Attempt to invoke virtual method 'void android.app.ActionBar' on a null object reference
49
What is a NullPointerException, and how do I fix it?
114651
ViewModel's list is null in action
133310
Why isn't there a getContentView() method for Activity?
85964
Android: ClassNotFoundException when passing serializable object to Activity
20020
NullPointerException accessing views in onCreate()
80631
NullPointerException but compiling?
10581
Avoiding NullPointerException in Java
42958
Method Overloading for null argument
55274
Java: Exception itself is null
87728
ArgumentNullException or NullReferenceException from extension method?
1013
ActionBarSherlock with ViewPager not calling ViewPager fragments lifecycle methods when going to and returning from backstack
144423
"No enclosing instance of type" error while calling method from another class in Android
146476
Java: Why aren't NullPointerExceptions called NullReferenceExceptions?
35590
How to fix NullPointerException in Java?
69771
NullPointerException when setting attribute?
96453
Caught Throwable or Exception is null
57412
Is there a way to make Runnable's run() throw an exception?