The {@link #checkPermission(Permission) checkPermission} method
* determines whether the access request indicated by a specified
* permission should be granted or denied. A sample call appears
- * below. In this example, checkPermission will determine
+ * below. In this example, {@code checkPermission} will determine
* whether or not to grant "read" access to the file named "testFile" in
* the "/temp" directory.
*
@@ -61,7 +61,7 @@
*
*
*
If a requested access is allowed,
- * checkPermission returns quietly. If denied, an
+ * {@code checkPermission} returns quietly. If denied, an
* AccessControlException is
* thrown. AccessControlException can also be thrown if the requested
* permission is of an incorrect type or contains an invalid value.
@@ -69,8 +69,8 @@
*
* Suppose the current thread traversed m callers, in the order of caller 1
* to caller 2 to caller m. Then caller m invoked the
- * checkPermission method.
- * The checkPermission method determines whether access
+ * {@code checkPermission} method.
+ * The {@code checkPermission} method determines whether access
* is granted or denied based on the following algorithm:
*
*
{@code
@@ -102,20 +102,20 @@
*
* A caller can be marked as being "privileged"
* (see {@link #doPrivileged(PrivilegedAction) doPrivileged} and below).
- * When making access control decisions, the checkPermission
+ * When making access control decisions, the {@code checkPermission}
* method stops checking if it reaches a caller that
- * was marked as "privileged" via a doPrivileged
+ * was marked as "privileged" via a {@code doPrivileged}
* call without a context argument (see below for information about a
* context argument). If that caller's domain has the
* specified permission and at least one limiting permission argument (if any)
* implies the requested permission, no further checking is done and
- * checkPermission
+ * {@code checkPermission}
* returns quietly, indicating that the requested access is allowed.
* If that domain does not have the specified permission, an exception
* is thrown, as usual. If the caller's domain had the specified permission
* but it was not implied by any limiting permission arguments given in the call
- * to doPrivileged then the permission checking continues
- * until there are no more callers or another doPrivileged
+ * to {@code doPrivileged} then the permission checking continues
+ * until there are no more callers or another {@code doPrivileged}
* call matches the requested permission and returns normally.
*
*
The normal use of the "privileged" feature is as follows. If you
@@ -137,17 +137,17 @@
*
*
* PrivilegedAction is an interface with a single method, named
- * run.
+ * {@code run}.
* The above example shows creation of an implementation
* of that interface; a concrete implementation of the
- * run method is supplied.
- * When the call to doPrivileged is made, an
+ * {@code run} method is supplied.
+ * When the call to {@code doPrivileged} is made, an
* instance of the PrivilegedAction implementation is passed
- * to it. The doPrivileged method calls the
- * run method from the PrivilegedAction
+ * to it. The {@code doPrivileged} method calls the
+ * {@code run} method from the PrivilegedAction
* implementation after enabling privileges, and returns the
- * run method's return value as the
- * doPrivileged return value (which is
+ * {@code run} method's return value as the
+ * {@code doPrivileged} return value (which is
* ignored in this example).
*
*
If you need to return a value, you can do something like the following:
@@ -164,11 +164,11 @@
* ...normal code here...
* }}
*
- * If the action performed in your run method could
- * throw a "checked" exception (those listed in the throws clause
+ *
If the action performed in your {@code run} method could
+ * throw a "checked" exception (those listed in the {@code throws} clause
* of a method), then you need to use the
- * PrivilegedExceptionAction interface instead of the
- * PrivilegedAction interface:
+ * {@code PrivilegedExceptionAction} interface instead of the
+ * {@code PrivilegedAction} interface:
*
*
{@code
* somemethod() throws FileNotFoundException {
@@ -191,18 +191,18 @@
*
* Be *very* careful in your use of the "privileged" construct, and
* always remember to make the privileged code section as small as possible.
- * You can pass Permission arguments to further limit the
+ * You can pass {@code Permission} arguments to further limit the
* scope of the "privilege" (see below).
*
*
- *
Note that checkPermission always performs security checks
+ *
Note that {@code checkPermission} always performs security checks
* within the context of the currently executing thread.
