usually when i am using either firefox or software ubuntu software center
ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: openjdk-7-jre-headless (not installed)
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
Date: Mon Apr 28 17:08:36 2014
DuplicateSignature: package:openjdk-7-jre-headless:(not installed):cannot copy extracted data for './usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar' to '/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar.dpkg-new': unexpected end of file or stream
ErrorMessage: cannot copy extracted data for './usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar' to '/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar.dpkg-new': unexpected end of file or stream
InstallationDate: Installed on 2014-04-26 (2 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: openjdk-7
Title: package openjdk-7-jre-headless (not installed) failed to install/upgrade: cannot copy extracted data for './usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar' to '/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar.dpkg-new': unexpected end of file or stream
UpgradeStatus: No upgrade log present (probably fresh install)
Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that there was an error on your system when trying to install a particular package. Please execute the following command, as it will clear your package cache, in a terminal:
sudo apt-get clean
Then try performing the update again. This will likely resolve your issue, but the failure could be caused by filesystem or memory corruption. So please also run a fsck on your filesystem(s) and a memory test. Thanks in advance!
[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]