Class represent classes and interfaces
* in a running Java application. Every array also belongs to a class that is
* reflected as a Class object that is shared by all arrays with
* the same element type and number of dimensions. The primitive Java types
* (boolean, byte, char,
* short, int, long,
* float, and double), and the keyword
* void are also represented as Class objects.
*
* Class has no public constructor. Instead Class
* objects are constructed automatically by the Java Virtual Machine as classes
* are loaded and by calls to the defineClass method in the class
* loader.
*
*
The following example uses a 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 Class object for a named
* type (or for void) using a class literal
* (JLS Section 15.8.2).
* For example:
*
*
* System.out.println("The name of class Foo is: "+Foo.class.getName());
* getName. If this Class object represents a
* primitive type, this method returns the name of the primitive type. If
* this Class object represents void this method returns
* "void".
*
* @return a string representation of this class object.
*/
public String toString() {
return (isInterface() ? "interface " : (isPrimitive() ? "" : "class "))
+ getName();
}
/**
* Returns the Class object associated with the class or
* interface with the given string name. Invoking this method is
* equivalent to:
*
*
* Class.forName(className, true, currentLoader)
* currentLoader denotes the defining class loader of
* the current class.
*
* For example, the following code fragment returns the
* runtime Class descriptor for the class named
* java.lang.Thread:
*
*
* Class t = Class.forName("java.lang.Thread")
*
* A call to forName("X") causes the class named
* X to be initialized.
*
* @param className the fully qualified name of the desired class.
* @return the 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 {
return forName0(className, true, ClassLoader.getCallerClassLoader());
}
/**
* Returns the 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 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
* loader is null, the class is loaded through the bootstrap
* class loader. The class is initialized only if the
* initialize parameter is true and if it has
* not been initialized earlier.
*
*
If 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 name. Therefore, this method cannot be used to
* obtain any of the Class objects representing primitive
* types or void.
*
*
If 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: * *
* Class.forName("Foo")
*
* Class.forName("Foo", true, this.getClass().getClassLoader())
* If the loader is null, and a security
* manager is present, and the caller's class loader is not null, then this
* method calls the security manager's checkPermission method
* with a 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
*/
/*KML
public static Class forName(String name, boolean initialize,
ClassLoader loader)
throws ClassNotFoundException
{
if (loader == null) {
SecurityManager sm = System.getSecurityManager();
if (sm != null) {
ClassLoader ccl = ClassLoader.getCallerClassLoader();
if (ccl != null) {
sm.checkPermission(
SecurityConstants.GET_CLASSLOADER_PERMISSION);
}
}
}
return forName0(name, initialize, loader);
}
*/
/** Called after security checks have been made. */
/*KML
private static native Class forName0(String name, boolean initialize,
ClassLoader loader)
throws ClassNotFoundException;
*/
/**
* Creates a new instance of the class represented by this Class
* object. The class is instantiated as if by a new
* expression with an empty argument list. The class is initialized if it
* has not already been initialized.
*
*
If there is a security manager, this method first calls the security
* manager's checkMemberAccess method with this
* and Member.PUBLIC as its arguments. If the class is in a
* package, then this method also calls the security manager's
* checkPackageAccess method with the package name as its
* argument. Either of these calls could result in a SecurityException.
*
* @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 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 there is no permission to create a new
* instance.
*
*/
public Object newInstance()
throws InstantiationException, IllegalAccessException
{
if (System.getSecurityManager() != null) {
checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
}
return newInstance0();
}
private Object newInstance0()
throws InstantiationException, IllegalAccessException
{
// NOTE: the following code may not be strictly correct under
// the current Java memory model.
// Constructor lookup
if (cachedConstructor == null) {
if (this == Class.class) {
throw new IllegalAccessException(
"Can not call newInstance() on the Class for java.lang.Class"
);
}
try {
final Constructor c =
getConstructor0(new Class[] {}, Member.DECLARED);
// Disable accessibility checks on the constructor
// since we have to do the security check here anyway
// (the stack depth is wrong for the Constructor's
// security check to work)
java.security.AccessController.doPrivileged
(new java.security.PrivilegedAction() {
public Object run() {
c.setAccessible(true);
return null;
}
});
cachedConstructor = c;
} catch (NoSuchMethodException e) {
throw new InstantiationException(getName());
}
}
Constructor tmpConstructor = cachedConstructor;
// Security check (same as in java.lang.reflect.Constructor)
int modifiers = tmpConstructor.getModifiers();
if (!Reflection.quickCheckMemberAccess(this, modifiers)) {
Class caller = Reflection.getCallerClass(3);
if (newInstanceCallerCache != caller) {
Reflection.ensureMemberAccess(caller, this, null, modifiers);
newInstanceCallerCache = caller;
}
}
// Run constructor
try {
return tmpConstructor.newInstance(null);
} catch (InvocationTargetException e) {
Unsafe.getUnsafe().throwException(e.getTargetException());
// Not reached
return null;
}
}
//KML private volatile transient Constructor cachedConstructor;
//KML private volatile transient Class newInstanceCallerCache;
/**
* Determines if the specified Object is assignment-compatible
* with the object represented by this Class. This method is
* the dynamic equivalent of the Java language instanceof
* operator. The method returns true if the specified
* Object argument is non-null and can be cast to the
* reference type represented by this Class object without
* raising a ClassCastException. It returns false
* otherwise.
*
*
Specifically, if this Class object represents a
* declared class, this method returns true if the specified
* Object argument is an instance of the represented class (or
* of any of its subclasses); it returns false otherwise. If
* this Class object represents an array class, this method
* returns true if the specified Object argument
* can be converted to an object of the array class by an identity
* conversion or by a widening reference conversion; it returns
* false otherwise. If this Class object
* represents an interface, this method returns true if the
* class or any superclass of the specified Object argument
* implements this interface; it returns false otherwise. If
* this Class object represents a primitive type, this method
* returns false.
