Class GuardClassLoader

java.lang.Object

java.lang.ClassLoader

org.codehaus.commons.compiler.sandbox.GuardClassLoader

public final class GuardClassLoader
extends ClassLoader

Makes Guard and the types of its signatures and exceptions (SandboxLimitExceededError, SandboxLimits), including their nested classes, visible to the code that JANINO instruments, even if the parent class loader cannot see them (e.g. because it is the platform class loader), and makes sure that the code uses the same Guard class as the SandboxExecutor. All other classes are loaded through the parent class loader.

Method Summary

Modifier and Type	Method	Description
static ClassLoader	create(ClassLoader parent)
static Class<?>	getGuardClass(String className)
protected Class<?>	loadClass(String name, boolean resolve)

Methods inherited from class ClassLoader

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

Methods inherited from class Object

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

Method Details

create

public static ClassLoader create(@Nullable
 ClassLoader parent)

Parameters:

parent - null means the bootstrap class loader

getGuardClass

@Nullable
public static Class<?> getGuardClass(String className)
                              throws ClassNotFoundException

Returns:

The named class if it is one of the classes that this class loader provides (see above), otherwise null

Throws:

ClassNotFoundException - The name designates a nested class of these classes that does not exist

loadClass

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

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException