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jdk.dynalink

public Class SecureLookupSupplier

extends Object
Class Inheritance
Known Direct Subclasses
jdk.dynalink.CallSiteDescriptor
Imports
java.lang.invoke.MethodHandles, .MethodHandles.Lookup, java.util.Objects
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 TypeField and Description
public static final String
GET_LOOKUP_PERMISSION_NAME

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

private final MethodHandles.Lookup
lookup

Constructor Summary

AccessConstructor and Description
public
SecureLookupSupplier(final MethodHandles.Lookup
the lookup to secure. Can not be null.
lookup)

Creates a new secure lookup supplier for the given lookup.

Method Summary

Modifier and TypeMethod and Description
public final MethodHandles.Lookup

Returns:

the lookup secured by this SecureLookupSupplier.
getLookup()

Returns the lookup secured by this SecureLookupSupplier.

protected final MethodHandles.Lookup

Returns:

same as returned value of getLookup().
getLookupPrivileged()

Returns the lookup secured by this SecureLookupSupplier.

Inherited from java.lang.Object:
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Field Detail

GET_LOOKUP_PERMISSION_NAMEback to summary
public static final String GET_LOOKUP_PERMISSION_NAME

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

lookupback to summary
private final MethodHandles.Lookup lookup

Constructor Detail

SecureLookupSupplierback to summary
public SecureLookupSupplier(final MethodHandles.Lookup lookup)

Creates a new secure lookup supplier for the given lookup.

Parameters
lookup:MethodHandles.Lookup

the lookup to secure. Can not be null.

Exceptions
NullPointerException:
if null is passed.

Method Detail

getLookupback to summary
public final MethodHandles.Lookup getLookup()

Returns the lookup secured by this SecureLookupSupplier.

Returns:MethodHandles.Lookup

the lookup secured by this SecureLookupSupplier.

getLookupPrivilegedback to summary
protected final MethodHandles.Lookup getLookupPrivileged()

Returns the lookup secured by this SecureLookupSupplier.

Returns:MethodHandles.Lookup

same as returned value of getLookup().