output: #fixed code
                                  public Template include(String name, Locale locale, String encoding) throws IOException, ParseException {
          if (name == null || name.length() == 0) {
              throw new IllegalArgumentException("include template name == null");
          }
          String macro = null;
  		int i = name.indexOf('#');
          if (i > 0) {
          	macro = name.substring(i + 1);
          	name = name.substring(0, i);
          }
          Template template = Context.getContext().getTemplate();
          if (template != null) {
              if (encoding == null || encoding.length() == 0) {
                  encoding = template.getEncoding();
              }
              name = UrlUtils.relativeUrl(name, template.getName());
              if (locale == null) {
              	locale = template.getLocale();
              }
          }
          Template include = engine.getTemplate(name, locale, encoding);
          if (macro != null && macro.length() > 0) {
          	include = include.getMacros().get(macro);
  		}
          if (template != null && template == include) {
          	throw new IllegalStateException("The template " + template.getName() + " can not be recursive including the self template.");
          }
          return include;
      }
input: #vulnerable code 
                                  public Template include(String name, Locale locale, String encoding) throws IOException, ParseException {
          if (name == null || name.length() == 0) {
              throw new IllegalArgumentException("include template name == null");
          }
          String macro = null;
  		int i = name.indexOf('#');
          if (i > 0) {
          	macro = name.substring(i + 1);
          	name = name.substring(0, i);
          }
          Template template = Context.getContext().getTemplate();
          if (template != null) {
              if (encoding == null || encoding.length() == 0) {
                  encoding = template.getEncoding();
              }
              name = UrlUtils.relativeUrl(name, template.getName());
              if (locale == null) {
              	locale = template.getLocale();
              }
          }
          Template include = engine.getTemplate(name, locale, encoding);
          if (macro != null && macro.length() > 0) {
          	include = include.getMacros().get(macro);
  		}
          if (include == template) {
          	throw new IllegalStateException("The template " + template.getName() + " can not be recursive including the self template.");
          }
          return include;
      } 
                              #location 26 
                              #vulnerability type NULL_DEREFERENCE