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

I found the reason of the error. The error occurs when i try create a new object from any other class in the constructor of activator class. Isn't it legal to create an object in activator of plugin ?