| Interface | Description | 
|---|---|
| DynamicPolicy | 
 Interface implemented by security policy providers that may support dynamic granting of
 permissions at run-time. 
 | 
| SecurityContextSource | 
 Interface that a security manager or policy provider can optionally implement in order to support
 the saving and restoring of custom security context state. 
 | 
| Class | Description | 
|---|---|
| DynamicPolicyProvider | 
 Security policy provider that supports dynamic granting of permissions at run-time. 
 | 
| PolicyFileProvider | 
 Security policy provider that wraps the J2SE(TM) default 
 "PolicyFile" security policy provider distributed as part of the Java(TM) 2 Platform,
 Standard Edition. 
 | 
| UmbrellaGrantPermission | 
 Permission that is specially intepreted by  
PolicyFileProvider as shorthand for a GrantPermission covering all permissions authorized to a given protection
 domain. | 
| Exception | Description | 
|---|---|
| PolicyInitializationException | 
 Exception indicating failed initialization of a security policy provider. 
 | 
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