Android Java - NullpointerException at view1.setAlpha?
49
What is a NullPointerException, and how do I fix it?
140738
Does setting Java objects to null do anything anymore?
24887
java.lang.NullPointerException at javax.faces.webapp.UIComponentClassicTagBase.setJspId
58054
When is it OK to catch NullPointerException?
33103
How come invoking a (static) method on a null reference doesn't throw NullPointerException?
2116
IllegalArgumentException or NullPointerException for a null parameter?
137692
NullPointerException when working with arrays
3984
How to fix 'android.os.NetworkOnMainThreadException'?
80631
NullPointerException but compiling?
19797
when EditText is empty and click calculateButton, app crashes
144658
System.NullPointerException: Attempt to de-reference a null object ,sravn
8950
how to setImage to null in android when the xml has src not null?
64332
avoiding null reference exceptions
98080
Android: Cannot invoke toString() on the primitive type int
61360
java.lang.IllegalArgumentException: View not attached to window manager
24517
MVC Spring Implementation - error: java.lang.NullPointerException
149666
Why can't a null-reference exception name the object that has a null reference?