The Eclipse JDT/Core team is pleased
to announce the availability of early access builds
with support enabled for the following
Java 8 features.
What work is complete and ready to be
- JSR308 - Type Annotations.
- JEP120 - Repeating Annotations.
- JEP118 - Method Parameter
- JSR269 - Pluggable Annotation
Processor API & javax.lang.model API enhancements for Java 8.
- Support for - Code completion,
code selection/navigation, search engine for all of the above
- Code formatter and code
reconciler (instant feedback with error/warnings as you type) for all of
- IDE enablement support
(AST API's, programmatic AST rewriting API support etc) for all of Java
- JSR308 type annotations
based static null analysis (substantially complete, open issues exist)
- Support for non-abstract
interface methods (default & static methods from JSR335)
We also announce partial support for:
- JSR335 - Except as relates
to overload resolution and type inference. (Significant gaps exist in these
What work remains:
The major pieces that are still under
development and so are NOT a part of early access release are:
- JSR335 - Overload resolution
support and type inference support.
- Full fledged IDE enablement
for Java 8.
- Full fledged debugger
support for Java 8.
On JSR335, until the last week of Sep
2013, we were blocked by several issues due to incomplete
specification of Part G (Type Inference).
Our representatives in the JSR 335 expert group are working
with the specification lead and other
experts to get these issues sorted out and clarified. We are
proceeding on the basis of clarifications
we have received for our questions regarding the missing parts
and the much more complete draft made
available to us circa last week of Sep 2013.
Work on overload resolution and type
inference and their constituent sub-projects are in various stages
of evolution in the contributor's private
branches. These are not yet ready for public consumption and are
so not included in the present early
access preview builds. As a result, even some basic scenarios in
JSR335 that require overload resolution
to be wired in or type inference to be wired in may not
work well at the moment. We are working
to remedy this situation soon.
Likewise, the projects to fully support
Java 8 in the IDE and the debugger are progressing swiftly. We expect to
refresh the early access binaries once
these pieces are cooked and ready to test allowing developers sufficient
time to try out the early access versions
and report back issues and have them addressed well in time for the GA
release in March 2014.
Thanks for your patience.
Terms & Conditions:
Please be advised that these downloads
are offered under these terms in addition to the usual
Eclipse SDK download/license terms:
"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."
We advise that this early access version
be used only in a test/evaluation mode and not
in a development environment.
How to get hold of the early access
We recommend that you start with a clean
The Eclipse team would like to place
on record our sincere appreciation and thanks to the following individuals
who went above and beyond the call of
duty to roll up their sleeves and contribute handsomely to meeting this
significant milestone. This has been
a truly global, truly open source effort:
- Stephan Herrmann
contract verification work.
- On going
type inference work
- Type annotation
annotations based null analysis.
involvement /consultation in various other tasks.
- Olivier Thomann:
- Original support
for type annotations code generation from the Java SE7 days.
- Ongoing consultations,
monitoring mailing lists, patches etc.
- Jesper Moller:
pieces in JSR 335 semantic analysis.
work for JSR335 code generation.
- Java 8
code formatter support,
- JEP 118
- Parameter reflection support
- JEP 120
- repeating annotations support.
- Andrew Clement
up and reviving Olivier's original work on 308 code generation and bringing
it up to date
respect to the numerous specification changes in 3+ years.
- Type annotations
retrieval from class files.
an update site for early access users.
- Walter Harley:
for the JSR269/APT enhancement work.
- Steve Francisco
- For ongoing
support on the administrative side of things.