Netbeans 6.9.1 on Ubuntu 10.10 Installation – OpenJDK problem

I wanted to install Netbeans IDE 6.9.1 (C/C++ version, but I believe that the problem is generic) on my Ubuntu 10.10 laptop, so after downloading the latest version from, I tried to install it:

$ ls -l
-rw-r--r-- 1 ** ** 36699136 2011-02-06 00:58
$ chmod +x
$ sudo ./

and got the following output:

Configuring the installer...
Searching for JVM on the system...
Extracting installation data...
Running the installer wizard...

The installation wizard (GUI) did not appear at all.

Luckily, I “immediately” thought “hmm, I re-installed Ubuntu quite recently, did I install JRE?”
So, I checked if I had “Java” installed and checked that everything is “good”:.

$java -version
java version "1.6.0_20"
OpenJDK Runtime Environment (IcedTea6 1.9.5) (6b20-1.9.5-0ubuntu1)
OpenJDK Client VM (build 19.0-b09, mixed mode, sharing)

As you can see, I had OpenJDK installed..
For some reason, which I don’t know, I had already installed the Sun JDK, but not removed the OpenJDK, or at least set the java to point to the Sun version.

So, using synaptic, I unistalled OpenJDK (you can (un)install OpenJDK and Sun JDK from the Software Center also):

$java -version
java version "1.6.0_22"
Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
Java HotSpot(TM) Server VM (build 17.1-b03, mixed mode)

And then, everything worked fine..

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