ClassLoaderUtils { public static boolean isLoadedClass(ClassLoader classLoader, Class<?> type) { return isLoadedClass(classLoader, type.getName()); }  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 testIsLoadedClass() { Assert.assertTrue(ClassLoaderUtils.isLoadedClass(classLoader, String.class)); Assert.assertTrue(ClassLoaderUtils.isLoadedClass(classLoader, Double.class)); Assert.assertTrue(ClassLoaderUtils.isLoadedClass(classLoader, Double.class.getName())); }