package java.util; import checkers.igj.quals.*; @I public class EventObject implements java.io.Serializable { private static final long serialVersionUID = 0L; public EventObject(@I Object a1) { throw new RuntimeException("skeleton method"); } public @I Object getSource() @ReadOnly { throw new RuntimeException("skeleton method"); } public String toString() @ReadOnly { throw new RuntimeException("skeleton method"); } }