Hi @all, I try to use SMTPAppender for logging errors to respective users via E-Mail in OSGi. My configuration is: OS: Ubuntu Linux 10.04.03 LTS Application Environment: Glassfish 3.1.1 using Apache Felix Logback: tried logback classic Version 0.29 and current Version 1.0 leading to same results Glassfish has following bundles g! lb mail START LEVEL 10 ID|State |Level|Name 227|Resolved | 1|JavaMail API (1.4.4) I write following BundleActivator (I switch the real addresses with stubs), sending an email via SMTPAppender and Java Mail from scratch. package de.sgbs.log; import java.util.logging.Level; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage; import org.osgi.framework.BundleActivator; import org.osgi.framework.BundleContext; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.slf4j.Marker; import org.slf4j.MarkerFactory; import ch.qos.logback.classic.LoggerContext; import ch.qos.logback.classic.joran.JoranConfigurator; import ch.qos.logback.core.joran.spi.JoranException; public class Activator implements BundleActivator { private final static Logger logger = LoggerFactory.getLogger(Activator.class); @Override public void start(BundleContext context) throws Exception { try { LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory(); JoranConfigurator configurator = new JoranConfigurator(); configurator.setContext(lc); lc.reset(); lc.putProperty("application-name", Activator.class.getSimpleName()); configurator.doConfigure("logback.xml"); Marker notifyAdmin = MarkerFactory.getMarker("NOTIFY_ADMIN"); logger.error(notifyAdmin, "This is a serious an error requiring the admin's attention", new Exception("Just testing")); } catch (JoranException ex) { java.util.logging.Logger.getLogger(Activator.class.getName()).log(Level.SEVERE, null, ex); } sendEMail(); } private void sendEMail() throws MessagingException { java.util.Properties props = new java.util.Properties(); props.put("mail.smtp.host", "smtp"); props.put("mail.smtp.port", "25"); Session session = Session.getDefaultInstance(props, null); // Construct the message Message msg = new MimeMessage(session); msg.setFrom(new InternetAddress("me@gmail.com")); msg.setRecipient(Message.RecipientType.TO, new InternetAddress("foo@bar.com")); msg.setSubject("Test"); msg.setText("Hello user, you got an error:"); // Send the message Transport.send(msg); } @Override public void stop(BundleContext context) { logger.info("Goodbye Community!"); } } My logback.xml NOTIFY_ADMIN TRANSACTION_FAILURE smtp foo@bar.com me@gmail.com TESTING: %logger{20} - %m %date %-5level %logger{35} - %message%n Sending from scratch works. SMTPAppender raises an error. This error is given on the osgi console: 10:14:46,850 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [EMAIL] to Logger[ROOT] 10:14:47,048 |-ERROR in ch.qos.logback.classic.net.SMTPAppender[EMAIL] - Error occured while sending e-mail notification. javax.mail.MessagingException: IOException while sending message; nested exception is: javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/mixed; boundary="----=_Part_5_17758761.1325668486851" at javax.mail.MessagingException: IOException while sending message at at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1141) at at javax.mail.Transport.send0(Transport.java:195) at at javax.mail.Transport.send(Transport.java:124) at at ch.qos.logback.core.net.SMTPAppenderBase.sendBuffer(SMTPAppenderBase.java:343) at at ch.qos.logback.core.net.SMTPAppenderBase.append(SMTPAppenderBase.java:179) at at ch.qos.logback.core.AppenderBase.doAppend(AppenderBase.java:85) at at ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:64) at at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:285) at at ch.qos.logback.classic.Logger.callAppenders(Logger.java:272) at at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:473) at at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:427) at at ch.qos.logback.classic.Logger.error(Logger.java:610) at at de.sgbs.log.Activator.start(Activator.java:37) at at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:629) ... Caused by: javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/mixed; boundary="----=_Part_5_17758761.1325668486851" at at javax.activation.ObjectDataContentHandler.writeTo(DataHandler.java:877) at at javax.activation.DataHandler.writeTo(DataHandler.java:302) at at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1476) at at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1772) at at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1099) at ... 47 common frames omitted 10:14:47,049 |-INFO in ch.qos.logback.classic.net.SMTPAppender[EMAIL] - SMTPAppender [EMAIL] is tracking [1] buffers First I thought MIME type multipart/mixed is the cause. I checked my SMTP Server Settings, sending email is ok. I tried googlemail. It's working too. I found another https://bugs.eclipse.org/bugs/show_bug.cgi?id=322398 resource with the same error message. Could it be an classloader problem? Could someone help me to pinpoint the problem? Thanks in advance. -- View this message in context: http://old.nabble.com/SMTPAppender-OSGi-Problem-within-Glassfish-v3.1.1-%28A... Sent from the Logback User mailing list archive at Nabble.com.