drools-eclipse/org.guvnor.tools/src/org/guvnor/tools/Activator.java
public void start(BundleContext context) throws Exception {
        super.start(context);
        plugin = this;
        getWorkspace().addResourceChangeListener(rcListner);
    }
public void start(BundleContext context) throws Exception {
        super.start(context);
        plugin = this;
        getWorkspace().addResourceChangeListener(rcListner);
    }
/*
(non-Javadoc)
@see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)