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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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NullAssignment


NullAssignment
Assigning a "null" to a variable (outside of its declaration) is usually
 bad form.  Some times, the assignment is an indication that the programmer doesn't
 completely understand what is going on in the code.  NOTE: This sort of assignment
 may in rare cases be useful to encourage garbage collection.  If that's what you're using
 it for, by all means, disregard this rule :-)
      
		
		
		    
		    
    		    
    		    
    		    

    		    This rule is defined by the following Java class:
    		    net.sourceforge.pmd.rules.design.NullAssignmentRule
    		    
		    
	    
	    
        
        
        Example:
            
                    
 
 public class Foo {
   public void bar() {
     Object x = null; // This is OK.
     x = new Object();
     // Big, complex piece of code here.
     x = null; // This is BAD.
     // Big, complex piece of code here.
   }
 }