*
* @param obj the object to check
* @return true if obj is an instance of this class
*
* @since JDK1.1
*/
public native boolean isInstance(Object obj);
/**
* Determines if the class or interface represented by this
* Class object is either the same as, or is a superclass or
* superinterface of, the class or interface represented by the specified
* Class parameter. It returns true if so;
* otherwise it returns false. If this Class
* object represents a primitive type, this method returns
* true if the specified Class parameter is
* exactly this Class object; otherwise it returns
* false.
*
*
Specifically, this method tests whether the type represented by the
* specified Class parameter can be converted to the type
* represented by this 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 Class object to be checked
* @return the boolean value indicating whether objects of the
* type cls can be assigned to objects of this class
* @exception NullPointerException if the specified Class parameter is
* null.
* @since JDK1.1
*/
public native boolean isAssignableFrom(Class cls);
/**
* Determines if the specified Class object represents an
* interface type.
*
* @return true if this object represents an interface;
* false otherwise.
*/
public native boolean isInterface();
/**
* Determines if this Class object represents an array class.
*
* @return true if this object represents an array class;
* false otherwise.
* @since JDK1.1
*/
public native boolean isArray();
/**
* Determines if the specified Class object represents a
* primitive type.
*
*
There are nine predefined 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 boolean, byte,
* char, short, int,
* long, float, and double.
*
*
These objects may only be accessed via the following public static
* final variables, and are the only Class objects for which
* this method returns 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
*/
public native boolean isPrimitive();
/**
* Returns the name of the entity (class, interface, array class,
* primitive type, or void) represented by this Class object,
* as a 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, Second Edition. * *
If this class object represents a primitive type or void, then the * name returned is a 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 '[' 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: *
* 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 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 checkPermission
* method with a 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
* checkPermission method denies
* access to the class loader for the class.
* @see java.lang.ClassLoader
* @see SecurityManager#checkPermission
* @see java.lang.RuntimePermission
*/
/*KML
public ClassLoader getClassLoader() {
ClassLoader cl = getClassLoader0();
if (cl == null)
return null;
SecurityManager sm = System.getSecurityManager();
if (sm != null) {
ClassLoader ccl = ClassLoader.getCallerClassLoader();
if (ccl != null && ccl != cl && !cl.isAncestor(ccl)) {
sm.checkPermission(SecurityConstants.GET_CLASSLOADER_PERMISSION);
}
}
return cl;
}
*/
// Package-private to allow ClassLoader access
//KML native ClassLoader getClassLoader0();
/**
* Returns the Class representing the superclass of the entity
* (class, interface, primitive type or void) represented by this
* Class. If this Class represents either the
* Object class, an interface, a primitive type, or void, then
* null is returned. If this object represents an array class then the
* Class object representing the Object class is
* returned.
*
* @return the superclass of the class represented by this object.
*/
public native Class getSuperclass();
/**
* Gets the package for this class. The class loader of this class is used
* to find the package. If the class was loaded by the bootstrap class
* loader the set of packages loaded from CLASSPATH is searched to find the
* package of the class. Null is returned if no package object was created
* by the class loader of this class.
*
*
Packages have attributes for versions and specifications only if the * information was defined in the manifests that accompany the classes, and * if the class loader created the package instance with the attributes * from the manifest. * * @return the package of the class, or null if no package * information is available from the archive or codebase. */ /*KML public Package getPackage() { return Package.getPackage(this); } */ /** * 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 implements clause
* of the declaration of the class represented by this object. For
* example, given the declaration:
*
* class Shimmer implements FloorWax, DessertTopping { ... }
* s is an instance of
* Shimmer; the value of the expression:
*
* s.getClass().getInterfaces()[0]
* Class object that represents interface
* FloorWax; and the value of:
*
* s.getClass().getInterfaces()[1]
* Class object that represents interface
* DessertTopping.
*
* 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 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 Class representing the component type of an
* array. If this class does not represent an array class this method
* returns null.
*
* @return the Class representing the component type of this
* class if this class is an array
* @see java.lang.reflect.Array
* @since JDK1.1
*/
public native Class getComponentType();
/**
* Returns the Java language modifiers for this class or interface, encoded
* in an integer. The modifiers consist of the Java Virtual Machine's
* constants for public, protected,
* private, final, static,
* abstract and interface; they should be decoded
* using the methods of class Modifier.
*
*
If the underlying class is an array class, then its
* public, private and protected
* modifiers are the same as those of its component type. If this
* Class represents a primitive type or void, its
* public modifier is always true, and its
* protected and private modifiers are always
* false. If this object represents an array class, a
* primitive type or void, then its final modifier is always
* true and its interface modifier is always
* 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 int representing the modifiers for this class
* @see java.lang.reflect.Modifier
* @since JDK1.1
*/
public native int getModifiers();
/**
* Gets the signers of this class.
*
* @return the signers of this class, or null if there are no signers. In
* particular, this method returns null if this object represents
* a primitive type or void.
* @since JDK1.1
*/
public native Object[] getSigners();
/**
* Set the signers of this class.
*/
native void setSigners(Object[] signers);
/**
* If the class or interface represented by this Class object
* is a member of another class, returns the Class object
* representing the class in which it was declared. This method returns
* null if this class or interface is not a member of any other class. If
* this Class object represents an array class, a primitive
* type, or void,then this method returns null.
*
* @return the declaring class for this class
* @since JDK1.1
*/
public native Class getDeclaringClass();
/**
* Returns an array containing Class objects representing all
* the public classes and interfaces that are members of the class
* represented by this Class object. This includes public
* class and interface members inherited from superclasses and public class
* and interface members declared by the class. This method returns an
* array of length 0 if this Class object has no public member
* classes or interfaces. This method also returns an array of length 0 if
* this Class object represents a primitive type, an array
* class, or void.
*
*
For this class and each of its superclasses, the following
* security checks are performed:
* If there is a security manager, the security manager's
* checkMemberAccess method is called with this
* and Member.PUBLIC as its arguments, where this
* is this class or the superclass whose members are being determined. If
* the class is in a package, then the security manager's
* checkPackageAccess method is also called with the package
* name as its argument. Either of these calls could result in a
* SecurityException.
*
* @return the array of Class objects representing the public
* members of this class
* @exception SecurityException if access to the information is denied.
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
*
* @since JDK1.1
*/
public Class[] getClasses() {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
// Privileged so this implementation can look at DECLARED classes,
// something the caller might not have privilege to do. The code here
// is allowed to look at DECLARED classes because (1) it does not hand
// out anything other than public members and (2) public member access
// has already been ok'd by the SecurityManager.
Class[] result = (Class[]) java.security.AccessController.doPrivileged
(new java.security.PrivilegedAction() {
public Object run() {
java.util.List list = new java.util.ArrayList();
Class currentClass = Class.this;
while (currentClass != null) {
Class[] members = currentClass.getDeclaredClasses();
for (int i = 0; i < members.length; i++) {
if (Modifier.isPublic(members[i].getModifiers())) {
list.add(members[i]);
}
}
currentClass = currentClass.getSuperclass();
}
return list.toArray(new Class[0]);
}
});
return result;
}
/**
* Returns an array containing Field objects reflecting all
* the accessible public fields of the class or interface represented by
* this 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 Class object represents a class,
* this method returns the public fields of this class and of all its
* superclasses. If this Class object represents an
* interface, this method returns the fields of this interface and of all
* its superinterfaces.
*
*
If there is a security manager, this method first
* calls the security manager's checkMemberAccess method
* with this and Member.PUBLIC
* as its arguments. If the class is in a package, then this method
* also calls the security manager's checkPackageAccess
* method with the package name as its argument. Either of these calls
* could result in a SecurityException.
*
*
The implicit length field for array class is not reflected by this
* method. User code should use the methods of class Array to
* manipulate arrays.
*
*
See The Java Language Specification, sections 8.2 and 8.3.
*
* @return the array of Field objects representing the
* public fields
* @exception SecurityException if access to the information is denied.
* @see java.lang.reflect.Field
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
* @since JDK1.1
*/
/*KML
public Field[] getFields() throws SecurityException {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
return copyFields(privateGetPublicFields(null));
}
*/
/**
* Returns an array containing Method objects reflecting all
* the public member methods of the class or interface represented
* by this Class object, including those declared by the class
* or interface and and those inherited from superclasses and
* superinterfaces. 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 this Class object represents a class or interface that
* has no public member methods, or if this Class object
* represents an array class, primitive type, or void.
*
*
If there is a security manager, this method first
* calls the security manager's checkMemberAccess method
* with this and Member.PUBLIC
* as its arguments. If the class is in a package, then this method
* also calls the security manager's checkPackageAccess
* method with the package name
* as its argument. Either of these calls could result in a SecurityException.
*
*
The class initialization method <clinit> is not
* included in the returned array. If the class declares multiple public
* member methods with the same parameter types, they are all included in
* the returned array.
*
*
See The Java Language Specification, sections 8.2 and 8.4.
*
* @return the array of Method objects representing the
* public methods of this class
* @exception SecurityException if access to the information is denied.
* @see java.lang.reflect.Method
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
* @since JDK1.1
*/
/*KML
public Method[] getMethods() throws SecurityException {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
return copyMethods(privateGetPublicMethods());
}
*/
/**
* Returns an array containing Constructor objects reflecting
* all the public constructors of the class represented by this
* Class object. An array of length 0 is returned if the
* class has no public constructors, or if the class is an array class, or
* if the class reflects a primitive type or void.
*
*
If there is a security manager, this method first
* calls the security manager's checkMemberAccess method
* with this and Member.PUBLIC
* as its arguments. If the class is in a package, then this method
* also calls the security manager's checkPackageAccess
* method with the package name
* as its argument. Either of these calls could result in a SecurityException.
*
* @return the array containing Method objects for all the
* declared public constructors of this class matches the specified
* parameterTypes
* @exception SecurityException if access to the information is denied.
* @see java.lang.reflect.Constructor
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
* @since JDK1.1
*/
/*KML
public Constructor[] getConstructors() throws SecurityException {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
return copyConstructors(privateGetDeclaredConstructors(true));
}
*/
/**
* Returns a Field object that reflects the specified public
* member field of the class or interface represented by this
* Class object. The name parameter is a
* String specifying the simple name of the desired field.
*
*
If there is a security manager, this method first
* calls the security manager's checkMemberAccess method
* with this and Member.PUBLIC
* as its arguments. If the class is in a package, then this method
* also calls the security manager's checkPackageAccess
* method with the package name
* as its argument. Either of these calls could result in a SecurityException.
*
*
The field to be reflected is determined by the algorithm that * follows. Let C be the class represented by this object: *
NoSuchFieldException
* is thrown. See The Java Language Specification, sections 8.2 and 8.3.
*
* @param name the field name
* @return the Field object of this class specified by
* name
* @exception NoSuchFieldException if a field with the specified name is
* not found.
* @exception NullPointerException if name is null
* @exception SecurityException if access to the information is denied.
* @see java.lang.reflect.Field
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
* @since JDK1.1
*/
/*KML
public Field getField(String name)
throws NoSuchFieldException, SecurityException {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
Field field = getField0(name);
if (field == null) {
throw new NoSuchFieldException(name);
}
return field;
}
*/
/**
* Returns a Method object that reflects the specified public
* member method of the class or interface represented by this
* Class object. The name parameter is a
* String specifying the simple name the desired method. The
* parameterTypes parameter is an array of Class
* objects that identify the method's formal parameter types, in declared
* order. If parameterTypes is null, it is
* treated as if it were an empty array.
*
*
If there is a security manager, this method first
* calls the security manager's checkMemberAccess method
* with this and Member.PUBLIC
* as its arguments. If the class is in a package, then this method
* also calls the security manager's checkPackageAccess
* method with the package name
* as its argument. Either of these calls could result in a SecurityException.
