[Taverna-hackers] Q: Server installation problem, Taverna webapp, ERROR ContextLoader - Context initialization failed, org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'webapp' defined in ServletContext resource

[Hoeftberger, J. <Joh...@DF...>]

Hello everybody,

I try to install the current version of the Taverna server (2.5.4) on a 
64 bit Linux machine (CentOS release 6.3), I can deploy the Taverna .war 
archive, but the web application doesn't start up.

It seems there is an initialization issue with the used spring framework 
in the background, see logs below.

I followed the instructions under 
http://dev.mygrid.org.uk/wiki/display/tav250/Installation+Guide, chose a 
self-signed certificate for SSL with the java tool, 
%JAVA_HOME%\bin\keytool. I adjusted the java cryptography settings and 
can use the Tomcat server with SSL.
I could deploy the Taverna .WAR archive, BUT it doesn't start up. It 
always gives me the following errors:

catalina.out:
SEVERE [localhost-startStop-1] 
org.apache.catalina.core.StandardContext.startInternal Error listenerStart
SEVERE [localhost-startStop-1] 
org.apache.catalina.core.StandardContext.startInternal Context 
[/taverna_server] startup failed due to previous errors


transerv.out:
ERROR ContextLoader ContextLoader - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating 
bean with name 'webapp' defined in ServletContext resource 
[/WEB-INF/beans.xml]: Cannot resolve reference to bean 'worker.policy' 
while setting bean property 'policy'; nested exception is 
org.springframework.beans.factory.BeanCreationException: Error creating 
bean with name 'worker.policy' defined in ServletContext resource 
[/WEB-INF/beans.xml]: Cannot resolve reference to bean 
'localworker.state' while setting bean property 'limits'; nested 
exception is org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name 'localworker.state' defined in 
ServletContext resource [/WEB-INF/beans.xml]: Error setting property 
values; nested exception is 
org.springframework.beans.PropertyBatchUpdateException; nested 
PropertyAccessExceptions (1) are:
PropertyAccessException 1: 
org.springframework.beans.MethodInvocationException: Property 
'defaultExecuteWorkflowScript' threw exception; nested exception is 
java.lang.NullPointerException
	at


I tried different versions of Tomcat (7.0.56, 8.0.14), different 
versions of Java (Java 7, Java 8) and different versions of Taverna 
(2.4.4, 2.5.4) and different combinations of those. The mentioned spring 
framework error has been always the same. So it seems it is not 
dependent on a certain used version of one of the used packages but 
rather a general error in my installation process.
I couldn't find the cause of the problem, couldn't find any mentioned 
information about existing dependencies related to this issue.


All other issues (Java, Tomcat, SSL, cryptorgraphy, ports, file system 
rights, tomcat users should be set appropriately.

Can anybody suggest some ideas how I can overcome this problem? I would 
appreciate it.
I am wondering why I can't find any information about that problem in 
the net.




Many thanks in advance,
Johann

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