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Top Forums Programming PortInUse Exception in SerialDemo Post 302740105 by Corona688 on Wednesday 5th of December 2012 02:07:30 PM
Old 12-05-2012
Can you run system commands from java? Try running 'groups' from java to see what groups it has available. Compare that to the output when you run 'groups' from shell.
 

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groups(1)							   User Commands							 groups(1)

NAME
groups - print group membership of user SYNOPSIS
groups [user]... DESCRIPTION
The command groups prints on standard output the groups to which you or the optionally specified user belong. Each user belongs to a group specified in /etc/passwd and possibly to other groups as specified in /etc/group. Note that /etc/passwd specifies the numerical ID (gid) of the group. The groups command converts gid to the group name in the output. EXAMPLES
The output takes the following form: example% groups tester01 tester02 tester01 : staff tester02 : staff example% FILES
/etc/passwd /etc/group ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
group(4), passwd(4), attributes(5) SunOS 5.11 14 Sep 1992 groups(1)
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