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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 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."