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

AddEmptyString
Finds empty string literals which are being added. This is an inefficient way 
to convert any type to a String.
        

		
		
		    
    			
This rule is defined by the following XPath expression:
    			
    			
    
                     
//AdditiveExpression/PrimaryExpression/PrimaryPrefix/Literal[@Image='""']
                
                
  
		    
		    
	    
	    
        
        
        
Example:
            
    
                
             
        String s = "" + 123; // bad 
        String t = Integer.toString(456); // ok