query: Why am I getting a null pointer exception when a call to subclass method is made?
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 35590
negative_passages.text: How to fix NullPointerException in Java?
negative_passages.docid: 4069
negative_passages.text: How do I call one constructor from another in Java?
negative_passages.docid: 46857
negative_passages.text: Compiler warning: null reference exception
negative_passages.docid: 147603
negative_passages.text: How can I call a method in an object from outside the JVM?
negative_passages.docid: 45869
negative_passages.text: Why null cast a parameter?
negative_passages.docid: 127599
negative_passages.text: Odd situation for "cannot reference this before supertype constructor has been called"
negative_passages.docid: 144658
negative_passages.text: System.NullPointerException: Attempt to de-reference a null object ,sravn
negative_passages.docid: 66284
negative_passages.text: NullPointerException when Creating an Array of objects
negative_passages.docid: 42892
negative_passages.text: How do I check (at runtime) if one class is a subclass of another?
negative_passages.docid: 55274
negative_passages.text: Java: Exception itself is null
negative_passages.docid: 16028
negative_passages.text: Java listener must inherit from java.util.EventListener - why?
negative_passages.docid: 56124
negative_passages.text: Why do I get "Exception; must be caught or declared to be thrown" when I try to compile my Java code?
negative_passages.docid: 144423
negative_passages.text: "No enclosing instance of type" error while calling method from another class in Android
negative_passages.docid: 81518
negative_passages.text: Find out what variable is throwing a NullPointerException programmatically
negative_passages.docid: 54523
negative_passages.text: Why doesn't Java allow generic subclasses of Throwable?
negative_passages.docid: 42958
negative_passages.text: Method Overloading for null argument