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JOGL: cannot use glu.gluCylinder

 
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I am trying to draw a cylinder using the glu.gluCylinder, like that:



However, I get a NullPointerException error at the line


How should I handle this error in order to be able to use glu.gluCylinder.
Thank you in advance!
 
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You don't seem to have initialized glu.
 
Adelina Pereteatcu
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Swastik Dey wrote:You don't seem to have initialized glu.


I am deeply sorry for the stupid question, but how should I do this?

If I write:

then I am getting another error: Exception in thread "main" javax.media.opengl.GLException: No OpenGL context current on this thread.
on the line:

 
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