package java.io;
public final class FileDescriptor{
public final static FileDescriptor in = null;
public final static FileDescriptor out = null;
public final static FileDescriptor err = null;
public FileDescriptor() { throw new RuntimeException("skeleton method"); }
public boolean valid() { throw new RuntimeException("skeleton method"); }
public native void sync() throws SyncFailedException;
synchronized void attach(Closeable c) { throw new RuntimeException("skeleton method"); }
synchronized void closeAll(Closeable releaser) throws IOException { throw new RuntimeException("skeleton method"); }
}