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GUIKit runtime error occurred :java.lang.NullPointerException


I have a module which uses GUIKit to build some user interface in

It works OK from Mathematica frontend but it does not work in batch

"f:/program files/wolfram research/mathematica/7.0/math.exe" -initfile
".../path/gui-module.m" -noprompt

Get out the exception:

GUIRun::err: The following GUIKit runtime error
occurred :java.lang.NullPointerException.

GUIRunModal::nvalid: The GUI definition contains invalid content.

What may be the reason?



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