Interface SourceIDAttribute

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

public sealed interface SourceIDAttribute extends Attribute<SourceIDAttribute>, ClassElement

Models the SourceID attribute, which records the last modified time of the source file from which this class file was compiled.

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

This attribute is not predefined in the Java SE Platform. This is a JDK-specific nonstandard attribute produced by the reference implementation of the system Java compiler, defined by the jdk.compiler module.

Since:

See Also:

Method Summary

Modifier and Type	Method	Description
`static SourceIDAttribute`	`of(Utf8Entry sourceId)`	Returns a `SourceID` attribute.
`static SourceIDAttribute`	`of(String sourceId)`	Returns a `SourceID` attribute.
`Utf8Entry`	`sourceId()`	Returns the source id.

Methods declared in interface Attribute

attributeMapper, attributeName

Method Details

sourceId

Utf8Entry sourceId()

Returns the source id. The source id is the last modified time of the source file (as reported by the file system, in milliseconds) when this class file is compiled.

Returns:: the source id

of

static SourceIDAttribute of(Utf8Entry sourceId)

Returns a SourceID attribute.

Parameters:: sourceId - the source id
Returns:: a SourceID attribute

of

static SourceIDAttribute of(String sourceId)

Returns a SourceID attribute.

Parameters:: sourceId - the source id
Returns:: a SourceID attribute

© 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/attribute/SourceIDAttribute.html