query: java.lang.NullPointerException: Attempt to invoke virtual method android studio
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 23317
negative_passages.text: How do I fix a NoSuchMethodError?
negative_passages.docid: 88384
negative_passages.text: NoSuchMethodError error for getActionBar() (API-8)
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: 92797
negative_passages.text: How to debug NullPointerException in selenium-java
negative_passages.docid: 95009
negative_passages.text: Call Activity method from adapter
negative_passages.docid: 78586
negative_passages.text: Why doesn't "System.out.println" work in Android?
negative_passages.docid: 8808
negative_passages.text: Strange Java null behavior in Method Overloading
negative_passages.docid: 20390
negative_passages.text: Virtual member call in a constructor
negative_passages.docid: 10818
negative_passages.text: NullPointerException : println needs a message in android
negative_passages.docid: 58054
negative_passages.text: When is it OK to catch NullPointerException?
negative_passages.docid: 134746
negative_passages.text: Where do "pure virtual function call" crashes come from?
negative_passages.docid: 119573
negative_passages.text: NullPointerException in Java with no StackTrace
negative_passages.docid: 77729
negative_passages.text: How to extend from AsyncTask as a generic base class?
negative_passages.docid: 158745
negative_passages.text: onActivityResult is not being called in Fragment
negative_passages.docid: 62797
negative_passages.text: Calling virtual method in base class constructor
negative_passages.docid: 55647
negative_passages.text: the method getApplicationContext() is undefined