title: mvn clean install errors with "Negative seek offset"
body: <p>mvn clean install causes build error
    here is the error what I am getting..</p>
  
  <pre><code>... 24 more
  {[INFO] ------------------------------------------------------------------------
  [INFO] BUILD FAILURE
  [INFO] ------------------------------------------------------------------------
  [INFO] Total time: 1.707s
  [INFO] Finished at: Thu Jun 12 14:09:51 IST 2014
  [INFO] Final Memory: 9M/104M
  [INFO] ------------------------------------------------------------------------
  [ERROR] Failed to execute goal org.apache.maven.plugins:maven-dependency-        plugin:2.1:unpack-dependencies (get-test-data) on project neo4j-spatial: Error unpacking   file: /home/dev237/.m2/repository/org/neo4j/spatial/osm-test-data/20100819/osm-test-data-20100819.jar to: /home/dev237/Projects /spatial/target
  [ERROR] org.codehaus.plexus.archiver.ArchiverException: Error while expanding /home/dev237/.m2/repository/org/neo4j/spatial/osm-test-data/20100819/osm-test-data-20100819.jar: Negative seek offset
  [ERROR] -&gt; [Help 1]
  [ERROR] 
  [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
  [ERROR] Re-run Maven using the -X switch to enable full debug logging.
  [ERROR] 
  [ERROR] For more information about the errors and possible solutions, please read the following articles:
  [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/
  </code></pre>