why introducing hidden directories in /etc

[Reindl Harald]

why are permanently with updates introduced new hidden folders
in /etc which let alerting "rkhunter"? openjdk is only a recent
example, but happended often in the last years with several packages

[harry at srv-rhsoft:~]$ ls -lha /etc/.java/
insgesamt 20K
drwxr-xr-x    3 root root 4,0K 2011-12-01 16:20 .
drwxr-xr-x. 144 root root  12K 2011-12-02 20:14 ..
drwxr-xr-x    2 root root 4,0K 2011-11-28 20:21 .systemPrefs

---------------------- Start Rootkit Hunter Scan ----------------------
Warning: Hidden directory found: /etc/.java

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