Trying to install icedtea-7-plugin on 14.10 x64 gives an error.

apt-get install icedtea-7-plugin

. . .

Selecting previously unselected package icedtea-netx:amd64.

. . .

Processing triggers for man-db (2.7.0.2-2) ...

E: Sub-process /usr/bin/dpkg returned an error code (1)

It seems there is a problem with a dependency, icedtea-netx.
So I tried to install icedtea-netx just by itself, and the error is shown below.

It seemed to be looking for java-8-openjdk-amd64. I had installed openjdk-7-jre from the repositories, so I uninstalled that and installed both openjdk-8-jre and openjdk-8-jdk. However, this did not correct the issue with icedtea-netx.

(I want to use icedtea and open JDK, not the proprietary Java from Oracle).

Has anyone experienced this, and is there a resolution to the problem?

Here is the output of apt-get install icedtea-netx...

apt-get install icedtea-netx

Reading package lists... Done

Building dependency tree       

Reading state information... Done

The following extra packages will be installed:

  icedtea-netx-common

The following NEW packages will be installed:

  icedtea-netx icedtea-netx-common

0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.

Inst icedtea-netx-common (1.5.1-1ubuntu1 Ubuntu:14.10/utopic [all])

Inst icedtea-netx (1.5.1-1ubuntu1 Ubuntu:14.10/utopic [amd64])

Conf icedtea-netx-common (1.5.1-1ubuntu1 Ubuntu:14.10/utopic [all])

Conf icedtea-netx (1.5.1-1ubuntu1 Ubuntu:14.10/utopic [amd64])

root@PS001:/etc/apt/sources.list.d# apt-get install icedtea-netx

Reading package lists... Done

Building dependency tree       

Reading state information... Done

The following extra packages will be installed:

  icedtea-netx-common

The following NEW packages will be installed:

  icedtea-netx icedtea-netx-common

0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.

Need to get 0 B/1138 kB of archives.

After this operation, 1505 kB of additional disk space will be used.

Do you want to continue? [Y/n] Y

Selecting previously unselected package icedtea-netx-common.

(Reading database ... 314900 files and directories currently installed.)

Preparing to unpack .../icedtea-netx-common_1.5.1-1ubuntu1_all.deb ...

Unpacking icedtea-netx-common (1.5.1-1ubuntu1) ...

Selecting previously unselected package icedtea-netx:amd64.

Preparing to unpack .../icedtea-netx_1.5.1-1ubuntu1_amd64.deb ...

Unpacking icedtea-netx:amd64 (1.5.1-1ubuntu1) ...

Processing triggers for gnome-menus (3.10.1-0ubuntu2) ...

Processing triggers for desktop-file-utils (0.22-1ubuntu2) ...

Processing triggers for bamfdaemon (0.5.1+14.10.20140925-0ubuntu1) ...

Rebuilding /usr/share/applications/bamf-2.index...

Processing triggers for mime-support (3.55ubuntu1) ...

Processing triggers for hicolor-icon-theme (0.13-1) ...

Processing triggers for man-db (2.7.0.2-2) ...

E: Sub-process /usr/bin/dpkg returned an error code (1)

root@PS001:/etc/apt/sources.list.d# apt-get -f install             

Reading package lists... Done

Building dependency tree       

Reading state information... Done

0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

1 not fully installed or removed.

After this operation, 0 B of additional disk space will be used.

Setting up icedtea-netx:amd64 (1.5.1-1ubuntu1) ...

update-alternatives: warning: forcing reinstallation of alternative /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/itweb-settings because link group itweb-settings is broken

update-alternatives: warning: not replacing /usr/share/man/man1/itweb-settings.1.gz with a link

update-alternatives: warning: forcing reinstallation of alternative /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/itweb-settings because link group itweb-settings is broken

update-alternatives: warning: not replacing /usr/share/man/man1/itweb-settings.1.gz with a link

update-alternatives: error: alternative path /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/javaws doesn't exist

dpkg: error processing package icedtea-netx:amd64 (--configure):

 subprocess installed post-installation script returned error exit status 2

Errors were encountered while processing:

 icedtea-netx:amd64

E: Sub-process /usr/bin/dpkg returned an error code (1)