Eclipse plugin project and user library

Question

I tried to add my own User Library to my eclipse plugin project. But when I run the project, I get the java.lang.ClassNotFoundException. It only works, when I add single jars like mentioned in the accepted answer to this question: Adding jars to a Eclipse PlugIn

How do I use custom User Libraries correctly in eclipse plugin projects?

nitind · Accepted Answer · 2020-03-01T04:31:25.147

2

You don't. Your plug-in executes in the plug-in runtime, which means all of its dependencies have to be stated in its manifest or delivered as part of that plug-in. You'll have to place whatever jars make up the user library into the project itself and add them to the runtime section of your manifest.

Runtime tab of Plug-in Manifest Editor

Don't edit the Java Build Path manually. PDE will change it so that it keeps up with the manifest's contents, but that only goes one-way.

edited Mar 01 '20 at 04:31

answered Feb 09 '14 at 19:37

nitind

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This means I can not add the whole user library to the project, only single jar by jar? – wewa Feb 10 '14 at 08:25
1

Yes. You need to be **explicit** about these things. – nitind Feb 10 '14 at 15:51

score 1 · Answer 2 · answered Feb 09 '14 at 19:35

I generally do it by

1. Open your plugin.xml
2. Go to Runtime tab and add your JAR in the classpath section
3. Also you have to add the plugin dependencies

http://help.eclipse.org/indigo/index.jsp?topic=/org.eclipse.pde.doc.user/guide/tools/editors/manifest_editor/dependencies.htm

Eclipse plugin project and user library

2 Answers2