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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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AvoidThrowingNullPointerException


AvoidThrowingNullPointerException
Avoid throwing a NullPointerException - it's confusing because most people will assume that the
virtual machine threw it. Consider using an IllegalArgumentException instead; this will be
clearly seen as a programmer-initiated exception.
      
		
		
		    
    			This rule is defined by the following XPath expression:
    			
    			
                  
//AllocationExpression/ClassOrInterfaceType[@Image='NullPointerException']
   
          
  
		    
		    
	    
	    
        
        
        Example:
            
                    
        
public class Foo {
 void bar() {
  throw new NullPointerException();
 }
}