query: Attempt to invoke virtual method 'boolean ...' on a null object reference
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 109951
negative_passages.text: How to convert String object to Boolean Object?
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: 37988
negative_passages.text: System.NullPointerException: Attempt to de-reference a null object:
negative_passages.docid: 17030
negative_passages.text: Why is Java's boolean primitive size not defined?
negative_passages.docid: 46857
negative_passages.text: Compiler warning: null reference exception
negative_passages.docid: 80631
negative_passages.text: NullPointerException but compiling?
negative_passages.docid: 140738
negative_passages.text: Does setting Java objects to null do anything anymore?
negative_passages.docid: 17784
negative_passages.text: Java if ternary operator and Collections.emptyList()
negative_passages.docid: 105722
negative_passages.text: boolean properties starting with "is" does not work
negative_passages.docid: 147603
negative_passages.text: How can I call a method in an object from outside the JVM?
negative_passages.docid: 123797
negative_passages.text: Not equal  != operator on NULL
negative_passages.docid: 2116
negative_passages.text: IllegalArgumentException or NullPointerException for a null parameter?
negative_passages.docid: 116849
negative_passages.text: How do I invert BooleanToVisibilityConverter?
negative_passages.docid: 54938
negative_passages.text: Cannot invoke method or retrieve property from null object. Object returned by the following call stack is null. \"File\r\n\"
negative_passages.docid: 46484
negative_passages.text: Can't cast int to bool
negative_passages.docid: 95
negative_passages.text: Calling virtual functions inside constructors