Hi.
I am receiving a NullPointerException when I try to get an EntityManager
in a jUnit test.
What am I missing?
The attached files is organised like this:
pom.xml
src/main/java/domain/Animal.java
src/test/java/domain/OpenJPATest.java
src/test/resources/META-INF/persistence.xml
The test is run with `mvn test`.
The stacktrace is in the attached file domain.OpenJPATest.txt
--
Martin Olsen
[EMAIL PROTECTED]
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>domain</groupId>
<artifactId>simple</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>Simple</name>
<description>This is a simple OpenJPA project</description>
<dependencies>
<dependency>
<groupId>org.apache.openjpa</groupId>
<artifactId>openjpa-persistence</artifactId>
<version>1.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.openjpa</groupId>
<artifactId>openjpa-jdbc</artifactId>
<version>1.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.openjpa</groupId>
<artifactId>openjpa-persistence-jdbc</artifactId>
<version>1.2.0</version>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>8.3-603.jdbc4</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.5</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
package domain;
public class Animal {
private String name;
//private int legs;
public Animal() {
}
public Animal( String name, int legs ) {
this.name = name;
//this.legs = legs;
}
}
package domain;
import junit.framework.TestCase;
import java.sql.*;
import java.util.Properties;
import org.apache.openjpa.persistence.*;
import org.apache.openjpa.*;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
public class OpenJPATest extends TestCase {
EntityManagerFactory emf;
protected void setUp() {
emf = Persistence.createEntityManagerFactory( "openjpa-pu" );
System.out.println( "emf:" + emf.toString() );
}
protected void tearDown() {
emf.close();
}
public void testOpenJPA() {
System.out.println( "isOpen:" + emf.isOpen() );
EntityManager em = emf.createEntityManager();
System.out.println( "em:" + em.toString() );
em.close();
}
}
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"; version="1.0">
<persistence-unit name="openjpa-pu" transaction-type="RESOURCE_LOCAL"><!--JTA,RESOURCE_LOCAL-->
<!--<jar-file>/home/martin/Source/java/openjpa/simple/target/classes</jar-file>-->
<class>domain.Animal</class>
<properties>
<property name="openjpa.ConnectionURL" value="jdbc:postgresql:animals" />
<property name="openjpa.ConnectionDriverName" value="org.postgresql.Driver" />
<property name="openjpa.ConnectionUserName" value="animals" />
<property name="openjpa.ConnectionPassword" value="animalsanimals" />
<!--<property name="openjpa.Log" value="DefaultLevel=WARN, Tool=INFO" />-->
<property name="openjpa.Log" value="SQL=TRACE" />
</properties>
</persistence-unit>
</persistence>
-------------------------------------------------------------------------------
Test set: domain.OpenJPATest
-------------------------------------------------------------------------------
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.92 sec <<<
FAILURE!
testOpenJPA(domain.OpenJPATest) Time elapsed: 0.894 sec <<< ERROR!
<openjpa-1.2.0-r422266:683325 nonfatal general error>
org.apache.openjpa.persistence.PersistenceException: null
at
org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:196)
at
org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:142)
at
org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:192)
at
org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:145)
at
org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:56)
at domain.OpenJPATest.testOpenJPA(OpenJPATest.java:28)
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 junit.framework.TestCase.runTest(TestCase.java:168)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:232)
at junit.framework.TestSuite.run(TestSuite.java:227)
at
org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:79)
at
org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:62)
at
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:140)
at
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:127)
at org.apache.maven.surefire.Surefire.run(Surefire.java:177)
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.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:338)
at
org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:997)
Caused by: java.lang.NullPointerException
at
org.apache.openjpa.enhance.ManagedClassSubclasser.setDetachedState(ManagedClassSubclasser.java:299)
at
org.apache.openjpa.enhance.ManagedClassSubclasser.configureMetaData(ManagedClassSubclasser.java:217)
at
org.apache.openjpa.enhance.ManagedClassSubclasser.prepareUnenhancedClasses(ManagedClassSubclasser.java:139)
at
org.apache.openjpa.kernel.AbstractBrokerFactory.loadPersistentTypes(AbstractBrokerFactory.java:310)
at
org.apache.openjpa.kernel.AbstractBrokerFactory.initializeBroker(AbstractBrokerFactory.java:228)
at
org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:190)
... 28 more
