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  1. JDK
  2. JDK-8249867

xml declaration is not followed by a newline

    Details

    • Type: Bug
    • Status: Open
    • Priority: P4
    • Resolution: Unresolved
    • Affects Version/s: 11, 15
    • Fix Version/s: tbd
    • Component/s: xml
    • Subcomponent:
    • CPU:
      generic
    • OS:
      generic

      Description

      A DESCRIPTION OF THE PROBLEM :
      Using LSSerializer to pretty-print a DOM results in an xml-declaration being not followed by a newline.

      Related to bugs #7150637 and #8054115.

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      Run the following code.

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      <?xml version="1.0" encoding="UTF-8"?>
      <sometag/>
      ACTUAL -
      <?xml version="1.0" encoding="UTF-8"?><sometag/>

      ---------- BEGIN SOURCE ----------
      package io.github.oliviercailloux.jaris.xml;

      import java.io.StringWriter;

      import javax.xml.parsers.DocumentBuilder;
      import javax.xml.parsers.DocumentBuilderFactory;

      import org.w3c.dom.Document;
      import org.w3c.dom.Element;
      import org.w3c.dom.ls.DOMImplementationLS;
      import org.w3c.dom.ls.LSOutput;
      import org.w3c.dom.ls.LSSerializer;

      public class Snippet {
      public static void main(String[] args) throws Exception {
      final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
      final DocumentBuilder builder = factory.newDocumentBuilder();
      final Document document = builder.newDocument();

      final Element child = document.createElement("sometag");
      document.appendChild(child);

      final DOMImplementationLS impl = (DOMImplementationLS) document.getImplementation().getFeature("LS", "3.0");
      final LSSerializer ser = impl.createLSSerializer();
      /** But see https://bugs.openjdk.java.net/browse/JDK-7150637 */
      /**
      * But see
      * <a href="https://bugs.openjdk.java.net/browse/JDK-8054115">8054115</a>:
      * LSSerializer remove a '\n' following the xml declaration
      */
      ser.getDomConfig().setParameter("format-pretty-print", true);
      final StringWriter writer = new StringWriter();
      final LSOutput output = impl.createLSOutput();
      output.setCharacterStream(writer);
      ser.write(document, output);

      System.out.println(writer.toString());
      }
      }

      ---------- END SOURCE ----------

      FREQUENCY : always


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              • Assignee:
                joehw Joe Wang
                Reporter:
                webbuggrp Webbug Group
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                Dates

                • Created:
                  Updated: