Summary: Methods | Protected Methods | Inherited Methods | [Expand All]

public final class

MethodUtil

extends SecureClassLoader

java.lang.Object
↳	java.lang.ClassLoader
	↳	java.security.SecureClassLoader
		↳	sun.reflect.misc.MethodUtil

Summary

Public Methods
static Method	getMethod(Class cls, String name, Class[] args)
static Method[]	getMethods(Class cls)
static Method[]	getPublicMethods(Class cls)
static Object	invoke(Method m, Object obj, Object[] params)

Protected Methods
Class	findClass(String name) Finds the class with the specified binary name.
PermissionCollection	getPermissions(CodeSource codesource) Returns the permissions for the given CodeSource object.
synchronized Class	loadClass(String name, boolean resolve) Loads the class with the specified binary name.

[Expand]

Inherited Methods

From class java.security.SecureClassLoader

From class java.lang.ClassLoader

synchronized void	clearAssertionStatus() Sets the default assertion status for this class loader to `false` and discards any package defaults or class assertion status settings associated with the class loader.
final Class<?>	defineClass(String name, ByteBuffer b, ProtectionDomain protectionDomain) Converts a java.nio.ByteBuffer `ByteBuffer` into an instance of class `Class`, with an optional `ProtectionDomain`.
final Class<?>	defineClass(String name, byte[] b, int off, int len, ProtectionDomain protectionDomain) Converts an array of bytes into an instance of class `Class`, with an optional `ProtectionDomain`.
final Class<?>	defineClass(String name, byte[] b, int off, int len) Converts an array of bytes into an instance of class `Class`.
final Class<?>	defineClass(byte[] b, int off, int len) This method is deprecated. Replaced by `defineClass(String, byte[], int, int)`
Package	definePackage(String name, String specTitle, String specVersion, String specVendor, String implTitle, String implVersion, String implVendor, URL sealBase) Defines a package by name in this `ClassLoader`.
Class<?>	findClass(String name) Finds the class with the specified binary name.
String	findLibrary(String libname) Returns the absolute path name of a native library.
final Class<?>	findLoadedClass(String name) Returns the class with the given binary name if this loader has been recorded by the Java virtual machine as an initiating loader of a class with that binary name.
URL	findResource(String name) Finds the resource with the given name.
Enumeration<URL>	findResources(String name) Returns an enumeration of `URL` objects representing all the resources with the given name.
final Class<?>	findSystemClass(String name) Finds a class with the specified binary name, loading it if necessary.
Package	getPackage(String name) Returns a `Package` that has been defined by this class loader or any of its ancestors.
Package[]	getPackages() Returns all of the `Packages` defined by this class loader and its ancestors.
final ClassLoader	getParent() Returns the parent class loader for delegation.
URL	getResource(String name) Finds the resource with the given name.
InputStream	getResourceAsStream(String name) Returns an input stream for reading the specified resource.
Enumeration<URL>	getResources(String name) Finds all the resources with the given name.
static ClassLoader	getSystemClassLoader() Returns the system class loader for delegation.
static URL	getSystemResource(String name) Find a resource of the specified name from the search path used to load classes.
static InputStream	getSystemResourceAsStream(String name) Open for reading, a resource of the specified name from the search path used to load classes.
static Enumeration<URL>	getSystemResources(String name) Finds all resources of the specified name from the search path used to load classes.
synchronized Class<?>	loadClass(String name, boolean resolve) Loads the class with the specified binary name.
Class<?>	loadClass(String name) Loads the class with the specified binary name.
final void	resolveClass(Class<?> c) Links the specified class.
synchronized void	setClassAssertionStatus(String className, boolean enabled) Sets the desired assertion status for the named top-level class in this class loader and any nested classes contained therein.
synchronized void	setDefaultAssertionStatus(boolean enabled) Sets the default assertion status for this class loader.
synchronized void	setPackageAssertionStatus(String packageName, boolean enabled) Sets the package default assertion status for the named package.
final void	setSigners(Class<?> c, Object[] signers) Sets the signers of a class.

From class java.lang.Object

Object	clone() Creates and returns a copy of this object.
boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
final Class<?>	getClass() Returns the runtime class of this `Object`.
int	hashCode() Returns a hash code value for the object.
final void	notify() Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
String	toString() Returns a string representation of the object.
final void	wait() Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
final void	wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
final void	wait(long timeout) Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.

Public Methods

public static Method getMethod (Class cls, String name, Class[] args)

Throws

NoSuchMethodException

public static Method[] getMethods (Class cls)

public static Method[] getPublicMethods (Class cls)

public static Object invoke (Method m, Object obj, Object[] params)

Throws

IllegalAccessException
InvocationTargetException

Protected Methods

protected Class findClass (String name)

Finds the class with the specified binary name. This method should be overridden by class loader implementations that follow the delegation model for loading classes, and will be invoked by the loadClass method after checking the parent class loader for the requested class. The default implementation throws a ClassNotFoundException.

Parameters

name	The binary name of the class

Returns

The resulting Class object

Throws

ClassNotFoundException

protected PermissionCollection getPermissions (CodeSource codesource)

Returns the permissions for the given CodeSource object.

This method is invoked by the defineClass method which takes a CodeSource as an argument when it is constructing the ProtectionDomain for the class being defined.

Parameters

codesource	the codesource.

Returns

the permissions granted to the codesource.

protected synchronized Class loadClass (String name, boolean resolve)

Loads the class with the specified binary name. The default implementation of this method searches for classes in the following order:

Invoke findLoadedClass(String) to check if the class has already been loaded.
Invoke the loadClass method on the parent class loader. If the parent is null the class loader built-in to the virtual machine is used, instead.
Invoke the findClass(String) method to find the class.

If the class was found using the above steps, and the resolve flag is true, this method will then invoke the resolveClass(Class) method on the resulting Class object.

Subclasses of ClassLoader are encouraged to override findClass(String), rather than this method.

Parameters

name	The binary name of the class
resolve	If `true` then resolve the class

Returns

The resulting Class object

Throws

ClassNotFoundException

Classes

MethodUtil

Summary

Public Methods

public static Method getMethod (Class cls, String name, Class[] args)

Throws

public static Method[] getMethods (Class cls)

public static Method[] getPublicMethods (Class cls)

public static Object invoke (Method m, Object obj, Object[] params)

Throws

Protected Methods

protected Class findClass (String name)

Parameters

Returns

Throws

protected PermissionCollection getPermissions (CodeSource codesource)

Parameters

Returns

protected synchronized Class loadClass (String name, boolean resolve)

Parameters

Returns

Throws