Class ClassUtils

lang/src/main/java/org/apache/shiro/lang/util/ClassUtils.java:41–417

Utility method library used to conveniently interact with Class es, such as acquiring them from the application ClassLoader s and instantiating Objects from them. @since 0.1

 * @since 0.1
 */
public final class ClassUtils {

    /**
     * Private internal log instance.
     */
    private static final Logger LOGGER = LoggerFactory.getLogger(ClassUtils.class);

    private static final ThreadLocal<ClassLoader> ADDITIONAL_CLASS_LOADER = new ThreadLocal<>();

    /**
     * SHIRO-767: add a map to mapping primitive data type
     */
    private static final HashMap<String, Class<?>> PRIM_CLASSES
            = new HashMap<>(8, 1.0F);

    static {
        PRIM_CLASSES.put("boolean", boolean.class);
        PRIM_CLASSES.put("byte", byte.class);
        PRIM_CLASSES.put("char", char.class);
        PRIM_CLASSES.put("short", short.class);
        PRIM_CLASSES.put("int", int.class);
        PRIM_CLASSES.put("long", long.class);
        PRIM_CLASSES.put("float", float.class);
        PRIM_CLASSES.put("double", double.class);
        PRIM_CLASSES.put("void", void.class);
    }

    /**
     * @since 1.0
     */
    private static final ClassLoaderAccessor THREAD_CL_ACCESSOR = new ExceptionIgnoringAccessor() {
        @Override
        protected ClassLoader doGetClassLoader() throws Throwable {
            return Thread.currentThread().getContextClassLoader();
        }
    };

    /**
     * @since 1.0
     */
    private static final ClassLoaderAccessor CLASS_LANG_CL_ACCESSOR = new ExceptionIgnoringAccessor() {
        @Override
        protected ClassLoader doGetClassLoader() throws Throwable {
            return ClassUtils.class.getClassLoader();
        }
    };

    /**
     * @since 2.0.4
     */
    private static final ClassLoaderAccessor ADDITIONAL_CL_ACCESSOR = new ExceptionIgnoringAccessor() {
        @Override
        protected ClassLoader doGetClassLoader() throws Throwable {
            ClassLoader cl = ADDITIONAL_CLASS_LOADER.get();
            return cl != null ? cl : ClassUtils.class.getClassLoader();
        }
    };