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Forum locked This topic is locked, you cannot edit posts or make further replies.  [ 4 posts ] 
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 Post subject: ant startdb results in NoClassDefFoundError
PostPosted: Fri Apr 25, 2008 3:32 pm 
Newbie

Joined: Tue Feb 19, 2008 2:30 pm
Posts: 10
Hibernate version: 3.2
Name and version of the database you are using: HSQLDB

I have downloaded the Hibernate HelloWorld code. When I run ant startdb, I get a NoClassDefFoundError exception. Please help me figure out what could I be doing wrong! From the ant output, looks llike the program is looking for server.properties file, which does not exist.

Thank you!

Full stack trace of any exception that occurs:
[delete] Deleting directory C:\!downloads\Hibernate\jpwh-gettingstarted-070401\helloworld-native\database
[java] [Server@186db54]: [Thread[main,5,main]]: checkRunning(false) entered
[java] [Server@186db54]: [Thread[main,5,main]]: checkRunning(false) exited
[java] [Server@186db54]: Startup sequence initiated from main() method
[java] [Server@186db54]: Loaded properties from [C:\!downloads\Hibernate\jpwh-gettingstarted-070401\helloworld-native\server.properties]
[java] [Server@186db54]: Initiating startup sequence...
[java] [Server@186db54]: Server socket opened successfully in 20 ms.
[java] Exception in thread "HSQLDB Server @186db54" java.lang.NoClassDefFoundError
[java] at org.hsqldb.Database.reopen(Unknown Source)
[java] at org.hsqldb.Database.open(Unknown Source)
[java] at org.hsqldb.DatabaseManager.getDatabase(Unknown Source)
[java] at org.hsqldb.DatabaseManager.getDatabase(Unknown Source)
[java] at org.hsqldb.Server.openDatabases(Unknown Source)
[java] at org.hsqldb.Server.run(Unknown Source)
[java] at org.hsqldb.Server.access$000(Unknown Source)
[java] at org.hsqldb.Server$ServerThread.run(Unknown Source)


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 Post subject:
PostPosted: Fri Apr 25, 2008 7:41 pm 
Newbie

Joined: Tue Feb 19, 2008 2:30 pm
Posts: 10
I had JDK1.5.0_01 installed previously. I now installed JDK1.6.0_06. Now when I execute:
Code:
java -cp hsqldb.jar org.hsqldb.Server
, the HSQL Database Server starts fine.

However, when I run:
Code:
ant startdb
, I still get the same NoClassDefFound error message.

Please advise! Thank you.


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 Post subject:
PostPosted: Fri Apr 25, 2008 8:20 pm 
Newbie

Joined: Tue Feb 19, 2008 2:30 pm
Posts: 10
When I changed the PATH and JAVA_HOME environmental variables to point to the new JDK (1.6.0_06), the error messages disappeared.

So, the bottom line is, HSQLDB as well as some Hibernate packages are not compatible with JDK1.5 and needed JDK1.6. Please correct me if I am wrong.


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 Post subject:
PostPosted: Sat Apr 26, 2008 5:04 am 
Hibernate Team
Hibernate Team

Joined: Fri Oct 05, 2007 4:47 pm
Posts: 2536
Location: Third rock from the Sun
of course they are compatible with JDK1.5,
you probably had some mismatch with PATH and JAVA_HOME versions

_________________
Sanne
http://in.relation.to/


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