[MikeKing]

Hi,

My Matisse program executes successfully from within the Eclipse IDE.
When I deploy it by Export (ing) the jar file and then try to execute this jar file the following error is obtained
“NoClassDefFoundError: org/jdesktop/layout/GroupLayout$Group”. This happens at the line
“new MapItMainForm().setVisible(true);”

From discussion I found on the internet, it seems that the manifest.mf file should be modified to also contain
Class-Path: swing-layout-1.0.jar, in addition to the usual Main-Class: …..
or something like this.

I tried this but still get the same error.

Can anyone help?

Mike King

[MikeKing]

Hi,

I must be doing something basic wrong, because I solved the ‘NoClassDefFoundError’ problem, but another different ‘NoClassDefFoundError’ problem occurred. I solved this and another different ‘NoClassDefFoundError’ occurred.

The history is shown below:

1.
NoClassDefFoundError: org/jdesktop/layout/GroupLayout$Group
solved by
java -Xbootclasspath/a:”C:\aaaa\MapIt\MapItWorkspace_MyEclipse5\MapIt Model and Hibernate\lib\swing-layout-1.0.jar” -jar MapIt.jar

2.
The above error fixed but now
NoClassDefFoundError: org/Hibernate/HibernateException
solved by
java -Xbootclasspath/a:”C:\aaaa\MapIt\MapItWorkspace_MyEclipse5\MapIt Model and Hibernate\lib\swing-layout-1.0.jar;C:\Program Files\MyEclipse 5.0M2\eclipse\plugins\com.genuitec.org.hibernate.eclipse_4.9.200\lib\hibernate\hibernate3.jar” -jar MapIt.jar

3.
The above error fixed but now
NoClassDefFoundError: org/apache/commons/logging/LogFactory

Is there something I should be doing when using Eclipse/MyEclipse to
export jar file? How do I know what jar’s must be put on the classpath for the deployed program so that I don’t have to react only after the error has happened?

Some help will really be appreciated.

Mike King

[Author]

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