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warning MisplacedNullCheck (PMD)

The null check here is misplaced; if the variable is null therell be a NullPointerException (sample)

The null check here is misplaced. if the variable is null you'll get a NullPointerException. Either the check is useless (the variable will never be "null") or it's incorrect.

public class Foo {
 void bar() {
  if (a.equals(baz) || a == null) {}
 }
}
   

Additional info can be found at this http://pmd.sourceforge.net/rules/basic.html#MisplacedNullCheck site.