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

    Fields
    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

    Constructors
    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().