resources.report.rules.pmd.ProperCloneImplementation.html Maven / Gradle / Ivy

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ProperCloneImplementation


ProperCloneImplementation
Object clone() should be implemented with super.clone().
     
		
		
		    
    			This rule is defined by the following XPath expression:
    			
    			
                     
//MethodDeclarator
[@Image = 'clone']
[count(FormalParameters/*) = 0]
[count(../Block//*[
    (self::AllocationExpression) and
    (./ClassOrInterfaceType/@Image = ancestor::
ClassOrInterfaceDeclaration[1]/@Image)
  ])&gt; 0
]
                
             
  
		    
		    
	    
	    
        
        
        Example:
            
                    
 
class Foo{
    public Object clone(){
        return new Foo(); // This is bad
    }
}