*
*
If the name is "<init>"or "<clinit>" a
* NoSuchMethodException is raised. Otherwise, the method 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 8.4.
*
* @param name the name of the method
* @param parameterTypes the list of parameters
* @return the Method object that matches the specified
* name and parameterTypes
* @exception NoSuchMethodException if a matching method is not found
* or if the name is "<init>"or "<clinit>".
* @exception NullPointerException if name is null
* @exception SecurityException if access to the information is denied.
* @see java.lang.reflect.Method
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
* @since JDK1.1
*/
/*KML
public Method getMethod(String name, Class[] parameterTypes)
throws NoSuchMethodException, SecurityException {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
Method method = getMethod0(name, parameterTypes);
if (method == null) {
throw new NoSuchMethodException(getName() + "." + name + argumentTypesToString(parameterTypes));
}
return method;
}
*/
/**
* Returns a Constructor object that reflects the specified
* public constructor of the class represented by this Class
* object. The parameterTypes parameter is an array of
* Class objects that identify the constructor's formal
* parameter types, in declared order.
*
*
The constructor to reflect is the public constructor of the class
* represented by this Class object whose formal parameter
* types match those specified by parameterTypes.
*
*
If there is a security manager, this method first
* calls the security manager's checkMemberAccess method
* with this and Member.PUBLIC
* as its arguments. If the class is in a package, then this method
* also calls the security manager's checkPackageAccess method
* with the package name as its argument. Either of these calls could
* result in a SecurityException.
*
* @param parameterTypes the parameter array
* @return the Method object of the public constructor that
* matches the specified parameterTypes
* @exception NoSuchMethodException if a matching method is not found.
* @exception SecurityException if access to the information is denied.
* @see java.lang.reflect.Constructor
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
* @since JDK1.1
*/
/*KML
public Constructor getConstructor(Class[] parameterTypes)
throws NoSuchMethodException, SecurityException {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
return getConstructor0(parameterTypes, Member.PUBLIC);
}
*/
/**
* Returns an array of Class objects reflecting all the
* classes and interfaces declared as members of the class represented by
* this Class object. This includes public, protected, default
* (package) access, and private classes and interfaces declared by the
* class, but excludes inherited classes and interfaces. This method
* returns an array of length 0 if the class declares no classes or
* interfaces as members, or if this Class object represents a
* primitive type, an array class, or void.
*
*
If there is a security manager, this method first
* calls the security manager's checkMemberAccess method
* with this and Member.DECLARED
* as its arguments. If the class is in a package, then this method also
* calls the security manager's checkPackageAccess method with
* the package name as its argument. Either of these calls could result in
* a SecurityException.
*
* @return the array of Class objects representing all the
* declared members of this class
* @exception SecurityException if access to the information is denied.
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
* @since JDK1.1
*/
public Class[] getDeclaredClasses() throws SecurityException {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
return getDeclaredClasses0();
}
/**
* Returns an array of Field objects reflecting all the fields
* declared by the class or interface represented by this
* Class object. This includes public, protected, default
* (package) access, and private fields, but excludes inherited fields.
* 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 fields, or if this Class object
* represents a primitive type, an array class, or void.
*
*
See The Java Language Specification, sections 8.2 and 8.3. * *
If there is a security manager, this method first
* calls the security manager's checkMemberAccess method with
* this and Member.DECLARED as its arguments. If
* the class is in a package, then this method also calls the security
* manager's checkPackageAccess method with the package name
* as its argument. Either of these calls could result in a
* SecurityException.
*
* @return the array of Field objects representing all the
* declared fields of this class
* @exception SecurityException if access to the information is denied.
* @see java.lang.reflect.Field
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
* @since JDK1.1
*/
/*KML
public Field[] getDeclaredFields() throws SecurityException {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
return copyFields(privateGetDeclaredFields(false));
}
*/
/**
* Returns an array of Method objects reflecting all the
* methods declared by the class or interface represented by this
* 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 Class object
* represents a primitive type, an array class, or void. The class
* initialization method <clinit> is not included in the
* returned array. If the class declares multiple public member methods
* with the same parameter types, they are all included in the returned
* array.
*
*
See The Java Language Specification, section 8.2. * *
If there is a security manager, this method first
* calls the security manager's checkMemberAccess method
* with this and Member.DECLARED
* as its arguments. If the class is in a package, then this method
* also calls the security manager's checkPackageAccess method
* with the package name as its argument. Either of these calls could
* result in a SecurityException.
*
* @return the array of Method objects representing all the
* declared methods of this class
* @exception SecurityException if access to the information is denied.
* @see java.lang.reflect.Method
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
* @since JDK1.1
*/
/*KML
public Method[] getDeclaredMethods() throws SecurityException {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
return copyMethods(privateGetDeclaredMethods(false));
}
*/
/**
* Returns an array of Constructor objects reflecting all the
* constructors declared by the class represented by this
* Class object. These are public, protected, default
* (package) access, and private constructors. The elements in the array
* returned are not sorted and are not in any particular order. If the
* class has a default constructor, it is included in the returned array.
* This method returns an array of length 0 if this Class
* object represents an interface, a primitive type, an array class, or
* void.
*
*
See The Java Language Specification, section 8.2. * *
If there is a security manager, this method first
* calls the security manager's checkMemberAccess method
* with this and Member.DECLARED
* as its arguments. If the class is in a package, then this method
* also calls the security manager's checkPackageAccess method
* with the package name as its argument. Either of these calls could
* result in a SecurityException.
*
* @return the array of Method objects representing all the
* declared constructors of this class
* @exception SecurityException if access to the information is denied.
