A_in.java

public class A {public void launch(){try {if ((javaProject == null) || !javaProject.exists()) {abort(PDEPlugin.getResourceString("JUnitLaunchConfiguration.error.invalidproject"), null, IJavaLaunchConfigurationConstants.ERR_NOT_A_JAVA_PROJECT); //$NON-NLS-1$
			}
		} catch (CoreException e) {}}
}