April 28, 2017. Starting with JavaMail 1.5.0, the latest JavaMail releases are available from the JavaMail project page on GitHub. JavaMail Documentation. The JavaMail documentation can be. Java 8 banner (182). E-mail this page Printer View. US Sales: +1.800.633.0738; Have Oracle Call You. Java.lang.NoClassDefFoundError: javax/mail/Authenticator. Root cause java.lang.NoClassDefFoundError: javax/mail. I had included the mail-api.jar in. Arabian Dances Brian Balmages Score.

Dear friends, I have created a DC which manages emails to users which uses the following import statements import javax.mail.Message; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage; i downloaded the javax.mail package which was supposed to contain the needed jars and added it to the DC ( preferences->add ext libraries->) But i still find errors in the code. Did i import the right package or should the jars be added in another way?? Thanks and regards SantoshKumar.

Mar 26, 2010 - If you want to use the core JavaMail API to send email, you have to get the JavaMail library – 'mail. Microsoft Word 2002 Activation Key. jar' and 'activation.jar'. Unfortunately, those libraries are not available in the Maven central repository, you have to download it from java.Net maven repository.

While it's possible that this is due to a jar file missing from your classpath, it may not be. It is important to keep two or three different exceptions strait in our head in this case: • java.lang.ClassNotFoundException This exception indicates that the class was not found on the classpath.

This indicates that we were trying to load the class definition, and the class did not exist on the classpath. • java.lang.NoClassDefFoundError This exception indicates that the JVM looked in its internal class definition data structure for the definition of a class and did not find it. This is different than saying that it could not be loaded from the classpath. Usually this indicates that we previously attempted to load a class from the classpath, but it failed for some reason - now we're trying again, but we're not even going to try to load it, because we failed loading it earlier.

The earlier failure could be a ClassNotFoundException or an ExceptionInInitializerError (indicating a failure in the static initialization block) or any number of other problems. The point is, a NoClassDefFoundError is not necessarily a classpath problem. I would look at the source for javax.mail.Authenticator, and see what it is doing in it's static initializer. (Look at static variable initialization and the static block, if there is one.) If you aren't getting a ClassNotFoundException prior to the NoClassDefFoundError, you're almost guaranteed that it's a static initialization problem. I have seen similar errors quite frequently when the hosts file incorrectly defines the localhost address, and the static initialization block relies on InetAddress.getLocalHost(). 127.0.0.1 should point to 'localhost' (and probably also localhost.localdomain). It should NOT point to the actual host name of the machine (although for some reason, many older RedHat Linux installers liked to set it incorrectly).