com.sun.jini.start
Class ClassLoaderUtil

java.lang.Object
  com.sun.jini.start.ClassLoaderUtil

public class ClassLoaderUtil

extends Object

This class provides useful utilities for creating and manipulating class loaders.

Constructor Summary

ClassLoaderUtil()

Method Summary

static void	displayClassLoaderTree(ClassLoader classloader) Utility method that displays the class loader delegation tree for the given class loader.
static void	displayContextClassLoaderTree() Utility method that displays the class loader delegation tree for the current context class loader.
static URL[]	getClasspathURLs(String classpath) Utility method that converts the components of a String representing a classpath into file URL(s).
static URL[]	getCodebaseURLs(String codebase) Utility method that converts the components of a String representing a codebase into standard URL(s).

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassLoaderUtil

public ClassLoaderUtil()

Method Detail

getClasspathURLs

public static URL[] getClasspathURLs(String classpath)
                              throws MalformedURLException

Utility method that converts the components of a String representing a classpath into file URL(s).

Parameters:

classpath - String containing components separated by path separators that represent the components making up a classpath

Returns:

a URL[] where each element of the array corresponds to one of the components in the classpath parameter

Throws:

MalformedURLException

getCodebaseURLs

public static URL[] getCodebaseURLs(String codebase)
                             throws MalformedURLException

Utility method that converts the components of a String representing a codebase into standard URL(s).

Parameters:

codebase - String containing components separated by spaces in which each component is in URL format.

Returns:

a URL[] where each element of the array corresponds to one of the components in the codebase parameter

Throws:

MalformedURLException

displayContextClassLoaderTree

public static void displayContextClassLoaderTree()

Utility method that displays the class loader delegation tree for the current context class loader. For each class loader in the tree, this method displays the locations from which that class loader will retrieve and load requested classes.

This method can be useful when debugging problems related to the receipt of exceptions such as ClassNotFoundException.

displayClassLoaderTree

public static void displayClassLoaderTree(ClassLoader classloader)

Utility method that displays the class loader delegation tree for the given class loader. For each class loader in the tree, this method displays the locations from which that class loader will retrieve and load requested classes.

This method can be useful when debugging problems related to the receipt of exceptions such as ClassNotFoundException.

Parameters:

classloader - ClassLoader instance whose delegation tree is to be displayed