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Author Message
rosco
 Post subject: NullPointer with Hibernate/AspectJ CGLIB
PostPosted: Wed Sep 01, 2004 2:09 pm 
Newbie

Joined: Wed Sep 01, 2004 2:03 pm
Posts: 7
Hibernate version: 2.1

Mapping documents: N/A

Code between sessionFactory.openSession() and session.close(): N/A

Full stack trace of any exception that occurs:

13:57:18,207 INFO [SessionFactoryImpl] building session factory
13:57:18,504 INFO [STDOUT] java.lang.NullPointerException
13:57:18,504 INFO [STDOUT] at com.trifecta.buildserver.beans.User.setPassword_aroundBody1$advice(User.java:121)
13:57:18,504 INFO [STDOUT] at com.trifecta.buildserver.beans.User.setPassword(User.java)
13:57:18,504 INFO [STDOUT] at com.trifecta.buildserver.beans.User$$BulkBeanByCGLIB$$a639c238.setPropertyValues(<generated>)
13:57:18,504 INFO [STDOUT] at net.sf.hibernate.util.ReflectHelper.getBulkBean(ReflectHelper.java:141)
13:57:18,504 INFO [STDOUT] at net.sf.hibernate.persister.AbstractEntityPersister.<init>(AbstractEntityPersister.java:754)
13:57:18,504 INFO [STDOUT] at net.sf.hibernate.persister.EntityPersister.<init>(EntityPersister.java:715)
13:57:18,504 INFO [STDOUT] at net.sf.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:41)
13:57:18,504 INFO [STDOUT] at net.sf.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:137)
13:57:18,504 INFO [STDOUT] at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:750)
13:57:18,504 INFO [STDOUT] at org.springframework.orm.hibernate.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:417)
13:57:18,504 INFO [STDOUT] at org.springframework.orm.hibernate.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:355)
13:57:18,504 INFO [STDOUT] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:718)
13:57:18,504 INFO [STDOUT] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:213)
13:57:18,504 INFO [STDOUT] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:159)
13:57:18,504 INFO [STDOUT] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:172)
13:57:18,504 INFO [STDOUT] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:272)
13:57:18,504 INFO [STDOUT] at org.springframework.web.context.support.XmlWebApplicationContext.refresh(XmlWebApplicationContext.java:131)
13:57:18,504 INFO [STDOUT] at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:154)
13:57:18,504 INFO [STDOUT] at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:95)
13:57:18,504 INFO [STDOUT] at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:48)
13:57:18,504 INFO [STDOUT] at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3805)
13:57:18,504 INFO [STDOUT] at org.apache.catalina.core.StandardContext.start(StandardContext.java:4321)
13:57:18,504 INFO [STDOUT] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:823)
13:57:18,504 INFO [STDOUT] at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
13:57:18,504 INFO [STDOUT] at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
13:57:18,504 INFO [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
13:57:18,504 INFO [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
13:57:18,504 INFO [STDOUT] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
13:57:18,504 INFO [STDOUT] at java.lang.reflect.Method.invoke(Method.java:324)
13:57:18,504 INFO [STDOUT] at org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
13:57:18,504 INFO [STDOUT] at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:109)
13:57:18,504 INFO [STDOUT] at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
13:57:18,520 INFO [STDOUT] at org.apache.catalina.core.StandardContext.init(StandardContext.java:5412)
13:57:18,520 INFO [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
13:57:18,520 INFO [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
13:57:18,520 INFO [STDOUT] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
13:57:18,520 INFO [STDOUT] at java.lang.reflect.Method.invoke(Method.java:324)
13:57:18,520 INFO [STDOUT] at org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:109)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
13:57:18,520 INFO [STDOUT] at org.jboss.web.tomcat.tc5.TomcatDeployer.performDeployInternal(TomcatDeployer.java:286)
13:57:18,520 INFO [STDOUT] at org.jboss.web.tomcat.tc5.TomcatDeployer.performDeploy(TomcatDeployer.java:70)
13:57:18,520 INFO [STDOUT] at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:306)
13:57:18,520 INFO [STDOUT] at org.jboss.web.WebModule.startModule(WebModule.java:62)
13:57:18,520 INFO [STDOUT] at org.jboss.web.WebModule.startService(WebModule.java:40)
13:57:18,520 INFO [STDOUT] at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:271)
13:57:18,520 INFO [STDOUT] at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:221)
13:57:18,520 INFO [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
13:57:18,520 INFO [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
13:57:18,520 INFO [STDOUT] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
13:57:18,520 INFO [STDOUT] at java.lang.reflect.Method.invoke(Method.java:324)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
13:57:18,520 INFO [STDOUT] at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:837)
13:57:18,520 INFO [STDOUT] at $Proxy17.start(Unknown Source)
13:57:18,520 INFO [STDOUT] at org.jboss.system.ServiceController.start(ServiceController.java:367)
13:57:18,520 INFO [STDOUT] at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
13:57:18,520 INFO [STDOUT] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
13:57:18,520 INFO [STDOUT] at java.lang.reflect.Method.invoke(Method.java:324)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
13:57:18,520 INFO [STDOUT] at $Proxy31.start(Unknown Source)
13:57:18,520 INFO [STDOUT] at org.jboss.web.AbstractWebContainer.start(AbstractWebContainer.java:313)
13:57:18,520 INFO [STDOUT] at org.jboss.deployment.MainDeployer.start(MainDeployer.java:836)
13:57:18,520 INFO [STDOUT] at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:645)
13:57:18,520 INFO [STDOUT] at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:608)
13:57:18,520 INFO [STDOUT] at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)
13:57:18,520 INFO [STDOUT] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
13:57:18,520 INFO [STDOUT] at java.lang.reflect.Method.invoke(Method.java:324)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
13:57:18,520 INFO [STDOUT] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
13:57:18,535 INFO [STDOUT] at $Proxy7.deploy(Unknown Source)
13:57:18,535 INFO [STDOUT] at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:304)
13:57:18,535 INFO [STDOUT] at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:478)
13:57:18,535 INFO [STDOUT] at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:201)
13:57:18,535 INFO [STDOUT] at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:274)
13:57:18,535 INFO [STDOUT] at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:271)
13:57:18,535 INFO [STDOUT] at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:221)
13:57:18,535 INFO [STDOUT] at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
13:57:18,535 INFO [STDOUT] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
13:57:18,535 INFO [STDOUT] at java.lang.reflect.Method.invoke(Method.java:324)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
13:57:18,535 INFO [STDOUT] at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:837)
13:57:18,535 INFO [STDOUT] at $Proxy0.start(Unknown Source)
13:57:18,535 INFO [STDOUT] at org.jboss.system.ServiceController.start(ServiceController.java:367)
13:57:18,535 INFO [STDOUT] at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
13:57:18,535 INFO [STDOUT] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
13:57:18,535 INFO [STDOUT] at java.lang.reflect.Method.invoke(Method.java:324)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
13:57:18,535 INFO [STDOUT] at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
13:57:18,535 INFO [STDOUT] at $Proxy4.start(Unknown Source)
13:57:18,535 INFO [STDOUT] at org.jboss.deployment.SARDeployer.start(SARDeployer.java:251)
13:57:18,535 INFO [STDOUT] at org.jboss.deployment.MainDeployer.start(MainDeployer.java:836)
13:57:18,535 INFO [STDOUT] at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:645)
13:57:18,535 INFO [STDOUT] at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:608)
13:57:18,535 INFO [STDOUT] at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:592)
13:57:18,535 INFO [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
13:57:18,535 INFO [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
13:57:18,535 INFO [STDOUT] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
13:57:18,551 INFO [STDOUT] at java.lang.reflect.Method.invoke(Method.java:324)
13:57:18,551 INFO [STDOUT] at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
13:57:18,551 INFO [STDOUT] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
13:57:18,551 INFO [STDOUT] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
13:57:18,551 INFO [STDOUT] at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
13:57:18,551 INFO [STDOUT] at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
13:57:18,551 INFO [STDOUT] at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
13:57:18,613 INFO [STDOUT] at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
13:57:18,613 INFO [STDOUT] at $Proxy5.deploy(Unknown Source)
13:57:18,613 INFO [STDOUT] at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:407)
13:57:18,613 INFO [STDOUT] at org.jboss.system.server.ServerImpl.start(ServerImpl.java:311)
13:57:18,613 INFO [STDOUT] at org.jboss.Main.boot(Main.java:145)
13:57:18,613 INFO [STDOUT] at org.jboss.Main$1.run(Main.java:399)
13:57:18,613 INFO [STDOUT] at java.lang.Thread.run(Thread.java:534)

