package java.io; import org.checkerframework.checker.nullness.qual.Nullable; public abstract class OutputStream implements Closeable, Flushable { public OutputStream() { throw new RuntimeException("skeleton method"); } public abstract void write(int a1) throws IOException; public void write(byte[] a1) throws IOException { throw new RuntimeException("skeleton method"); } public void write(byte[] a1, int a2, int a3) throws IOException { throw new RuntimeException("skeleton method"); } public void flush() throws IOException { throw new RuntimeException("skeleton method"); } public void close() throws IOException { throw new RuntimeException("skeleton method"); } }