public Map<String, Object> getSession() {
   return context.getSession();
 }
 public Map<String, Object> getAttributes() {
   return context.getAttributes();
 }
 public final int getHeight() {
   return context.getHeight();
 }
 public final int getWidth() {
   return context.getWidth();
 }
 public final String readLine(String msg, boolean echo) {
   return context.readLine(msg, echo);
 }
 public final String getProperty(String propertyName) {
   return context.getProperty(propertyName);
 }
 public final boolean releaseAlternateBuffer() throws IOException {
   return context.releaseAlternateBuffer();
 }