### Question:
JavaIdentifierUtils { public static String getJavaClassSimpleName(String javaClassName) { List<String> classNameParts = Splitter.on(".").splitToList(javaClassName); String simpleClassName = classNameParts.get(classNameParts.size() - 1); return simpleClassName; }  static String getJavaClassSimpleName(String javaClassName); static boolean isInnerClass(String javaClassName); static boolean isValidClassName(String className); static int getJavaClassNestingLevel(String javaClassName); static boolean isValidConstantName(String fieldName); static String getPackageName(String javaClassName); static boolean isJavaCoreClass(String javaClassName); static boolean hasSuperclassOrImplementsInterface(Class<?> javaClass, String superJavaClassOrInterfaceName); static Set<String> removeInnerClassesAndInvalidClassNames(Set<String> javaClassNames); static Set<String> javaClassNamesToPackages(Set<String> javaClassNames); static Set<String> removeJavaCoreClassNames(Set<String> javaClassNames);  }### Answer:
@Test public void getJavaClassSimpleName() { assertEquals(JavaIdentifierUtils.getJavaClassSimpleName("Test"), "Test"); assertEquals(JavaIdentifierUtils.getJavaClassSimpleName("bla.Test"), "Test"); assertEquals(JavaIdentifierUtils.getJavaClassSimpleName("bla.blub.Test"), "Test"); }