instance of class cause nullPointerException
49
What is a NullPointerException, and how do I fix it?
144423
"No enclosing instance of type" error while calling method from another class in Android
13711
java.lang.NullPointerException at org.glassfish.hk2.classmodel.reflect.impl.TypesImpl.getType
119573
NullPointerException in Java with no StackTrace
110886
How to use Class in Java?
81565
getClass().getResource() always returning null
78681
How to print instances of a class using print()?
140738
Does setting Java objects to null do anything anymore?
134329
Can you use a string to instantiate a class?
96843
What will happen when I call a member function on a NULL object pointer?
146476
Java: Why aren't NullPointerExceptions called NullReferenceExceptions?
2116
IllegalArgumentException or NullPointerException for a null parameter?
108336
Nullable Object must have a value #2
58309
Error: unrecognized selector sent to instance
37988
System.NullPointerException: Attempt to de-reference a null object:
124773
NullPointerException when calling service in onResume
9073
Cannot make a static reference to the non-static method