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5.6. Permission Classes

Table 5-1 lists the various Permission subclasses, the target and action names they support, and the methods that require those permissions (in Java 1.2 and later).

Table 5-1. Permission Classes and the Methods They Govern

PermissionTarget, ActionMethods

AWT-Permission

"accessClipboard"

Toolkit.getSystemClipboard()

"accessEventQueue"

Toolkit.getSystemEventQueue()

"listenToAllAWTEvents"

Toolkit.{addAWTEventListener(), removeAWTEventListener()}

"readDisplayPixels"

Graphics2D.setComposite()

"showWindowWithout-WarningBanner"

Window.Window() (if permission is not granted, window has an "insecure" indication)

File-Permission

command, "execute"

Runtime.exec()

filename, "delete"

File.{delete(), deleteOnExit()}

File-Permission

filename, "read"

FileInputStream.FileInputStream(), File.{exists(), canRead(), isFile(), isDirectory(), isHidden(), lastModified(), length(), list(), listFiles()}, RandomAccessFile.RandomAccessFile(), ZipFile.ZipFile()

filename, "write"

FileOutputStream.FileOutputStream(), File.{canWrite(), createNewFile(), createTempFile(), mkdir(), mkdirs(), renameTo(), setLastModified(), setReadOnly()}, RandomAccessFile.RandomAccessFile()

Net-Permission

"requestPassword-Authentication"

Authenticator.requestPassword-Authentication()

"setDefaultAuthenticator"

Authenticator.setDefault()

"specifyStreamHandler"

URL.URL()

Property-Permission

"*", "read, write"

Beans.{setDesignTime(), setGuiAvailable()}, Introspector.setBeanInfo-SearchPath(), PropertyEditorManager.{register-Editor(), setEditorSearchPath()}, System.{getProperties(), setProperties()}

"user.language", "write"

Locale.setDefault()

prop, "read"

System.getProperty()

prop, "write"

System.setProperty()

Reflect-Permission

"suppressAccessChecks"

AccessibleObject.setAccessible()

Runtime-Permission

"accessClassIn- Package.pkgname "

Class.{getClasses(), getDeclaredClasses(), getConstructor(), getConstructors(), getDeclaredFields(), getDeclaredMethods(), getDeclaredConstructors(), getDeclaredField(), getDeclaredMethod(), getDeclaredConstructor(),

Runtime-Permission

getFields(), getMethods(), getField(), getMethod()}

"accessDeclaredMembers"

Class.{getClasses(), getDeclaredClasses(), getDeclaredFields(), getDeclaredMethods(), getDeclaredConstructors(), getDeclaredField(), getDeclaredMethod(), getDeclaredConstructor()}

"createClassLoader"

ClassLoader.Class-Loader(), URLClassLoader.URL-ClassLoader(), SecureClassLoader.Secure-ClassLoader()

"exitVM"

Runtime.{exit(), runFinalizersOnExit()}, System.{exit(), runFinalizersOnExit()}

"getClassLoader"

Class.{forName(), getClassLoader()}, ClassLoader.{getSystemClassLoader(), getParent()}, Thread.getContextClassLoader()

"getProtectionDomain"

Class.getProtectionDomain()

"loadLibrary.libName "

Runtime.{load(), loadLibrary()}, System.{load(), loadLibrary()}

"modifyThread"

Thread.{checkAccess(), interrupt(), suspend(), resume(), setPriority(), setName(), setDaemon()}, ThreadGroup.{interrupt(), stop()}

"modifyThreadGroup"

Thread.{Thread(), enumerate()}, ThreadGroup.{ThreadGroup(), enumerate(), getParent(), interrupt(), setDaemon(), setMaxPriority(), stop(), suspend(), resume(), destroy()}

"queuePrintJob"

Toolkit.getPrintJob()

"readFileDescriptor"

FileInputStream.File-InputStream(FileDescriptor)

"setContextClassLoader"

Thread.setContextClassLoader()

Runtime-Permission

"setFactory"

ServerSocket.setSocketFactory(), Socket.setSocketImplFactory(), URL.setURLStream-HandlerFactory(), URLConnection.{setContent-HandlerFactory(), setFileNameMap()}, HttpURLConnection.set-FollowRedirects(), activation.Activation-Group.{createGroup(), setSystem()}, server.RMISocketFactory.set-SocketFactory()

"setIO"

System.{setIn(), setOut(), setErr()}

"setSecurityManager"

System.setSecurityManager()

"stopThread"

Thread.stop(), ThreadGroup.stop()

"writeFileDescriptor"

FileOutputStream.File-OutputStream(FileDescriptor)

Security-

"addIdentityCertificate"

Identity.addCertificate()

Permission

"clearProvider- Properties.provider "

Provider.clear()

"getPolicy"

Policy.getPolicy()

"getProperty.propname "

Security.getProperty()

"getSignerPrivateKey"

Signer.getPrivateKey()

"insertProvider.provider "

Security.{addProvider(), insertProviderAt()}

"printIdentity"

Identity.toString()

"putProvider- Property.provider "

Provider.put()

"removeIdentityCertificate"

Identity.removeCertificate()

"removeProvider.provider "

Security.removeProvider()

"removeProvider- Property.provider "

Provider.remove()

"setIdentityInfo"

Identity.setInfo(String)

"setIdentityPublicKey"

Identity.setPublicKey()

"setPolicy"

Policy.setPolicy();

"setProperty.propname "

Security.setProperty()

"setSignerKeypair"

Signer.setKeyPair()

"setSystemScope"

IdentityScope.setSystemScope()

Serializable-Permission

"enableSubclass- Implementation"

ObjectInputStream.Object-InputStream(), ObjectOutputStream.Object-OutputStream()

"enableSubstitution"

ObjectInputStream.enable-ResolveObject(), ObjectOutputStream.enable-ReplaceObject()

Socket-Permission

"localhost:port ", "listen"

ServerSocket.ServerSocket(), DatagramSocket.DatagramSocket(), MulticastSocket.MulticastSocket()

host, "accept, connect"

MulticastSocket.{joinGroup(), leaveGroup(), send()}

host, "resolve"

InetAddress.{getHostName(), getAllByName(), getLocalHost()}, DatagramSocket.getLocalAddress()

host:port, "accept"

DatagramSocket.receive(), ServerSocket.{accept(), implAccept()}

host:port, "connect"

DatagramSocket.send(), Socket.Socket()



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