> The problem is probably due to Java itself, not to Jmol

Correct. The problem is with the environment provided by the Java
implementation.

Jmol does not have any direct dependencies on X11 ... otherwise it would
not work on Windows nor Mac.

Jmol creates images into an off-screen buffer. For the most part Jmol
renders graphics objects directly that off-screen buffer without any
assistance from the Java graphics library.

The one area that is most heavily dependent upon the host Java graphics
library is font rendering. Jmol makes Java graphics calls in order to
render text into a separate off-screen buffer. It then blits the bits into
the Jmol buffer. Using the Java library to render text gives Jmol full
access to hi quality fonts of various sizes and faces.

I strongly suspect that running 'headless' is a problem because there are
no screen fonts.


Miguel


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