* Sometimes a security check that should be made within a given context
* will actually need to be done from within a
* different context (for example, from within a worker thread).
* The {@link #getContext() getContext} method and
* AccessControlContext class are provided
- * for this situation. The getContext method takes a "snapshot"
+ * for this situation. The {@code 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:
@@ -214,7 +214,7 @@
*
*
*
- * AccessControlContext itself has a checkPermission method
+ * AccessControlContext itself has a {@code checkPermission} method
* that makes access decisions based on the context it encapsulates,
* rather than that of the current execution thread.
* Code within a different context can thus call that method on the
@@ -230,7 +230,7 @@
*
There are also times where you don't know a priori which permissions
* to check the context against. In these cases you can use the
* doPrivileged method that takes a context. You can also limit the scope
- * of the privileged code by passing additional Permission
+ * of the privileged code by passing additional {@code Permission}
* parameters.
*
*
{@code
@@ -248,12 +248,12 @@
* }, acc, new FilePermission("/temp/*", read));
* ...normal code here...
* }}
- * Passing a limiting Permission argument of an instance of
- * AllPermission is equivalent to calling the equivalent
- * doPrivileged method without limiting Permission
- * arguments. Passing a zero length array of Permission disables
+ *
Passing a limiting {@code Permission} argument of an instance of
+ * {@code AllPermission} is equivalent to calling the equivalent
+ * {@code doPrivileged} method without limiting {@code Permission}
+ * arguments. Passing a zero length array of {@code Permission} disables
* the code privileges so that checking always continues beyond the caller of
- * that doPrivileged method.
+ * that {@code doPrivileged} method.
*
* @see AccessControlContext
*
@@ -269,11 +269,11 @@
private AccessController() { }
/**
- * Performs the specified PrivilegedAction with privileges
+ * Performs the specified {@code PrivilegedAction} with privileges
* enabled. The action is performed with all of the permissions
* possessed by the caller's protection domain.
*
- *
If the action's run method throws an (unchecked)
+ *
If the action's {@code run} method throws an (unchecked) * exception, it will propagate through this method. * *
Note that any DomainCombiner associated with the current
@@ -281,9 +281,9 @@
*
* @param action the action to be performed.
*
- * @return the value returned by the action's If the action's If the action's {@code run} method throws an (unchecked)
* exception, it will propagate through this method.
*
* This method preserves the current AccessControlContext's
@@ -307,9 +307,9 @@
*
* @param action the action to be performed.
*
- * @return the value returned by the action's
- * If the action's
- * If the action's This method preserves the current AccessControlContext's
@@ -434,16 +434,16 @@
* representing the restriction to be applied to the
* caller's domain's privileges before performing
* the specified action. If the context is
- * If the action's If the action's {@code run} method throws an unchecked
* exception, it will propagate through this method.
*
* Note that any DomainCombiner associated with the current
@@ -481,11 +481,11 @@
*
* @param action the action to be performed
*
- * @return the value returned by the action's If the action's If the action's {@code run} method throws an unchecked
* exception, it will propagate through this method.
*
* This method preserves the current AccessControlContext's
@@ -511,11 +511,11 @@
*
* @param action the action to be performed.
*
- * @return the value returned by the action's
- * If the action's
- * If the action's This method preserves the current AccessControlContext's
@@ -681,18 +681,18 @@
* representing the restriction to be applied to the
* caller's domain's privileges before performing
* the specified action. If the context is
- * run method.
+ * @return the value returned by the action's {@code run} method.
*
- * @exception NullPointerException if the action is null
+ * @exception NullPointerException if the action is {@code null}
*
* @see #doPrivileged(PrivilegedAction,AccessControlContext)
* @see #doPrivileged(PrivilegedExceptionAction)
@@ -295,11 +295,11 @@
public static native PrivilegedAction with privileges
+ * Performs the specified {@code PrivilegedAction} with privileges
* enabled. The action is performed with all of the permissions
* possessed by the caller's protection domain.
