{@code Class} has no public constructor. Instead {@code Class} - * objects are constructed automatically by the Java Virtual Machine as classes - * are loaded and by calls to the {@code defineClass} method in the class - * loader. - * - *
The following example uses a {@code Class} object to print the - * class name of an object: - * - *
- * void printClassName(Object obj) {
- * System.out.println("The class of " + obj +
- * " is " + obj.getClass().getName());
- * }
- * It is also possible to get the {@code Class} object for a named - * type (or for void) using a class literal. See Section 15.8.2 of - * The Java™ Language Specification. - * For example: - * - *
- * {@code System.out.println("The name of class Foo is: "+Foo.class.getName());} - *- * - * @param
- * {@code Class.forName(className, true, currentLoader)} - *- * - * where {@code currentLoader} denotes the defining class loader of - * the current class. - * - *
For example, the following code fragment returns the - * runtime {@code Class} descriptor for the class named - * {@code java.lang.Thread}: - * - *
- * {@code Class t = Class.forName("java.lang.Thread")} - *- *
- * A call to {@code forName("X")} causes the class named - * {@code X} to be initialized. - * - * @param className the fully qualified name of the desired class. - * @return the {@code Class} object for the class with the - * specified name. - * @exception LinkageError if the linkage fails - * @exception ExceptionInInitializerError if the initialization provoked - * by this method fails - * @exception ClassNotFoundException if the class cannot be located - */ - public static Class forName(String className) - throws ClassNotFoundException { - if (className.startsWith("[")) { - Class arrType = defineArray(className); - Class c = arrType; - while (c != null && c.isArray()) { - c = c.getComponentType0(); // verify component type is sane - } - return arrType; - } - Class c = loadCls(className, className.replace('.', '_')); - if (c == null) { - throw new ClassNotFoundException(className); - } - return c; - } - - - /** - * Returns the {@code Class} object associated with the class or - * interface with the given string name, using the given class loader. - * Given the fully qualified name for a class or interface (in the same - * format returned by {@code getName}) this method attempts to - * locate, load, and link the class or interface. The specified class - * loader is used to load the class or interface. If the parameter - * {@code loader} is null, the class is loaded through the bootstrap - * class loader. The class is initialized only if the - * {@code initialize} parameter is {@code true} and if it has - * not been initialized earlier. - * - *
If {@code name} denotes a primitive type or void, an attempt - * will be made to locate a user-defined class in the unnamed package whose - * name is {@code name}. Therefore, this method cannot be used to - * obtain any of the {@code Class} objects representing primitive - * types or void. - * - *
If {@code name} denotes an array class, the component type of - * the array class is loaded but not initialized. - * - *
For example, in an instance method the expression: - * - *
- * {@code Class.forName("Foo")} - *- * - * is equivalent to: - * - *
- * {@code Class.forName("Foo", true, this.getClass().getClassLoader())} - *- * - * Note that this method throws errors related to loading, linking or - * initializing as specified in Sections 12.2, 12.3 and 12.4 of The - * Java Language Specification. - * Note that this method does not check whether the requested class - * is accessible to its caller. - * - *
If the {@code loader} is {@code null}, and a security - * manager is present, and the caller's class loader is not null, then this - * method calls the security manager's {@code checkPermission} method - * with a {@code RuntimePermission("getClassLoader")} permission to - * ensure it's ok to access the bootstrap class loader. - * - * @param name fully qualified name of the desired class - * @param initialize whether the class must be initialized - * @param loader class loader from which the class must be loaded - * @return class object representing the desired class - * - * @exception LinkageError if the linkage fails - * @exception ExceptionInInitializerError if the initialization provoked - * by this method fails - * @exception ClassNotFoundException if the class cannot be located by - * the specified class loader - * - * @see java.lang.Class#forName(String) - * @see java.lang.ClassLoader - * @since 1.2 - */ - public static Class forName(String name, boolean initialize, - ClassLoader loader) - throws ClassNotFoundException - { - return forName(name); - } - - @JavaScriptBody(args = {"n", "c" }, body = - "if (!vm[c]) {\n" - + " if (vm.loadClass) {\n" - + " vm.loadClass(n);\n" - + " }\n" - + " if (!vm[c]) return null;\n" - + "}\n" - + "vm[c](false);" - + "return vm[c].$class;" - ) - private static native Class loadCls(String n, String c); - - - /** - * Creates a new instance of the class represented by this {@code Class} - * object. The class is instantiated as if by a {@code new} - * expression with an empty argument list. The class is initialized if it - * has not already been initialized. - * - *
