jdeb: FTBFS: Reason: POM 'org.apache.maven.plugins:maven-plugin-plugin' not found in repository: System is offline.

Imported from Debian bug http://bugs.debian.org/724097:

Source: jdeb
Version: 1.0.2~git20130829-1
Severity: serious
Tags: jessie sid
User: <email address hidden>
Usertags: qa-ftbfs-20130922 qa-ftbfs
Justification: FTBFS on amd64

Hi,

During a rebuild of all packages in sid, your package failed to build on
amd64.

Relevant part (hopefully):
> debian/rules build
> test -x debian/rules
> mkdir -p "."
> /usr/share/maven-debian-helper/copy-repo.sh /«PKGBUILDDIR»/debian
> mh_patchpoms -plibjdeb-java --debian-build --keep-pom-version --maven-repo=/«PKGBUILDDIR»/debian/maven-repo --build-no-docs
> touch debian/stamp-poms-patched
> # before-build target may be used to unpatch the pom files, so we need to check if
> # patching the pom files is needed here, normally not
> if [ ! -f pom.xml.save ]; then \
> /usr/bin/make -f debian/rules patch-poms; \
> fi
> cd . && /usr/lib/jvm/default-java/bin/java -noverify -cp /usr/share/maven2/boot/classworlds.jar:/usr/lib/jvm/default-java/lib/tools.jar -Dproperties.file.manual=/«PKGBUILDDIR»/debian/maven.properties -Dclassworlds.conf=/etc/maven2/m2-debian-nodocs.conf org.codehaus.classworlds.Launcher -s/etc/maven2/settings-debian.xml -Dmaven.repo.local=/«PKGBUILDDIR»/debian/maven-repo package
> [INFO]
> NOTE: Maven is executing in offline mode. Any artifacts not already in your local
> repository will be inaccessible.
>
> [INFO] Scanning for projects...
> [INFO] ------------------------------------------------------------------------
> [INFO] Building jdeb
> [INFO] task-segment: [package]
> [INFO] ------------------------------------------------------------------------
> [INFO] ------------------------------------------------------------------------
> [ERROR] BUILD ERROR
> [INFO] ------------------------------------------------------------------------
> [INFO] Error building POM (may not be this project's POM).
>
>
> Project ID: org.apache.maven.plugins:maven-plugin-plugin
>
> Reason: POM 'org.apache.maven.plugins:maven-plugin-plugin' not found in repository: System is offline.
>
> org.apache.maven.plugins:maven-plugin-plugin:pom:2.8
>
>
> for project org.apache.maven.plugins:maven-plugin-plugin
>
>
> [INFO] ------------------------------------------------------------------------
> [INFO] For more information, run Maven with the -e switch
> [INFO] ------------------------------------------------------------------------
> [INFO] Total time: < 1 second
> [INFO] Finished at: Sat Sep 21 09:03:54 UTC 2013
> [INFO] Final Memory: 4M/58M
> [INFO] ------------------------------------------------------------------------
> make: *** [mvn-build] Error 1

The full build log is available from:
   http://aws-logs.debian.net/ftbfs-logs/2013/09/22/jdeb_1.0.2~git20130829-1_unstable.log

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

About the archive rebuild: The rebuild was done on EC2 VM instances from
Amazon Web Services, using a clean, minimal and up-to-date chroot. Every
failed build was retried once to eliminate random failures.