*
- * run method throws an (unchecked)
+ * run method.
+ * @return the value returned by the action's {@code run} method.
*
- * @exception NullPointerException if the action is null
+ * @exception NullPointerException if the action is {@code null}
*
* @see #doPrivileged(PrivilegedAction)
* @see java.security.DomainCombiner
@@ -364,17 +364,17 @@
/**
- * Performs the specified PrivilegedAction with privileges
+ * Performs the specified {@code PrivilegedAction} with privileges
* enabled and restricted by the specified
- * AccessControlContext and with a privilege scope limited
- * by specified Permission arguments.
+ * {@code AccessControlContext} and with a privilege scope limited
+ * by specified {@code Permission} arguments.
*
* The action is performed with the intersection of the permissions
* possessed by the caller's protection domain, and those possessed
* by the domains represented by the specified
- * AccessControlContext.
+ * {@code AccessControlContext}.
* run method throws an (unchecked) exception,
+ * If the action's {@code run} method throws an (unchecked) exception,
* it will propagate through this method.
*
* @param action the action to be performed.
@@ -382,16 +382,16 @@
* representing the restriction to be applied to the
* caller's domain's privileges before performing
* the specified action. If the context is
- * null,
+ * {@code null},
* then no additional restriction is applied.
- * @param perms the Permission arguments which limit the
+ * @param perms the {@code Permission} arguments which limit the
* scope of the caller's privileges. The number of arguments
* is variable.
*
- * @return the value returned by the action's run method.
+ * @return the value returned by the action's {@code run} method.
*
* @throws NullPointerException if action or perms or any element of
- * perms is null
+ * perms is {@code null}
*
* @see #doPrivileged(PrivilegedAction)
* @see #doPrivileged(PrivilegedExceptionAction,AccessControlContext)
@@ -413,17 +413,17 @@
/**
- * Performs the specified PrivilegedAction with privileges
+ * Performs the specified {@code PrivilegedAction} with privileges
* enabled and restricted by the specified
- * AccessControlContext and with a privilege scope limited
- * by specified Permission arguments.
+ * {@code AccessControlContext} and with a privilege scope limited
+ * by specified {@code Permission} arguments.
*
* The action is performed with the intersection of the permissions
* possessed by the caller's protection domain, and those possessed
* by the domains represented by the specified
- * AccessControlContext.
+ * {@code AccessControlContext}.
* run method throws an (unchecked) exception,
+ * If the action's {@code run} method throws an (unchecked) exception,
* it will propagate through this method.
*
* null,
+ * {@code null},
* then no additional restriction is applied.
- * @param perms the Permission arguments which limit the
+ * @param perms the {@code Permission} arguments which limit the
* scope of the caller's privileges. The number of arguments
* is variable.
*
- * @return the value returned by the action's run method.
+ * @return the value returned by the action's {@code run} method.
*
* @throws NullPointerException if action or perms or any element of
- * perms is null
+ * perms is {@code null}
*
* @see #doPrivileged(PrivilegedAction)
* @see #doPrivileged(PrivilegedExceptionAction,AccessControlContext)
@@ -469,11 +469,11 @@
}
/**
- * Performs the specified PrivilegedExceptionAction with
+ * Performs the specified {@code PrivilegedExceptionAction} with
* privileges enabled. The action is performed with all of the
* permissions possessed by the caller's protection domain.
*
- * run method throws an unchecked
+ * run method
+ * @return the value returned by the action's {@code run} method
*
* @exception PrivilegedActionException if the specified action's
- * run method threw a checked exception
- * @exception NullPointerException if the action is null
+ * {@code run} method threw a checked exception
+ * @exception NullPointerException if the action is {@code null}
*
* @see #doPrivileged(PrivilegedAction)
* @see #doPrivileged(PrivilegedExceptionAction,AccessControlContext)
@@ -499,11 +499,11 @@
/**
- * Performs the specified PrivilegedExceptionAction with
+ * Performs the specified {@code PrivilegedExceptionAction} with
* privileges enabled. The action is performed with all of the
* permissions possessed by the caller's protection domain.
