Proposal to revise forest graph and integration practices for JDK 9 (original) (raw)

Magnus Ihse Bursie magnus.ihse.bursie at oracle.com
Wed Dec 4 05:41:35 PST 2013

On 2013-12-04 10:32, Alan Bateman wrote:

On 03/12/2013 18:47, Joe Darcy wrote:

:

The separate repositories for corba, jaxp, and jax-ws were put in place to reflect these differences in code origin and handling; however, I agree it is worthwhile to contemplate a repository consolidation, at least for all the libraries-related repos (jdk, corba, jaxp, jaxws). I agree that jaxp and corba should be looked at. That would also help with a number of awkward circular dependencies and build issues (the code in these two repositories really needs to be in the same big compilation unit as the code in the jdk repository, at least until we/if get to the point where the JDK is compiled as modules). Furthermore, the timing is probably right for JAXP as it has proposed to discontinue its standalone form and this opens the door to taking advantage of new Java Language features and APIs.

From a build perspective, jaxp and corba should, as you say, preferably be compiled as part of the JDK. We are doing unnecessary build steps, as well as missing out on build optimization possibilities, due to this split in different repos.

I'm less sure about the jaxws repository as this is the transformation of code from a number of upstream projects. Having it in its own repository makes it a bit more obvious that we shouldn't be changing anything in that code (as it will be trashed by updates from upstream). Also it does not need to be compiled with the code in the jdk repository and actually doesn't need to be packaged in rt.jar either (but that is a separate topic). If nothing else, then I think that the code in the jaxws repository should be compiled after the jdk repository to avoid some of the boot cycle build issues that periodically arises with big updates from upstream. So if we really don't need it for jdk, nor the rt.jar -- then what use is it? :-) Even if I know how jaxws is built, I don't really have a clue what it's for. :-)

Currently, we have a dependency on jaxws from jdk in the build system. Right now, I can't see why, since as you say, it works just as well to compile after the JDK (if you hack away the artifical dependencies currently in place in the build system). Don't know why we're not doing it that way already.

Anyway. From your argument I think it follows that jaxws should be in a separate subdirectory from the rest of the libraries, but I don't think that it neccessarily follows that it needs to be a separate repository.

/Magnus

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