[Camino-users] Camino r1010 dtlutgen troubleshooting

[Philip A Cook]

Hi Irvin,

Are you using Sun Java? Can you please check with

java -version?

Thanks,


Phil

On Sep 1, 2011, at 6:40 AM, Irvin Teh wrote:

> Hi all,
> 
> Was wondering if anyone can help on an issue I've been facing while trying to migrate using camino from a Windows XP-Cygwin-camino_v2_880 setup I've been using previously, to a Red Hat Linux x86_64-camino_r1010 setup. Calculating the diffusion tensor and q-ball work fine, but I've been getting errors (See below) when trying to run dtlutgen. I've tried swapping between java versions jdk1.7.0 and jdk1.6.0_27, with no luck.
> 
> Would be very grateful if someone might know a fix for this, thanks!
> 
> Irvin
> Singapore
> 
> 
> [irvin at host brain]$ dtlutgen -schemefile dvec.scheme -snr 16.0 -inversion 1 > picoTable.dat
> Exception in thread "main" java.lang.NullPointerException
>        at numerics.MTRandom.next(MTRandom.java:342)
>        at java.util.Random.nextDouble(Random.java:438)
>        at tractography.DT_LookupTableGenerator.initializeEigenvectors(DT_LookupTableGenerator.java:390)
>        at tractography.DT_LookupTableGenerator.<init>(DT_LookupTableGenerator.java:77)
>        at tractography.OneTensorLUTGenerator.<init>(OneTensorLUTGenerator.java:32)
>        at apps.GenerateDTLUT.execute(GenerateDTLUT.java:270)
>        at apps.EntryPoint.main(EntryPoint.java:266)
> 
> [irvin at host brain]$ java -version
> java version "1.7.0"
> Java(TM) SE Runtime Environment (build 1.7.0-b147)
> Java HotSpot(TM) 64-Bit Server VM (build 21.0-b17, mixed mode)
> 
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