RFR: 8255240: Mobile builds need to exclude some modules [v3]

[Tran Khanh Duy]

On Mon, 2 Nov 2020 15:07:39 GMT, Johan Vos <jvos at openjdk.org> wrote:

>> Excuse me, but why don't you port jdk8 instead?
>> Also, I succeed to port jdk8 to Android, but stuck at 
>> 
>> 
>>  static jboolean InitSimpleTypes
>>                  ^
>> Please submit a full bug report,
>> with preprocessed source if appropriate.
>> See <http://source.android.com/source/report-bugs.html> for instructions.
>> make[2]: *** [/home/runner/work/android-openjdk-build-multiarch/android-openjdk-build-multiarch/openjdk/build/linux-aarch64-normal-server-release/jdk/objs/libawt/GraphicsPrimitiveMgr.o] Error 1
>> lib/Awt2dLibraries.gmk:468: recipe for target '/home/runner/work/android-openjdk-build-multiarch/android-openjdk-build-multiarch/openjdk/build/linux-aarch64-normal-server-release/jdk/objs/libawt/GraphicsPrimitiveMgr.o' failed
>> make[2]: *** Waiting for unfinished jobs....
>> BuildJdk.gmk:70: recipe for target 'libs-only' failed
>> make[1]: *** [libs-only] Error 2
>> make: *** [jdk-only] Error 2
>> 
>> At
>> for (pHdr = pStart; pHdr < pEnd; pHdr = PtrAddBytes(pHdr, size)) {
>> If I comment out the check `pHdr < pEnd`, then it built. But I want it to complete headless AWT to get [Caciocavallo project working](https://openjdk.java.net/projects/caciocavallo/) or [wrap `Graphics2D` to Android `Canvas`](https://android.googlesource.com/platform/frameworks/native/+/1c07fd511df873d9c4b6dcd066529959f7809ff6/awt/com/android/internal/awt/AndroidGraphics2D.java).
>
>> Excuse me, but why don't you port jdk8 instead?
> 
> This repository is auto-synced from upstream openjdk/jdk which is 16-ea currently. I don't see a reason why we want Java 8 on Android/ios while we have 15 and beyond on desktop?

Simple reason for porting Java 8 is LTS available, but Java 11 have LTS too.

-------------

PR: https://git.openjdk.java.net/mobile/pull/10