public static  void doAsPrivilege(String methodName,
    Servlet targetObject) throws Exception 
{
         doAsPrivilege(methodName, targetObject, null, null, null);
}

Perform work as a particular Subject. Here the work will be granted to a null subject.

 public static  void doAsPrivilege(String methodName,
    Filter targetObject) throws Exception 
{
         doAsPrivilege(methodName, targetObject, null, null);
}

Perform work as a particular Subject. Here the work will be granted to a null subject.

 public static  void doAsPrivilege(String methodName,
    Servlet targetObject,
    Class[] targetType,
    Object[] targetArguments) throws Exception 
{
    
         doAsPrivilege(methodName, 
                       targetObject, 
                       targetType, 
                       targetArguments, 
                       null);
}

Perform work as a particular Subject. Here the work will be granted to a null subject.

 public static  void doAsPrivilege(String methodName,
    Filter targetObject,
    Class[] targetType,
    Object[] targetArguments) throws Exception 
{
        doAsPrivilege(
                methodName, targetObject, targetType, targetArguments, null);
}

Perform work as a particular Subject. Here the work will be granted to a null subject.

 public static  void doAsPrivilege(String methodName,
    Servlet targetObject,
    Class[] targetType,
    Object[] targetArguments,
    Principal principal) throws Exception 
{
        Method method = null;
        Method[] methodsCache = null;
        if(objectCache.containsKey(targetObject)){
            methodsCache = (Method[])objectCache.get(targetObject);
            method = findMethod(methodsCache, methodName);
            if (method == null){
                method = createMethodAndCacheIt(methodsCache,
                                                methodName,
                                                targetObject,
                                                targetType);
            }
        } else {
            method = createMethodAndCacheIt(methodsCache,
                                            methodName,
                                            targetObject,
                                            targetType);                     
        }
        execute(method, targetObject, targetArguments, principal);
}

Perform work as a particular Subject. Here the work will be granted to a null subject.

 public static  void doAsPrivilege(String methodName,
    Filter targetObject,
    Class[] targetType,
    Object[] targetArguments,
    Principal principal) throws Exception 
{
        Method method = null;
        Method[] methodsCache = null;
        if(objectCache.containsKey(targetObject)){
            methodsCache = (Method[])objectCache.get(targetObject);
            method = findMethod(methodsCache, methodName);
            if (method == null){
                method = createMethodAndCacheIt(methodsCache,
                                                methodName,
                                                targetObject,
                                                targetType);
            }
        } else {
            method = createMethodAndCacheIt(methodsCache,
                                            methodName,
                                            targetObject,
                                            targetType);                     
        }
        execute(method, targetObject, targetArguments, principal);
}

Perform work as a particular Subject. Here the work will be granted to a null subject.

 public static boolean isPackageProtectionEnabled() 
{
        if (packageDefinitionEnabled && Globals.IS_SECURITY_ENABLED){
            return true;
        }
        return false;
}

Return the SecurityManager only if Security is enabled AND package protection mechanism is enabled.

 public static  void remove(Object cachedObject) 
{
        objectCache.remove(cachedObject);
}

Remove the object from the cache.