Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
49
What is a NullPointerException, and how do I fix it?
73034
StringBuilder append() and null values
54143
Why is the default value of the string type null instead of an empty string?
152349
JAVA Object/String method overload
68787
Why The constructor ArrayAdapter(new View.OnKeyListener(){}, int, String[]) is undefined
10581
Avoiding NullPointerException in Java
122366
Java String array: is there a size of method?
140738
Does setting Java objects to null do anything anymore?
146476
Java: Why aren't NullPointerExceptions called NullReferenceExceptions?
87728
ArgumentNullException or NullReferenceException from extension method?
81518
Find out what variable is throwing a NullPointerException programmatically
89628
How to handle OutOfMemoryError in Java?
94946
The method format(String, Object[]) in the type String is not applicable for the arguments (String, int, int)
82652
String.length() vs Array.length
92187
Unable to cast object of type 'System.DBNull' to type 'System.String`
155957
Method causes OutOfMemory error
22639
Error : Type could not be marshaled because the length of an embedded array instance does not match the declared length in the layout