com.firebase.ui.database.FirebaseRecyclerAdapter.startListening()' on a null object reference
49
What is a NullPointerException, and how do I fix it?
67597
Can constructor return a null object?
50208
Android startCamera gives me null Intent and ... does it destroy my global variable?
58054
When is it OK to catch NullPointerException?
68787
Why The constructor ArrayAdapter(new View.OnKeyListener(){}, int, String[]) is undefined
64695
onDestroy() - to set or not to set instance variables to null?
80631
NullPointerException but compiling?
128142
java.lang.NullPointerException at org.apache.jsp.foo_jsp._jspInit(foo_jsp.java:22)
146476
Java: Why aren't NullPointerExceptions called NullReferenceExceptions?
79586
System.NullPointerException: Attempt to de-reference a null object
87189
System.NullPointerException
79477
Why is "null" present in C# and Java?
78238
Nullable type is not a nullable type?
156400
NullReferenceException when using NUnit
54938
Cannot invoke method or retrieve property from null object. Object returned by the following call stack is null. \"File\r\n\"
69771
NullPointerException when setting attribute?
73285
Null Pointer Exception in XMl Parsing