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POWhat happens when two Java frameworks need third one but each of the two need different version of third one?
 

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  1. POWhat happens when two Java frameworks need third one but each of the two need different version of third one?
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    <p>In my Java project I'm using two different frameworks (let's say A.jar and B.jar) and both of them require one common framework (let's say Log4j.jar) but in two different versions. How it is treated by Java if framework A needs Log4J v1.1 and B needs Log4j v1.2? Will it cause some kind of conflict/error or will by somehow (how?) resolved?</p> <p>If it will not cause conflict/error (my project can be compiled and run) - can I use any version of Log4j myself in this project? Or am I forced to select lower / higher version number of Log4j?</p> <p><strong>Update:</strong> <em>to be more specific...</em> What if some part of Log4j API changed in v1.2 (let's say one single method doIt() signature changed) and both A and B call doIt. What will happend? Will my project run? Will it crash on first use of doIt? What version of Log4j I must put on classpath - v1.2 or both?</p>
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    1. COThere's no general answer to this, you'll need to be more specific
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      1. POWhat happens when two Java frameworks need third one but each of the two need different version of third one?
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    2. CO@skaffman - ok, I added some additional info and questions...
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