RFR(XS): 8079510: AIX: fix build after '8042901: Allow com.sun.management to be in a different module...'

[Volker Simonis]

Hi,

can somebody please review this trivial AIX-only change which fixes an
AIX build error:

http://cr.openjdk.java.net/~simonis/webrevs/2015/8079510/
https://bugs.openjdk.java.net/browse/JDK-8079510

Here are the details:

Change '8042901: Allow com.sun.management to be in a different module
to java.lang.management' has refactored the management package and
moved the files:

jdk/src/java.management/unix/native/libmanagement/<OS>OperatingSystem.c

to:

jdk/src/jdk.management/<OS>/native/libmanagement_ext/UnixOperatingSystem.c

Unfortunately we've never had a AIXOperatingSystem.c file on AIX (see
8030957). This was no problem with the old setup but with the new one
the build complains about a missing directory
'jdk/src/jdk.management/aix/native/libmanagement_ext'.

This bug is just for fixing the build, by introducing an emty stub
file. The actual implementation of the corresponding
OperatingSystemMXBean is still up to 8030957.

Thanks,
Volker