org.netbeans

Class JarClassLoader

java.lang.Object

java.lang.ClassLoader

org.netbeans.ProxyClassLoader

org.netbeans.JarClassLoader

public class JarClassLoader
extends ProxyClassLoader

A ProxyClassLoader capable of loading classes from a set of jar files and local directories.

Constructor Summary

Constructors

Constructor and Description
JarClassLoader(List<File> files, ClassLoader[] parents) Creates new JarClassLoader.
JarClassLoader(List<File> files, ClassLoader[] parents, boolean transitive)
JarClassLoader(List<File> files, ClassLoader[] parents, boolean transitive, Module mod) Creates new JarClassLoader.

Method Summary

Modifier and Type	Method and Description
protected Package	definePackage(String name, Manifest man, URL url)
void	destroy() Called before releasing the classloader so it can itself unregister from the global ClassLoader pool
protected Class<?>	doLoadClass(String pkgName, String name) This ClassLoader can't load anything itself.
URL	findResource(String name) This ClassLoader can't load anything itself.
Enumeration<URL>	findResources(String name)
protected PermissionCollection	getPermissions(CodeSource cs) Allows to specify the right permissions, OneModuleClassLoader does it differently.
static boolean	isArchivePopulated() Check whether the archive has already been populated during previous executions.
static void	saveArchive() Creates a new archive or updates existing archive with the necessary resources gathered so far.

Methods inherited from class org.netbeans.ProxyClassLoader

addCoveredPackages, append, definePackage, findClass, getPackage, getPackageFast, getPackages, getResource, getResources, loadClass, setSystemClassLoader, shouldDelegateResource

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, findClass, findLibrary, findLoadedClass, findResource, findSystemClass, getClassLoadingLock, getDefinedPackage, getDefinedPackages, getName, getParent, getPlatformClassLoader, getResourceAsStream, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, loadClass, registerAsParallelCapable, resolveClass, resources, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Constructor Detail

JarClassLoader

public JarClassLoader(List<File> files,
                      ClassLoader[] parents)

Creates new JarClassLoader. Gives transitive flag as true.

JarClassLoader

public JarClassLoader(List<File> files,
                      ClassLoader[] parents,
                      boolean transitive)

JarClassLoader

public JarClassLoader(List<File> files,
                      ClassLoader[] parents,
                      boolean transitive,
                      Module mod)

Creates new JarClassLoader.

Since:

org.netbeans.core/1 > 1.6

See Also:

ProxyClassLoader.ProxyClassLoader(ClassLoader[],boolean)

Method Detail

saveArchive

public static void saveArchive()

Creates a new archive or updates existing archive with the necessary resources gathered so far. It also stops gatheing and serving additional request, if it was still doing so.

isArchivePopulated

public static boolean isArchivePopulated()

Check whether the archive has already been populated during previous executions.

Returns:

true, if the archive is ready and non-empty

Since:

2.61

getPermissions

protected PermissionCollection getPermissions(CodeSource cs)

Allows to specify the right permissions, OneModuleClassLoader does it differently.

definePackage

protected Package definePackage(String name,
                                Manifest man,
                                URL url)
                         throws IllegalArgumentException

Throws:

IllegalArgumentException

doLoadClass

protected Class<?> doLoadClass(String pkgName,
                               String name)

Description copied from class: ProxyClassLoader

This ClassLoader can't load anything itself. Subclasses may override this method to do some class loading themselves. The implementation should not throw any exception, just return null if it can't load required class.

Overrides:

doLoadClass in class ProxyClassLoader

name - the name of the class

Returns:

the resulting Class object or null

findResource

public URL findResource(String name)

Description copied from class: ProxyClassLoader

This ClassLoader can't load anything itself. Subclasses may override this method to do some resource loading themselves.

Overrides:

findResource in class ProxyClassLoader

Parameters:

name - the resource name

Returns:

a URL for reading the resource, or null if the resource could not be found.

findResources

public Enumeration<URL> findResources(String name)

Overrides:

findResources in class ProxyClassLoader

destroy

public void destroy()

Description copied from class: ProxyClassLoader

Called before releasing the classloader so it can itself unregister from the global ClassLoader pool

Overrides:

destroy in class ProxyClassLoader