JDK_IMPORT_PATH

[Douglas Felt]

Thanks for your reply.

--- Kelly O'Hair <Kelly.Ohair at Sun.COM> wrote:

> My apologies, I may have confused what the issue was here.
> When building corba independently, you do need to point it at a
> ALT_JDK_IMPORT_PATH so it can get a newer javac to use...
> 
> 
> Perhaps this can help clarify...
> 
> When we separated out the langtools, corba, jaxp, and jaxws repositories
> the question comes up as to what "javac" should be used to compile
> these sources. The langtools repository has the javac sources.
> The BOOTDIR javac is one revision back (jdk6), so although it can
> compile all this source now, it cannot create "jdk7" version classfiles
> and would not be the same javac we would ship with this jdk7 release.
> (Granted we are still only creating "jdk5" versioned classfiles in both
>   jdk6 and jdk7, so ignore that issue for now, but we can't forget it.
>   This refers to the -target 5 vs. -target 7 javac option.).
> 
> So officially, every class file delivered as part of the jdk7 product
> should have been compiled by "the" javac created by the latest jdk7
> langtools javac.
> 
> So the basic official steps for a master build are:
>    Build langtools with the BOOTDIR jdk & javac (langtools team
> guarantees
>      that the langtools source can be built with a BOOTDIR jdk&javac).
>      This creates a new javac tool that can run with a BOOTDIR jdk and
>      also creates it's javac class files built with this new javac for
>      inclusion into the final jdk7 image.
>    Build everything else with this langtools javac and the BOOTDIR jdk.
> 
> But when building any of these repositories independently, decisions
> have to be made about what javac to use.
> If ALT_LANGTOOLS_DIST is set to refer to a "dist" directory created
> by a langtools build, then that javac and the BOOTDIR jdk is used to do
> the
> javac compiles (or should be, tell me if that is not true).

Apparently not.  I am building 'make all' from the root of the 2d image
(as of last Saturday).  ALT_LANGTOOLS_DIST has been set, according to the
sanity output, and the new javac etc all appear to be there.  The
preceding steps went without error.

Setting ALT_JDK_IMPORT_PATH to be the same as ALT_BOOTDIR gets me past
this for now, I'll see when the build finishes.

Doug

> Otherwise, it will use the ALT_JDK_IMPORT_PATH javac, which comes the
> closest to the right javac to use. ALT_JDK_IMPORT_PATH should refer to
> a fairly recent jdk7 image. Using the BOOTDIR jdk & javac seemed wrong
> to me, but I could look into allowing it.
> 
> Now, ALT_JDK_IMPORT_PATH doesn't "have to" refer to a jdk7 image,
> you can probably get away with pointing it at a jdk6 image.
> But that may not be a good long term answer, but should work now.
> 
> The corba, jaxp, and jaxws teams may decide that their repositories
> can be considered always buildable by the BOOTDIR jdk, in which case
> we could change the rules to allow it to be built by the BOOTDIR jdk
> if langtools javac is not available. But if they ever used a jdk7
> feature in theor sources, they would not be able to use a BOOTDIR javac.
> 
> Hope this helps... and hasn't created more confusion.... :^(
> 
> -kto
> 
> 
> Douglas Felt wrote:
> > Kelly suggested the following, but it doesn't work for me.
> > 
> > ---
> > I think I pushed a fix for this into the jdk7/build/corba repository,
> > but it may be a while before it gets integrated into the master
> > jdk7/jdk7/corba repository.
> > 
> > You could try:
> >     cd your/corba
> >     hg pull http://hg.openjdk.java.net/jdk7/build/corba
> > ---
> > 
> > dougfelt at df-kubuntu:~/openjdk/jdk7/java2d/corba$ hg pull
> > http://hg.openjdk.java.net/jdk7/build/corba
> > pulling from http://hg.openjdk.java.net/jdk7/build/corba
> > searching for changes
> > no changes found
> > $
> > [...]
> >>>> Recursively making xa build @ Fri Mar  7 00:39:59 PST 2008 ...
> > make[3]: Entering directory
> > `/home/dougfelt/openjdk/jdk7/java2d/corba/make/javax/xa'
> > ../../common/shared/Defs-linux.gmk:138: "WARNING: Value of
> JDK_IMPORT_PATH
> > cannot be empty, check or set ALT_JDK_IMPORT_PATH"
> > 
> > So I'm not sure what to do now.
> > 
> > Doug
> > 
> > 
> >      
>
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