*
- * run method throws an unchecked
+ * run method
+ * @return the value returned by the action's {@code run} method
*
* @exception PrivilegedActionException if the specified action's
- * run method threw a checked exception
- * @exception NullPointerException if the action is null
+ * {@code run} method threw a checked exception
+ * @exception NullPointerException if the action is {@code null}
*
* @see #doPrivileged(PrivilegedAction)
* @see #doPrivileged(PrivilegedExceptionAction,AccessControlContext)
@@ -609,17 +609,17 @@
/**
- * Performs the specified PrivilegedExceptionAction with
+ * Performs the specified {@code PrivilegedExceptionAction} with
* privileges enabled and restricted by the specified
- * AccessControlContext and with a privilege scope limited by
- * specified Permission arguments.
+ * {@code AccessControlContext} and with a privilege scope limited by
+ * specified {@code Permission} arguments.
*
* The action is performed with the intersection of the permissions
* possessed by the caller's protection domain, and those possessed
* by the domains represented by the specified
- * AccessControlContext.
+ * {@code AccessControlContext}.
* run method throws an (unchecked) exception,
+ * If the action's {@code run} method throws an (unchecked) exception,
* it will propagate through this method.
*
* @param action the action to be performed.
@@ -627,18 +627,18 @@
* representing the restriction to be applied to the
* caller's domain's privileges before performing
* the specified action. If the context is
- * null,
+ * {@code null},
* then no additional restriction is applied.
- * @param perms the Permission arguments which limit the
+ * @param perms the {@code Permission} arguments which limit the
* scope of the caller's privileges. The number of arguments
* is variable.
*
- * @return the value returned by the action's run method.
+ * @return the value returned by the action's {@code run} method.
*
* @throws PrivilegedActionException if the specified action's
- * run method threw a checked exception
+ * {@code run} method threw a checked exception
* @throws NullPointerException if action or perms or any element of
- * perms is null
+ * perms is {@code null}
*
* @see #doPrivileged(PrivilegedAction)
* @see #doPrivileged(PrivilegedAction,AccessControlContext)
@@ -660,17 +660,17 @@
/**
- * Performs the specified PrivilegedExceptionAction with
+ * Performs the specified {@code PrivilegedExceptionAction} with
* privileges enabled and restricted by the specified
- * AccessControlContext and with a privilege scope limited by
- * specified Permission arguments.
+ * {@code AccessControlContext} and with a privilege scope limited by
+ * specified {@code Permission} arguments.
*
* The action is performed with the intersection of the permissions
* possessed by the caller's protection domain, and those possessed
* by the domains represented by the specified
- * AccessControlContext.
+ * {@code AccessControlContext}.
* run method throws an (unchecked) exception,
+ * If the action's {@code run} method throws an (unchecked) exception,
* it will propagate through this method.
*
* null,
+ * {@code null},
* then no additional restriction is applied.
- * @param perms the Permission arguments which limit the
+ * @param perms the {@code Permission} arguments which limit the
* scope of the caller's privileges. The number of arguments
* is variable.
*
- * @return the value returned by the action's run method.
+ * @return the value returned by the action's {@code run} method.
*
* @throws PrivilegedActionException if the specified action's
- * run method threw a checked exception
+ * {@code run} method threw a checked exception
* @throws NullPointerException if action or perms or any element of
- * perms is null
+ * perms is {@code null}
*
* @see #doPrivileged(PrivilegedAction)
* @see #doPrivileged(PrivilegedAction,AccessControlContext)
@@ -770,14 +770,14 @@
* This method quietly returns if the access request
* is permitted, or throws an AccessControlException otherwise. The
* getPermission method of the AccessControlException returns the
- * perm Permission object instance.
+ * {@code perm} Permission object instance.
*
* @param perm the requested permission.
*
* @exception AccessControlException if the specified permission
* is not permitted, based on the current security policy.
* @exception NullPointerException if the specified permission
- * is null and is checked based on the
+ * is {@code null} and is checked based on the
* security policy currently in effect.
*/