OpenProj on Ubuntu

Starting OpenProj gives error of java vendor:

~$ openproj
Java auto-detection...
Checking java
    Java version: 1.6.0_27 OK
    Java implementation: OpenJDK NOK, OpenProj requires Sun, IBM or IcedTea implementation
Checking /usr/java/jre1.7.0_07/bin/java
    Java version: 1.7.0_07 OK
    Java implementation: Java(TM) OK


Solution:

http://blog.coffeebeans.at/?p=303

FixerDave on 4. December 2012 at 02:54 said:

yup, just editing the conf file with:
JAVA_OPTS=”-Djava.vendor=Sun -Xms128m -Xmx768m”
did the trick.
Thanks to all, including Google