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 * @name Useless parameter
 * @description Parameters that are not used add unnecessary complexity to an interface.
 * @kind problem
 * @problem.severity recommendation
 * @precision high
 * @id java/unused-parameter
 * @tags quality
 *       maintainability
 *       useless-code
 *       external/cwe/cwe-561
import semmle.code.java.deadcode.DeadCode
from RootdefCallable c
where not c.whitelisted()
select c.unusedParameter() as p, "The parameter '" + p + "' is never used."

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