query: Null Pointer Exception when getting a value from a Document
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 75212
negative_passages.text: How to get the first non-null value in Java?
negative_passages.docid: 2116
negative_passages.text: IllegalArgumentException or NullPointerException for a null parameter?
negative_passages.docid: 64332
negative_passages.text: avoiding null reference exceptions
negative_passages.docid: 37988
negative_passages.text: System.NullPointerException: Attempt to de-reference a null object:
negative_passages.docid: 36270
negative_passages.text: Nullable type issue with ?: Conditional Operator
negative_passages.docid: 87189
negative_passages.text: System.NullPointerException
negative_passages.docid: 36811
negative_passages.text: How do I access a field value for an entity (e.g. node) object?
negative_passages.docid: 13711
negative_passages.text: java.lang.NullPointerException at org.glassfish.hk2.classmodel.reflect.impl.TypesImpl.getType
negative_passages.docid: 64200
negative_passages.text: Can Java's NullPointerException be changed to report on which variable was null?
negative_passages.docid: 35590
negative_passages.text: How to fix NullPointerException in Java?
negative_passages.docid: 45869
negative_passages.text: Why null cast a parameter?
negative_passages.docid: 95208
negative_passages.text: The method getText() is undefined for the type String error
negative_passages.docid: 69771
negative_passages.text: NullPointerException when setting attribute?
negative_passages.docid: 33103
negative_passages.text: How come invoking a (static) method on a null reference doesn't throw NullPointerException?
negative_passages.docid: 139881
negative_passages.text: why HTML Agility Pack HtmlDocument.DocumentNode is null?
negative_passages.docid: 141129
negative_passages.text: InputStream returning NullPointerException (Java)