[jira] [Created] (ARROW-10333) [Java] Remove split packages in arrow-memory-core and arrow-vectors

["Benjamin Wilhelm (Jira)" <ji...@apache.org>]

Benjamin Wilhelm created ARROW-10333:
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             Summary: [Java] Remove split packages in arrow-memory-core and arrow-vectors
                 Key: ARROW-10333
                 URL: https://issues.apache.org/jira/browse/ARROW-10333
             Project: Apache Arrow
          Issue Type: Bug
          Components: Java
    Affects Versions: 1.0.1
            Reporter: Benjamin Wilhelm


The  java package (org.apache.arrow.util) is provided in two different artifacts
 * arrow-memory-core: ([Link to GitHub|https://github.com/apache/arrow/tree/master/java/memory/memory-core/src/main/java/org/apache/arrow/util])
 * arrow-vectors: ([Link to GitHub|https://github.com/apache/arrow/tree/master/java/vector/src/main/java/org/apache/arrow/util])
This is causing trouble when using OSGI dependency management. After converting the maven artifacts to OSGI bundles the package is available via two chains (which is not allowed).

Additionally, the Java 9+ module system (JPMS) does not allow for split packages either. See [here|https://www.logicbig.com/tutorials/core-java-tutorial/modules/split-packages.html].

This was mentioned in the [mailing list|https://lists.apache.org/thread.html/r750c627757a7d6739651a73bd51c36fc9ade7c819eb509ed99fd03c0%40%3Cuser.arrow.apache.org%3E].

Possible solutions are:
* Renaming the packages to {{org.apache.arrow.vector.util}} and {{org.apache.arrow.memory.util}}
* Moving the classes from vector to memory-core



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