Status on OpenJDK Build Infrastructure Project

[Alan Bateman]

On 19/12/2012 19:30, Kelly O'Hair wrote:
> :
>
>
> We have some remaining internal work for the Oracle JDK, and we are extremely close to being done.
> As soon as we can demonstrate full and complete builds, in comparison to the old builds, we will
> proceed to change the default "make" from the top of the forest from the old makefiles to the new build-infra
> makefiles. So unless some disaster strikes, expect the cutover to start several weeks before jdk8 M6
> (See http://openjdk.java.net/projects/jdk8/)
>
> The cutover change will show up in the jdk8/build forest first, then hopefully get integrated into the master
> jdk8/jdk8 forest within a week. It's unknown how quickly these changes will get pulled down into the
> other team forests, it depends on who controls those team areas.
>
Kelly - as you probably know, most people working on the jdk repository 
then just do partial builds and then "incremental" builds after that 
(incremental builds meaning "make -C foo/bar/" or whatever to just run 
the make file for the area that they have changed). It's not completely 
reliable of course but it's how many people work as it gets them 
runnable bits within a couple of seconds, not minutes. I'm happy to see 
partial builds go away but I'm very concerned about the incremental 
build performance. With the new build then it typically re-compiles 
several thousand classes each time and this can take several minutes on 
not-the-latest machines (to be honest, it's a productivity killer). The 
solution coming for the new build is sjavac and that gets us into the 
right ballpark to be productive again. So I'd like to understand the 
plan for sjavac as I didn't see it in your mail. Will that be enabled 
soon after the cut-over, should we just use it anyway?

-Alan.