query: java.lang.NullPointerException, Attempt to read from field on a null object reference, on an Android app
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 69771
negative_passages.text: NullPointerException when setting attribute?
negative_passages.docid: 33474
negative_passages.text: I can read from /dev/null; how to fix it?
negative_passages.docid: 11458
negative_passages.text: NullReferenceException in Unity
negative_passages.docid: 128142
negative_passages.text: java.lang.NullPointerException at org.apache.jsp.foo_jsp._jspInit(foo_jsp.java:22)
negative_passages.docid: 87189
negative_passages.text: System.NullPointerException
negative_passages.docid: 19797
negative_passages.text: when EditText is empty and click calculateButton, app crashes
negative_passages.docid: 112328
negative_passages.text: Error: "an object reference is required for the non-static field, method or property..."
negative_passages.docid: 10867
negative_passages.text: How to avoid ArrayIndexOutOfBoundsException or IndexOutOfBoundsException?
negative_passages.docid: 55274
negative_passages.text: Java: Exception itself is null
negative_passages.docid: 88920
negative_passages.text: Is using NULL references OK?
negative_passages.docid: 38191
negative_passages.text: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'
negative_passages.docid: 28775
negative_passages.text: Unable to catch JsonMappingException
negative_passages.docid: 6882
negative_passages.text: try catch exception always returns null
negative_passages.docid: 119573
negative_passages.text: NullPointerException in Java with no StackTrace
negative_passages.docid: 44087
negative_passages.text: ArrayAdapter requires ID to be a TextView error
negative_passages.docid: 33103
negative_passages.text: How come invoking a (static) method on a null reference doesn't throw NullPointerException?