* @see java.lang.reflect.Constructor
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
* @since JDK1.1
*/
/*KML
public Constructor[] getDeclaredConstructors() throws SecurityException {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
return copyConstructors(privateGetDeclaredConstructors(false));
}
*/
/**
* Returns a Field object that reflects the specified declared
* field of the class or interface represented by this Class
* object. The name parameter is a String that
* specifies the simple name of the desired field. Note that this method
* will not reflect the length field of an array class.
*
*
If there is a security manager, this method first
* calls the security manager's checkMemberAccess method
* with this and Member.DECLARED
* as its arguments. If the class is in a package, then this method
* also calls the security manager's checkPackageAccess method
* with the package name as its argument. Either of these calls could
* result in a SecurityException.
*
* @param name the name of the field
* @return the Field object for the specified field in this
* class
* @exception NoSuchFieldException if a field with the specified name is
* not found.
* @exception NullPointerException if name is null
* @exception SecurityException if access to the information is denied.
* @see java.lang.reflect.Field
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
* @since JDK1.1
*/
/*KML
public Field getDeclaredField(String name)
throws NoSuchFieldException, SecurityException {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
Field field = searchFields(privateGetDeclaredFields(false), name);
if (field == null) {
throw new NoSuchFieldException(name);
}
return field;
}
*/
/**
* Returns a Method object that reflects the specified
* declared method of the class or interface represented by this
* Class object. The name parameter is a
* String that specifies the simple name of the desired
* method, and the parameterTypes parameter is an array of
* Class objects that identify the method's formal parameter
* types, in declared order. If more than one method with the same
* parameter types is declared in a class, and one of these methods has a
* return type that is more specific than any of the others, that method is
* returned; otherwise one of the methods is chosen arbitrarily. If the
* name is "<init>"or "<clinit>" a NoSuchMethodException
* is raised.
*
*
If there is a security manager, this method first
* calls the security manager's checkMemberAccess method
* with this and Member.DECLARED
* as its arguments. If the class is in a package, then this method also
* calls the security manager's checkPackageAccess method with
* the package name as its argument. Either of these calls could result in
* a SecurityException.
*
* @param name the name of the method
* @param parameterTypes the parameter array
* @return the Method object for the method of this class
* matching the specified name and parameters
* @exception NoSuchMethodException if a matching method is not found.
* @exception NullPointerException if name is null
* @exception SecurityException if access to the information is denied.
* @see java.lang.reflect.Method
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
* @since JDK1.1
*/
/*KML
public Method getDeclaredMethod(String name, Class[] parameterTypes)
throws NoSuchMethodException, SecurityException {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
Method method = searchMethods(privateGetDeclaredMethods(false), name, parameterTypes);
if (method == null) {
throw new NoSuchMethodException(getName() + "." + name + argumentTypesToString(parameterTypes));
}
return method;
}
*/
/**
* Returns a Constructor object that reflects the specified
* constructor of the class or interface represented by this
* Class object. The parameterTypes parameter is
* an array of Class objects that identify the constructor's
* formal parameter types, in declared order.
*
*
If there is a security manager, this method first
* calls the security manager's checkMemberAccess method
* with this and Member.DECLARED
* as its arguments. If the class is in a package, then this method
* also calls the security manager's checkPackageAccess
* method with the package name
* as its argument. Either of these calls could result in a SecurityException.
*
* @param parameterTypes the parameter array
* @return The Method object for the constructor with the
* specified parameter list
* @exception NoSuchMethodException if a matching method is not found.
* @exception SecurityException if access to the information is denied.
* @see java.lang.reflect.Constructor
* @see SecurityManager#checkMemberAccess(Class, int)
* @see SecurityManager#checkPackageAccess(String)
* @since JDK1.1
*/
/*KML
public Constructor getDeclaredConstructor(Class[] parameterTypes)
throws NoSuchMethodException, SecurityException {
// be very careful not to change the stack depth of this
// checkMemberAccess call for security reasons
// see java.lang.SecurityManager.checkMemberAccess
checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
return getConstructor0(parameterTypes, Member.DECLARED);
}
*/
/**
* Finds a resource with a given name. This method returns null if no
* resource with this name is found. The rules for searching
* resources associated with a given class are implemented by the
* defining class loader of the class.
*
*
This method delegates the call to its class loader, after making
* these changes to the resource name: if the resource name starts with
* "/", it is unchanged; otherwise, the package name is prepended to the
* resource name after converting "." to "/". If this object was loaded by
* the bootstrap loader, the call is delegated to
* ClassLoader.getSystemResourceAsStream.
*
* @param name name of the desired resource
* @return a java.io.InputStream object.
* @throws NullPointerException if name is null.
* @see java.lang.ClassLoader
* @since JDK1.1
*/
/*KML
public InputStream getResourceAsStream(String name) {
name = resolveName(name);
ClassLoader cl = getClassLoader0();
if (cl==null) {
// A system class.
return ClassLoader.getSystemResourceAsStream(name);
}
return cl.getResourceAsStream(name);
}
*/
/**
* Finds a resource with a given name. This method returns null if no
* resource with this name is found. The rules for searching resources
* associated with a given class are implemented by the * defining class
* loader of the class.
*
*
This method delegates the call to its class loader, after making
* these changes to the resource name: if the resource name starts with
* "/", it is unchanged; otherwise, the package name is prepended to the
* resource name after converting "." to "/". If this object was loaded by
* the bootstrap loader, the call is delegated to
* ClassLoader.getSystemResource.
*
* @param name name of the desired resource
* @return a java.net.URL object.
* @see java.lang.ClassLoader
* @since JDK1.1
*/
/*KML
public java.net.URL getResource(String name) {
name = resolveName(name);
ClassLoader cl = getClassLoader0();
if (cl==null) {
// A system class.
return ClassLoader.getSystemResource(name);
}
return cl.getResource(name);
}
*/
/** protection domain returned when the internal domain is null */
//KML private static java.security.ProtectionDomain allPermDomain;
/**
* Returns the ProtectionDomain of this class. If there is a
* security manager installed, this method first calls the security
* manager's checkPermission method with a
* RuntimePermission("getProtectionDomain") permission to
* ensure it's ok to get the
* ProtectionDomain.
