I am seeing the same issue: Status Code: 500Exception: java.lang.NullPointerException
I am using Jenkins_1.493 to Jenkins_1.493 and JobImportPlugin_v1.0. Both Jenkins are running on Linux with java-1_6_0-ibm-1.6.0 Also, after returning from the error, the 'Job Import Plugin' display shows 'New null' in the top left where it should show 'New Job' If I go back to the default page, then return to the 'Job Import Plugin' page, the status of the import shows: FAILED - Server returned HTTP response code: 403 for URL: http://remote-jenkins.com:8080/job/remoteJob//config.xml