EJB Persistence no longer working

nucahx · **Joined:** Mon Nov 27, 2006 5:05 pm **Posts:** 4

I had some code that was working with the older version of hibernate. I was essentially using the JPA native calls for most things, and hibernate as my entity manager implementation.

However now that I have upgraded my code give me a null pointer exception on the following line.

Here's the code:

public AXMPersistenceHandler(String persistentUnit)
{
Ejb3Configuration cfg = new Ejb3Configuration();

Properties propertyMap = new Properties();

DatabasePreferences dbPrefs = (DatabasePreferences)BeanUtils.readBeanFromPrefs(AcesxConfig.class,AcesxConfig.DB_PREFS.getKey());
propertyMap = BeanUtils.beanToProperties(dbPrefs);
// Setting for hibernate and ant task

propertyMap.put("hibernate.connection.driver_class", dbPrefs.getDriver());
propertyMap.put("hibernate.connection.password", dbPrefs.getPassword());
propertyMap.put("hibernate.connection.url", "jdbc:mysql://" + dbPrefs.getHost() + "/" + dbPrefs.getDatabase());
propertyMap.put("hibernate.connection.username", dbPrefs.getUsername());

//Run ant to createDB
String binDir = System.getProperty(AxmConstants.BIN_DIR.toString());
AcesxAntRunner.runTarget(BIN_DIR, CREATE_AXM_DB, propertyMap, System.out);

// Hibernate only
propertyMap.put("hibernate.dialect",
"org.hibernate.dialect.MySQLDialect");
propertyMap.put("hibernate.show_sql", "false");
propertyMap.put("hibernate.hbm2ddl.auto", "update");

/*******************************************************/
// ERROR IS HERE
entityManagerFactory = Persistence.createEntityManagerFactory("AXM", propertyMap);
/*******************************************************/
entityManager = entityManagerFactory.createEntityManager(propertyMap);
eJBQueryFactory = new EJBQueryFactory(this);

}

Here's the exception:
[java] Exception in thread "AWT-EventQueue-0" javax.persistence.PersistenceException: java.lang.NullPointerException
[java] at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:247)
[java] at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:120)
[java] at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:37)
[java] at gov.nasa.acesx.app.manager.jpa.axm.dao.AXMPersistenceHandler.<init>(AXMPersistenceHandler.java:58)
[java] at gov.nasa.acesx.app.manager.jpa.PersistenceHandlerFactory.getAXMPersistenceHandler(PersistenceHandlerFactory.java:36)
[java] at gov.nasa.acesx.app.manager.ui.AXM$8.run(AXM.java:1274)
[java] at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
[java] at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:247)
[java] at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:120)
[java] at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:37)
[java] at gov.nasa.acesx.app.manager.jpa.axm.dao.AXMPersistenceHandler.<init>(AXMPersistenceHandler.java:58)
[java] at gov.nasa.acesx.app.manager.jpa.PersistenceHandlerFactory.getAXMPersistenceHandler(PersistenceHandlerFactory.java:36)
[java] at gov.nasa.acesx.app.manager.ui.AXM$8.run(AXM.java:1274)
[java] at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
[java] at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
[java] at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
[java] at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
[java] at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
[java] at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
[java] at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
[java] Caused by: java.lang.NullPointerException
[java] at org.hibernate.cfg.AnnotationConfiguration.orderAndFillHierarchy(AnnotationConfiguration.java:79)
[java] at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:288)
[java] at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:216)
[java] at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1112)
[java] at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1211)
[java] at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:154)
[java] at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:847)
[java] at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:178)
[java] at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:235)
[java] ... 12 more

LD SUCCESSFUL
al time: 9 seconds

maitscha · **Joined:** Sat May 20, 2006 3:49 am **Posts:** 78

I make it that way:

Code:

//First create the EJB3 Configuration
Ejb3Configuration config = new Ejb3Configuration();

//set the properties of my configuration
config.setProperties(p);

//add all POJOs to the configuration
ArrayList<Class> classes = (ArrayList<Class>)getPOJOs();
            for (Class c : classes) {
                config.addAnnotatedClass(c);
            }

//build the entityManagerFactory from  my ready config
EntityManagerFactory factory =
                (EntityManagerFactory)config.createEntityManagerFactory();

what I don't understand from your code:
1) You build a propertyMap, but doesn't use it anywhere
2) You get your EntityManagerFactory from the Persistence. What is Persistence?

nucahx · **Joined:** Mon Nov 27, 2006 5:05 pm **Posts:** 4

Ok here is all of the output from log4j when I turn on debug. It doesn't appear to have anything wrong, but if someone notices something it would be a great help.

