On 12/19/19 6:37 PM, Maurizio Cimadamore wrote:

On 20/12/2019 00:28, Maurizio Cimadamore wrote:

On 20/12/2019 00:22, Ty Young wrote:

On 12/19/19 6:12 PM, Maurizio Cimadamore wrote:

On 20/12/2019 00:02, Ty Young wrote:

On 12/19/19 5:44 PM, Maurizio Cimadamore wrote:

On 19/12/2019 23:30, David Holmes wrote:
I think this is more an issue for the language and compiler folk on compiler-dev. I'm not clear on all the rules around use of preview features but it seems to me that if we are using them internally and that generates warnings then we should be suppressing those warnings (@supressedWarning) at those call sites. Though I don't know whether you can suppress a warning for an import statement??

We had an issue 3-4 weeks ago with preview warnings being issues in import. That issue was fixed and integrated with the big record push:

http://hg.openjdk.java.net/jdk/jdk/rev/8e76f81d057a?revcount=20#l110.18

In fact, I do not see any warning being triggered in my build.

Ty mentioned that he's building from bits obtained from GitHub - so at this point I wonder what's the 'tip' of the jdk/jdk repository you are trying to build?


Github link: https://github.com/openjdk/jdk.

That repo looks fresh - are you sure your local HEAD matches the one you see in GitHub?


git diff @{upstream} shows nothing different.

Ok - but what is your HEAD? At which commit is your local repo?

https://stackoverflow.com/questions/1967967/git-command-to-display-head-commit-id

If your repo is up to date, I have another possible theory - that you are using a bootstrap JDK (the JDK you use -- among other things -- to compile the compiler contained in the JDK sources) which is in the unfortunate state so that (i) it understands @Preview annotations (and display warnings about them) but (ii) does not yet contain the aforementioned fix to suppress preview warnings on imports.


Sounds plausible... but doesn't every JDK release since 9 understand the preview feature system?



If you could attach your full build log, we might be able to see whether the failure occurs during the so called 'bootstrap' phase, in which case that would be definitively a sign of an 'unlucky' JDK being used as bootstrap JDK.


I'm using Panama's JDK that has been built from source. I think it was built just before you did the final merge and closing of the jextract-linkToNative branch.


Attached is the failed build log...


Maurizio


Maurizio




Maurizio



I didn't realize it, but it looks like y'all are already working on 15. Changes made to 14 are pushed to 15 anyway so it doesn't matter, right?



Maurizio

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