error output (stderr) from 'pkgmk' command is not visible

if your artifactId (in my case it was "portal_entry") contains characters that are not allowed for the PKG abbreviation in pkginfo the build fails with the following output:

—
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Unable to create package.

Embedded error: Command 'pkgmk' returned a non-null exit code: 1
[INFO] ------------------------------------------------------------------------
[INFO] For more information, run Maven with the -e switch
[INFO] ------------------------------------------------------------------------
—

Running maven with -e (or even -X) doesn't give more output on the cause of the failure... I was able though to find the cause by running mvn inside truss... this is what i've discovered:

—
25635: write(2, " p k g m k", 5) = 5
24045/87: read(103, " p k g m k", 8192) = 5
25635: write(2, " : E R R O R : ", 9) = 9
24045/87: fstat64(103, 0xB287F2D0) = 0
24045/87: ioctl(103, FIONREAD, 0xB287F3C8) = 0
25635: write(2, 0x00031804, 30) = 30
25635: i n v a l i d p a c k a g e a b b r e v i a t i o n <
25635: write(2, " p o r t a l _ e n t r y", 12) = 12
24045/87: read(103, 0xB287D318, 8192) = 39
24045/87: : E R R O R : i n v a l i d p a c k a g e a b b r e v i
24045/87: a t i o n <
24045/87: fstat64(103, 0xB287F2D0) = 0
25635: write(2, " >", 1) = 1
24045/87: ioctl(103, FIONREAD, 0xB287F3C8) = 0
25635: write(2, "\n", 1) = 1
24045/87: read(103, 0xB287D318, 8192) = 14
24045/87: p o r t a l _ e n t r y >\n
25635: sigaction(SIGINT, 0xFFBFEC50, 0xFFBFECF0) = 0
24045/87: fstat64(103, 0xB287F2D0) = 0
25635: sigaction(SIGHUP, 0xFFBFEC50, 0xFFBFECF0) = 0
24045/87: ioctl(103, FIONREAD, 0xB287F3C8) = 0
25635: write(2, 0x00031EB4, 33) = 33
25635: # # P a c k a g i n g w a s n o t s u c c e s s f u l .
25635: \n
24045/87: read(103, 0xB287D318, 8192) = 33
24045/87: # # P a c k a g i n g w a s n o t s u c c e s s f u l .
24045/87: \n
24045/87: fstat64(103, 0xB287F2D0) = 0
24045/87: ioctl(103, FIONREAD, 0xB287F3C8) = 0
25635: unlink("/var/tmp/tmpmaAAAuuayeY") = 0
25635: _exit(1)
—

No surprise as Sun stated in his documents that only the following is allowed for the package abbreviation:

• The abbreviation must consist of alphanumeric characters. The first character cannot be a number.
• The abbreviation cannot exceed 32 characters in length.
• The abbreviation cannot be one of the reserved abbreviations: install, new, orall.

My suggestion is to make the error output (stderr = file handle #2) of 'pkgmk' visible to the user to solve this issue.