Note that this method propagates any exception thrown by the - * nullary constructor, including a checked exception. Use of - * this method effectively bypasses the compile-time exception - * checking that would otherwise be performed by the compiler. - * The {@link - * java.lang.reflect.Constructor#newInstance(java.lang.Object...) - * Constructor.newInstance} method avoids this problem by wrapping - * any exception thrown by the constructor in a (checked) {@link - * java.lang.reflect.InvocationTargetException}. - * - * @return a newly allocated instance of the class represented by this - * object. - * @exception IllegalAccessException if the class or its nullary - * constructor is not accessible. - * @exception InstantiationException - * if this {@code Class} represents an abstract class, - * an interface, an array class, a primitive type, or void; - * or if the class has no nullary constructor; - * or if the instantiation fails for some other reason. - * @exception ExceptionInInitializerError if the initialization - * provoked by this method fails. - * @exception SecurityException - * If a security manager, s, is present and any of the - * following conditions is met: - * - *
Specifically, if this {@code Class} object represents a - * declared class, this method returns {@code true} if the specified - * {@code Object} argument is an instance of the represented class (or - * of any of its subclasses); it returns {@code false} otherwise. If - * this {@code Class} object represents an array class, this method - * returns {@code true} if the specified {@code Object} argument - * can be converted to an object of the array class by an identity - * conversion or by a widening reference conversion; it returns - * {@code false} otherwise. If this {@code Class} object - * represents an interface, this method returns {@code true} if the - * class or any superclass of the specified {@code Object} argument - * implements this interface; it returns {@code false} otherwise. If - * this {@code Class} object represents a primitive type, this method - * returns {@code false}. - * - * @param obj the object to check - * @return true if {@code obj} is an instance of this class - * - * @since JDK1.1 - */ - public boolean isInstance(Object obj) { - if (obj == null) { - return false; - } - if (isArray()) { - return isAssignableFrom(obj.getClass()); - } - - String prop = "$instOf_" + getName().replace('.', '_'); - return hasProperty(obj, prop); - } - - @JavaScriptBody(args = { "who", "prop" }, body = - "if (who[prop]) return true; else return false;" - ) - private static native boolean hasProperty(Object who, String prop); - - - /** - * Determines if the class or interface represented by this - * {@code Class} object is either the same as, or is a superclass or - * superinterface of, the class or interface represented by the specified - * {@code Class} parameter. It returns {@code true} if so; - * otherwise it returns {@code false}. If this {@code Class} - * object represents a primitive type, this method returns - * {@code true} if the specified {@code Class} parameter is - * exactly this {@code Class} object; otherwise it returns - * {@code false}. - * - *
Specifically, this method tests whether the type represented by the - * specified {@code Class} parameter can be converted to the type - * represented by this {@code Class} object via an identity conversion - * or via a widening reference conversion. See The Java Language - * Specification, sections 5.1.1 and 5.1.4 , for details. - * - * @param cls the {@code Class} object to be checked - * @return the {@code boolean} value indicating whether objects of the - * type {@code cls} can be assigned to objects of this class - * @exception NullPointerException if the specified Class parameter is - * null. - * @since JDK1.1 - */ - public boolean isAssignableFrom(Class cls) { - if (this == cls) { - return true; - } - - if (isArray()) { - final Class cmpType = cls.getComponentType(); - if (isPrimitive()) { - return this == cmpType; - } - return cmpType != null && getComponentType().isAssignableFrom(cmpType); - } - String prop = "$instOf_" + getName().replace('.', '_'); - return hasCnstrProperty(cls, prop); - } - - @JavaScriptBody(args = { "who", "prop" }, body = - "if (who.cnstr.prototype[prop]) return true; else return false;" - ) - private static native boolean