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I am testing UltraESB 1.7.1 and have been following the quickstart guide in order to do this. Part of the quickstart is to send a message through UltraESB via these instructions. I have followed the instructions but keep getting a Error 503 SERVICE_UNAVAILABLE error returned from Jetty.

I had assumed that my issue was related to me running JDK 7, and not the recommended 6, so I swapped out my JDK, after which I get an exception when starting Jetty. The exception is: 

roberth@ubuntu:~/Downloads/ultraesb-1.7.1/bin$ ./toolbox.sh 
Starting AdroitLogic UltraESB ToolBox ...
Using JAVA_HOME  : /usr/lib/jvm/java-6-oracle
Using ULTRA_HOME: /home/roberth/Downloads/ultraesb-1.7.1
Exception in thread "AWT-EventQueue-0" java.lang.UnsupportedClassVersionError: samples/services/hessian/HessianStockQuoteService : Unsupported major.minor version 51.0

Note: The entirety of the exception has not been posted - if you need more let me know.

Can anyone shed some light on what could be the issues?

System specs:

  • Ubuntu 12.04 LTS.
  • Oracle JDK 6u43/7u17
  • UltraESB 1.7.1 Full

--EDIT-- I am able to reproduce the issue on Windows 7 using JDK 7u15. At this time it appears to be an issue with UltraESB itself as the OS has been eliminated....

Robert H
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2 Answers2

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Please follow the reply from AdroitLogic here [https://getsatisfaction.com/adroitlogic/topics/unable_to_run_quickstart_error_503_service_unavailable_error_occurs]

Asankha
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    Welcome to Server Fault! Generally we like answers on the site to be able to stand on their own - Links are great, but if that link ever breaks the answer should have enough information to still be helpful. Please consider editing your answer to include more detail. See the [FAQ](http://www.serverfault.com/faq) for more info. – slm Apr 09 '13 at 01:35
  • Thanks @Asankha, I will be dual posting in your forum, as well as here to ensure maximum visibility for the issue. – Robert H Apr 09 '13 at 12:23
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Per the linked post by Asankha, the issue may be with multiple versions of the Java JDK installed on my machine.

As such I spun a new instance of Ubuntu 12.04 LTS on VMWare and executed the following:

After install:

  • echo PATH : /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
  • echo JAVA_HOME :
  • which java :

After installing oracle-java6-installer and oracle-java6-set-default from the webupd8team PPA as well as adding a test user (non-root):

  • echo PATH : /usr/local/bin:/usr/bin:/usr/games:/usr/lib/jvm/java-6-oracle/bin:/usr/lib/jvm/java-6-oracle/db/bin:/usr/lib/jvm/java-6-oracle/jre/bin
  • echo JAVA_HOME : /usr/lib/jvm/java-6-oracle
  • which java :/usr/bin/java which is a symlink pointing to /etc/alternatives/java, which points to /usr/lib/jvm/java-6-oracle/jre/bin/java

installing UltraESB 1.7.1 and running the demo results in the following:

  • JAVA_HOME : /usr/lib/jvm/java-6-oracle
  • ULTRA_HOME: /home/edi/ultraesb-1.7.1

and a successful demo session!

Robert H
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