code: protected static void setMainJavaClass(ILaunchConfigurationWorkingCopy wc, String name) {
  		wc.setAttribute(
  				IJavaLaunchConfigurationConstants.ATTR_MAIN_TYPE_NAME,
  				name);
  	}
docs: Change the main java class within the given configuration.
  
  @param wc the configuration to change.
  @param name the qualified name of the main Java class.
  @since 0.7