hasCnstrProperty(Object who, String prop); - - - /** - * Determines if the specified {@code Class} object represents an - * interface type. - * - * @return {@code true} if this object represents an interface; - * {@code false} otherwise. - */ - public boolean isInterface() { - return (getAccess() & 0x200) != 0; - } - - @JavaScriptBody(args = {}, body = "return this.access;") - private native int getAccess(); - - - /** - * Determines if this {@code Class} object represents an array class. - * - * @return {@code true} if this object represents an array class; - * {@code false} otherwise. - * @since JDK1.1 - */ - public boolean isArray() { - return hasProperty(this, "array"); // NOI18N - } - - - /** - * Determines if the specified {@code Class} object represents a - * primitive type. - * - *
There are nine predefined {@code Class} objects to represent - * the eight primitive types and void. These are created by the Java - * Virtual Machine, and have the same names as the primitive types that - * they represent, namely {@code boolean}, {@code byte}, - * {@code char}, {@code short}, {@code int}, - * {@code long}, {@code float}, and {@code double}. - * - *
These objects may only be accessed via the following public static - * final variables, and are the only {@code Class} objects for which - * this method returns {@code true}. - * - * @return true if and only if this class represents a primitive type - * - * @see java.lang.Boolean#TYPE - * @see java.lang.Character#TYPE - * @see java.lang.Byte#TYPE - * @see java.lang.Short#TYPE - * @see java.lang.Integer#TYPE - * @see java.lang.Long#TYPE - * @see java.lang.Float#TYPE - * @see java.lang.Double#TYPE - * @see java.lang.Void#TYPE - * @since JDK1.1 - */ - @JavaScriptBody(args = {}, body = - "if (this.primitive) return true;" - + "else return false;" - ) - public native boolean isPrimitive(); - - /** - * Returns true if this {@code Class} object represents an annotation - * type. Note that if this method returns true, {@link #isInterface()} - * would also return true, as all annotation types are also interfaces. - * - * @return {@code true} if this class object represents an annotation - * type; {@code false} otherwise - * @since 1.5 - */ - public boolean isAnnotation() { - return (getModifiers() & ANNOTATION) != 0; - } - - /** - * Returns {@code true} if this class is a synthetic class; - * returns {@code false} otherwise. - * @return {@code true} if and only if this class is a synthetic class as - * defined by the Java Language Specification. - * @since 1.5 - */ - public boolean isSynthetic() { - return (getModifiers() & SYNTHETIC) != 0; - } - - /** - * Returns the name of the entity (class, interface, array class, - * primitive type, or void) represented by this {@code Class} object, - * as a {@code String}. - * - *
If this class object represents a reference type that is not an - * array type then the binary name of the class is returned, as specified - * by - * The Java™ Language Specification. - * - *
If this class object represents a primitive type or void, then the - * name returned is a {@code String} equal to the Java language - * keyword corresponding to the primitive type or void. - * - *
If this class object represents a class of arrays, then the internal - * form of the name consists of the name of the element type preceded by - * one or more '{@code [}' characters representing the depth of the array - * nesting. The encoding of element type names is as follows: - * - *
- * - *- *
Element Type Encoding - * boolean Z - * byte B - * char C - * class or interface - * Lclassname; - * double D - * float F - * int I - * long J - * short S - *
The class or interface name classname is the binary name of - * the class specified above. - * - *
Examples: - *
- * - * @return the name of the class or interface - * represented by this object. - */ - public String getName() { - return jvmName().replace('/', '.'); - } - - @JavaScriptBody(args = {}, body = "return this.jvmName;") - private native String jvmName(); - - - /** - * Returns an array of {@code TypeVariable} objects that represent the - * type variables declared by the generic declaration represented by this - * {@code GenericDeclaration} object, in declaration order. Returns an - * array of length 0 if the underlying generic declaration declares no type - * variables. - * - * @return an array of {@code TypeVariable} objects that represent - * the type variables declared by this generic declaration - * @throws java.lang.reflect.GenericSignatureFormatError if the generic - * signature of this generic declaration does not conform to - * the format specified in - * The Java™ Virtual Machine Specification - * @since 1.5 - */ - public TypeVariable- * String.class.getName() - * returns "java.lang.String" - * byte.class.getName() - * returns "byte" - * (new Object[3]).getClass().getName() - * returns "[Ljava.lang.Object;" - * (new int[3][4][5][6][7][8][9]).getClass().getName() - * returns "[[[[[[[I" - *
