package java.io; import checkers.nullness.quals.*; public class IOException extends Exception { private static final long serialVersionUID = 0L; public IOException() { throw new RuntimeException("skeleton method"); } public IOException(@Nullable String message) { throw new RuntimeException("skeleton method"); } public IOException(@Nullable String message, @Nullable Throwable cause) { throw new RuntimeException("skeleton method"); } public IOException(@Nullable Throwable cause) { throw new RuntimeException("skeleton method"); } }