C:\EclipseWorkspaces\ACES-X\build\bin>axm
Searching for build.xml ...
Buildfile: C:\EclipseWorkspaces\ACES-X\build\bin\build.xml

run_axm:
[java] org.xml.sax.SAXParseException: XML document structures must start and end within the same entity.
[java] Continuing ...
[java] org.xml.sax.SAXParseException: XML document structures must start and end within the same entity.
[java] Continuing ...
[java] running target: create.axm.db
[java] hibernate.connection.driver_class / com.mysql.jdbc.Driver
[java] showNext / false
[java] port / 3306
[java] username / aces
[java] hibernate.connection.username / aces
[java] hibernate.connection.url / jdbc:mysql://127.0.0.1/axm
[java] hibernate.connection.password / aces
[java] database / axm
[java] password / aces
[java] driver / com.mysql.jdbc.Driver
[java] host / 127.0.0.1

[java] create.axm.db:
[java] [sql] Executing commands
[java] [sql] 1 of 1 SQL statements executed successfully

[java] BUILD SUCCESSFUL
[java] Total time: 1 second
[java] 0 INFO org.hibernate.ejb.Version -- Hibernate EntityManager 3.2.0.GA
[java] 47 INFO org.hibernate.cfg.Environment -- Hibernate 3.2.1
[java] 63 INFO org.hibernate.cfg.Environment -- hibernate.properties not found
[java] 63 INFO org.hibernate.cfg.Environment -- Bytecode provider name : cglib
[java] 63 INFO org.hibernate.cfg.Environment -- using JDK 1.4 java.sql.Timestamp handling
[java] 234 DEBUG org.hibernate.ejb.Ejb3Configuration -- Look up for persistence unit: AXM
[java] 234 DEBUG org.hibernate.ejb.Ejb3Configuration -- Analyse of persistence.xml: file:/C:/EclipseWorkspaces/ACES-X/build/data/META-INF/persistence.xml
[java] 672 DEBUG org.hibernate.util.DTDEntityResolver -- trying to resolve system-id [http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd]
[java] 672 DEBUG org.hibernate.cfg.EJB3DTDEntityResolver -- recognized EJB3 ORM namespace; attempting to resolve on classpath under org/hibernate/ejb
[java] 672 DEBUG org.hibernate.cfg.EJB3DTDEntityResolver -- located [http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd] in classpath
[java] 828 DEBUG org.hibernate.ejb.packaging.PersistenceXmlLoader -- Persistent Unit name from persistence.xml: acesx_model_input
[java] 828 DEBUG org.hibernate.ejb.packaging.PersistenceXmlLoader -- Persistent Unit name from persistence.xml: AXM
[java] 828 DEBUG org.hibernate.ejb.Ejb3Configuration -- PersistenceMetadata [
[java] name: acesx_model_input
[java] jtaDataSource: null
[java] nonJtaDataSource: null
[java] transactionType: RESOURCE_LOCAL
[java] provider: org.hibernate.ejb.HibernatePersistence
[java] classes[
[java] gov.nasa.acesx.common.flight.Aircraft gov.nasa.acesx.common.flight.EngineType gov.nasa.acesx.common.flight.SeparationCategory gov.nasa.acesx.nasentity.tap.Airport gov.nasa.acesx.nasentity.t
ap.DefaultFix gov.nasa.acesx.nasentity.tap.DetailedFix gov.nasa.acesx.nasentity.tap.DetailedFixId gov.nasa.acesx.nasentity.tap.DetailedRunway gov.nasa.acesx.nasentity.tap.DetailedRunwayId go
v.nasa.acesx.nasentity.tap.DetailedRunwayFixLinkage gov.nasa.acesx.nasentity.tap.DetailedRunwayFixLinkageId gov.nasa.acesx.nasentity.tap.DetailedRunwayParameter gov.nasa.acesx.nasentity.tap.DetailedRunwayParameterId
gov.nasa.acesx.nasentity.tap.TerminalAirspace ]
[java] packages[
[java] ]
[java] mappingFiles[
[java] ]
[java] jarFiles[
[java] ]
[java] hbmfiles: 0
[java] properties[
[java] hibernate.connection.driver_class: com.mysql.jdbc.Driver
[java] showNext: false
[java] port: 3306
[java] hibernate.dialect: org.hibernate.dialect.MySQLDialect
[java] username: aces
[java] hibernate.connection.username: aces
[java] hibernate.hbm2ddl.auto: update
[java] hibernate.connection.url: jdbc:mysql://127.0.0.1/axm
[java] password: aces
[java] database: axm
[java] hibernate.show_sql: false
[java] hibernate.connection.password: aces
[java] host: 127.0.0.1
[java] driver: com.mysql.jdbc.Driver
[java] ]]
[java] 844 DEBUG org.hibernate.ejb.Ejb3Configuration -- Detect class: true; detect hbm: true
[java] 859 DEBUG org.hibernate.ejb.packaging.JarVisitor -- Searching mapped entities in jar/par: file:/C:/EclipseWorkspaces/ACES-X/build/data
[java] 859 DEBUG org.hibernate.ejb.Ejb3Configuration -- PersistenceMetadata [
