Method returns null unexpectedly
49
What is a NullPointerException, and how do I fix it?
71969
calling a method not getting result
94973
Why type "int" is never equal to 'null'?
66856
Method does not exist or incorrect signature?
87728
ArgumentNullException or NullReferenceException from extension method?
40674
What is the difference between null and undefined in JavaScript?
79586
System.NullPointerException: Attempt to de-reference a null object
79477
Why is "null" present in C# and Java?
24249
When is the Killing form null?
8738
Should a retrieval method return 'null' or throw an exception when it can't produce the return value?
72088
Why shouldn't we allow NULLs?
20020
NullPointerException accessing views in onCreate()
81624
Is returning null bad design?
58054
When is it OK to catch NullPointerException?
6882
try catch exception always returns null
151469
What is the difference between null and System.DBNull.Value?
45196
Calling class method through NULL class pointer