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I want to do some clean up in POM.XML. How can I check which dependencies aren't used at all by my code and if one is used then how tell which one is it?
Of course I don't want to simply delete dependency and then search for errors in IDE, because that could take ages when pom has got about 80+ dependencies.
I'm using SpringSource Tools Suite version of Eclipse.
Greetz
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In your project's POM, press Ctrl and hover the mouse over the dependency. Click the dependency to open the dependency's POM. In the dependency POM, view the active dependency, its transitive dependencies and their versions. You can check the origin from which the dependency was pulled in.
First go to View → Tool Windows → Maven, to make sure that the Maven window is visible. The top-level elements in the tree are your direct dependencies, and the child elements are the transitive dependencies.
A project's dependency tree can be filtered to locate specific dependencies. For example, to find out why Velocity is being used by the Maven Dependency Plugin, we can execute the following in the project's directory: mvn dependency:tree -Dincludes=velocity:velocity.
Have a look at the Maven Dependency Plugin. When running, it should list the dependencies that you declared but do not use, but also which intransitive dependencies you use without explicitly declaring them. Note that it you use reflection, the report may not be accurate.
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