code: protected void build(XMLNode node, Content contentTree) throws DocletException {
          String component = node.name;
          try {
              String methodName = "build" + component;
              if (DEBUG) {
                  configuration.reporter.print(ERROR,
                          "DEBUG: " + getClass().getName() + "." + methodName);
              }
              Method method = getClass().getMethod(methodName, XMLNode.class, Content.class);
              method.invoke(this, node, contentTree);
  
          } catch (NoSuchMethodException e) {
              // Use SimpleDocletException instead of InternalException because there is nothing
              // informative about about the place the exception occurred, here in this method.
              // The problem is either a misconfigured doclet.xml file or a missing method in the
              // user-supplied(?) doclet
              String message = resources.getText("doclet.builder.unknown.component", component);
              throw new SimpleDocletException(message, e);
  
          } catch (InvocationTargetException e) {
              Throwable cause = e.getCause();
              if (cause instanceof DocletException) {
                  throw (DocletException) cause;
              } else if (cause instanceof UncheckedDocletException) {
                  throw (DocletException) cause.getCause();
              } else {
                  // use InternalException, so that a stacktrace showing the position of
                  // the internal exception is generated
                  String message = resources.getText("doclet.builder.exception.in.component", component,
                          e.getCause());
                  throw new InternalException(message, e.getCause());
              }
  
          } catch (ReflectiveOperationException e) {
              // Use SimpleDocletException instead of InternalException because there is nothing
              // informative about about the place the exception occurred, here in this method.
              // The problem is specific to the method being invoked, such as illegal access
              // or illegal argument.
              String message = resources.getText("doclet.builder.exception.in.component", component, e);
              throw new SimpleDocletException(message, e.getCause());
          }
      }
docs: Build the documentation, as specified by the given XML element.
  
  @param node the XML element that specifies which component to document.
  @param contentTree content tree to which the documentation will be added
  @throws DocletException if there is a problem building the documentation