@Deprecated(since="17", forRemoval=true) public final class AccessControlContext extends Object
AccessControlContext is used to make system resource access decisions based on the context it encapsulates. More specifically, it encapsulates a context and has a single method, checkPermission, that is equivalent to the checkPermission method in the AccessController class, with one difference: The checkPermission method makes access decisions based on the context it encapsulates, rather than that of the current execution thread.
Thus, the purpose of AccessControlContext is for those situations where a security check that should be made within a given context actually needs to be done from within a different context (for example, from within a worker thread).
An AccessControlContext is created by calling the AccessController.getContext method. The getContext method takes a "snapshot" of the current calling context, and places it in an AccessControlContext object, which it returns. A sample call is the following:
AccessControlContext acc = AccessController.getContext()
Code within a different context can subsequently call the checkPermission method on the previously-saved AccessControlContext object. A sample call is the following:
acc.checkPermission(permission)
| Constructor | Description |
|---|---|
AccessControlContext |
Deprecated, for removal: This API element is subject to removal in a future version. Create a new AccessControlContext with the given AccessControlContext and DomainCombiner. |
AccessControlContext |
Deprecated, for removal: This API element is subject to removal in a future version. Create an AccessControlContext with the given array of ProtectionDomain objects. |
| Modifier and Type | Method | Description |
|---|---|---|
void |
checkPermission |
Deprecated, for removal: This API element is subject to removal in a future version. Determines whether the access request indicated by the specified permission should be allowed or denied, based on the security policy currently in effect, and the context in this object. |
boolean |
equals |
Deprecated, for removal: This API element is subject to removal in a future version. Checks two AccessControlContext objects for equality. |
DomainCombiner |
getDomainCombiner() |
Deprecated, for removal: This API element is subject to removal in a future version. Get the DomainCombiner associated with this AccessControlContext. |
int |
hashCode() |
Deprecated, for removal: This API element is subject to removal in a future version. Returns the hash code value for this context. |
public AccessControlContext(ProtectionDomain[] context)
AccessControlContext with the given array of ProtectionDomain objects. Context must not be null. Duplicate domains will be removed from the context.context - the ProtectionDomain objects associated with this context. The non-duplicate domains are copied from the array. Subsequent changes to the array will not affect this AccessControlContext.NullPointerException - if context is null
public AccessControlContext(AccessControlContext acc, DomainCombiner combiner)
AccessControlContext with the given AccessControlContext and DomainCombiner. This constructor associates the provided DomainCombiner with the provided AccessControlContext.acc - the AccessControlContext associated with the provided DomainCombiner.combiner - the DomainCombiner to be associated with the provided AccessControlContext.NullPointerException - if the provided context is null.SecurityException - if a security manager is installed and the caller does not have the "createAccessControlContext" SecurityPermission
public DomainCombiner getDomainCombiner()
DomainCombiner associated with this AccessControlContext.DomainCombiner associated with this AccessControlContext, or null if there is none.SecurityException - if a security manager is installed and the caller does not have the "getDomainCombiner" SecurityPermission
public void checkPermission(Permission perm) throws AccessControlException
ProtectionDomain in the context implies the permission. Otherwise the request is denied. This method quietly returns if the access request is permitted, or throws a suitable AccessControlException otherwise.
perm - the requested permission.AccessControlException - if the specified permission is not permitted, based on the current security policy and the context encapsulated by this object.NullPointerException - if the permission to check for is null.public boolean equals(Object obj)
AccessControlContext objects for equality. Checks that obj is an AccessControlContext and has the same set of ProtectionDomain objects as this context.public int hashCode()
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Documentation extracted from Debian's OpenJDK Development Kit package.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/security/AccessControlContext.html