[External] : Re: jlink error when building jextract on macOS for JDK 21

[Jorn Vernee]

I've tried both the latest JDK 21 for Windows/x64 and Mac/AArch64 from 
jdk.java.net [1]. Neither of the jdk.compiler or jdk.internal.opt .jmod 
files contain the conflicting resources, in those builds. I also did a 
test run on Windows with the latest JDK 21 and the jextract jdk21 
branch, and that seems to work fine (except for a known test failure in 
`TestDocComments.java`).

I think this might be an issue with the particular JDK you're using.

Jorn

[1]: https://jdk.java.net/21/

On 25/07/2023 22:33, Manuel Bleichenbacher wrote:
> Hi Jorn
>
> All three conflicting files are present in both the jdk.compiler and 
> jdk.internal.opt jmod files. In the JDK 20, they haven't been present 
> in either jmod file.
>
> What build of the JDK are you using for testing?
>
> Regards
> Manuel
>
>
> Am Di., 25. Juli 2023 um 22:22 Uhr schrieb Jorn Vernee 
> <jorn.vernee at oracle.com>:
>
>     Hey Manuel,
>
>     This looks like a strange error. I do not recognize it. The jawt
>     header files are from java.desktop, and the jaxp.properties file
>     is from java.xml. So, they should not be in jdk.compiler and
>     jdk.internal.opt
>
>     If you list the contents of the jdk.compiler and jdk.internal.opt
>     jmod files (using jmod list), are these resources listed?
>
>     Jorn
>
>     On 25/07/2023 21:44, Manuel Bleichenbacher wrote:
>>     As part of upgrading https://github.com/manuelbl/JavaDoesUSB
>>     <https://urldefense.com/v3/__https://github.com/manuelbl/JavaDoesUSB__;!!ACWV5N9M2RV99hQ!LeVfvzO1SmSaGdm9YadRxM4_TOaqfusTlVSh9BiZsY2dqOD8jUoGZ8X45Mn-XRlR-rS9YuzKcl-Gfe1hE6IVS40Z0PBu$>
>>     to JDK 21, I'm building jextract for JDK 21. It works without
>>     issue on Linux and Windows. But on macOS it fails with this error
>>     message:
>>
>>     *> Task :createJextractImage* FAILED
>>
>>     Error: jdk.tools.jlink.plugin.PluginException: Duplicate
>>     resources: {include/darwin/jawt_md.h=[jdk.compiler,
>>     jdk.internal.opt], conf/jaxp.properties=[jdk.compiler,
>>     jdk.internal.opt], include/jawt.h=[jdk.compiler, jdk.internal.opt]}
>>
>>
>>     From my limited understanding of jlink, I think one of the
>>     explicitly specified modules has a transitive dependency to the
>>     module "jdk.internal.opt", so it's included as well. But the
>>     modules "jdk.compiler" and "jdk.internal.opt" have three common
>>     files, which are now in conflict.
>>
>>     Is this a known issue? Is there a workaround?
>>
>>     My environment is:
>>     - JDK for gradle: openjdk version "17.0.1" 2021-10-19 LTS
>>     - JDK 21: OpenJDK 64-Bit Server VM Zulu21+69-CA (build 21-ea+28,
>>     mixed mode, sharing)
>>     - jextract: head of "jdk21" branch
>>     - Command line: sh ./gradlew
>>     -Pjdk21_home=/Users/me/Documents/zulu21.0.69-ea-jdk21.0.0-ea.28-macosx_aarch64
>>     -Pllvm_home=/Library/Developer/CommandLineTools/usr/ clean verify
>>
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