AvoidCatchingNPE

Code should never throw NPE under normal circumstances. A catch block may hide the original error, causing other more subtle errors in its wake.

This rule is defined by the following XPath expression:

            
//CatchStatement/FormalParameter/Type
 /ReferenceType/ClassOrInterfaceType[@Image='NullPointerException']
 
        

Example:

                  
public class Foo {
 void bar() {
  try {
   // do something
   }  catch (NullPointerException npe) {
  }
 }
}