query: Attempt to de-reference a null object on an existing object
positive_passages.docid: 148267
positive_passages.text: Updating a field on the lookup object using a trigger?
negative_passages.docid: 98908
negative_passages.text: Is it good practice to set variables to null when they are no longer needed?
negative_passages.docid: 58054
negative_passages.text: When is it OK to catch NullPointerException?
negative_passages.docid: 63172
negative_passages.text: Checking a null value in Objective-C that has been returned from a JSON string
negative_passages.docid: 144658
negative_passages.text: System.NullPointerException: Attempt to de-reference a null object ,sravn
negative_passages.docid: 8283
negative_passages.text: Why does null reference print as "null"
negative_passages.docid: 64200
negative_passages.text: Can Java's NullPointerException be changed to report on which variable was null?
negative_passages.docid: 146476
negative_passages.text: Java: Why aren't NullPointerExceptions called NullReferenceExceptions?
negative_passages.docid: 68876
negative_passages.text: Conditional operator assignment with Nullable types?
negative_passages.docid: 134644
negative_passages.text: Compare two objects with .equals() and == operator
negative_passages.docid: 102290
negative_passages.text: Cannot assign null to anonymous property of type array
negative_passages.docid: 48512
negative_passages.text: Placing null at the end of the List
negative_passages.docid: 93401
negative_passages.text: Is it possible to delete a non-new object?
negative_passages.docid: 120566
negative_passages.text: Compare two objects in Java with possible null values
negative_passages.docid: 38241
negative_passages.text: How do I check for nulls in an '==' operator overload without infinite recursion?
negative_passages.docid: 35129
negative_passages.text: Why does String.valueOf(null) throw a NullPointerException?
negative_passages.docid: 10581
negative_passages.text: Avoiding NullPointerException in Java