NPE when the inputResource is a wrong path

[surli]

Just created a small test:

        @Test
	public void testFileSpooned() throws Exception {
		final Launcher launcher = new Launcher();
		launcher.getEnvironment().setNoClasspath(true);
		launcher.addInputResource("./src/test/MyWrongJavaFile.java");
		launcher.run();
		assertTrue(launcher.getModel().getRootPackage() != null);
	}

Failed in error with a NPE.