### Question:
ClassBodyComposer { public void handleComposition(CodeCategory category, String... codes) { composer.decorateTrait(category.category, codes); } ClassBodyComposer(Class clazz); String getCompleteClass(); void handleComposition(CodeCategory category, String... codes);  }### Answer:
@Test public void testNonClassNameClass() { ClassBodyComposer composer = new ClassBodyComposer(SparkBodyWrapper.class); try { composer.handleComposition(CodeCategory.CLASS); Assert.assertTrue(false); } catch (RuntimeException ex) { Assert.assertTrue(true); } }