LinuxQuestions.org - Cannot open .jnlp OR Disabling Java as it is too old and likely to be out of date.

When I open .jnlp file with firefox (and choose javaws) nothing happens.
When I open .jnlp file with javaws under command line I get msg like following:

Code:

./javaws guistart.jnlp

Disabling Java as it is too old and likely to be out of date. To reenable use jcontrol utility

I have set security to Medium (thats the lowest level) in jcontrol.

I have no clue why it does not work. On my colleague's PC it just simply works.

Versions:

Code:

java: jre1.7.0_55 (32 bit)

Java(TM) Web Start 10.55.2.13-fcs (32 bit)

Operating system: xubuntu-14.04.1-desktop-amd64 AND xubuntu-14.04-desktop-amd64

To be able to run 32 bit java under 64 bit OS I have added following:

Code:

apt-get install libXext6:i386 libxrender1:i386 libXtst6:i386 libXi6:i386

UPDATE:
it works ONLY if I execute in cli:

Code:

./javaws -verbose guistart.jnlp