java.lang.NullPointerException: <no message>

Creepy Gnome · **Joined:** Mon Sep 17, 2007 5:31 pm **Posts:** 8

I am new to hibernate, and I am using the Hibernate Tools reference guide for version 3.2.0 Beta 10. I have setup using the jTDS SQL Server drivers (since the microsoft provided ones don't seem to work with the tools). During the code generation process it is going along for a while and then I get a null pointer exception stating "<no message>". The stack trace it provided is below.

I setup the config files via the wizards using only required information and leave the rest to utilize default settings.

If there is a log file someplace I can provide, please let me know where it is and how you prefer to have them posted.

Any help is welcomed,

-Creepy

Hibernate version: Hibernate Core 3.2.5.ga
Mapping documents: Used Default settings
Code between sessionFactory.openSession() and session.close(): Didn't get this far

Full stack trace of any exception that occurs:

Code:

java.lang.NullPointerException: <no message>
java.lang.NullPointerException
   at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate.getLocation(CodeGenerationLaunchDelegate.java:286)
   at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate.access$0(CodeGenerationLaunchDelegate.java:285)
   at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate$1.execute(CodeGenerationLaunchDelegate.java:232)
   at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:65)
   at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:88)
   at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate.runExporters(CodeGenerationLaunchDelegate.java:228)
   at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate.launch(CodeGenerationLaunchDelegate.java:130)
   at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:766)
   at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:608)
   at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:899)
   at org.eclipse.debug.internal.ui.DebugUIPlugin$7.run(DebugUIPlugin.java:1102)
   at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

Name and version of the database you are using: Microsoft SQL Server 2005
The generated SQL (show_sql=true): Couldn't get this far
Debug level Hibernate log excerpt: Do not know how to check

max · **Posted:** Tue Sep 18, 2007 3:04 am

hmm - you should get a warning about the output directory does not exist instead of this nullpointer.

workaround: make sure you point to an existing directory.

Creepy Gnome · **Joined:** Mon Sep 17, 2007 5:31 pm **Posts:** 8

Actually if you are talking about the output directory for the Code Generation configuration then it does.

It is set to \HibernateTest\src which was selected from the browse button. I double checked via the file system and it is there. This is the default folder created by Eclipse when I created the project.

So it must be something else causing this error.

max · **Posted:** Wed Sep 19, 2007 6:49 am

then it is either template path or reverse engineering xml file that is set to something invalid.

Any way we should error better - plese report it in jira optimally with screenshots of the code generation configuration pages so i can see examples of what values breaks our current checks.

Creepy Gnome · **Joined:** Mon Sep 17, 2007 5:31 pm **Posts:** 8

Well I am new to hiberate, and this community, so please excuse my ignorance.

What is JIRA? How do I access it?

Instead of screen shots isn't there an XML config file I can just upload or paste in to this JIRA? Seems more effective.

max · **Posted:** Thu Sep 20, 2007 1:40 am

google hibernate jira, first link: http://opensource.atlassian.com/projects/hibernate/

well screenshots are good because it let me see what users normally tend to forget to tell ;)

the .launch config file is also fine to attach.

The easiest way to get that is to select the "Common" tab on the code generation page and set it to be a shared file and specify a location in your projects from which you can then pick up the .launch file and attach it to the jira.

Creepy Gnome · **Joined:** Mon Sep 17, 2007 5:31 pm **Posts:** 8

When I went in to generate the screen shots, etc it started to work. The only differences are that I have rebooted the computer since the last try, and I changed the common tab from local to shared like you suggested to be able to get the .launch file.

Not sure what really was the issue.

That solves my issue using jTDS, I still cannot use the MS SQL drivers with hiberate yet but that is off topic, and there is already a thread for that, although it appears dead.

Thanks for you help Max.

max · **Posted:** Wed Sep 26, 2007 4:19 am

which thread ?