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Sanity4J was created to simplify running multiple static code analysis tools on the Java projects. It provides a single entry point to run all the selected tools and produce a consolidated report, which presents all findings in an easily accessible manner.

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NP_NULL_INSTANCEOF

NP: A known null value is checked to see if it is an instance of a type (NP_NULL_INSTANCEOF)

This instanceof test will always return false, since the value being checked is guaranteed to be null.
Although this is safe, make sure it isn't
an indication of some misunderstanding or some other logic error.