If the underlying class is an array class, then its - * {@code public}, {@code private} and {@code protected} - * modifiers are the same as those of its component type. If this - * {@code Class} represents a primitive type or void, its - * {@code public} modifier is always {@code true}, and its - * {@code protected} and {@code private} modifiers are always - * {@code false}. If this object represents an array class, a - * primitive type or void, then its {@code final} modifier is always - * {@code true} and its interface modifier is always - * {@code false}. The values of its other modifiers are not determined - * by this specification. - * - *
The modifier encodings are defined in The Java Virtual Machine - * Specification, table 4.1. - * - * @return the {@code int} representing the modifiers for this class - * @see java.lang.reflect.Modifier - * @since JDK1.1 - */ - public int getModifiers() { - return getAccess(); - } - - - /** - * Returns the simple name of the underlying class as given in the - * source code. Returns an empty string if the underlying class is - * anonymous. - * - *
The simple name of an array is the simple name of the - * component type with "[]" appended. In particular the simple - * name of an array whose component type is anonymous is "[]". - * - * @return the simple name of the underlying class - * @since 1.5 - */ - public String getSimpleName() { - if (isArray()) - return getComponentType().getSimpleName()+"[]"; - - String simpleName = getSimpleBinaryName(); - if (simpleName == null) { // top level class - simpleName = getName(); - return simpleName.substring(simpleName.lastIndexOf(".")+1); // strip the package name - } - // According to JLS3 "Binary Compatibility" (13.1) the binary - // name of non-package classes (not top level) is the binary - // name of the immediately enclosing class followed by a '$' followed by: - // (for nested and inner classes): the simple name. - // (for local classes): 1 or more digits followed by the simple name. - // (for anonymous classes): 1 or more digits. - - // Since getSimpleBinaryName() will strip the binary name of - // the immediatly enclosing class, we are now looking at a - // string that matches the regular expression "\$[0-9]*" - // followed by a simple name (considering the simple of an - // anonymous class to be the empty string). - - // Remove leading "\$[0-9]*" from the name - int length = simpleName.length(); - if (length < 1 || simpleName.charAt(0) != '$') - throw new IllegalStateException("Malformed class name"); - int index = 1; - while (index < length && isAsciiDigit(simpleName.charAt(index))) - index++; - // Eventually, this is the empty string iff this is an anonymous class - return simpleName.substring(index); - } - - /** - * Returns the "simple binary name" of the underlying class, i.e., - * the binary name without the leading enclosing class name. - * Returns {@code null} if the underlying class is a top level - * class. - */ - private String getSimpleBinaryName() { - Class enclosingClass = null; // XXX getEnclosingClass(); - if (enclosingClass == null) // top level class - return null; - // Otherwise, strip the enclosing class' name - try { - return getName().substring(enclosingClass.getName().length()); - } catch (IndexOutOfBoundsException ex) { - throw new IllegalStateException("Malformed class name"); - } - } - - /** - * Returns an array containing {@code Field} objects reflecting all - * the accessible public fields of the class or interface represented by - * this {@code Class} object. The elements in the array returned are - * not sorted and are not in any particular order. This method returns an - * array of length 0 if the class or interface has no accessible public - * fields, or if it represents an array class, a primitive type, or void. - * - *
Specifically, if this {@code Class} object represents a class, - * this method returns the public fields of this class and of all its - * superclasses. If this {@code Class} object represents an - * interface, this method returns the fields of this interface and of all - * its superinterfaces. - * - *
The implicit length field for array class is not reflected by this - * method. User code should use the methods of class {@code Array} to - * manipulate arrays. - * - *
See The Java Language Specification, sections 8.2 and 8.3. - * - * @return the array of {@code Field} objects representing the - * public fields - * @exception SecurityException - * If a security manager, s, is present and any of the - * following conditions is met: - * - *
The class initialization method {@code See The Java Language Specification, sections 8.2 and 8.4.
