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Static Analysis with PMD (O'Reilly)

Tom Copeland looks at PMD on O'Reilly. "PMD is a utility for finding problems in Java code. PMD does this using static analysis; that is, analyzing the source code without actually running the program. PMD comes with a number of ready-to-run rules that you can run on your own source code to find unused variables, unnecessary object creation, empty catch blocks, and so forth."
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