ClassLoaderUtils { public static URL getResource(ClassLoader classLoader, String resourceName) throws NullPointerException { URL resourceURL = null; for (ResourceType resourceType : ResourceType.values()) { resourceURL = getResource(classLoader, resourceType, resourceName); if (resourceURL != null) { break; } } return resourceURL; }  static int getLoadedClassCount(); static long getUnloadedClassCount(); static boolean isVerbose(); static void setVerbose(boolean value); static long getTotalLoadedClassCount(); static Set<Class<?>> findLoadedClasses(ClassLoader classLoader, Set<String> classNames); static boolean isLoadedClass(ClassLoader classLoader, Class<?> type); static boolean isLoadedClass(ClassLoader classLoader, String className); static Class<?> findLoadedClass(ClassLoader classLoader, String className); @Nullable static Class<?> loadClass(@Nonnull ClassLoader classLoader, @Nonnull String className); static Set<URL> getResources(ClassLoader classLoader, ResourceType resourceType, String resourceName); static Set<URL> getResources(ClassLoader classLoader, String resourceName); static URL getResource(ClassLoader classLoader, String resourceName); static URL getResource(ClassLoader classLoader, ResourceType resourceType, String resourceName); static URL getClassResource(ClassLoader classLoader, String className); static URL getClassResource(ClassLoader classLoader, Class<?> type); @Nonnull static Set<ClassLoader> getInheritableClassLoaders(ClassLoader classLoader); @Nonnull static Map<ClassLoader, Set<Class<?>>> getAllLoadedClassesMap(ClassLoader classLoader); @Nonnull static Set<Class<?>> getAllLoadedClasses(ClassLoader classLoader); @Nonnull static Set<Class<?>> getLoadedClasses(ClassLoader classLoader); static Set<Class<?>> findLoadedClassesInClassPath(ClassLoader classLoader); static Set<Class<?>> findLoadedClassesInClassPaths(ClassLoader classLoader, Set<String> classPaths); static Set<Class<?>> findLoadedClassesInClassPath(ClassLoader classLoader, String classPath);  }
@Test public void testGetResource() { URL resourceURL = ClassLoaderUtils.getResource(classLoader, ClassLoaderUtilsTest.class.getName() + FileSuffixConstants.CLASS); Assert.assertNotNull(resourceURL); echo(resourceURL); resourceURL = ClassLoaderUtils.getResource(classLoader, " Assert.assertNotNull(resourceURL); echo(resourceURL); resourceURL = ClassLoaderUtils.getResource(classLoader, " Assert.assertNotNull(resourceURL); echo(resourceURL); }