- *
- * @return the array of {@code Method} objects representing the
- * public methods of this class
- * @exception SecurityException
- * If a security manager, s, is present and any of the
- * following conditions is met:
- *
- * The field to be reflected is determined by the algorithm that
- * follows. Let C be the class represented by this object:
- * See The Java Language Specification, sections 8.2 and 8.3.
- *
- * @param name the field name
- * @return the {@code Field} object of this class specified by
- * {@code name}
- * @exception NoSuchFieldException if a field with the specified name is
- * not found.
- * @exception NullPointerException if {@code name} is {@code null}
- * @exception SecurityException
- * If a security manager, s, is present and any of the
- * following conditions is met:
- *
- * If the {@code name} is "{@code Note that there may be more than one matching method in a
- * class because while the Java language forbids a class to
- * declare multiple methods with the same signature but different
- * return types, the Java virtual machine does not. This
- * increased flexibility in the virtual machine can be used to
- * implement various language features. For example, covariant
- * returns can be implemented with {@linkplain
- * java.lang.reflect.Method#isBridge bridge methods}; the bridge
- * method and the method being overridden would have the same
- * signature but different return types.
- *
- * See The Java Language Specification, sections 8.2 and 8.4.
- *
- * @param name the name of the method
- * @param parameterTypes the list of parameters
- * @return the {@code Method} object that matches the specified
- * {@code name} and {@code parameterTypes}
- * @exception NoSuchMethodException if a matching method is not found
- * or if the name is "<init>"or "<clinit>".
- * @exception NullPointerException if {@code name} is {@code null}
- * @exception SecurityException
- * If a security manager, s, is present and any of the
- * following conditions is met:
- *
- * See The Java Language Specification, section 8.2.
- *
- * @return the array of {@code Method} objects representing all the
- * declared methods of this class
- * @exception SecurityException
- * If a security manager, s, is present and any of the
- * following conditions is met:
- *
- * Before delegation, an absolute resource name is constructed from the
- * given resource name using this algorithm:
- *
- * Where the {@code modified_package_name} is the package name of this
- * object with {@code '/'} substituted for {@code '.'}
- * ('\u002e').
- *
- * Before delegation, an absolute resource name is constructed from the
- * given resource name using this algorithm:
- *
- * Where the {@code modified_package_name} is the package name of this
- * object with {@code '/'} substituted for {@code '.'}
- * ('\u002e').
- *
- * If a security manager is present, and the caller's class loader is
- * not null and the caller's class loader is not the same as or an ancestor of
- * the class loader for the class whose class loader is requested, then
- * this method calls the security manager's {@code checkPermission}
- * method with a {@code RuntimePermission("getClassLoader")}
- * permission to ensure it's ok to access the class loader for the class.
- *
- * If this object
- * represents a primitive type or void, null is returned.
- *
- * @return the class loader that loaded the class or interface
- * represented by this object.
- * @throws SecurityException
- * if a security manager exists and its
- * {@code checkPermission} method denies
- * access to the class loader for the class.
- * @see java.lang.ClassLoader
- * @see SecurityManager#checkPermission
- * @see java.lang.RuntimePermission
- */
- public ClassLoader getClassLoader() {
- throw new SecurityException();
- }
-
- /**
- * Determines the interfaces implemented by the class or interface
- * represented by this object.
- *
- * If this object represents a class, the return value is an array
- * containing objects representing all interfaces implemented by the
- * class. The order of the interface objects in the array corresponds to
- * the order of the interface names in the {@code implements} clause
- * of the declaration of the class represented by this object. For
- * example, given the declaration:
- * If this object represents an interface, the array contains objects
- * representing all interfaces extended by the interface. The order of the
- * interface objects in the array corresponds to the order of the interface
- * names in the {@code extends} clause of the declaration of the
- * interface represented by this object.
- *
- * If this object represents a class or interface that implements no
- * interfaces, the method returns an array of length 0.
- *
- * If this object represents a primitive type or void, the method
- * returns an array of length 0.
