Project Lambda

JSR 335 (Lambda Expressions forthe Java Programming Language) supports programming in amulticore environment by adding closures and related features tothe Java language. The JSR has reached itsFinal Release; these changes to the platform are part of theumbrellaJSR337 and have been integrated intoJava SE 8 (modifying thelanguage,JVM, andlibrary specifications).

Project Lambda produced the OpenJDK implementation of thesefeatures, now integrated into thejdk8 repository. Binarydistributions are available fromOracle; see theJDK 8 Project for moreinformation.

General/tutorial information about the Lambda feature set can befound in the following documents:

• The JDK 8release notes
• The updatedJavaTutorials
• Design documents:State of the Lambda andState of the Lambda, Libraries Edition
• Maurice Naftalin has written a set of answers toFrequently Asked Questions aboutLambda

Now that the Project is complete, feedback and discussion shouldtake place using the normal Java SE and JDK channels:

• Bug reports:bugreport.java.com
• Specification comments:jls-jvms-spec-comments
• javac discussion:compiler-dev
• Future enhancements:JEP process

Theprototypeimplementation andlambda-devmailing list are no longer active.

This Project is sponsored by theCompiler Group.

Older links

• lambda-devmailing list
• Prototype lambdarepository
• Binary snapshots ofthe prototype lambda repository
• EarlyDraft Review #3 (Jan 2013)
• State ofthe Lambda: Libraries Edition (Nov 2012)
• EarlyDraft Review #2 (Jun 2012)
• Translation of Lambda Expressions (Apr 2012)
• State of the Lambda: Libraries Edition (Apr 2012)
• Formal model for extension method linkage (Mar 2012) (PDF)
• State of the Lambda v4 (Dec 2011)
• EarlyDraft Review #1 (Nov 2011)
• Defender methods v4 (Jun 2011) (PDF)
• State of the Lambda v3 (Oct 2010)
• Defender methods v3 (Aug 2010) (PDF)
• Java Language Specification draft, based on the Straw-ManProposal (Jan 2010)
• Closuresfor Java: The Q&A (Dec 2009)
• Straw-ManProposal (Dec 2009)
• Closuresfor Java (Nov 2009)