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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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LooseCoupling


LooseCoupling
Avoid using implementation types (i.e., HashSet); use the interface (i.e, Set) instead
      
		
		
		    
		    
    		    
    		    
    		    

    		    This rule is defined by the following Java class:
    		    net.sourceforge.pmd.rules.design.LooseCoupling
    		    
		    
	    
	    
        
        
        Example:
            
                    

import java.util.*;
public class Bar {
 // Use List instead
 private ArrayList list = new ArrayList();
 // Use Set instead
 public HashSet getFoo() {
  return new HashSet();
 }
}