W3cubDocs

/OpenJDK 25

Interface LookupSwitchInstruction

All Superinterfaces:
ClassFileElement, CodeElement, Instruction
public sealed interface LookupSwitchInstruction extends Instruction
Models a lookupswitch instruction in the code array of a Code attribute. Delivered as a CodeElement when traversing the elements of a CodeModel.

A lookup switch instruction is composite: 

LookupSwitchInstruction(
    Label defaultTarget,
    List<SwitchCase> cases
)
If elements in cases are not sorted ascending by their caseValue, a sorted version of the cases list will be written instead.
See Java Virtual Machine Specification:
6.5.lookupswitch lookupswitch
Since:
24
See Also:

Method Summary

Modifier and Type Method Description
List<SwitchCase> cases()
Returns the cases of the switch.
Label defaultTarget()
Returns the target of the default case.
static LookupSwitchInstruction of(Label defaultTarget, List<SwitchCase> cases)
Returns a lookup switch instruction.

Methods declared in interface Instruction

opcode, sizeInBytes

Method Details

defaultTarget

Label defaultTarget()
Returns the target of the default case.
Returns:
the target of the default case

cases

List<SwitchCase> cases()
Returns the cases of the switch.
Returns:
the cases of the switch

of

static LookupSwitchInstruction of(Label defaultTarget, List<SwitchCase> cases)
Returns a lookup switch instruction.
Parameters:
defaultTarget - the default target of the switch
cases - the cases of the switch
Returns:
a lookup switch instruction

© 1993, 2025, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/lang/classfile/instruction/LookupSwitchInstruction.html