RFR: JDK-8189608 Remove duplicated jni.h

[David Holmes]

On 18/10/2017 11:14 PM, coleen.phillimore at oracle.com wrote:
> 
> This looks great.  There's also jvm.h too, which is a little more 
> different but shouldn't be.

jvm.h plus the platform specific headers need a bit more work. There's a 
runtime bug open for that:

https://bugs.openjdk.java.net/browse/JDK-8189610

> Did/could you make this change in the jdk10/hs repository since it's 
> primarily hotspot files?   I can't tell from the webrev.

I suggested hs.

David

> Thanks,
> Coleen
> 
> 
> 
> On 10/18/17 4:53 AM, Magnus Ihse Bursie wrote:
>> The file jni.h is stored twice in the repo, both in hotspot and in 
>> java.base. They are both identical, and only the java.base version is 
>> included in the final product.
>>
>> This bug is a part of the umbrella effort JDK-8167078 "Duplicate 
>> header files in hotspot and jdk". As for JDK-8189607, my reasoning is 
>> that the java.base version is the one to keep. (In this case, there 
>> was actually a small difference between the two files -- the hotspot 
>> version first copyright year was 1997, but the java.base version was 
>> 1996. It makes sense to keep the oldest one.)
>>
>> My assumption was that hotspot include files should be sorted 
>> according to the containing directory, and since jni.h no longer 
>> resides in "prims", I've rearranged the include line where needed.
>>
>> The -I path added in CompileJvm.gmk is identical to the one in 
>> JDK-8189607, and will be merged to the same change (depending on which 
>> fix enters first.)
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8189608
>> WebRev: 
>> http://cr.openjdk.java.net/~ihse/JDK-8189608-remove-duplicated-jni/webrev.01 
>>
>>
>> /Magnus
>