openjdk-7-jre-headless fails to install

[yannek]

I'm on utopic unicorn as update from trusty.

Trying to install icedtea-7-plugin I get:

Preparing to unpack .../openjdk-7-jre-headless_7u65-2.5.2-4_amd64.deb ...
Unpacking openjdk-7-jre-headless:amd64 (7u65-2.5.2-4) ...
dpkg: error processing archive /var/cache/apt/archives/openjdk-7-jre-headless_7u65-2.5.2-4_amd64.deb (--unpack):
 trying to overwrite shared '/etc/java-7-openjdk/management/jmxremote.password', which is different from other instances of package openjdk-7-jre-headless:amd64
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)

apt-get -f install can't help and hits the same error.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Induane (oldspiceap)]

dpkg: error processing archive /var/cache/apt/archives/openjdk-7-jre-headless_7u79-2.5.6-0ubuntu1.15.04.1_amd64.deb (--unpack):
 trying to overwrite shared '/etc/java-7-openjdk/psfont.properties.ja', which is different from other instances of package openjdk-7-jre-headless:amd64

however this file doesn't exist in the filesystem:

ls -a /etc/java-7-openjdk/psfont.properties.ja
ls: cannot access /etc/java-7-openjdk/psfont.properties.ja: No such file or directory