- *
- * @return an array of interfaces implemented by this class.
- */
- public native Class[] getInterfaces();
-
- /**
- * Returns the {@code Class} representing the component type of an
- * array. If this class does not represent an array class this method
- * returns null.
- *
- * @return the {@code Class} representing the component type of this
- * class if this class is an array
- * @see java.lang.reflect.Array
- * @since JDK1.1
- */
- public Class getComponentType() {
- if (isArray()) {
- try {
- return getComponentType0();
- } catch (ClassNotFoundException cnfe) {
- throw new IllegalStateException(cnfe);
- }
- }
- return null;
- }
-
- private Class getComponentType0() throws ClassNotFoundException {
- String n = getName().substring(1);
- switch (n.charAt(0)) {
- case 'L':
- n = n.substring(1, n.length() - 1);
- return Class.forName(n);
- case 'I':
- return Integer.TYPE;
- case 'J':
- return Long.TYPE;
- case 'D':
- return Double.TYPE;
- case 'F':
- return Float.TYPE;
- case 'B':
- return Byte.TYPE;
- case 'Z':
- return Boolean.TYPE;
- case 'S':
- return Short.TYPE;
- case 'V':
- return Void.TYPE;
- case 'C':
- return Character.TYPE;
- case '[':
- return defineArray(n);
- default:
- throw new ClassNotFoundException("Unknown component type of " + getName());
- }
- }
-
- @JavaScriptBody(args = { "sig" }, body =
- "var c = Array[sig];\n" +
- "if (c) return c;\n" +
- "c = vm.java_lang_Class(true);\n" +
- "c.jvmName = sig;\n" +
- "c.superclass = vm.java_lang_Object(false).$class;\n" +
- "c.array = true;\n" +
- "Array[sig] = c;\n" +
- "return c;"
- )
- private static native Class defineArray(String sig);
-
- /**
- * Returns true if and only if this class was declared as an enum in the
- * source code.
- *
- * @return true if and only if this class was declared as an enum in the
- * source code
- * @since 1.5
- */
- public boolean isEnum() {
- // An enum must both directly extend java.lang.Enum and have
- // the ENUM bit set; classes for specialized enum constants
- // don't do the former.
- return (this.getModifiers() & ENUM) != 0 &&
- this.getSuperclass() == java.lang.Enum.class;
- }
-
- /**
- * Casts an object to the class or interface represented
- * by this {@code Class} object.
- *
- * @param obj the object to be cast
- * @return the object after casting, or null if obj is null
- *
- * @throws ClassCastException if the object is not
- * null and is not assignable to the type T.
- *
- * @since 1.5
- */
- public T cast(Object obj) {
- if (obj != null && !isInstance(obj))
- throw new ClassCastException(cannotCastMsg(obj));
- return (T) obj;
- }
-
- private String cannotCastMsg(Object obj) {
- return "Cannot cast " + obj.getClass().getName() + " to " + getName();
- }
-
- /**
- * Casts this {@code Class} object to represent a subclass of the class
- * represented by the specified class object. Checks that that the cast
- * is valid, and throws a {@code ClassCastException} if it is not. If
- * this method succeeds, it always returns a reference to this class object.
- *
- * This method is useful when a client needs to "narrow" the type of
- * a {@code Class} object to pass it to an API that restricts the
- * {@code Class} objects that it is willing to accept. A cast would
- * generate a compile-time warning, as the correctness of the cast
- * could not be checked at runtime (because generic types are implemented
- * by erasure).
- *
- * @return this {@code Class} object, cast to represent a subclass of
- * the specified class object.
- * @throws ClassCastException if this {@code Class} object does not
- * represent a subclass of the specified class (here "subclass" includes
- * the class itself).
