Caused by: java.lang.NullPointerException: Attempt to invoke virtual method
49
What is a NullPointerException, and how do I fix it?
20390
Virtual member call in a constructor
149666
Why can't a null-reference exception name the object that has a null reference?
33103
How come invoking a (static) method on a null reference doesn't throw NullPointerException?
15836
Cannot refer to a non-final variable inside an inner class defined in a different method
112328
Error: "an object reference is required for the non-static field, method or property..."
42958
Method Overloading for null argument
87189
System.NullPointerException
94335
How are virtual functions and vtable implemented?
45196
Calling class method through NULL class pointer
18250
What could cause java.lang.reflect.InvocationTargetException?
13711
java.lang.NullPointerException at org.glassfish.hk2.classmodel.reflect.impl.TypesImpl.getType
85964
Android: ClassNotFoundException when passing serializable object to Activity
10581
Avoiding NullPointerException in Java
24887
java.lang.NullPointerException at javax.faces.webapp.UIComponentClassicTagBase.setJspId
64332
avoiding null reference exceptions
147603
How can I call a method in an object from outside the JVM?