Module jdk.jfr
Package jdk.jfr

# Class FlightRecorderPermission

java.lang.Object
java.security.Permission
java.security.BasicPermission
jdk.jfr.FlightRecorderPermission

All Implemented Interfaces:
  `Serializable`, `Guard`

public final class FlightRecorderPermission extends BasicPermission
Permission for controlling access to Flight Recorder.

The following table provides a summary of what the permission allows, and the risks of granting code the permission.

Table shows permission target name, what the permission allows, and associated risks
Permission Target Name | What the Permission Allows | Risks of Allowing this Permission
--- | --- | ---

`accessFlightRecorder`

Ability to create a Flight Recorder instance, register callbacks to monitor the Flight Recorder life cycle, and control an existing instance of Flight Recorder, which can record and dump runtime information, such as stack traces, class names, and data in user defined events.

A malicious user may be able to extract sensitive information that is stored in events and interrupt Flight Recorder by installing listeners or hooks that never finish.

`registerEvent` | Ability to register events, write data to the Flight Recorder buffers, and execute code in a callback function for periodic events. | A malicious user may be able to write sensitive information to Flight Recorder buffers.

Typically, programmers do not create `FlightRecorderPermission` objects directly. Instead the objects are created by the security policy code that is based on reading the security policy file.

Since:
  9
See Also:
  `BasicPermission`, `Permission`, `Permissions`, `PermissionCollection`, `SecurityManager`, Serialized Form

## Constructor Summary

Constructors
Constructor
Description
`FlightRecorderPermission​(String name)`
Constructs a `FlightRecorderPermission` with the specified name.

## Method Summary

### Methods declared in class java.security.BasicPermission

`equals, getActions, hashCode, implies, newPermissionCollection`

### Methods declared in class java.security.Permission

`checkGuard, getName, toString`

### Methods declared in class java.lang.Object

`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

## Constructor Details

### FlightRecorderPermission

public FlightRecorderPermission​(String name)
Constructs a `FlightRecorderPermission` with the specified name.

Parameters:
  `name` - the permission name, must be either `"accessFlightRecorder"` or `"registerEvent"`, not `null`
Throws:
  `IllegalArgumentException` - if `name` is empty or not valid