When "mvn install" runs on slaves, Hudson copies them to the local
repository of the master.

However, the master may need to modify the location of the local repository, by
setting the value -Dmaven.repo.local=<repository> in the MAVEN_OPTS of the job
configuration.

If this is set then the "mvn install" build works fine, but during the archiving
step the default location (~/.m2/ or /.m2) is used rather than the location
specified by maven.repo.location. This results in an error if this location is
non-writable - particularly a problem if the user under which tomcat is running
has no $HOME.

ERROR: Failed to install artifact to the master
org.apache.maven.artifact.installer.ArtifactInstallationException:
Error installing artifact:
/.m2/repository/someartifact.jar(No such file or directory)
at
org.apache.maven.artifact.installer.DefaultArtifactInstaller.install(DefaultArtifactInstaller.java:84)
at
hudson.maven.reporters.MavenArtifactArchiver$1.call(MavenArtifactArchiver.java:93)
at
hudson.maven.reporters.MavenArtifactArchiver$1.call(MavenArtifactArchiver.java:76)
at
hudson.maven.MavenBuild$ProxyImpl.execute(MavenBuild.java:208)
at sun.reflect.GeneratedMethodAccessor215.invoke(Unknown
Source)