I have installed java JDK following this tutorial:

http://www.duinsoft.nl/packages.php?t=en

The installation was ok but every time I install or uninstall anything, I get this message:

Downloading...

--2012-08-08 22:12:26--  http://download.oracle.com/otn-pub/java/jdk/7u3-b04/jdk-7u3-linux-x64.tar.gz

Resolving download.oracle.com... 201.48.47.25, 201.48.47.27 Connecting

to download.oracle.com|201.48.47.25|:80... connected. HTTP request

sent, awaiting response... 302 Moved Temporarily Location:

https://edelivery.oracle.com/otn-pub/java/jdk/7u3-b04/jdk-7u3-linux-x64.tar.gz

[following]

--2012-08-08 22:12:26--  https://edelivery.oracle.com/otn-pub/java/jdk/7u3-b04/jdk-7u3-linux-x64.tar.gz

Resolving edelivery.oracle.com... 23.62.50.174 Connecting to

edelivery.oracle.com|23.62.50.174|:443... connected. HTTP request

sent, awaiting response... 302 Moved Temporarily Location:

http://download.oracle.com/errors/download-fail-1505220.html

[following]

--2012-08-08 22:12:27--  http://download.oracle.com/errors/download-fail-1505220.html

Connecting to download.oracle.com|201.48.47.25|:80... connected. HTTP

request sent, awaiting response... 200 OK Length: 5307 (5.2K)

[text/html] Saving to: `./jdk-7u3-linux-x64.tar.gz'



      0K .....                                                 100%  416K=0.01s



2012-08-08 22:12:27 (416 KB/s) - `./jdk-7u3-linux-x64.tar.gz' saved

[5307/5307]



Download done. sha256sum mismatch jdk-7u3-linux-x64.tar.gz Oracle JDK

7 is NOT installed. dpkg: error processing oracle-java7-installer

(--configure):  subprocess installed post-installation script returned

error exit status 1 Setting up firefox

(14.0.1+build1-0ubuntu0.11.10.1) ... Please restart all running

instances of firefox, or you will experience problems. Setting up

firefox-globalmenu (14.0.1+build1-0ubuntu0.11.10.1) ... Errors were

encountered while processing:  oracle-java7-installer E: Sub-process

/usr/bin/dpkg returned an error code (1)

I have checked my sources.list and the is no reference to this.

How to remove this code from trying to install it every time?