package java.util; import org.checkerframework.dataflow.qual.Pure; import org.checkerframework.dataflow.qual.SideEffectFree; import org.checkerframework.checker.nullness.qual.Nullable; public class EventObject implements java.io.Serializable { private static final long serialVersionUID = 0L; public EventObject(Object a1) { throw new RuntimeException("skeleton method"); } public Object getSource() { throw new RuntimeException("skeleton method"); } @SideEffectFree public String toString() { throw new RuntimeException("skeleton method"); } }