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/**

* @name Inefficient String constructor

* @description Using the 'String(String)' constructor is less memory efficient than using the

* constructor argument directly.

* @kind problem

* @problem.severity recommendation

* @precision high

* @id java/inefficient-string-constructor

* @tags quality

* maintainability

* readability

*/

import java

from ClassInstanceExpr e

where

e.getConstructor().getDeclaringType() instanceof TypeString and

e.getArgument(0).getType() instanceof TypeString

select e, "Inefficient new String(String) constructor."