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Home » Modeling » Epsilon » Call Java methods from .jar in EWL(Calling .jar in EWL Wizards)
Call Java methods from .jar in EWL [message #826825] Thu, 22 March 2012 14:54 Go to next message
Paulo Alexandre is currently offline Paulo AlexandreFriend
Messages: 17
Registered: November 2011
Junior Member
Hi, everybody.

I would like ask you a help once again.

I'm using EWL wizards, and I want to call java code. These two tutorials works 100% fine

But when I try to use a .jar , I add the required .jar and I'm able to compile successfully.

But in runtime (I started another instance of eclipse) I get a "java.lang.NoClassDefFoundError". I know it's because the .jar cannot be found.

Some months ago, I was able to overcome this problem but now I simply forgot how to solve it. Can you help me?

In advance, I thank you!

Re: Call Java methods from .jar in EWL [message #827106 is a reply to message #826825] Thu, 22 March 2012 22:37 Go to previous messageGo to next message
Horacio Hoyos is currently offline Horacio HoyosFriend
Messages: 196
Registered: October 2009
Location: UK
Senior Member

First thing that comes to mind is that the jar (I am guessing you added the jar to you project root) is being packaged in your plugin/project. Make sure the jar is checked/selected in the build tab when opening the plugin.xml or correctly added in the build path (if not a plugin project).



Horacio Hoyos Rodriguez
Epsilon Committer
Research Assistant
University Of York
Re: Call Java methods from .jar in EWL [message #885417 is a reply to message #827106] Wed, 13 June 2012 00:35 Go to previous message
Robson Silva is currently offline Robson SilvaFriend
Messages: 6
Registered: March 2012
Junior Member
Dear Paulo,

in the plugin.xml, tab runtime, 1) add your .jar as an Exported Package and 2) add it in the classpath.
This should work.
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