[java] name: AXM
[java] jtaDataSource: null
[java] nonJtaDataSource: null
[java] transactionType: RESOURCE_LOCAL
[java] provider: org.hibernate.ejb.HibernatePersistence
[java] classes[
[java] gov.nasa.acesx.app.manager.jpa.axm.AcesxManagerData gov.nasa.acesx.app.manager.jpa.axm.AcesxContainer gov.nasa.acesx.app.manager.jpa.axm.AcesxManagerData gov.nasa.acesx.app.manager.jpa.axm
.Assignment gov.nasa.acesx.app.manager.jpa.axm.BiDirectionalPersistentData gov.nasa.acesx.app.manager.jpa.axm.ContainerAssignment gov.nasa.acesx.app.manager.jpa.axm.DataFile gov.nasa.acesx.app.manager.jpa.axm
.Job gov.nasa.acesx.app.manager.jpa.axm.LDCConfig gov.nasa.acesx.app.manager.jpa.axm.RunConfiguration gov.nasa.acesx.app.manager.jpa.axm.RunConfigurationFile gov.nasa.acesx.app.manager.jpa.axm.RunConfiguratio
nVariable gov.nasa.acesx.app.manager.jpa.axm.ScheduledJob ]
[java] packages[
[java] ]
[java] mappingFiles[
[java] ]
[java] jarFiles[
[java] ]
[java] hbmfiles: 0
[java] properties[
[java] hibernate.connection.driver_class: com.mysql.jdbc.Driver
[java] showNext: false
[java] port: 3306
[java] hibernate.dialect: org.hibernate.dialect.MySQLDialect
[java] username: aces
[java] hibernate.connection.username: aces
[java] hibernate.hbm2ddl.auto: update
[java] hibernate.connection.url: jdbc:mysql://127.0.0.1/axm
[java] password: aces
[java] database: axm
[java] hibernate.connection.password: aces
[java] hibernate.show_sql: false
[java] host: 127.0.0.1
[java] driver: com.mysql.jdbc.Driver
[java] ]]
[java] 875 DEBUG org.hibernate.ejb.Ejb3Configuration -- Detect class: true; detect hbm: true
[java] 875 DEBUG org.hibernate.ejb.packaging.JarVisitor -- Searching mapped entities in jar/par: file:/C:/EclipseWorkspaces/ACES-X/build/data
[java] 953 DEBUG org.hibernate.ejb.Ejb3Configuration -- Detect class: true; detect hbm: true
[java] 953 DEBUG org.hibernate.ejb.Ejb3Configuration -- Creating Factory: AXM
[java] 1063 DEBUG org.hibernate.cfg.AnnotationConfiguration -- Execute first pass mapping processing
[java] 1063 DEBUG org.hibernate.cfg.AnnotationConfiguration -- Process hbm files
[java] 1063 DEBUG org.hibernate.cfg.AnnotationConfiguration -- Process annotated classes
[java] Exception in thread "AWT-EventQueue-0" javax.persistence.PersistenceException: java.lang.NullPointerException
[java] at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:247)
[java] at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:120)
[java] at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:37)
[java] at gov.nasa.acesx.app.manager.jpa.axm.dao.AXMPersistenceHandler.<init>(AXMPersistenceHandler.java:58)
[java] at gov.nasa.acesx.app.manager.jpa.PersistenceHandlerFactory.getAXMPersistenceHandler(PersistenceHandlerFactory.java:36)
[java] at gov.nasa.acesx.app.manager.ui.AXM$8.run(AXM.java:1274)
[java] at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
[java] at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
[java] at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
[java] at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
[java] at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
[java] at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
[java] at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
[java] Caused by: java.lang.NullPointerException
[java] at org.hibernate.cfg.AnnotationConfiguration.orderAndFillHierarchy(AnnotationConfiguration.java:79)
[java] at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:288)
[java] at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:216)
[java] at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1112)
[java] at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1211)
[java] at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:154)
[java] at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:847)
[java] at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:178)
[java] at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:235)
[java] ... 12 more

BUILD SUCCESSFUL
Total time: 8 seconds
C:\EclipseWorkspaces\ACES-X\build\bin>

emmanuel · **Posted:** Mon Dec 04, 2006 4:57 pm

Can yuou post a minimal runnable test case reproducing the issue to JIRA, thanks