Name and version of the database you are using: MySQL Max 4.x

Debug level Hibernate log excerpt:


I have an aspect which advises 2 setter methods of my User class. This stacktrace is what happens when the woven .class file is modified by Hibernate when JBoss starts.

Here is the Aspect:

public aspect EncryptionAspect {

public pointcut passwordOperations(String password) :
execution(public void *.set*Password(String)) && args(password);

void around(String password) : passwordOperations(password)
{
try
{
MessageDigest md = MessageDigest.getInstance("MD5");
password = new String(md.digest(password.getBytes()));
}
catch(Exception e)
{
e.printStackTrace();
System.exit(0);
}

proceed(password);
}
}

The User class is a straight forward basic javabean w/ getters/setters etc.

Anyone know why this is happening, how to fix it?

Thanks!!!
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 Profile  
 
rosco
 Post subject:
PostPosted: Wed Sep 01, 2004 2:13 pm 
Newbie

Joined: Wed Sep 01, 2004 2:03 pm
Posts: 7
Follow up:

When I comment out this section of the advice:

void around(String password) : passwordOperations(password)
{
/* try
{
MessageDigest md = MessageDigest.getInstance("MD5");
password = new String(md.digest(password.getBytes()));
}
catch(Exception e)
{
e.printStackTrace();
System.exit(0);
}
*/
proceed(password);
}


... everything starts fine (no execeptions on startup), but my passwords do not get encrypted. This must be caused by something between the /* */ but I don't know what. Am I doing something stupid here?

Thanks!
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 Profile  
 
rosco
 Post subject:
PostPosted: Wed Sep 01, 2004 2:38 pm 
Newbie

Joined: Wed Sep 01, 2004 2:03 pm
Posts: 7
Answer:

Here is what I got to work:

void around(String password) : passwordOperations(password)
{
try
{
MessageDigest md = MessageDigest.getInstance("MD5");
password = new String(md.digest(password.getBytes()));
}
catch(Exception e)
{
}
finally
{
proceed(password);
}
}


It seems that the e.printStackTrace(); inside the catch block wasn't meshing too well with Hibernate/AspectJ.

Still don't quite understand the full reasoning behind this solution.

Feel free to comment.
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