Interface ModuleEntry

All Superinterfaces:: PoolEntry

public sealed interface ModuleEntry extends PoolEntry

Models a CONSTANT_Module_info structure, denoting a module, in the constant pool of a class file.

The use of a ModuleEntry is modeled by a ModuleDesc. Conversions are through ConstantPoolBuilder.moduleEntry(ModuleDesc) and asSymbol().

A module entry is composite:

ModuleEntry(Utf8Entry name)

where name is a module name.

See Java Virtual Machine Specification:: 4.4.11 The CONSTANT_Module_info Structure
Since:: 24

Field Summary

Fields declared in interface PoolEntry

TAG_CLASS, TAG_DOUBLE, TAG_DYNAMIC, TAG_FIELDREF, TAG_FLOAT, TAG_INTEGER, TAG_INTERFACE_METHODREF, TAG_INVOKE_DYNAMIC, TAG_LONG, TAG_METHOD_HANDLE, TAG_METHOD_TYPE, TAG_METHODREF, TAG_MODULE, TAG_NAME_AND_TYPE, TAG_PACKAGE, TAG_STRING, TAG_UTF8

Method Summary

Modifier and Type	Method	Description
`ModuleDesc`	`asSymbol()`	Returns a symbolic descriptor for the module name.
`boolean`	`matches(ModuleDesc desc)`	Returns whether this entry describes the given module.
`Utf8Entry`	`name()`	Returns the name of the module.

Methods declared in interface PoolEntry

constantPool, index, tag, width

Method Details

name

Utf8Entry name()

Returns the name of the module.

Returns:: the name of the module

asSymbol

ModuleDesc asSymbol()

Returns a symbolic descriptor for the module name.

API Note:: If only symbol equivalence is desired, matches should be used. It requires reduced parsing and can improve class file reading performance.
Returns:: a symbolic descriptor for the module name

matches

boolean matches(ModuleDesc desc)

Returns whether this entry describes the given module.

Parameters:: desc - the module descriptor
Returns:: whether this entry describes the given module
Since:: 25

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https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/lang/classfile/constantpool/ModuleEntry.html