*
* @return the ProtectionDomain of this class
*
* @throws SecurityException
* if a security manager exists and its
* checkPermission method doesn't allow
* getting the ProtectionDomain.
*
* @see java.security.ProtectionDomain
* @see SecurityManager#checkPermission
* @see java.lang.RuntimePermission
* @since 1.2
*/
/*KML
public java.security.ProtectionDomain getProtectionDomain() {
SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(SecurityConstants.GET_PD_PERMISSION);
}
java.security.ProtectionDomain pd = getProtectionDomain0();
if (pd == null) {
if (allPermDomain == null) {
java.security.Permissions perms =
new java.security.Permissions();
perms.add(SecurityConstants.ALL_PERMISSION);
allPermDomain =
new java.security.ProtectionDomain(null, perms);
}
pd = allPermDomain;
}
return pd;
}
*/
/**
* Returns the ProtectionDomain of this class.
*/
//KML private native java.security.ProtectionDomain getProtectionDomain0();
/**
* Set the ProtectionDomain for this class. Called by
* ClassLoader.defineClass.
*/
//KML native void setProtectionDomain0(java.security.ProtectionDomain pd);
/*
* Return the Virtual Machine's Class object for the named
* primitive type.
*/
static native Class getPrimitiveClass(String name);
/*
* Check if client is allowed to access members. If access is denied,
* throw a SecurityException.
*
* Be very careful not to change the stack depth of this checkMemberAccess
* call for security reasons reasons see
* java.lang.SecurityManager.checkMemberAccess
*
*
Default policy: allow all clients access with normal Java access
* control.
*/
/*KML
private void checkMemberAccess(int which, ClassLoader ccl) {
SecurityManager s = System.getSecurityManager();
if (s != null) {
s.checkMemberAccess(this, which);
ClassLoader cl = getClassLoader0();
if ((ccl != null) && (ccl != cl) &&
((cl == null) || !cl.isAncestor(ccl))) {
String name = this.getName();
int i = name.lastIndexOf('.');
if (i != -1) {
s.checkPackageAccess(name.substring(0, i));
}
}
}
}
*/
/**
* Add a package name prefix if the name is not absolute Remove leading "/"
* if name is absolute
*/
private String resolveName(String name) {
if (name == null) {
return name;
}
if (!name.startsWith("/")) {
Class c = this;
while (c.isArray()) {
c = c.getComponentType();
}
String baseName = c.getName();
int index = baseName.lastIndexOf('.');
if (index != -1) {
name = baseName.substring(0, index).replace('.', '/')
+"/"+name;
}
} else {
name = name.substring(1);
}
return name;
}
/**
* Reflection support.
*/
// Caches for certain reflective results
/*KML
private static boolean useCaches = true;
private volatile transient SoftReference declaredFields;
private volatile transient SoftReference publicFields;
private volatile transient SoftReference declaredMethods;
private volatile transient SoftReference publicMethods;
private volatile transient SoftReference declaredConstructors;
private volatile transient SoftReference publicConstructors;
// Intermediate results for getFields and getMethods
private volatile transient SoftReference declaredPublicFields;
private volatile transient SoftReference declaredPublicMethods;
*/
//
//
// java.lang.reflect.Field handling
//
//
// Returns an array of "root" fields. These Field objects must NOT
// be propagated to the outside world, but must instead be copied
// via ReflectionFactory.copyField.
/*KML
private Field[] privateGetDeclaredFields(boolean publicOnly) {
checkInitted();
Field[] res = null;
if (useCaches) {
if (publicOnly) {
if (declaredPublicFields != null) {
res = (Field[]) declaredPublicFields.get();
}
} else {
if (declaredFields != null) {
res = (Field[]) declaredFields.get();
}
}
if (res != null) return res;
}
// No cached value available; request value from VM
res = getDeclaredFields0(publicOnly);
if (useCaches) {
if (publicOnly) {
declaredPublicFields = new SoftReference(res);
} else {
declaredFields = new SoftReference(res);
}
}
return res;
}
*/
// Returns an array of "root" fields. These Field objects must NOT
// be propagated to the outside world, but must instead be copied
// via ReflectionFactory.copyField.
/*KML
private Field[] privateGetPublicFields(Set traversedInterfaces) {
checkInitted();
Field[] res = null;
if (useCaches) {
if (publicFields != null) {
res = (Field[]) publicFields.get();
}
if (res != null) return res;
}
// No cached value available; compute value recursively.
// Traverse in correct order for getField().
List fields = new ArrayList();
if (traversedInterfaces == null) {
traversedInterfaces = new HashSet();
}
// Local fields
Field[] tmp = privateGetDeclaredFields(true);
addAll(fields, tmp);
// Direct superinterfaces, recursively
Class[] interfaces = getInterfaces();
for (int i = 0; i < interfaces.length; i++) {
Class c = interfaces[i];
if (!traversedInterfaces.contains(c)) {
traversedInterfaces.add(c);
addAll(fields, c.privateGetPublicFields(traversedInterfaces));
}
}
// Direct superclass, recursively
if (!isInterface()) {
Class c = getSuperclass();
if (c != null) {
addAll(fields, c.privateGetPublicFields(traversedInterfaces));
}
}
res = new Field[fields.size()];
fields.toArray(res);
if (useCaches) {
publicFields = new SoftReference(res);
}
return res;
}
*/
/*KML
private static void addAll(Collection c, Field[] o) {
for (int i = 0; i < o.length; i++) {
c.add(o[i]);
}
}
*/
//
//
// java.lang.reflect.Constructor handling
//
//
// Returns an array of "root" constructors. These Constructor
// objects must NOT be propagated to the outside world, but must
// instead be copied via ReflectionFactory.copyConstructor.
