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January 2009

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MASON Multiagent Simulation Toolkit <[log in to unmask]>
Date:
Tue, 13 Jan 2009 09:23:59 -0500
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Sean Luke <[log in to unmask]>
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To: MASON Multiagent Simulation Toolkit <[log in to unmask]>
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Normally when you install Java3D on windows, it's automatically in your 
CLASSPATH.  I wonder if we're seeing a Java 1.6 induced Java3D bug: that 
Sun messed up.

Anyone?

Sean

Gabriel Catalin Balan wrote:
> you need the j3d jars in your classpath. On my windows box they're in
> C:\j2sdk1.4.2\jre\lib\ext, so maybe you're missing the '\lib\ext' part at
> the end.
> 
> If you only want to run things, you can copy the jars in the MASON root
> directory, or edit "start\mason.bat" and change "JAR_DIR"
> 
> Gabriel
> 
> On Mon, 12 Jan 2009 21:22:54 -0500, Mike <[log in to unmask]> wrote:
> 
>> I'm trying to get Java and MASON installed properly.  I can run most of the
>> examples, but the 3D examples all crash with this error:
>>
>>   java.lang.NoClassDefFoundError: javax/media/j3d/Node
>>
>> Java is installed at:  D:\Programs\Java\jdk1.6.0_11
>> j3d is installed at:   D:\Programs\Java\jdk1.6.0_11\j3d-jre
>>
>>   JAVA_HOME = D:\Programs\Java\jdk1.6.0_11
>>   CLASSPATH = .;D:\Programs\Java\jdk1.6.0_11
>>
>> Other directories under JAVA_HOME include
>>   colt-1.2.0
>>   jfreechart-1.0.12
>>
>> Got the error mentioned above.  Then I tried moved j3d, colt, and jfreechart
>> under:
>>   D:\Programs\Java\jdk1.6.0_11\jre
>>
>> Got the same error in MASON on the 3D examples.  What am I doing wrong?
>> Should I have a CLASSPATH that specifies every directory that contains a jar
>> file?
>>
>> Any suggestions would be much appreciated...
>>
>> -Mike

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