org.mdiutil.lang.loader

Class NestedURLClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.mdiutil.lang.loader.NestedURLClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable

public class NestedURLClassLoader
extends URLClassLoader

An URLClassLoader which is able to load classes in jars inside a jar.

Since:

1.2.23

Constructor Summary

Constructors

Constructor and Description
NestedURLClassLoader(URL[] urls) Constructs a new NestedURLClassLoader for the specified URLs using the default delegation parent ClassLoader.
NestedURLClassLoader(URL[] urls, ClassLoader parent) Constructs a new NestedURLClassLoader for the specified URLs using a specified parent ClassLoader.

Method Summary

Modifier and Type	Method and Description
protected void	addURL(URL url)
void	filterPackages(boolean excludingFilter, Set<String> filteredPackages) Exclude or include some packages from the special class loading used by this class.
void	filterPackages(boolean excludingFilter, String... filteredPackages) Exclude or include some packages from the special class loading used by this class.
protected Class<?>	findClass(String name)
URL	findResource(String name)
Enumeration<URL>	findResources(String name)
Class<?>	loadClass(String name, boolean resolve)

Methods inherited from class java.net.URLClassLoader

close, definePackage, getPermissions, getResourceAsStream, getURLs, newInstance, newInstance

Methods inherited from class java.security.SecureClassLoader

defineClass, defineClass

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findSystemClass, getClassLoadingLock, getPackage, getPackages, getParent, getResource, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, registerAsParallelCapable, 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

NestedURLClassLoader

public NestedURLClassLoader(URL[] urls)

Constructs a new NestedURLClassLoader for the specified URLs using the default delegation parent ClassLoader.

Parameters:

urls - the URLs from which to load classes and resources

NestedURLClassLoader

public NestedURLClassLoader(URL[] urls,
                            ClassLoader parent)

Constructs a new NestedURLClassLoader for the specified URLs using a specified parent ClassLoader.

Parameters:

urls - the URLs from which to load classes and resources

parent - the parent ClassLoader

Method Detail

filterPackages

public void filterPackages(boolean excludingFilter,
                           Set<String> filteredPackages)

Exclude or include some packages from the special class loading used by this class.

Algorithm

• If excludingFilter is true: packages which are in the Set will be loaded using the default behavior of the URLClassLoader, all other packages will be loaded using the special behavior of this Class
• If excludingFilter is false: packages which are not in the set will be loaded using the default behavior of the URLClassLoader, all packages in the Set will be loaded using the special behavior of this Class

Parameters:

excludingFilter - true if the packages will be excluded if they belong to the packages Set

filteredPackages - the packages

filterPackages

public void filterPackages(boolean excludingFilter,
                           String... filteredPackages)

Exclude or include some packages from the special class loading used by this class.

Parameters:

excludingFilter - true if the packages will be excluded if they belong to the packages set

filteredPackages - the packages

addURL

protected void addURL(URL url)

Overrides:

addURL in class URLClassLoader

loadClass

public Class<?> loadClass(String name,
                          boolean resolve)
                   throws ClassNotFoundException

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException

findClass

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

Overrides:

findClass in class URLClassLoader

Throws:

ClassNotFoundException

findResource

public URL findResource(String name)

Overrides:

findResource in class URLClassLoader

findResources

public Enumeration<URL> findResources(String name)

Overrides:

findResources in class URLClassLoader