/*KML
private Constructor[] privateGetDeclaredConstructors(boolean publicOnly) {
checkInitted();
Constructor[] res = null;
if (useCaches) {
if (publicOnly) {
if (publicConstructors != null) {
res = (Constructor[]) publicConstructors.get();
}
} else {
if (declaredConstructors != null) {
res = (Constructor[]) declaredConstructors.get();
}
}
if (res != null) return res;
}
// No cached value available; request value from VM
if (isInterface()) {
res = new Constructor[0];
} else {
res = getDeclaredConstructors0(publicOnly);
}
if (useCaches) {
if (publicOnly) {
publicConstructors = new SoftReference(res);
} else {
declaredConstructors = new SoftReference(res);
}
}
return res;
}
*/
//
//
// java.lang.reflect.Method handling
//
//
// Returns an array of "root" methods. These Method objects must NOT
// be propagated to the outside world, but must instead be copied
// via ReflectionFactory.copyMethod.
/*KML
private Method[] privateGetDeclaredMethods(boolean publicOnly) {
checkInitted();
Method[] res = null;
if (useCaches) {
if (publicOnly) {
if (declaredPublicMethods != null) {
res = (Method[]) declaredPublicMethods.get();
}
} else {
if (declaredMethods != null) {
res = (Method[]) declaredMethods.get();
}
}
if (res != null) return res;
}
// No cached value available; request value from VM
res = getDeclaredMethods0(publicOnly);
if (useCaches) {
if (publicOnly) {
declaredPublicMethods = new SoftReference(res);
} else {
declaredMethods = new SoftReference(res);
}
}
return res;
}
*/
static class MethodArray {
private Method[] methods;
private int length;
MethodArray() {
methods = new Method[20];
length = 0;
}
void add(Method m) {
if (length == methods.length) {
Method[] newMethods = new Method[2 * methods.length];
System.arraycopy(methods, 0, newMethods, 0, methods.length);
methods = newMethods;
}
methods[length++] = m;
}
void addAll(Method[] ma) {
for (int i = 0; i < ma.length; i++) {
add(ma[i]);
}
}
void addAll(MethodArray ma) {
for (int i = 0; i < ma.length(); i++) {
add(ma.get(i));
}
}
void addIfNotPresent(Method newMethod) {
for (int i = 0; i < length; i++) {
Method m = methods[i];
if (m == newMethod || (m != null && m.equals(newMethod))) {
return;
}
}
add(newMethod);
}
void addAllIfNotPresent(MethodArray newMethods) {
for (int i = 0; i < newMethods.length(); i++) {
Method m = newMethods.get(i);
if (m != null) {
addIfNotPresent(m);
}
}
}
int length() {
return length;
}
Method get(int i) {
return methods[i];
}
void removeByNameAndSignature(Method toRemove) {
for (int i = 0; i < length; i++) {
Method m = methods[i];
if (m != null &&
m.getReturnType() == toRemove.getReturnType() &&
m.getName() == toRemove.getName() &&
arrayContentsEq(m.getParameterTypes(),
toRemove.getParameterTypes())) {
methods[i] = null;
}
}
}
void compactAndTrim() {
int newPos = 0;
// Get rid of null slots
for (int pos = 0; pos < length; pos++) {
Method m = methods[pos];
if (m != null) {
if (pos != newPos) {
methods[newPos] = m;
}
newPos++;
}
}
if (newPos != methods.length) {
Method[] newMethods = new Method[newPos];
System.arraycopy(methods, 0, newMethods, 0, newPos);
methods = newMethods;
}
}
Method[] getArray() {
return methods;
}
}
// Returns an array of "root" methods. These Method objects must NOT
// be propagated to the outside world, but must instead be copied
// via ReflectionFactory.copyMethod.
/*KML
private Method[] privateGetPublicMethods() {
checkInitted();
Method[] res = null;
if (useCaches) {
if (publicMethods != null) {
res = (Method[]) publicMethods.get();
}
if (res != null) return res;
}
// No cached value available; compute value recursively.
// Start by fetching public declared methods
MethodArray methods = new MethodArray();
{
Method[] tmp = privateGetDeclaredMethods(true);
methods.addAll(tmp);
}
// Now recur over superclass and direct superinterfaces.
// Go over superinterfaces first so we can more easily filter
// out concrete implementations inherited from superclasses at
// the end.
MethodArray inheritedMethods = new MethodArray();
Class[] interfaces = getInterfaces();
for (int i = 0; i < interfaces.length; i++) {
inheritedMethods.addAll(interfaces[i].privateGetPublicMethods());
}
if (!isInterface()) {
Class c = getSuperclass();
if (c != null) {
MethodArray supers = new MethodArray();
supers.addAll(c.privateGetPublicMethods());
// Filter out concrete implementations of any
// interface methods
for (int i = 0; i < supers.length(); i++) {
Method m = supers.get(i);
if (m != null && !Modifier.isAbstract(m.getModifiers())) {
inheritedMethods.removeByNameAndSignature(m);
}
}
// Insert superclass's inherited methods before
// superinterfaces' to satisfy getMethod's search
// order
supers.addAll(inheritedMethods);
inheritedMethods = supers;
}
}
// Filter out all local methods from inherited ones
for (int i = 0; i < methods.length(); i++) {
Method m = methods.get(i);
inheritedMethods.removeByNameAndSignature(m);
}
methods.addAllIfNotPresent(inheritedMethods);
methods.compactAndTrim();
res = methods.getArray();
if (useCaches) {
publicMethods = new SoftReference(res);
}
return res;
}
*/
//
// Helpers for fetchers of one field, method, or constructor
//
/*KML
private Field searchFields(Field[] fields, String name) {
String internedName = name.intern();
for (int i = 0; i < fields.length; i++) {
if (fields[i].getName() == internedName) {
return getReflectionFactory().copyField(fields[i]);
}
}
return null;
}
*/
/*KML
private Field getField0(String name) throws NoSuchFieldException {
// Note: the intent is that the search algorithm this routine
// uses be equivalent to the ordering imposed by
// privateGetPublicFields(). It fetches only the declared
// public fields for each class, however, to reduce the number
// of Field objects which have to be created for the common
// case where the field being requested is declared in the
// class which is being queried.
