[0];</p><p>                    this.jpm =  ( JpaManager) con.newInstance( new Object[] { this.env } );</p><p>                } else {</p><p>                    // configure spring for JPA and distributed transactions  </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>                }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> jpm is null,</p><p> because tm.getClass().getName() is not true, in my case (org.springframework.transaction.jta.JtaTransactionManager)</p></div>
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