Utility "jar" changes file permissions

[Guillaume ALAUX]

Hello,

When building OpenJDK 7u21 with Icedtea 2.3.9 (for Arch Linux) the
following jar file gets wrong file permissions (not "go" readable):

% ls -Ahl /usr/lib/jvm/java-7-openjdk/lib/sa-jdi.jar
-rw------- 1 root root 2.5M May 15 08:33
/usr/lib/jvm/java-7-openjdk/lib/sa-jdi.jar

I found the "jar" utility has already had such issue as reported here [0] [1].

I can reproduce the wrong behavior explained in Sun's bug report [1]:

% touch newjar.jar
% echo New >> newManifest
% echo OneMore >> oneMoreManifest

% jar -cfM0 newjar.jar newManifest

% ls -l newjar.jar
-rw-r--r-- 1 guillaume users 132 May 20 12:18 newjar.jar

% jar uf newjar.jar oneMoreManifest

% ls -l newjar.jar
-rw------- 1 guillaume users 264 May 20 12:20 newjar.jar

There is a unit test called UpdateJar.java in OpenJDK for that.

Is it worth opening a bug report?

[0] https://bugzilla.redhat.com/show_bug.cgi?id=855977
[1] http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7175845

Thanks!

--
Guillaume