java.lang.NullPointerException: Attempt to invoke interface method on a null object reference
49
What is a NullPointerException, and how do I fix it?
140738
Does setting Java objects to null do anything anymore?
7534
Java error: class, interface, or enum expected
149357
javax.faces.FacesException: java.lang.ClassCastException: java.lang.String cannot be cast to javax.faces.component.UIComponent
81518
Find out what variable is throwing a NullPointerException programmatically
8424
Interface communication from fragment to activity issue
85964
Android: ClassNotFoundException when passing serializable object to Activity
112328
Error: "an object reference is required for the non-static field, method or property..."
6882
try catch exception always returns null
98780
Test Method throwing null pointer exception on custom setting
144658
System.NullPointerException: Attempt to de-reference a null object ,sravn
130819
Nullpointerexception while setting a bean
144423
"No enclosing instance of type" error while calling method from another class in Android
10581
Avoiding NullPointerException in Java
64332
avoiding null reference exceptions
88563
Exception cannot be converted to Throwable
55274
Java: Exception itself is null