query: Avoiding NullPointerException while checking for possible-null object (Java)
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 38241
negative_passages.text: How do I check for nulls in an '==' operator overload without infinite recursion?
negative_passages.docid: 152733
negative_passages.text: How to simplify a null-safe compareTo() implementation?
negative_passages.docid: 144658
negative_passages.text: System.NullPointerException: Attempt to de-reference a null object ,sravn
negative_passages.docid: 149666
negative_passages.text: Why can't a null-reference exception name the object that has a null reference?
negative_passages.docid: 19198
negative_passages.text: Does assigning objects to null in Java impact garbage collection?
negative_passages.docid: 31537
negative_passages.text: Checking for null before event dispatching... thread safe?
negative_passages.docid: 81624
negative_passages.text: Is returning null bad design?
negative_passages.docid: 33103
negative_passages.text: How come invoking a (static) method on a null reference doesn't throw NullPointerException?
negative_passages.docid: 5975
negative_passages.text: How to avoid returning a Null if there is no "else" condition in an If construct
negative_passages.docid: 104501
negative_passages.text: How do I enforce null checking?
negative_passages.docid: 10867
negative_passages.text: How to avoid ArrayIndexOutOfBoundsException or IndexOutOfBoundsException?
negative_passages.docid: 78238
negative_passages.text: Nullable type is not a nullable type?
negative_passages.docid: 6255
negative_passages.text: Is it safe to delete a NULL pointer?
negative_passages.docid: 29684
negative_passages.text: How to check if an object is nullable?
negative_passages.docid: 55274
negative_passages.text: Java: Exception itself is null
negative_passages.docid: 137692
negative_passages.text: NullPointerException when working with arrays