please give me hint to create jar file using alfresco + maven
As far as I know this can be done from Alfresco SDK 3.0.0, which is currently in BETA status.
Martin has a nice article on this at https://docs.google.com/document/d/1p5QR1Q8pVvMT9fh_aID5nraD5NP6ZrU1ztcgE_zHR-4/pub#h.qwftf4e2synq
Basically you have to choose alfresco-platform-jar-archetype or alfresco-share-jar-archetype when configuring a new Maven project.
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