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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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CloneMethodMustBePublic

CloneMethodMustBePublic

The java Manual says “By convention, classes that implement this interface should override Object.clone (which is protected) with a public method.”


                    
//MethodDeclaration[@Public='false']
[
MethodDeclarator/@Image = 'clone'
and MethodDeclarator/FormalParameters/@ParameterCount = 0
]
                    

Example(s):


            
public class Foo implements Cloneable {
    @Override
    protected Object clone() throws CloneNotSupportedException { // Violation, must be public
    }
}

public class Foo implements Cloneable {
    @Override
    protected Foo clone() { // Violation, must be public
    }
}

public class Foo implements Cloneable {
    @Override
    public Object clone() // Ok
}