test.contrib.classloader
Class UniversalClassLoader

java.lang.Object
  java.lang.ClassLoader
      java.security.SecureClassLoader
          test.contrib.classloader.UniversalClassLoader

public class UniversalClassLoader
extends java.security.SecureClassLoader

Constructor Summary

UniversalClassLoader(Classpath path, java.lang.ClassLoader parent)
Constructs a new UniversalClassLoader for the given Classpath.

Method Summary

boolean	addPath(Classpath path) Adds a new Classpath to this Classloader
protected java.lang.Package	definePackage(java.lang.String name, java.util.jar.Manifest man, java.net.URL url) Defines a new package by name in this ClassLoader.
protected java.lang.Class<?>	findClass(java.lang.String name)
protected java.lang.String	findLibrary(java.lang.String libname)
java.net.URL	findResource(java.lang.String name)

Methods inherited from class java.security.SecureClassLoader

defineClass, defineClass, getPermissions

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLoadedClass, findResources, findSystemClass, getPackage, getPackages, getParent, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, loadClass, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UniversalClassLoader

public UniversalClassLoader(Classpath path,
                            java.lang.ClassLoader parent)

Constructs a new UniversalClassLoader for the given Classpath. The Classpaths will be searched in the order specified for classes and resources after first searching in the specified parent class loader.

If there is a security manager, this method first calls the security manager's checkCreateClassLoader method to ensure creation of a class loader is allowed.

Parameters:

path - the main classpath

parent - the parent classloader

Method Detail

findLibrary

protected java.lang.String findLibrary(java.lang.String libname)

Overrides:

findLibrary in class java.lang.ClassLoader

See Also:

ClassLoader.findLibrary(java.lang.String)

addPath

public boolean addPath(Classpath path)

Adds a new Classpath to this Classloader

Parameters:

path - the new classpath

Returns:

TRUE if added successfuly and FALSE if the classpath already exist or NULL

findResource

public java.net.URL findResource(java.lang.String name)

Overrides:

findResource in class java.lang.ClassLoader

See Also:

ClassLoader.findResource(java.lang.String)

findClass

protected java.lang.Class<?> findClass(java.lang.String name)
                                throws java.lang.ClassNotFoundException

Overrides:

findClass in class java.lang.ClassLoader

Throws:

java.lang.ClassNotFoundException

See Also:

ClassLoader.findClass(java.lang.String)

definePackage

protected java.lang.Package definePackage(java.lang.String name,
                                          java.util.jar.Manifest man,
                                          java.net.URL url)
                                   throws java.lang.IllegalArgumentException

Defines a new package by name in this ClassLoader. The attributes contained in the specified Manifest will be used to obtain package version and sealing information. For sealed packages, the additional URL specifies the code source URL from which the package was loaded.

Parameters:

name - the package name

man - the Manifest containing package version and sealing information

url - the code source url for the package, or null if none

Returns:

the newly defined Package object

Throws:

java.lang.IllegalArgumentException - if the package name duplicates an existing package either in this class loader or one of its ancestors