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sudo apt-get autoremove openjdk-7-jre
sudo apt-get purge openjdk*

# add repo
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

# fix oracle jdk paths for accessing the pcsclite library. Fix it with a symlink:
sudo mkdir /usr/lib64
sudo ln -s /lib/x86_64-linux-gnu/libpcsclite.so.1 /usr/lib64/libpcsclite.so

# remove oracle java
sudo apt-get remove --purge gsfonts-x11 java-common oracle-java8-installer

sudo apt-get install openjdk-7-jre icedtea-plugin # or default-jre

# install card reader daemon and drivers
sudo apt-get install pcscd pcsc-tools libccid