CODEWITHSUNDEEP
javaeclipseosgiapache-felixhelios
John John
John John

Reputation: 4575

java.lang.NoClassDefFoundError on OSGi

I have a bundle, with an activator declared. This activator create a JFrame and show it.

Running on Eclipse as Plugin project it works fine. When I put on Felix it doesn't work anymore. It shows: java.lang.NoClassDefFoundError: com/griep/ui/MainFrame

But MainFrame is located in the same bundle the activator is, as a public class, of course. I don't understand why the classloader isn't finding the class.

Anyone knows what is happening?

Upvotes: 6

Views: 14793

Answers (4)

Steve
Steve

Reputation: 8809

Use this VM argument:

-Djava.specification.version=1.6

This will force Felix to make available the default set of system packages for Java 6, which includes javax.swing and its sub-packages

Upvotes: 2

John John
John John

Reputation: 4575

Now it works! I configured boot delegation in config file!

I put org.osgi.framework.bootdelegation= in config.ini.

Both of you should told me this before guys hehe. Now I read in equinox wiki, that following the OSGi specification I need to define every package I need to use, and I think its right, because some customized VMs can have more libs than other.

But Eclipse don't works in this concept of importing every java package (like javax.swing). I'll report this in Eclipse Bugzilla.

Many thanks both you!

PS: What are your book @Neil?

Upvotes: 1

Neil Bartlett
Neil Bartlett

Reputation: 23948

Make sure you import the javax.swing package into your bundle:

Import-Package: javax.swing

Upvotes: 6

Suraj Chandran
Suraj Chandran

Reputation: 24791

Have you declared the Bundle-ClassPath in your bundle's MANIFEST.MF

Upvotes: 0

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