ClassUtil { public static Class<?> getPrimitiveType(String name) { PrimitiveInfo<?> info = PRIMITIVES.get(name); if (info != null) { return info.type; } return null; }  static String getClassNameAsResource(String className); static Class<?> getPrimitiveType(String name); static Class<?> getPrimitiveType(Class<?> type); @SuppressWarnings("unchecked") static Class<T> getWrapperTypeIfPrimitive(Class<T> type); static T getPrimitiveDefaultValue(Class<T> type); static boolean isPrimitiveOrWrapper(Class<?> clazz); static Class<?> getArrayClass(Class<?> componentType); static Class<?> getArrayClass(Class<?> componentClass, int dimension); static Class<?> getArrayComponentType(Class<?> type); static boolean isInstance(Class<?> clazz, Object object); static boolean canInstatnce(Class<T> clazz); static List<Class<?>> getAllSuperclasses(Class<?> clazz); static Class<?>[] getAllSuperclassesAsArray(Class<?> clazz); static List<Class<?>> getAllInterfaces(Class<?> clazz); static Class<?>[] getAllInterfacesAsArray(Class<?> clazz); static Set<Class<?>> getAllInterfacesAsSet(Class<?> clazz, ClassLoader classLoader); static boolean isVisible(Class<?> clazz, ClassLoader classLoader); static boolean isCacheSafe(Class<?> clazz, ClassLoader classLoader); static boolean isInterfaceImpl(Class<?> thisClass, Class<?> targetInterface); static boolean isSubClass(Class<?> thisClass, Class<?> target); static boolean isAssignable(Class<?>[] classes, Class<?>[] fromClasses); static boolean isAssignable(Class<?> clazz, Class<?> fromClass); static String locateClass(Class<?> clazz); static String locateClass(String className); static String locateClass(String className, ClassLoader loader); static String getFriendlyClassNameForObject(Object object); static String getFriendlyClassName(Class<?> clazz); static String getFriendlyClassName(String javaClassName); static String getSimpleClassNameForObject(Object object); static String getSimpleClassNameForObject(Object object, boolean processInnerClass); static String getSimpleClassName(Class<?> clazz); static String getSimpleClassName(Class<?> clazz, boolean proccessInnerClass); static String getSimpleClassName(String javaClassName); static String getSimpleClassName(String javaClassName, boolean proccesInnerClass); static String getSimpleMethodSignature(Method method); static String getSimpleMethodSignature(Method method, boolean withClassName); static String getSimpleMethodSignature(Method method, boolean withModifiers, boolean withReturnType,
            boolean withClassName, boolean withExceptionType); static String getShortClassName(String className); static String getShortClassName(Class<?> clazz); static final char INNER_CLASS_SEPARATOR_CHAR; static final String INNER_CLASS_SEPARATOR; }
@Test public void getPrimitiveType() { assertEquals(int.class, ClassUtil.getPrimitiveType("int")); assertEquals(long.class, ClassUtil.getPrimitiveType("long")); assertEquals(short.class, ClassUtil.getPrimitiveType("short")); assertEquals(double.class, ClassUtil.getPrimitiveType("double")); assertEquals(float.class, ClassUtil.getPrimitiveType("float")); assertEquals(char.class, ClassUtil.getPrimitiveType("char")); assertEquals(byte.class, ClassUtil.getPrimitiveType("byte")); assertEquals(boolean.class, ClassUtil.getPrimitiveType("boolean")); assertEquals(void.class, ClassUtil.getPrimitiveType("void")); assertEquals(int.class, ClassUtil.getPrimitiveType("java.lang.Integer")); assertEquals(long.class, ClassUtil.getPrimitiveType("java.lang.Long")); assertEquals(short.class, ClassUtil.getPrimitiveType("java.lang.Short")); assertEquals(double.class, ClassUtil.getPrimitiveType("java.lang.Double")); assertEquals(float.class, ClassUtil.getPrimitiveType("java.lang.Float")); assertEquals(char.class, ClassUtil.getPrimitiveType("java.lang.Character")); assertEquals(byte.class, ClassUtil.getPrimitiveType("java.lang.Byte")); assertEquals(boolean.class, ClassUtil.getPrimitiveType("java.lang.Boolean")); assertEquals(void.class, ClassUtil.getPrimitiveType("java.lang.Void")); assertEquals(null, ClassUtil.getPrimitiveType("java.lang.String")); assertEquals(int.class, ClassUtil.getPrimitiveType(Integer.class)); assertEquals(long.class, ClassUtil.getPrimitiveType(Long.class)); assertEquals(short.class, ClassUtil.getPrimitiveType(Short.class)); assertEquals(double.class, ClassUtil.getPrimitiveType(Double.class)); assertEquals(float.class, ClassUtil.getPrimitiveType(Float.class)); assertEquals(char.class, ClassUtil.getPrimitiveType(Character.class)); assertEquals(byte.class, ClassUtil.getPrimitiveType(Byte.class)); assertEquals(boolean.class, ClassUtil.getPrimitiveType(Boolean.class)); assertEquals(void.class, ClassUtil.getPrimitiveType(Void.class)); assertEquals(null, ClassUtil.getPrimitiveType(String.class)); }