Maven + Embedded EJB + JPA +EJB 3.0 getting Null name

[r_sudh]

Hrere is the code that starts up the embedded JBoss micro-container.

public void beforeIntegrationTests() {
 try {

 // Boot the JBoss Microcontainer with EJB3 settings, loads
 // ejb3-interceptors-aop.xml
 EJB3StandaloneBootstrap.boot(null);

 // EJB3StandaloneBootstrap.deployXmlResource("jboss-jms-beans.xml");
 // scan classpath for ejbs and MDBs
 EJB3StandaloneBootstrap.scanClasspath();

 // Add all EJBs found in the archive that has this file
 deployer = new EJB3StandaloneDeployer();
 deployer.getArchivesByResource().add("META-INF/persistence.xml");

 // Deploy everything we got
 deployer.create();
 deployer.start();

 // Create InitialContext from jndi.properties
 initialContext = new InitialContext();

 } catch (Exception ex) {
 throw new RuntimeException(ex);
 }
 }

I am getting the following stacktrace at

EJB3StandaloneBootstrap.scanClasspath();

java.lang.RuntimeException: java.lang.IllegalArgumentException: Null name
at brazos.permit.ejb.container.EJB3Container.beforeIntegrationTests(EJB3Container.java:52)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:604)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:470)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:564)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:830)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
at org.testng.TestRunner.runWorkers(TestRunner.java:678)
at org.testng.TestRunner.privateRun(TestRunner.java:624)
at org.testng.TestRunner.run(TestRunner.java:495)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:300)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:295)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:275)
at org.testng.SuiteRunner.run(SuiteRunner.java:190)
at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:792)
at org.testng.TestNG.runSuitesLocally(TestNG.java:765)
at org.testng.TestNG.run(TestNG.java:699)
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:73)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:122)
Caused by: java.lang.IllegalArgumentException: Null name
at org.jboss.dependency.plugins.AbstractController.getContext(AbstractController.java:114)
at org.jboss.kernel.plugins.dependency.AbstractKernelController.getContext(AbstractKernelController.java:94)
at org.jboss.ejb3.embedded.KernelErrors.validate(KernelErrors.java:96)
at org.jboss.ejb3.embedded.EJB3StandaloneBootstrap.scanClasspath(EJB3StandaloneBootstrap.java:281)
at brazos.permit.ejb.container.EJB3Container.beforeIntegrationTests(EJB3Container.java:38)
... 22 more

Here is my persistence.xml

<persistence xmlns="http://java.sun.com/xml/ns/persistence"
 version="1.0">
 <persistence-unit name="myPU">
 <jta-data-source>jdbc/MyDB</jta-data-source>
 <properties>
 <property name="toplink.ddl-generation"
 value="create-tables" />
 <property name="toplink.logging.level"
 value="FINER" />
 </properties>
 </persistence-unit>
</persistence>

I'm using maven and my folder structure is as follows:

srv/main/java
|__________META-INF
|________persistence.xml
src/test/java
|__________EJB2Container.java


Please let me know if there is anything else I can provide to help get this working.

Thanks!

[r_sudh]

Took me a while to get this but here it is:

The persistence.xml should look almost exactly like below:

<persistence>
 <persistence-unit name="myPU">
 <jta-data-source>java:/MyDB</jta-data-source>
 <properties>
 <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLInnoDBDialect" />
 <property name="hibernate.hbm2ddl.auto" value="update" />
 </properties>
 </persistence-unit>
</persistence>

Each tag should be in one single line with no line breaks. The Null name I was getting is most likely a bug in parsing this persistence.xml file with line breaks.

Also, since I was coming from a toplink background I found that the data source has to be name "java:/MyDB" as opposed to "jdbc/MyDB"

Then make sure you have the corresponding data source defined in embedded-jboss-beans.xml as below

<bean name="MyDB" class="org.jboss.resource.adapter.jdbc.local.LocalTxDataSource">
 <property name="driverClass">com.mysql.jdbc.Driver</property>
 <property name="connectionURL">jdbc:mysql://dev1:3306/mydb?user=root&password=hello</property>
 <property name="jndiName">java:/MyDB</property>
 <property name="transactionManager"><inject bean="TransactionManager"/></property>
 <property name="cachedConnectionManager"><inject bean="CachedConnectionManager"/></property>
 <property name="initialContextProperties"><inject bean="InitialContextProperties"/></property>
 </bean>

Finally here is a method that will test your code:

public void create() throws Exception {
 Owner owner = new Owner();
 OwnerData ownerData = new OwnerData();
 ownerData.setName("Test Company");
 ownerData.setContact("Richard");
 ownerData.setPhone("979-777-7777");
 owner.setOwnerData(ownerData);

 EJB3StandaloneBootstrap.boot(null);
 EJB3StandaloneBootstrap.scanClasspath();

 InitialContext ctx = getInitialContext();

 OwnerDAO dao = (OwnerDAO) ctx.lookup("OwnerDAOBean/local");
 dao.create(owner);
 EJB3StandaloneBootstrap.shutdown();
 }

I was having problems trying to get the lookup to work when the container was being started by a BeforeGroups method. But I've save that for another post. Once you get it all working it's pretty cool :)