void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
49
What is a NullPointerException, and how do I fix it?
35016
java.lang.NullPointerException at org.primefaces.component.datatable.feature.FilterFeature.filter
13711
java.lang.NullPointerException at org.glassfish.hk2.classmodel.reflect.impl.TypesImpl.getType
66284
NullPointerException when Creating an Array of objects
96046
Static fields on a null reference in Java
114816
Is null reference possible?
69180
onActivityResult() called prematurely
5052
RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'
92797
How to debug NullPointerException in selenium-java
80018
Accessing class members on a NULL pointer
35590
How to fix NullPointerException in Java?
10818
NullPointerException : println needs a message in android
31537
Checking for null before event dispatching... thread safe?
45196
Calling class method through NULL class pointer
98866
Null Pointer Exception on getGraphics()
4783
Android: View.setID(int id) programmatically - how to avoid ID conflicts?
119573
NullPointerException in Java with no StackTrace