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Exception in thread "main"

3 replies on 1 page. Most recent reply: Mar 8, 2007 3:10 AM by Matthias Neumair

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Ntavo Alvinia

Posts: 3
Nickname: ntavo
Registered: Feb, 2007

Exception in thread "main" Posted: Feb 27, 2007 7:46 AM
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Yesterday I performed a format in my computer.. although I have installed everything again when ever I try to run a java 3d programm, even the simpliest I get this message..

Exception in thread "main" java.lang.NullPointerException: Canvas3D: null Graphi
csConfiguration
at javax.media.j3d.Canvas3D.checkForValidGraphicsConfig(Canvas3D.java:95
4)
at javax.media.j3d.Canvas3D.<init>(Canvas3D.java:997)
at Java3Da.<init>(Java3Da.java:14)
at Java3Da.main(Java3Da.java:46)

ofcourse compile finds no errors, and the programm was until yesterday running properly..
Any suggestion?


qwerrr qwerrr

Posts: 1
Nickname: qwerrr
Registered: Feb, 2007

Re: Exception in thread "main" Posted: Feb 27, 2007 9:08 AM
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Do you thint that we all can to read smb.'s thoughts. Full source in studio, please...


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Ntavo Alvinia

Posts: 3
Nickname: ntavo
Registered: Feb, 2007

Re: Exception in thread "main" Posted: Feb 28, 2007 3:46 AM
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It's ok.. i had updated my jdk1-5-09 version to jdk1-6 which apparently created the problems...

Thnx anyway...

Matthias Neumair

Posts: 660
Nickname: neumi
Registered: Sep, 2003

Re: Exception in thread "main" Posted: Mar 8, 2007 3:10 AM
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Java3D was installed in the Java 1.5 folder.
If you upgrade to Java 1.6, there's no installation of Java3D in the 1.6 folder, so it can't find it.

Just re-install Java3D, it will find the new Java-Version and install the files in the right folder.
Do so with all the other extensions you installed (Quicktime4Java ...) or just copy the folder containing the extensions from the 1.5 folder into the 1.6 folder

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