Uses of Class
java.lang.NullPointerException

Packages that use NullPointerException 
Package Description
java.awt
Contains all of the classes for creating user interfaces and for painting graphics and images.
java.awt.print
Provides classes and interfaces for a general printing API.
javax.management
Provides the core classes for the Java Management Extensions.
org.xml.sax.helpers
Provides helper classes, including support for bootstrapping SAX-based applications.