Error log spits these out :
Jan 24, 2009 8:43:17 PM net.sf.jml.protocol.soap.ContactList sendRequest
SEVERE: Sending request
javax.net.ssl.SSLException: Connection has been shutdown: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: signature check failed
[20:43:17] MSN : ERROR java.lang.NullPointerException --> java.lang.NullPointerException
at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:246)
... 31 more
Caused by: java.security.SignatureException: Signature does not match.
java.lang.NullPointerException
at net.sf.jml.protocol.soap.ContactList.processMembers(ContactList.java:722)
And so on.. causing fatal errors. Pidgin and Adium had the same problem, dunno how they fixed it but it's a serious bug at the moment.
Same here, using revision 100 from the SVN.
check the latest revision 101.