Class SecurityManager

java.lang.Object

java.lang.SecurityManager

Direct Known Subclasses:: RMISecurityManager

@Deprecated(since="17", forRemoval=true) public class SecurityManager extends Object

Deprecated, for removal: This API element is subject to removal in a future version.

There is no replacement for this class.

SecurityManager was originally specified to allow an application implement a security policy. It allowed an application to determine, before performing a possibly unsafe or security sensitive operation, whether the operation was being attempted in a security context that allowed the operation. This feature no longer exists.

Since:: 1.0

Constructor Summary

Constructor	Description
`SecurityManager()`	Deprecated, for removal: This API element is subject to removal in a future version. Constructs a new `SecurityManager`.

Method Summary

Modifier and Type	Method	Description
`void`	`checkAccept(String host, int port)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkAccess(Thread t)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkAccess(ThreadGroup g)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkConnect(String host, int port)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkConnect(String host, int port, Object context)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkCreateClassLoader()`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkDelete(String file)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkExec(String cmd)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkExit(int status)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkLink(String lib)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkListen(int port)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkMulticast(InetAddress maddr)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkMulticast(InetAddress maddr, byte ttl)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkPackageAccess(String pkg)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkPackageDefinition(String pkg)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkPermission(Permission perm)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkPermission(Permission perm, Object context)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkPrintJobAccess()`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkPropertiesAccess()`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkPropertyAccess(String key)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkRead(FileDescriptor fd)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkRead(String file)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkRead(String file, Object context)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkSecurityAccess(String target)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkSetFactory()`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkWrite(FileDescriptor fd)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`void`	`checkWrite(String file)`	Deprecated, for removal: This API element is subject to removal in a future version. Throws `SecurityException`.
`protected Class<?>[]`	`getClassContext()`	Deprecated, for removal: This API element is subject to removal in a future version. Returns the current execution stack as an array of classes.
`Object`	`getSecurityContext()`	Deprecated, for removal: This API element is subject to removal in a future version. Returns an `AccessControlContext` where the `checkPermission` method always throws an `AccessControlException` and the `getDomainCombiner` method always returns `null`.
`ThreadGroup`	`getThreadGroup()`	Deprecated, for removal: This API element is subject to removal in a future version. Returns the current Thread's `ThreadGroup`.

Methods declared in class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Modifier and Type	Method	Description
`protected Object`	`clone()`	Creates and returns a copy of this object.
`boolean`	`equals(Object obj)`	Indicates whether some other object is "equal to" this one.
`protected void`	`finalize()`	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
`final Class<?>`	`getClass()`	Returns the runtime class of this `Object`.
`int`	`hashCode()`	Returns a hash code value for this object.
`final void`	`notify()`	Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()`	Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()`	Returns a string representation of the object.
`final void`	`wait()`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`	`wait(long timeoutMillis)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis, int nanos)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Constructor Details

SecurityManager

public SecurityManager()

Deprecated, for removal: This API element is subject to removal in a future version.

Constructs a new SecurityManager. Setting a security manager with System.setSecurityManager(SecurityManager) is not supported.

Method Details

getClassContext

protected Class<?>[] getClassContext()

Deprecated, for removal: This API element is subject to removal in a future version.

Returns the current execution stack as an array of classes.

The length of the array is the number of methods on the execution stack. The element at index 0 is the class of the currently executing method, the element at index 1 is the class of that method's caller, and so on.

API Note:: The StackWalker class can be used as a replacement for this method.
Returns:: the execution stack.

getSecurityContext

public Object getSecurityContext()

Deprecated, for removal: This API element is subject to removal in a future version.

Returns an AccessControlContext where the checkPermission method always throws an AccessControlException and the getDomainCombiner method always returns null.

API Note:

This method originally returned a snapshot of the current calling context, which included the current thread's access control context and any limited privilege scope. This method has been changed to always return an innocuous AccessControlContext that fails all permission checks. The Security Manager is no longer supported. There is no replacement for the Security Manager or this method.

Returns:

an AccessControlContext as specified above

See Also:

checkPermission

public void checkPermission(Permission perm)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: perm - ignored
Throws:: SecurityException - always
Since:: 1.2

checkPermission

public void checkPermission(Permission perm, Object context)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: perm - ignored; context - ignored
Throws:: SecurityException - always
Since:: 1.2

checkCreateClassLoader

public void checkCreateClassLoader()

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Throws:: SecurityException - always

checkAccess

public void checkAccess(Thread t)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: t - ignored
Throws:: SecurityException - always

checkAccess

public void checkAccess(ThreadGroup g)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: g - ignored
Throws:: SecurityException - always

checkExit

public void checkExit(int status)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: status - ignored
Throws:: SecurityException - always

checkExec

public void checkExec(String cmd)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: cmd - ignored
Throws:: SecurityException - always

checkLink

public void checkLink(String lib)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: lib - ignored
Throws:: SecurityException - always

checkRead

public void checkRead(FileDescriptor fd)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: fd - the system-dependent file descriptor
Throws:: SecurityException - always

checkRead

public void checkRead(String file)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: file - ignored
Throws:: SecurityException - always

checkRead

public void checkRead(String file, Object context)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: file - ignored; context - ignored
Throws:: SecurityException - always

checkWrite

public void checkWrite(FileDescriptor fd)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: fd - ignored
Throws:: SecurityException - always

checkWrite

public void checkWrite(String file)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: file - ignored
Throws:: SecurityException - always

checkDelete

public void checkDelete(String file)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: file - ignored
Throws:: SecurityException - always

checkConnect

public void checkConnect(String host, int port)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: host - ignored; port - ignored
Throws:: SecurityException - always

checkConnect

public void checkConnect(String host, int port, Object context)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: host - ignored; port - ignored; context - ignored
Throws:: SecurityException - always

checkListen

public void checkListen(int port)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: port - ignored
Throws:: SecurityException - always

checkAccept

public void checkAccept(String host, int port)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: host - ignored; port - ignored
Throws:: SecurityException - always

checkMulticast

public void checkMulticast(InetAddress maddr)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: maddr - ignored
Throws:: SecurityException - always
Since:: 1.1

checkMulticast

public void checkMulticast(InetAddress maddr, byte ttl)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: maddr - ignored; ttl - ignored
Throws:: SecurityException - always
Since:: 1.1

checkPropertiesAccess

public void checkPropertiesAccess()

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Throws:: SecurityException - always

checkPropertyAccess

public void checkPropertyAccess(String key)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: key - ignored
Throws:: SecurityException - always

checkPrintJobAccess

public void checkPrintJobAccess()

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Throws:: SecurityException - always
Since:: 1.1

checkPackageAccess

public void checkPackageAccess(String pkg)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: pkg - ignored
Throws:: SecurityException - always

checkPackageDefinition

public void checkPackageDefinition(String pkg)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: pkg - ignored
Throws:: SecurityException - always

checkSetFactory

public void checkSetFactory()

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Throws:: SecurityException - always

checkSecurityAccess

public void checkSecurityAccess(String target)

Deprecated, for removal: This API element is subject to removal in a future version.

Throws SecurityException.

Parameters:: target - ignored
Throws:: SecurityException - always
Since:: 1.1

getThreadGroup

public ThreadGroup getThreadGroup()

Deprecated, for removal: This API element is subject to removal in a future version.

Returns the current Thread's ThreadGroup.

Returns:: the current Thread's ThreadGroup
Since:: 1.1

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