I HAVE CREATED A NEW THREAD IN THE 'SOFTWARE' SECTION OF THE UTOPIC FORUM AS THIS PROBLEM IS STILL CURRENT AT THIS TIME
Although Utopic is now on general release, it still has a problem with the installation of 'icedtea-7-plugin:amd64', the java plugin.
Bug reports have been submitted to Launchpad and the status is 'confirmed' importance 'high'. It has been 'assigned' and is awaiting a fix.
As Java is important on my PC, my work around is to continue to use Trusty until that fix is created.
*addition*
there is also a related bug report at Debian, 'Bugs in package icedtea-netx', perhaps we are waiting for the fix to come from there?
*further addition*
from what I can see from internet searches the problem appears to be that Ubuntu has adopted a package or packages from Debian marked 'not ready for release' due to serious bugs
these packages are an update to the 'Icedtea-web' set and have been modified to allow for openjava-8 which is around the corner
however part of these packages are broken preventing installation
the equivalent in Trusty Tahr has not incorporated these changes so it is working fine
as a temporary measure it would seem that Utopic would be better falling back on the same openjava packages as Tahr until a fix for the proposed packages is produced, possibly at Debian
at least it would then be possible to install the java plugin from the repositories
Although Utopic is now on general release, it still has a problem with the installation of 'icedtea-7-plugin:amd64', the java plugin.
Bug reports have been submitted to Launchpad and the status is 'confirmed' importance 'high'. It has been 'assigned' and is awaiting a fix.
As Java is important on my PC, my work around is to continue to use Trusty until that fix is created.
*addition*
there is also a related bug report at Debian, 'Bugs in package icedtea-netx', perhaps we are waiting for the fix to come from there?
*further addition*
from what I can see from internet searches the problem appears to be that Ubuntu has adopted a package or packages from Debian marked 'not ready for release' due to serious bugs
these packages are an update to the 'Icedtea-web' set and have been modified to allow for openjava-8 which is around the corner
however part of these packages are broken preventing installation
the equivalent in Trusty Tahr has not incorporated these changes so it is working fine
as a temporary measure it would seem that Utopic would be better falling back on the same openjava packages as Tahr until a fix for the proposed packages is produced, possibly at Debian
at least it would then be possible to install the java plugin from the repositories