Class SecureLookupSupplier

java.lang.Object

jdk.dynalink.SecureLookupSupplier

Direct Known Subclasses:: CallSiteDescriptor

public class SecureLookupSupplier extends Object

Encapsulates a MethodHandles.Lookup object.

API Note:: SecureLookupSupplier provided a way in older JDK releases to guard access to a MethodHandles.Lookup object when running with a security manager set.
Since:: 9

Field Summary

Modifier and Type	Field	Description
`static final String`	`GET_LOOKUP_PERMISSION_NAME`	The name of a runtime permission required to successfully invoke the `getLookup()` method.

Constructor Summary

Constructor	Description
`SecureLookupSupplier(MethodHandles.Lookup lookup)`	Creates a new secure lookup supplier for the given lookup.

Method Summary

Modifier and Type	Method	Description
`final MethodHandles.Lookup`	`getLookup()`	Returns the lookup secured by this `SecureLookupSupplier`.
`protected final MethodHandles.Lookup`	`getLookupPrivileged()`	Returns the lookup secured by this `SecureLookupSupplier`.

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.

Field Details

GET_LOOKUP_PERMISSION_NAME

public static final String GET_LOOKUP_PERMISSION_NAME

The name of a runtime permission required to successfully invoke the getLookup() method.

See Also:

Constructor Details

SecureLookupSupplier

public SecureLookupSupplier(MethodHandles.Lookup lookup)

Creates a new secure lookup supplier for the given lookup.

Parameters:: lookup - the lookup to secure. Can not be null.
Throws:: NullPointerException - if null is passed.

Method Details

getLookup

public final MethodHandles.Lookup getLookup()

Returns the lookup secured by this SecureLookupSupplier.

Returns:: the lookup secured by this SecureLookupSupplier.

getLookupPrivileged

protected final MethodHandles.Lookup getLookupPrivileged()

Returns the lookup secured by this SecureLookupSupplier.

Returns:: same as returned value of getLookup().

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