The activator for bundle is invalid

Question

I\'m trying to create a simple plugin in eclipse. When I run the application, I see this error in log file:

org.osgi.framework.BundleException : The a

Answer 1

In my case this exception was because of inability of Eclipse custom class loader to resolve and load all depending classes from other plugins in-time. I am not Eclipse super-guru so maybe it was my fault.

However it was fixed by disabling lazy loading of plugin. In GUI on Overview tab of MANIFEST.MF editor uncheck Activate this plug-in when one of its classes is loaded. Or directly in MANIFEST.MF delete line

Bundle-ActivationPolicy: lazy