- * @since 1.5
- */
- public Class asSubclass(Class clazz) {
- if (clazz.isAssignableFrom(this))
- return (Class) this;
- else
- throw new ClassCastException(this.toString());
- }
-
- @JavaScriptBody(args = { "ac" },
- body =
- "if (this.anno) {"
- + " return this.anno['L' + ac.jvmName + ';'];"
- + "} else return null;"
- )
- private Object getAnnotationData(Class annotationClass) {
- throw new UnsupportedOperationException();
- }
- /**
- * @throws NullPointerException {@inheritDoc}
- * @since 1.5
- */
- public A getAnnotation(Class annotationClass) {
- Object data = getAnnotationData(annotationClass);
- return data == null ? null : AnnotationImpl.create(annotationClass, data);
- }
-
- /**
- * @throws NullPointerException {@inheritDoc}
- * @since 1.5
- */
- @JavaScriptBody(args = { "ac" },
- body = "if (this.anno && this.anno['L' + ac.jvmName + ';']) { return true; }"
- + "else return false;"
- )
- public boolean isAnnotationPresent(
- Class annotationClass) {
- if (annotationClass == null)
- throw new NullPointerException();
-
- return getAnnotation(annotationClass) != null;
- }
-
- @JavaScriptBody(args = {}, body = "return this.anno;")
- private Object getAnnotationData() {
- throw new UnsupportedOperationException();
- }
-
- /**
- * @since 1.5
- */
- public Annotation[] getAnnotations() {
- Object data = getAnnotationData();
- return data == null ? new Annotation[0] : AnnotationImpl.create(data);
- }
-
- /**
- * @since 1.5
- */
- public Annotation[] getDeclaredAnnotations() {
- throw new UnsupportedOperationException();
- }
-
- @JavaScriptBody(args = "type", body = ""
- + "var c = vm.java_lang_Class(true);"
- + "c.jvmName = type;"
- + "c.primitive = true;"
- + "return c;"
- )
- native static Class getPrimitiveClass(String type);
-
- @JavaScriptBody(args = {}, body =
- "return vm.desiredAssertionStatus ? vm.desiredAssertionStatus : false;"
- )
- public native boolean desiredAssertionStatus();
-}
- *
- *
- *
- * @since JDK1.1
- */
- public Method[] getMethods() throws SecurityException {
- return MethodImpl.findMethods(this, 0x01);
- }
-
- /**
- * Returns a {@code Field} object that reflects the specified public
- * member field of the class or interface represented by this
- * {@code Class} object. The {@code name} parameter is a
- * {@code String} specifying the simple name of the desired field.
- *
- *
- *
- *
- *
- *
- *
- *
- * @since JDK1.1
- */
- public Field getField(String name)
- throws SecurityException {
- throw new SecurityException();
- }
-
-
- /**
- * Returns a {@code Method} object that reflects the specified public
- * member method of the class or interface represented by this
- * {@code Class} object. The {@code name} parameter is a
- * {@code String} specifying the simple name of the desired method. The
- * {@code parameterTypes} parameter is an array of {@code Class}
- * objects that identify the method's formal parameter types, in declared
- * order. If {@code parameterTypes} is {@code null}, it is
- * treated as if it were an empty array.
- *
- *
- *
- *
- * To find a matching method in a class C: If C declares exactly one
- * public method with the specified name and exactly the same formal
- * parameter types, that is the method reflected. If more than one such
- * method is found in C, and one of these methods has a return type that is
- * more specific than any of the others, that method is reflected;
- * otherwise one of the methods is chosen arbitrarily.
- *
- *
- *
- *
- *
- * @since JDK1.1
- */
- public Method getMethod(String name, Class... parameterTypes)
- throws SecurityException, NoSuchMethodException {
- Method m = MethodImpl.findMethod(this, name, parameterTypes);
- if (m == null) {
- StringBuilder sb = new StringBuilder();
- sb.append(getName()).append('.').append(name).append('(');
- String sep = "";
- for (int i = 0; i < parameterTypes.length; i++) {
- sb.append(sep).append(parameterTypes[i].getName());
- sep = ", ";
- }
- sb.append(')');
- throw new NoSuchMethodException(sb.toString());
- }
- return m;
- }
-
- /**
- * Returns an array of {@code Method} objects reflecting all the
- * methods declared by the class or interface represented by this
- * {@code Class} object. This includes public, protected, default
- * (package) access, and private methods, but excludes inherited methods.
