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();
 }
}