In my Ubuntu server, I added ppa:webupd8team/java repository and tried to install oracle-java7-installer. But it results in the follwing error
root@emaillenin:~# apt-get install oracle-java7-installer
Reading package lists... Done
Building dependency tree
Reading state information... Done
Suggested packages:
binfmt-support visualvm ttf-baekmuk ttf-unfonts ttf-unfonts-core ttf-kochi-gothic ttf-sazanami-gothic ttf-kochi-mincho ttf-sazanami-mincho
ttf-arphic-uming firefox firefox-2 iceweasel mozilla-firefox iceape-browser mozilla-browser epiphany-gecko epiphany-webkit epiphany-browser galeon
midbrowser moblin-web-browser xulrunner xulrunner-1.9 konqueror chromium-browser midori google-chrome
The following NEW packages will be installed:
oracle-java7-installer
0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
Need to get 0 B/17.6 kB of archives.
After this operation, 106 kB of additional disk space will be used.
Preconfiguring packages ...
(Reading database ... 48156 files and directories currently installed.)
Unpacking oracle-java7-installer (from .../oracle-java7-installer_7u25-0~webupd8~1_all.deb) ...
oracle-license-v1-1 license has already been accepted
dpkg: error processing /var/cache/apt/archives/oracle-java7-installer_7u25-0~webupd8~1_all.deb (--unpack):
trying to overwrite '/usr/share/applications/JB-java.desktop', which is also in package oracle-java6-installer 6u37-0~eugenesan~precise1
Errors were encountered while processing:
/var/cache/apt/archives/oracle-java7-installer_7u25-0~webupd8~1_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
root@emaillenin:~# ls /usr/share/applications/JB-java.desktop
ls: cannot access /usr/share/applications/JB-java.desktop: No such file or directory
root@emaillenin:~#
How to resolve this error? Are there any other way to install Java 7?