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Difference between revisions of "JDT Core/Java8"
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* JSR 335 [[https://bugs.eclipse.org/bugs/show_bug.cgi?id=380188 Lambda expressions]] + [[https://bugs.eclipse.org/bugs/show_bug.cgi?id=380501 Default Methods]] | * JSR 335 [[https://bugs.eclipse.org/bugs/show_bug.cgi?id=380188 Lambda expressions]] + [[https://bugs.eclipse.org/bugs/show_bug.cgi?id=380501 Default Methods]] | ||
* JSR 308 [[https://bugs.eclipse.org/bugs/show_bug.cgi?id=380501 Type annotations]] | * JSR 308 [[https://bugs.eclipse.org/bugs/show_bug.cgi?id=380501 Type annotations]] | ||
| − | * | + | * Meta data enhancement specification [[https://bugs.eclipse.org/bugs/show_bug.cgi?id=406966 JEP118: Runtime access to parameter names]] + [[https://bugs.eclipse.org/bugs/show_bug.cgi?id=407864 JEP120: Repeating annotations]] |
<br> | <br> | ||
| + | |||
= What needs to be done = | = What needs to be done = | ||
* TO BE FILLED | * TO BE FILLED | ||
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! width="200" align="center" style="background: none repeat scroll 0% 0%" | Compiler | ! width="200" align="center" style="background: none repeat scroll 0% 0%" | Compiler | ||
| − | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb( | + | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(242, 206, 206);" | in progress |
| − | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb( | + | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(242, 206, 206);" | in progress |
! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(206, 242, 206);" | (1) | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(206, 242, 206);" | (1) | ||
! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(206, 242, 206);" | (1) | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(206, 242, 206);" | (1) | ||
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|- | |- | ||
! width="200" align="center" style="background: none repeat scroll 0% 0%" | DOM / AST | ! width="200" align="center" style="background: none repeat scroll 0% 0%" | DOM / AST | ||
| − | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(242 | + | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(206, 242, 206);" | (1) |
! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(242, 206, 206);" | in progress | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(242, 206, 206);" | in progress | ||
! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(242, 206, 206);" | in progress | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(242, 206, 206);" | in progress | ||
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! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(242, 206, 206);" | April (Srikanth) | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(242, 206, 206);" | April (Srikanth) | ||
! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(242, 206, 206);" | April (Srikanth) | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(242, 206, 206);" | April (Srikanth) | ||
| − | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb( | + | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(206, 242, 206);" | (1) |
! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(242, 206, 206);" | in progress (Markus) | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(242, 206, 206);" | in progress (Markus) | ||
|- | |- | ||
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! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(206, 242, 206);" | (1) | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(206, 242, 206);" | (1) | ||
! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(206, 242, 206);" | (1) | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(206, 242, 206);" | (1) | ||
| − | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb( | + | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(206, 242, 206);" | (1) |
! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(206, 242, 206);" | (1) | ! width="200" align="center" style="background: none repeat scroll 0% 0% rgb(206, 242, 206);" | (1) | ||
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*Checkout the BETA_JAVA8 branch of the following git repositories: | *Checkout the BETA_JAVA8 branch of the following git repositories: | ||
| − | **JDT | + | **JDT Core repository - git://git.eclipse.org/gitroot/jdt/eclipse.jdt.core.git |
| + | **JDT UI repository - git://git.eclipse.org/gitroot/jdt/eclipse.jdt.ui.git | ||
| − | *You need to install a | + | *You need to install a JDK 8 build as an installed JRE in order to run the tests using the JavaSE-1.8 Execution Environment. |
*For more information on how to work with git repositories, look at http://wiki.eclipse.org/Platform-releng/Git_Workflows . | *For more information on how to work with git repositories, look at http://wiki.eclipse.org/Platform-releng/Git_Workflows . | ||
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= Configure a project to use Java 8 features = | = Configure a project to use Java 8 features = | ||
| − | + | If you have JDT UI from the BETA_JAVA8 branch, you can simply set the compliance to 1.8. Otherwise you have to manually set the following properties in <code><project>/.settings/org.eclipse.jdt.core.prefs</code>: | |
org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8 | org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8 | ||
org.eclipse.jdt.core.compiler.compliance=1.8 | org.eclipse.jdt.core.compiler.compliance=1.8 | ||
Revision as of 07:45, 15 May 2013
This page summarizes the work that is being done to add Java™ 8 support into Eclipse. As of now JSR 335 (Lambda expressions) and JSR 308 (Type annotations) are being planned
Contents
Java 8 features that are being worked on
- JSR 335 [Lambda expressions] + [Default Methods]
- JSR 308 [Type annotations]
- Meta data enhancement specification [JEP118: Runtime access to parameter names] + [JEP120: Repeating annotations]
What needs to be done
- TO BE FILLED
Current status
Updates are filed in the top level bug [380190 - Add support for Java SE 8]
JDT UI changes are tracked in JDT UI/Java8
| Lambda Expressions | Method references | Default Methods | Type Annotations / Receiver parameter | |
|---|---|---|---|---|
| Grammar / Parser | (1) | (1) | (1) | (1) |
| Compiler | in progress | in progress | (1) | (1) |
| Reconciler | (1) | (1) | (1) | (1) |
| Error recovery | ||||
| Java Model (Jay) | under investigation | under investigation | under investigation | no changes needed atm |
| DOM / AST | (1) | in progress | in progress | (1) |
| AST Rewrite | in progress | in progress | in progress | (1) |
| Class file generation | April (Srikanth) | April (Srikanth) | (1) | in progress (Markus) |
| Formatter | (1) | (1) | (1) | (1) |
| Indexer (Manoj) | April-May | April-May | April-May | April-May |
| Search (manoj) | April-May | April-May | April-May | April-May |
| Code select (Anirban) | in progress | in progress | in progress | in progress |
| Code completion (Anirban) | in progress | in progress | in progress | in progress |
| Done | |
| |
Not done yet |
(1) more work needed if spec changes
IMPORTANT NOTE
- The following lines must be added in all headers of modified files for Java™ 8 implementation:
* This is an implementation of an early-draft specification developed under the Java * Community Process (JCP) and is made available for testing and evaluation purposes * only. The code is not compatible with any specification of the JCP. *
- Use the following @since tag on all newly added members: "3.9 BETA_JAVA8"
What to do to set up the IDE
- Checkout the BETA_JAVA8 branch of the following git repositories:
- JDT Core repository - git://git.eclipse.org/gitroot/jdt/eclipse.jdt.core.git
- JDT UI repository - git://git.eclipse.org/gitroot/jdt/eclipse.jdt.ui.git
- You need to install a JDK 8 build as an installed JRE in order to run the tests using the JavaSE-1.8 Execution Environment.
- For more information on how to work with git repositories, look at http://wiki.eclipse.org/Platform-releng/Git_Workflows .
- As API Baseline, use 3.8 (or 3.8 RC4 until 3.8 is released).
Configure a project to use Java 8 features
If you have JDT UI from the BETA_JAVA8 branch, you can simply set the compliance to 1.8. Otherwise you have to manually set the following properties in <project>/.settings/org.eclipse.jdt.core.prefs:
org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8 org.eclipse.jdt.core.compiler.compliance=1.8 org.eclipse.jdt.core.compiler.source=1.8
Disclaimer
This is a work in progress. The contents of the BETA_JAVA8 branch will be updated as the changes are made to the JSR Specification.
If you need any help with this, please contact the JDT/Core team through either the forum or Bugzilla.