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From will pugh <willp...@sourcelabs.com>
Subject Re: J2SE 5 Plan / Roadmap
Date Tue, 07 Mar 2006 08:40:21 GMT
You might also want to mention the Memory Model changes that came as 
part of JSR 133.



Nathan Beyer wrote:

>Here's a good link with a summary of some of the new features:
>One of the major pieces that I missed is uplifting everything to support the
>Unicode 4.0 updates; char is now UTF-16 encoded value, etc.
>>-----Original Message-----
>>From: Nathan Beyer [mailto:nbeyer@kc.rr.com]
>>Sent: Friday, March 03, 2006 6:19 PM
>>To: harmony-dev@incubator.apache.org
>>Subject: RE: J2SE 5 Plan / Roadmap
>>This can probably be split up into a couple pieces; here are some of my
>>* JLS3 bytecode support - Can the current VM load JLS3 class files? If
>>what's missing (besides the major.minor version header)? Can some features
>>be enabled/uplifted to allow APIs to move forward? Since generics are a
>>compile-time feature, can code begin using generics by just allowing the
>>JLS3 major.minor version? In any case, this probably breaks down into a
>>couple topics: generics, annotations, enums, return-value-covariance and
>>* Java 5 APIs [NEW] - Most of the brand-new APIs have been identified
>>(java.lang.management, etc) and some are already being checked in. It
>>like there's already a undocumented process here, which is to uplift and
>>build any APIs to the Java 5 specification and leaving out any Java
>>5-specific language features, like generification, enums and annotations.
>>* Java 5 APIs [Generfication] - Once we can allow code with generics to be
>>compiled and loaded, then we could begin a phase of uplifting all of the
>>newly generified APIs (Collections, etc).
>>* Java 5 APIs [Annotations] - I suspect, but could be wrong, that
>>Annotations support will be more difficult to implement in the VM, as
>>is some runtime support. When this is available, another phase can be
>>initiated to uplift all of the APIs with the appropriate Annotations
>>(@deprecated, @override, etc).
>>I'm not too familiar with the JAPI tool, but if Stuart can get the Harmony
>>reports to run against the Java 5 specifications, I this would provide an
>>enormous boost in the arena of new Java 5 APIs. Does JAPI support JLS3
>>features, like generics, annotations and enum checking?
>>Those are some of my thoughts at least.
>>BTW: JLS3 == Java Language Specification, 3rd Edition
>>>-----Original Message-----
>>>From: Geir Magnusson Jr [mailto:geir@pobox.com]
>>>Sent: Friday, March 03, 2006 9:40 AM
>>>To: harmony-dev@incubator.apache.org
>>>Subject: J2SE 5 Plan / Roadmap
>>>We should probably start thinking about how we'll move forward.  There
>>>have been a few casual conversations, but lets start getting some things
>>>down here.

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