OpenJDK 27 · java.lang.classfile.constantpool.MethodHandleEntry

Models a CONSTANT_MethodHandle_info structure, or a symbolic reference to a method handle, in the constant pool of a class file. The method handle directly accesses an accessible method, field, or constructor.

The use of a MethodHandleEntry is modeled by a DirectMethodHandleDesc. Conversions are through ConstantPoolBuilder#methodHandleEntry(DirectMethodHandleDesc) and asSymbol().

A method handle entry is composite:

MethodHandleEntry(
    int refKind,
    MemberRefEntry reference
)

where refKind is in the range [1, 9].

Method Summary

Modifier and Type	Method and Description
public DirectMethodHandleDesc	Returns: a symbolic descriptor for this method handle asSymbol() Returns a symbolic descriptor for this method handle.
public default ConstantDesc	constantValue() Implements java.lang.classfile.constantpool.LoadableConstantEntry.constantValue. Returns a symbolic descriptor of this constant.
public int	Returns: the reference kind of this method handle (JVMS 4.4.8) kind() Returns the reference kind of this method handle (JVMS 4.4.8).
public MemberRefEntry	Returns: the constant pool entry describing the field or method, according to the reference kind reference() Returns the constant pool entry describing the field or method, according to the reference kind.

Inherited from java.lang.classfile.constantpool.LoadableConstantEntry:: typeKind

Method Detail

asSymbol back to summary

asSymbol	back to summary
public DirectMethodHandleDesc asSymbol() Returns a symbolic descriptor for this method handle. Returns:DirectMethodHandleDesc a symbolic descriptor for this method handle See Also `ConstantPoolBuilder::methodHandleEntry(DirectMethodHandleDesc)`

public DirectMethodHandleDesc asSymbol()

Returns a symbolic descriptor for this method handle.

Returns:DirectMethodHandleDesc: a symbolic descriptor for this method handle
See Also: ConstantPoolBuilder::methodHandleEntry(DirectMethodHandleDesc)

constantValue back to summary

constantValue	back to summary
public default ConstantDesc constantValue() Implements java.lang.classfile.constantpool.LoadableConstantEntry.constantValue. Doc from java.lang.classfile.constantpool.LoadableConstantEntry.constantValue. Returns a symbolic descriptor of this constant. This is equivalent to `asSymbol()`. Annotations @Override

public default ConstantDesc constantValue()

Implements java.lang.classfile.constantpool.LoadableConstantEntry.constantValue.

Doc from java.lang.classfile.constantpool.LoadableConstantEntry.constantValue.

Returns a symbolic descriptor of this constant.

This is equivalent to asSymbol().

Annotations

@Override

kind back to summary

kind	back to summary
public int kind() Returns the reference kind of this method handle (JVMS 4.4.8). Returns:int the reference kind of this method handle (JVMS 4.4.8) See Also `Reference kinds`

public int kind()

Returns the reference kind of this method handle (JVMS 4.4.8).

Returns:int: the reference kind of this method handle (JVMS 4.4.8)
See Also: Reference kinds

reference	back to summary
public MemberRefEntry reference() Returns the constant pool entry describing the field or method, according to the reference kind. Returns:MemberRefEntry the constant pool entry describing the field or method, according to the reference kind

reference

back to summary

public MemberRefEntry reference()

Returns the constant pool entry describing the field or method, according to the reference kind.

Returns:MemberRefEntry: the constant pool entry describing the field or method, according to the reference kind

public sealed Interface MethodHandleEntry

Method Summary

Method Detail