Hello,

JDK_FILTER was supposed to work, but I see now that it doesn't. That is a bug and needs to be fixed.

Yes, all dependencies are recompiled as make cannot know if there was an api change or not. To work around that, you can do "make java.desktop" or "make java.base" to have the compilation halt when your module is done. As long as you don't need the real images. For that you would need to add something like "&& make jars-only images-only".

You can also try --enable-sjavac again. If you had trouble with it in the past, please give it another go. It is being worked actively on by the langtools team and I see considerable speedup using it. Note that it doesn't currently track dependencies between modules correctly, but there is a patch on review in compiler-dev to fix this.

/Erik

On 2014-08-21 04:07, Wang Weijun wrote:
On Aug 21, 2014, at 5:37, Mandy Chung <mandy.ch...@oracle.com> wrote:

On 8/20/2014 1:26 PM, Phil Race wrote:
I understood we now build individual modules so when
I touched one java source file in the desktop module I expected to see only
that one module rebuilt but I see this :-
java.desktop and all its dependencies are recompiled.   The dependencies
are currently stored in modules.list file
I don't know which file in java.desktop Phil touched, but if there is no API 
change, I cannot see why dependent modules need to be rebuilt.

It's a great plain for me when I only add one System.out.println() call inside 
ClassLoader.java. :-(

--Max

$ grep desktop <top>/make/common/modules.list

Erik's summary of the new targets is a useful reference:
http://mail.openjdk.java.net/pipermail/jdk9-dev/2014-August/001183.html

See also -only, -java, etc suffix to the java.desktop target that may be useful.

JDK_FILTER should still be working.

Mandy


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