=====================================
20131128 (Thursday, 28 November 2013)
=====================================

eidreader: 

While trying once more (without success) to get :ref:`eidreader` 
running on Oracle Java, I had the following idea: maybe it is 
because the `.jar` file has been built using OpenJDK?

How to install Oracle Java on Ubuntu:

- https://help.ubuntu.com/community/Java>
- http://www.webupd8.org/2012/01/install-oracle-java-jdk-7-in-ubuntu-via.html

Summary::

    $ sudo add-apt-repository ppa:webupd8team/java
    $ sudo apt-get update
    $ sudo apt-get install oracle-java7-installer

How to see which Java is active:::

    $ update-java-alternatives  -l
    java-1.6.0-openjdk-i386 1061 /usr/lib/jvm/java-1.6.0-openjdk-i386
    java-1.7.0-openjdk-i386 1071 /usr/lib/jvm/java-1.7.0-openjdk-i386
    java-7-oracle 1072 /usr/lib/jvm/java-7-oracle

    $ update-java-alternatives -l
    java-1.6.0-openjdk-i386 1061 /usr/lib/jvm/java-1.6.0-openjdk-i386
    java-1.7.0-openjdk-i386 1071 /usr/lib/jvm/java-1.7.0-openjdk-i386
    java-7-oracle 1072 /usr/lib/jvm/java-7-oracle


    $ echo $JAVA_HOME

    $ java -version
    java version "1.7.0_45"
    Java(TM) SE Runtime Environment (build 1.7.0_45-b18)
    Java HotSpot(TM) Server VM (build 24.45-b08, mixed mode)

    $ which java
    /usr/bin/java


    $ ll /usr/bin/java
    lrwxrwxrwx 1 root root 22 Apr 17  2013 /usr/bin/java -> /etc/alternatives/java*
    $ ll /etc/alternatives/java
    lrwxrwxrwx 1 root root 39 Nov 28 03:40 /etc/alternatives/java -> /usr/lib/jvm/java-7-oracle/jre/bin/java*

    $ ll /etc/alternatives/java
    lrwxrwxrwx 1 root root 39 Nov 28 03:40 /etc/alternatives/java -> /usr/lib/jvm/java-7-oracle/jre/bin/java*


How to switch between Open and Oracle Java::

    $ sudo update-java-alternatives -s java-1.7.0-openjdk-i386
    $ ll /etc/alternatives/java
    lrwxrwxrwx 1 root root 45 Nov 28 03:54 /etc/alternatives/java -> /usr/lib/jvm/java-7-openjdk-i386/jre/bin/java*

    $ sudo update-java-alternatives -s java-7-oracle
    $ ll /etc/alternatives/java
    lrwxrwxrwx 1 root root 39 Nov 28 03:55 /etc/alternatives/java -> /usr/lib/jvm/java-7-oracle/jre/bin/java*


Voilà. Operation successful, result negative. No change. 
This doesn't seem to be the reason.

Note also that there are 2 warnings during compilation::

    javac -classpath applets/eid-applet-service.jar:applets/commons-codec.jar src/eidreader/EIDReader.java
    Note: src/eidreader/EIDReader.java uses unchecked or unsafe operations.
    Note: Recompile with -Xlint:unchecked for details.