Field res = null;
// Search declared public fields
if ((res = searchFields(privateGetDeclaredFields(true), name)) != null) {
return res;
}
// Direct superinterfaces, recursively
Class[] interfaces = getInterfaces();
for (int i = 0; i < interfaces.length; i++) {
Class c = interfaces[i];
if ((res = c.getField0(name)) != null) {
return res;
}
}
// Direct superclass, recursively
if (!isInterface()) {
Class c = getSuperclass();
if (c != null) {
if ((res = c.getField0(name)) != null) {
return res;
}
}
}
return null;
}
*/
/*KML
private static Method searchMethods(Method[] methods,
String name,
Class[] parameterTypes)
{
Method res = null;
String internedName = name.intern();
for (int i = 0; i < methods.length; i++) {
Method m = methods[i];
if (m.getName() == internedName
&& arrayContentsEq(parameterTypes, m.getParameterTypes())
&& (res == null
|| res.getReturnType().isAssignableFrom(m.getReturnType())))
res = m;
}
return (res == null ? res : getReflectionFactory().copyMethod(res));
}
*.
private Method getMethod0(String name, Class[] parameterTypes) {
// Note: the intent is that the search algorithm this routine
// uses be equivalent to the ordering imposed by
// privateGetPublicMethods(). It fetches only the declared
// public methods for each class, however, to reduce the
// number of Method objects which have to be created for the
// common case where the method being requested is declared in
// the class which is being queried.
Method res = null;
// Search declared public methods
if ((res = searchMethods(privateGetDeclaredMethods(true),
name,
parameterTypes)) != null) {
return res;
}
// Search superclass's methods
if (!isInterface()) {
Class c = getSuperclass();
if (c != null) {
if ((res = c.getMethod0(name, parameterTypes)) != null) {
return res;
}
}
}
// Search superinterfaces' methods
Class[] interfaces = getInterfaces();
for (int i = 0; i < interfaces.length; i++) {
Class c = interfaces[i];
if ((res = c.getMethod0(name, parameterTypes)) != null) {
return res;
}
}
// Not found
return null;
}
private Constructor getConstructor0(Class[] parameterTypes,
int which) throws NoSuchMethodException
{
Constructor[] constructors = privateGetDeclaredConstructors((which == Member.PUBLIC));
for (int i = 0; i < constructors.length; i++) {
if (arrayContentsEq(parameterTypes,
constructors[i].getParameterTypes())) {
return getReflectionFactory().copyConstructor(constructors[i]);
}
}
throw new NoSuchMethodException(getName() + ".
* Few programmers will have any need for this method; it is provided
* for the benefit of the JRE itself. (It allows a class to determine at
* the time that it is initialized whether assertions should be enabled.)
* Note that this method is not guaranteed to return the actual
* assertion status that was (or will be) associated with the specified
* class when it was (or will be) initialized.
*
* @return the desired assertion status of the specified class.
* @see java.lang.ClassLoader#setClassAssertionStatus
* @see java.lang.ClassLoader#setPackageAssertionStatus
* @see java.lang.ClassLoader#setDefaultAssertionStatus
* @since 1.4
*/
public boolean desiredAssertionStatus() {
ClassLoader loader = getClassLoader();
// If the loader is null this is a system class, so ask the VM
if (loader == null)
return desiredAssertionStatus0(this);
synchronized(loader) {
// If the classloader has been initialized with
// the assertion directives, ask it. Otherwise,
// ask the VM.
return (loader.classAssertionStatus == null ?
desiredAssertionStatus0(this) :
loader.desiredAssertionStatus(getName()));
}
}
// Retrieves the desired assertion status of this class from the VM
private static native boolean desiredAssertionStatus0(Class clazz);
// Fetches the factory for reflective objects
/*KML
private static ReflectionFactory getReflectionFactory() {
if (reflectionFactory == null) {
reflectionFactory = (ReflectionFactory)
java.security.AccessController.doPrivileged
(new sun.reflect.ReflectionFactory.GetReflectionFactoryAction());
}
return reflectionFactory;
}
*/
//KML private static ReflectionFactory reflectionFactory;
// To be able to query system properties as soon as they're available
private static boolean initted = false;
private static void checkInitted() {
if (initted) return;
AccessController.doPrivileged(new PrivilegedAction() {
public Object run() {
// Tests to ensure the system properties table is fully
// initialized. This is needed because reflection code is
// called very early in the initialization process (before
// command-line arguments have been parsed and therefore
// these user-settable properties installed.) We assume that
// if System.out is non-null then the System class has been
// fully initialized and that the bulk of the startup code
// has been run.
if (System.out == null) {
// java.lang.System not yet fully initialized
return null;
}
String val =
System.getProperty("sun.reflect.noCaches");
if (val != null && val.equals("true")) {
useCaches = false;
}
initted = true;
return null;
}
});
}
}
*
* A new handle is generated for the initial time the class descriptor
* is written into the stream. Future references to the class descriptor
* are written as references to the initial class descriptor instance.
*
* @see java.io.ObjectStreamClass
*/
/*KML
private static final ObjectStreamField[] serialPersistentFields =
ObjectStreamClass.NO_FIELDS;
*/
/**
* Returns the assertion status that would be assigned to this
* class if it were to be initialized at the time this method is invoked.
* If this class has had its assertion status set, the most recent
* setting will be returned; otherwise, if any package default assertion
* status pertains to this class, the most recent setting for the most
* specific pertinent package default assertion status is returned;
* otherwise, if this class is not a system class (i.e., it has a
* class loader) its class loader's default assertion status is returned;
* otherwise, the system class default assertion status is returned.
* TC_CLASS ClassDescriptor
* A ClassDescriptor is a special cased serialization of
* a java.io.ObjectStreamClass instance.
*