RFR: 8319516: AIX System::loadLibrary needs support to load a shared library from an archive object [v28]

[Suchismith Roy]

> Allow support for both .a and .so files in AIX.
> If .so file is not found, allow fallback to .a extension.
> JBS Issue: [JDK-8319516](https://bugs.openjdk.org/browse/JDK-8319516)

Suchismith Roy has updated the pull request incrementally with two additional commits since the last revision:

 - Update test/jdk/java/lang/RuntimeTests/loadLibrary/aix/LoadAIXLibraryFromArchiveObject.java
   
   remove final
   
   Co-authored-by: Mandy Chung <mandy.chung at oracle.com>
 - Update test/jdk/java/lang/RuntimeTests/loadLibrary/aix/LoadAIXLibraryFromArchiveObject.java
   
   remove final
   
   Co-authored-by: Mandy Chung <mandy.chung at oracle.com>

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/17945/files
  - new: https://git.openjdk.org/jdk/pull/17945/files/12270d06..2b729673

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17945&range=27
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17945&range=26-27

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/17945.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17945/head:pull/17945

PR: https://git.openjdk.org/jdk/pull/17945