#1 toString() methods fail with NullPointer

[Egon Willighagen]

JOEMol.toString() and other toString() methods fail
with NullPointerException unless explicitely an output
streamer was defined.
System.out could be the default streamer, as can do the
Log4J logger.
At least should it not fail the program but give a
proper warning.

[Joerg Kurt Wegner]

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user_id=169818

I think the NullPointerException was caused by another
problem. For default the JOEMol constructor don't define a
molecule input and output type. Now JOEMol uses the SDF
format as input/output default.
toString() prints an SDF output, if you want another one (e.g.
SMILES), use toString(IOTypeHolder.instance().getIOType
("SMILES"))

Which other toString methods causes
NullPointerExceptions ? I will fix them if you send me a list.

[Joerg Kurt Wegner]

Logged In: YES
user_id=169818

Dafault output type was set to SDF.