inside the mind of a linux admin

OpenProj complains of Oracle as java vendor instead of Sun with latest version

Those of you who use OpenProj for project management on Linux may receive an erroneous error from the software application complaining that your Java vendor is “Oracle” rather than “Sun”.

Obviously, they are one in the same , but the OpenProj software isn’t smart enough to know this (as of the authoring date of this article, version 1.4).

Here’s an easy fix to get around this and trick the application into working with the Oracle java installation.

The error:
[eriks@eclipse: ~/.openproj]$ openproj
Java auto-detection...
Checking java
Java version: 1.7.0_25 OK
Java implementation: OpenJDK NOK, OpenProj requires Sun, IBM or IcedTea implementation

The fix:
After running it for the first time, it will create a directory called .openproj in the home directory of the user you executed openproj as (you can typically access this with ~/.openproj in any version of Linux).

Once you’ve located the .openproj directory, edit the “run.conf” file and change the line:

JAVA_OPTS="-Xms128m -Xmx768m"


JAVA_OPTS="-Xms128m -Xmx768m -Djava.vendor=Sun"

Related Posts

synergy: How to enable crypto (encryption) and generate SSL certificate

The newer Linux versions of the popular mouse/keyboard sharing application “synergy” now has built in encryption. Here’s how to configure it: Just simply passing the –enable-crypto flag on your synergy server without having a proper SSL certificate will result in the inability to connect to clients and generate an error message similar to this in […]

Read More

Change Number Pad Delete (dot) key from a comma in Ubuntu Linux

I recently purchased a new keyboard and updated to the latest Ubuntu, I’m also an avid user of the number pad for quick input when dealing with spreadsheets or accounting. I found that my num pad’s delete key (“.”) was outputting a comma (“,”) instead. Pretty annoying? I agree, but this can be very easily […]

Read More

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.