Attempt to invoke interface method 'int java.util.List.size()' on a null object How Solve It?
49
What is a NullPointerException, and how do I fix it?
73120
Nullpointerexception when trying to send data from activity to class
155957
Method causes OutOfMemory error
111535
Why does the ArrayList implementation use Object[]?
58054
When is it OK to catch NullPointerException?
53085
How to initialize List object in Java?
137411
Is it possible to test list size from a VisualForce page?
146379
Java method dispatch with null argument
87189
System.NullPointerException
40950
Java7 ClassFormatError: Illegal local variable table length while creating the object
138823
Why cast null to Object?
98396
How can I get the size of an array, a Collection, or a String in Java?
132398
What is null in Java?
131308
Use cases for Object.create(null)
59517
FATAL_ERROR|System.QueryException: List has no rows for assignment to SObject
35129
Why does String.valueOf(null) throw a NullPointerException?
154262
List has no rows for assignment to SObject