GroupSession
バージョン:GroupSession Ver.3.5.2いつもお世話になっております。今月からGroupSessionのWebメールを使用しております。【メール受信、もしくはフィルタ処理に失敗】というエラーメッセージが数十分から数時間の間に、1日に3~10回ほど出力されます。(error.logの抜粋を次に投稿致します。)これはどのようなエラーなのでしょうか?また解消策はあるのでしょうか?ご存じの方がいらっしゃいましたらお教えください。以上、宜しくお願い致します。
error.log抜粋----------------------------------------2011-11-28 05:01:57,243 ERROR jp.groupsession.v2.wml.pop3.Pop3Receive:184 - メール受信、もしくはフィルタ処理に失敗java.lang.NullPointerException at com.sun.mail.handlers.text_plain.writeTo(text_plain.java:152) at javax.activation.ObjectDataContentHandler.writeTo(DataHandler.java:869) at javax.activation.DataHandler.writeTo(DataHandler.java:302) at javax.mail.internet.MimeUtility.getEncoding(MimeUtility.java:268) at javax.mail.internet.MimeBodyPart.updateHeaders(MimeBodyPart.java:1366) at javax.mail.internet.MimeBodyPart.updateHeaders(MimeBodyPart.java:1021) at javax.mail.internet.MimeMultipart.updateHeaders(MimeMultipart.java:419) at javax.mail.internet.MimeBodyPart.updateHeaders(MimeBodyPart.java:1345) at javax.mail.internet.MimeMessage.updateHeaders(MimeMessage.java:2106) at javax.mail.internet.MimeMessage.saveChanges(MimeMessage.java:2074) at jp.groupsession.v2.wml.smtp.WmlSmtpSender.send(WmlSmtpSender.java:225) at jp.groupsession.v2.wml.smtp.WmlSmtpSender.send(WmlSmtpSender.java:205) at jp.groupsession.v2.wml.smtp.WmlSmtpSender.send(WmlSmtpSender.java:384) at jp.groupsession.v2.wml.pop3.Pop3Receive.__sendMail(Pop3Receive.java:1175) at jp.groupsession.v2.wml.pop3.Pop3Receive.doMailFiltering(Pop3Receive.java:1049) at jp.groupsession.v2.wml.pop3.Pop3Receive.receive(Pop3Receive.java:179) at jp.groupsession.v2.wml.biz.WmlBiz.readNewMail(WmlBiz.java:144) at jp.groupsession.v2.wml.batch.WmlReceiveBatch.__doReceive(WmlReceiveBatch.java:170) at jp.groupsession.v2.wml.batch.WmlReceiveBatch.receiveMail(WmlReceiveBatch.java:149) at jp.groupsession.v2.wml.batch.WmlReceiveBatch.run(WmlReceiveBatch.java:106) at java.lang.Thread.run(Thread.java:662)----------------------------------------
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