output: #fixed code
                                  public void testXhtmlParsing() throws Exception {
          String path = "/test-documents/testXHTML.html";
          Metadata metadata = new Metadata();
          String content = Tika.parseToString(
                  HtmlParserTest.class.getResourceAsStream(path), metadata);
  
          assertEquals("application/xhtml+xml", metadata.get(Metadata.CONTENT_TYPE));
          assertEquals("XHTML test document", metadata.get(Metadata.TITLE));
  
          assertEquals("Tika Developers", metadata.get("Author"));
          assertEquals("5", metadata.get("refresh"));
          assertTrue(content.contains("ability of Apache Tika"));
          assertTrue(content.contains("extract content"));
          assertTrue(content.contains("an XHTML document"));
      }
input: #vulnerable code 
                                  public void testXhtmlParsing() throws Exception {
          Parser parser = new AutoDetectParser(); // Should auto-detect!
          ContentHandler handler = new BodyContentHandler();
          Metadata metadata = new Metadata();
  
          InputStream stream = HtmlParserTest.class.getResourceAsStream(
                  "/test-documents/testXHTML.html");
          try {
              parser.parse(stream, handler, metadata);
          } finally {
              stream.close();
          }
  
          assertEquals("application/xhtml+xml", metadata.get(Metadata.CONTENT_TYPE));
          assertEquals("XHTML test document", metadata.get(Metadata.TITLE));
          String content = handler.toString();
          assertEquals("Tika Developers", metadata.get("Author"));
          assertEquals("5", metadata.get("refresh"));
          assertTrue(content.contains("ability of Apache Tika"));
          assertTrue(content.contains("extract content"));
          assertTrue(content.contains("an XHTML document"));
      } 
                              #location 9 
                              #vulnerability type NULL_DEREFERENCE