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Is logging compulsory with spring ?

 
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Hi

I was just doing a basic hands on of spring DI. I have a couple of beans in my xml and I try to instantiate the Spring container so that it loads the beans. Here is the code.


I removed all the lines because the first line itself causes an exception. I am sure on this. Everything is normal if I do not load container (that is, comment the first line )and just treat it as a normal core java program. Here is the exception.

I then add commons-logging jar to my project. There is no exception once I add it. My question is why is it so ? I have clearly checked all my code. Nowhere am i performing any logging. In fact, I do not even have any import statements related to logging. Why does Spring need this jar then. Does it need it internally or does any other jar I am using need logging features? I am pasting all the jars I am using. Most of them are not being used but I have kept them there because I keep trying different features back and forth. Is there some compulsion to use logging with Spring? I am deliberately not pasting xml or any more code for that matter because I am pretty sure the error is not related to anything else. I have thoroughly checked my code and there is no shred of logging. Still if anyone thinks I am wrong, please ask for more code. Thanks for help.

List of jars (I know its stupid enough but could there be a case that any of these jars need logging.)
 
Rajat Sharmanaive
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Hi

Checked on net. Commons-logging is listed as a dependency for Spring. Not sure what that means exactly but it is clear I need it. I am trying to figure out what it means exactly. Any help on that is appreciated. Thanks.
 
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Rajat Sharmanaive wrote:Hi

Checked on net. Commons-logging is listed as a dependency for Spring. Not sure what that means exactly but it is clear I need it. I am trying to figure out what it means exactly. Any help on that is appreciated. Thanks.



Basically, it means that inside Spring's own classes it uses Commons Logging classes, so it needs to be in the classpath at runtime.

Mark
 
Rajat Sharmanaive
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Thanks Mark.
 
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