NullReferenceException when triggering event from another class
289
What is a NullReferenceException, and how do I fix it?
10581
Avoiding NullPointerException in Java
126764
Unable to use built in events (Event Reference)
88920
Is using NULL references OK?
15836
Cannot refer to a non-final variable inside an inner class defined in a different method
126921
Nonstatic method cannot be reference from a Static context
52995
Apex : CANNOT_INSERT_UPDATE_ACTIVATE_ENTITY & SELF_REFERENCE_FROM_TRIGGER
80299
Java Error: Cannot make a static reference to the non-static method
81518
Find out what variable is throwing a NullPointerException programmatically
35590
How to fix NullPointerException in Java?
127599
Odd situation for "cannot reference this before supertype constructor has been called"
33613
Why is this trigger finding a null value despite the field being populated?
9073
Cannot make a static reference to the non-static method
92446
C#: How to pass null to a function expecting a ref?
107423
After ExecuteScalar: Object reference not set etc
87728
ArgumentNullException or NullReferenceException from extension method?
118775
how to get class/id from ui & event