Musings on JDK development
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Annotation Processing
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December 8, 2013
JSR 269 Maintenance Review for Java SE 8
The annotation processing API, both the processor-specific portion of the API in javax.annotation.processing and the language modeling portions in javax.lang.model.*, are being updated to support the new language features in Java SE 8.
Procedurally, the proposed changes are covered by the second maintenance review of JSR 269:
Maintenance Draft Review 2.
As summarized on on the maintenance review page, there are three categories of changes from the version of the API shipped with Java SE 7:
- Cleaning up the existing specification without changing its semantics (adding missing javadoc tags, etc.)
- API changes to support the language changes being made in Project Lambda /JSR 335.
These includes addingjavax.lang.model.type.IntersectionTypeas well asjavax.lang.model.element.ExecutableElement.isDefault. - API changes to support the language changes being made under JSR 308, Annotations on Java Types. These include
javax.lang.model.AnnotatedConstructand updatingjavax.annotation.processing.Processor.
The small repeating annotations language change, discussed on an OpenJDK alias, is also supported by the proposed changes.
A detailed specification difference is available. Please post any comments here or send them to me through email.
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