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How to update from 2.0.11 to 2.2.3?

 
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Hello,

I want to update my application which is using the quite old 2.0.11 version of struts2.
However, that seems to be everything, but not easy...

What do I have to do in order to update the struts2 version?

I tried to simply replace the struts2-core-2.0.11.jar with the new one, but then the start of the tomcat fails with this error:
______
23.08.2011 16:30:57 org.apache.catalina.core.StandardContext filterStart
SEVERE: Exception starting filter struts2
java.lang.NoClassDefFoundError: Lcom/opensymphony/xwork2/util/logging/Logger;
...
Caused by: java.lang.ClassNotFoundException: com.opensymphony.xwork2.util.logging.Logger
______

I don't understand what causes this error.
The only thing I can imagine is that updating the struts2 core lib also requires an update of other libs.
But how shall I now which one I need?

Hope you can help me!

Greetings,
Manuel
 
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refer this thread https://coderanch.com/t/434954/Struts/First-Struts-Application-Unable-load and make sure that you are included xwork-core-2.2.1.jar
 
Manuel Oetzi
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Hello Mohana,

I got the tomcat starting again.
But that was now very much experimenting instead of knowing what I do :-)
Therefore I would be very glad to know where I can see which libs I need in case of updating struts2. Otherwise I will probably open a similar thread in several month ;-)

For others who have the same problem. I did the following:
- Replace struts2-core-2.0.11.jar with struts2-core-2.2.3.jar
- Replace xwork-2.0.4.jar with xwork-core-2.2.3.jar
- Add commons-fileupload-1.2.2.jar

Greetings
Manuel



EDIT:
unfortunately I have another problem, which I assume has something to do with the update of the xwork lib.
After this line here
ActionContext context = ActionContext.getContext();
context is null and therefore I get NullPointerExceptions if I try to access it.

Since the ActionContext is provided by the xwork2 lib which I updated, I am wondering if I have to take anything else into account?


EDIT2:
Funny..., in the API (xworks API you can find the following paragraph:

getContext

public static ActionContext getContext()

Returns the ActionContext specific to the current thread.

Returns:
the ActionContext for the current thread, is never null.



Nevertheless this code here

produces the output:
context: null

Curios!?
 
Don't get me started about those stupid light bulbs.
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