Interface ModuleMainClassAttribute

All Superinterfaces:: Attribute<ModuleMainClassAttribute>, ClassElement, ClassFileElement

public sealed interface ModuleMainClassAttribute extends Attribute<ModuleMainClassAttribute>, ClassElement

Models the ModuleMainClass attribute (JVMS 4.7.27), which appears on classes that represent module descriptors to indicate the main class of the module.

This attribute only appears on classes, and does not permit multiple instances in a class. It has a data dependency on the constant pool.

The attribute was introduced in the Java SE Platform version 9, major version 53.

See Java Virtual Machine Specification:

4.7.27 The ModuleMainClass Attribute

Since:

See Also:

Method Summary

Modifier and Type	Method	Description
`ClassEntry`	`mainClass()`	Returns main class for this module.
`static ModuleMainClassAttribute`	`of(ClassEntry mainClass)`	Returns a `ModuleMainClass` attribute.
`static ModuleMainClassAttribute`	`of(ClassDesc mainClass)`	Returns a `ModuleMainClass` attribute.

Methods declared in interface Attribute

attributeMapper, attributeName

Method Details

mainClass

ClassEntry mainClass()

Returns main class for this module.

Returns:: main class for this module

of

static ModuleMainClassAttribute of(ClassEntry mainClass)

Returns a ModuleMainClass attribute.

Parameters:: mainClass - the main class
Returns:: a ModuleMainClass attribute

of

static ModuleMainClassAttribute of(ClassDesc mainClass)

Returns a ModuleMainClass attribute.

Parameters:: mainClass - the main class
Returns:: a ModuleMainClass attribute
Throws:: IllegalArgumentException - if mainClass represents a primitive type

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