Summary

Users don't receive email notifications from Bamboo upon failure or success of a build or other types of notification events.

Diagnosis

• Sending a test email from the Bamboo Administration > Communication > Mail Server page works correctly and emails are received immediately.

• Testing email notifications from the command line works fine. For example:
  

  $ echo test | mail -s "Testing" username@domain.com

• The following errors can be seen in the application logs:
  

  atlassian-bamboo.log

  2014-05-20 10:04:52,028 ERROR [AtlassianEvent::0-BAM::EVENTS:pool-3-thread-11] [SystemAuthorityThreadFactory] Uncaught exception in thread AtlassianEvent::0-BAM::EVENTS:pool-3-thread-11
  java.lang.NoClassDefFoundError: Could not initialize class java.awt.Toolkit
  	at java.awt.Color.<clinit>(Color.java:275)
  	at cz.vutbr.web.csskit.TermColorImpl.<init>(TermColorImpl.java:30)
  	at cz.vutbr.web.csskit.TermColorImpl.getColorByHash(TermColorImpl.java:88)
  	......
  	at com.atlassian.bamboo.security.ImpersonationHelper$1.run(ImpersonationHelper.java:52)
  	at java.lang.Thread.run(Thread.java:722)

  atlassian-bamboo.log

  2014-05-19 10:06:21,999 ERROR [AtlassianEvent::0-BAM::EVENTS:pool-3-thread-249] [SystemAuthorityThreadFactory] Uncaught exception in thread AtlassianEvent::0-BAM::EVENTS:pool-3-thread-249
  java.lang.NoClassDefFoundError: Could not initialize class cz.vutbr.web.csskit.antlr.CSSLexer
  	at cz.vutbr.web.csskit.antlr.CSSParserFactory.feedLexer(CSSParserFactory.java:350)
  	at cz.vutbr.web.csskit.antlr.CSSParserFactory.createParser(CSSParserFactory.java:337)
  	at cz.vutbr.web.csskit.antlr.CSSParserFactory.parse(CSSParserFactory.java:227)
  ......
  	at com.atlassian.bamboo.security.ImpersonationHelper$1.run(ImpersonationHelper.java:52)
  	at java.lang.Thread.run(Thread.java:722)

Solution

There are a few different solutions to this problem that have been outlined here:

Solution 1

1. Stop Bamboo server.
2. Follow the guidelines inside the Configuring your system properties document to add the following JVM argument to Bamboo: -Djava.awt.headless=true
3. Start Bamboo server.

Solution 2

Upgrade Java to the latest available version that is compatible with the current version of Bamboo you're running: Supported platforms and edit JAVA_HOME to look into the new JDK directory. A Bamboo restart is required for the changes to take effect.

Solution 3

Check if the libxtst6 library has been installed in the operating system where Bamboo is running using:

ldd /home/mytestone/opt/linux/oraclejdk/jdk1.7.0/jre/amd64/xawt/libmawt.so

If the library is missing, try installing it using the following command:

sudo apt-get install libxtst6