AccessController

AI-generated Key Takeaways

• AccessController is legacy security code and should not be used in new code.

• It provides methods to check permissions and execute privileged actions with or without a specific AccessControlContext.

• doPrivileged methods execute code with potentially elevated privileges, bypassing some security checks.

• checkPermission verifies if the current security context has a specific permission.

• getContext method returns the current security context.

public final class AccessController extends Object

Legacy security code; do not use.

Public Method Summary

static void	checkPermission(Permission perm)
static <T> T	doPrivileged(PrivilegedExceptionAction<T> action, AccessControlContext context) Calls action.run().
static <T> T	doPrivileged(PrivilegedExceptionAction<T> action) Calls action.run().
static <T> T	doPrivileged(PrivilegedAction<T> action) Calls action.run().
static <T> T	doPrivileged(PrivilegedAction<T> action, AccessControlContext context) Calls action.run().
static <T> T	doPrivilegedWithCombiner(PrivilegedAction<T> action) Calls action.run().
static <T> T	doPrivilegedWithCombiner(PrivilegedExceptionAction<T> action) Calls action.run().
static AccessControlContext	getContext()

Inherited Method Summary

From class java.lang.Object

Object	clone() Creates and returns a copy of this Object.
boolean	equals(Object obj) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of Class that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait(long timeout, int nanos) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.
final void	wait(long timeout) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.
final void	wait() Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.

Public Methods

public static void checkPermission (Permission perm)

Parameters

perm

Throws

AccessControlException

public static T doPrivileged (PrivilegedExceptionAction<T> action, AccessControlContext context)

Calls action.run().

Parameters

action
context

Throws

PrivilegedActionException

public static T doPrivileged (PrivilegedExceptionAction<T> action)

Calls action.run().

Parameters

action

Throws

PrivilegedActionException

public static T doPrivileged (PrivilegedAction<T> action)

Calls action.run().

Parameters

action

public static T doPrivileged (PrivilegedAction<T> action, AccessControlContext context)

Calls action.run().

Parameters

action
context

public static T doPrivilegedWithCombiner (PrivilegedAction<T> action)

Calls action.run().

Parameters

action

public static T doPrivilegedWithCombiner (PrivilegedExceptionAction<T> action)

Calls action.run().

Parameters

action

Throws

PrivilegedActionException

public static AccessControlContext getContext ()