A bug in class Parser2 of Crimson?

Hello,

I don't know where I can transmit a bug in Crimson. By an email to this 
address?

I have written a simple java class that transforms an XML file and 
writes it in a file. It throws an error I don't understand. I suspect 
that this error is an internal error of Crimson (induced perhaps by an 
error in my class, because other classes work well).

I have used a debugger (with JBuilder) that indicates that the error is 
in the class org.apache.crimson.parser.Parser2 (Id: Parser2.java,v 1.16 
2001/09/29 04:17:47 edwingo Exp) at line 634:
if (!in.peekc ('<') || !maybeElement (null))
The message of the debugger says that the variable peekc is not found in 
the class org.apache.crimson.parser.InputEntity. Seems like an internal 
error...

My class receives a NullPointerException because of the following 
processing in Parser2.

My environment : Windows XP, java 1.4.2_02.

Can you confirm it's a known bug in Crimson? Or perhaps you know how 
this type of error can occur?

Thanks in advance for your answers.

Richard