This is not a maven problem.

It looks like a failure to read the documentation for the "jar" command.

Try

        jar -xf file.ear
or
        jar -tf file.ear



On 27/09/2011, at 9:29 PM, Karl Heinz Marbaise wrote:

> Hi,
> 
> i have a project which produces a ear file but the problem i've encountered
> is that the generated ear file can't be extracted via jar -x file.ear nor
> can i list the contents of the archive via jar -t file.ear
> 
> I've tested it with a unzip tool on command line which works without any
> problems (cygwin environment):
> UnZip special compilation options:
>       ASM_CRC
>       COPYRIGHT_CLEAN (PKZIP 0.9x unreducing method not supported)
>       SET_DIR_ATTRIB
>       SYMLINKS (symbolic links supported, if RTL and file system permit)
>       TIMESTAMP
>       UNIXBACKUP
>       USE_EF_UT_TIME
>       USE_UNSHRINK (PKZIP/Zip 1.x unshrinking method supported)
>       USE_DEFLATE64 (PKZIP 4.x Deflate64(tm) supported)
>       UNICODE_SUPPORT [char coding: UTF-8] (handle UTF-8 paths)
>       MBCS-support (multibyte character support, MB_CUR_MAX = 6)
>       LARGE_FILE_SUPPORT (large files over 2 GiB supported)
>       ZIP64_SUPPORT (archives using Zip64 for large files supported)
>       USE_BZIP2 (PKZIP 4.6+, using bzip2 lib version 1.0.5, 10-Dec-2007)
>       VMS_TEXT_CONV
>       WILD_STOP_AT_DIR
>       [decryption, version 2.11 of 05 Jan 2007]
> 
> UnZip and ZipInfo environment options:
>          UNZIP:  [none]
>       UNZIPOPT:  [none]
>        ZIPINFO:  [none]
>     ZIPINFOOPT:  [none]
> 
> 
> Does someone observed such a behaviour?
> 
> Maven 3.0.3 (Windows Plattform)
> 
> java version "1.6.0_25"
> Java(TM) SE Runtime Environment (build 1.6.0_25-b06)
> Java HotSpot(TM) Client VM (build 20.0-b11, mixed mode, sharing)
> 
> maven-ear-plugin version 2.6
> 
> Kind regards
> Karl Heinz Marbaise
> 
> -----
> Kind regards
> Karl Heinz Marbaise
> ----
> http://www.soebes.de
> http://www.skmwiki.de
> http://supose.org/wiki/supose
> --
> View this message in context: 
> http://maven.40175.n5.nabble.com/maven-ear-plugin-ear-file-can-t-be-unpacked-via-jar-x-tp4845008p4845008.html
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> 
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