- * The elements in the array returned are not sorted and are not in any
- * particular order. This method returns an array of length 0 if the class
- * or interface declares no methods, or if this {@code Class} object
- * represents a primitive type, an array class, or void. The class
- * initialization method {@code
- *
- *
- *
- * @since JDK1.1
- */
- public Method[] getDeclaredMethods() throws SecurityException {
- throw new SecurityException();
- }
-
- /**
- * Character.isDigit answers {@code true} to some non-ascii
- * digits. This one does not.
- */
- private static boolean isAsciiDigit(char c) {
- return '0' <= c && c <= '9';
- }
-
- /**
- * Returns the canonical name of the underlying class as
- * defined by the Java Language Specification. Returns null if
- * the underlying class does not have a canonical name (i.e., if
- * it is a local or anonymous class or an array whose component
- * type does not have a canonical name).
- * @return the canonical name of the underlying class if it exists, and
- * {@code null} otherwise.
- * @since 1.5
- */
- public String getCanonicalName() {
- if (isArray()) {
- String canonicalName = getComponentType().getCanonicalName();
- if (canonicalName != null)
- return canonicalName + "[]";
- else
- return null;
- }
-// if (isLocalOrAnonymousClass())
-// return null;
-// Class enclosingClass = getEnclosingClass();
- Class enclosingClass = null;
- if (enclosingClass == null) { // top level class
- return getName();
- } else {
- String enclosingName = enclosingClass.getCanonicalName();
- if (enclosingName == null)
- return null;
- return enclosingName + "." + getSimpleName();
- }
- }
-
- /**
- * Finds a resource with a given name. The rules for searching resources
- * associated with a given class are implemented by the defining
- * {@linkplain ClassLoader class loader} of the class. This method
- * delegates to this object's class loader. If this object was loaded by
- * the bootstrap class loader, the method delegates to {@link
- * ClassLoader#getSystemResourceAsStream}.
- *
- *
- *
- *
- *
- * @param name name of the desired resource
- * @return A {@link java.io.InputStream} object or {@code null} if
- * no resource with this name is found
- * @throws NullPointerException If {@code name} is {@code null}
- * @since JDK1.1
- */
- public InputStream getResourceAsStream(String name) {
- name = resolveName(name);
- byte[] arr = getResourceAsStream0(name);
- return arr == null ? null : new ByteArrayInputStream(arr);
- }
-
- @JavaScriptBody(args = "name", body =
- "return (vm.loadBytes) ? vm.loadBytes(name) : null;"
- )
- private static native byte[] getResourceAsStream0(String name);
-
- /**
- * Finds a resource with a given name. The rules for searching resources
- * associated with a given class are implemented by the defining
- * {@linkplain ClassLoader class loader} of the class. This method
- * delegates to this object's class loader. If this object was loaded by
- * the bootstrap class loader, the method delegates to {@link
- * ClassLoader#getSystemResource}.
- *
- *
- * {@code modified_package_name/name}
- *
- *
- *
- *
- *
- *
- * @param name name of the desired resource
- * @return A {@link java.net.URL} object or {@code null} if no
- * resource with this name is found
- * @since JDK1.1
- */
- public java.net.URL getResource(String name) {
- InputStream is = getResourceAsStream(name);
- return is == null ? null : newResourceURL(URL.class, "res:/" + name, is);
- }
-
- @JavaScriptBody(args = { "url", "spec", "is" }, body =
- "var u = url.cnstr(true);\n"
- + "u.constructor.cons__VLjava_lang_String_2Ljava_io_InputStream_2.call(u, spec, is);\n"
- + "return u;"
- )
- private static native URL newResourceURL(Class
- * {@code modified_package_name/name}
- *
- *
- *
- * {@code class Shimmer implements FloorWax, DessertTopping { ... }}
- *
- * suppose the value of {@code s} is an instance of
- * {@code Shimmer}; the value of the expression:
- *
- * {@code s.getClass().getInterfaces()[0]}
- *
- * is the {@code Class} object that represents interface
- * {@code FloorWax}; and the value of:
- *
- * {@code s.getClass().getInterfaces()[1]}
- *
- * is the {@code Class} object that represents interface
- * {@code DessertTopping}.
- *
- *