Null Pointer Exception: Attempt to invoke virtual method on a null object reference
49
What is a NullPointerException, and how do I fix it?
115292
virtual function calls in constructor and destructor
147603
How can I call a method in an object from outside the JVM?
96453
Caught Throwable or Exception is null
95
Calling virtual functions inside constructors
35590
How to fix NullPointerException in Java?
23964
Why does Java have a "NullPointerException" when there are no pointers in Java?
35448
Virtual multiple inheritance - final overrider
98780
Test Method throwing null pointer exception on custom setting
11458
NullReferenceException in Unity
39095
Is there any reason not to make a member function virtual?
96843
What will happen when I call a member function on a NULL object pointer?
69771
NullPointerException when setting attribute?
119573
NullPointerException in Java with no StackTrace
88620
What are Virtual Methods?
96046
Static fields on a null reference in Java
131864
Member '' cannot be accessed with an instance reference