code: public void initializeDefaultPreferences() {
  		IPreferenceStore store = GlassmakerUIPlugin.getDefault().getPreferenceStore();
  		
  		store.setDefault(PreferenceConstants.CLIENT_ID,"YOU_MUST_PROVIDE_A_CLIENT_ID");
  		store.setDefault(PreferenceConstants.CLIENT_SECRET,"YOU_MUST_PROVIDE_A_CLIENT_SECRET");
  	}
docs: /*
  (non-Javadoc)
  
  @see org.eclipse.core.runtime.preferences.AbstractPreferenceInitializer#initializeDefaultPreferences()