linghengqian commented on issue #636:
URL: https://github.com/apache/arrow-java/issues/636#issuecomment-2680153889

   > Is this different than 
[#463](https://github.com/apache/arrow-java/issues/463)/[#464](https://github.com/apache/arrow-java/pull/464)?
   
   - I just noticed that https://github.com/apache/arrow-java/pull/464 is still 
in draft status. And for https://github.com/apache/arrow-java/issues/463 , it 
doesn't mention how to handle `java.time.Instant`. 
   - I would say I'm still a newbie to arrow. If I need to test the related PR, 
according to https://arrow.apache.org/docs/dev/developers/java/building.html , 
do I need to do this?
   ```shell
   git clone [email protected]:aiguofer/arrow-java.git -b improved_tz_support
   cd ./arrow/
   mvn clean install
   mvn generate-resources -Pgenerate-libs-cdata-all-os -N
   mvn generate-resources -Pgenerate-libs-jni-macos-linux -N
   mvn generate-resources -Pgenerate-libs-jni-windows -N
   mvn -Darrow.c.jni.dist.dir=<absolute path to your arrow 
folder>/java-dist/lib -Parrow-c-data clean install
   mvn \
       -Darrow.cpp.build.dir=<absolute path to your arrow 
folder>/java-dist/lib/ \
       -Darrow.c.jni.dist.dir=<absolute path to your arrow 
folder>/java-dist/lib/ \
       -Parrow-jni clean install
   ```
   - I will say I'm a little curious as to why the `<absolute path to your 
arrow folder>` is not fixed... Isn't the arrow git directory just the 
`${user.dir}` property in Maven?


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