src/java.xml/share/classes/javax/xml/parsers/DocumentBuilderFactory.java

@@ -116,11 +116,11 @@
      * Once an application has obtained a reference to a
      * {@code DocumentBuilderFactory} it can use the factory to
      * configure and obtain parser instances.
      *
      *
-     * <h2>Tip for Trouble-shooting</h2>
+     * <h4>Tip for Trouble-shooting</h4>
      * <p>
      * Setting the {@code jaxp.debug} system property will cause
      * this method to print a lot of debug messages
      * to {@code System.err} about what it is doing and where it is looking at.
      *

@@ -152,11 +152,11 @@
      *
      * <p>Once an application has obtained a reference to a {@code DocumentBuilderFactory}
      * it can use the factory to configure and obtain parser instances.
      *
      *
-     * <h2>Tip for Trouble-shooting</h2>
+     * <h4>Tip for Trouble-shooting</h4>
      * <p>Setting the {@code jaxp.debug} system property will cause
      * this method to print a lot of debug messages
      * to {@code System.err} about what it is doing and where it is looking at.
      *
      * <p> If you have problems try:

@@ -547,11 +547,11 @@
      * property in conjunction with a {@link Schema} object.
      * Such configuration will cause a {@link ParserConfigurationException}
      * exception when the {@link #newDocumentBuilder()} is invoked.
      *
      *
-     * <h3>Note for implementors</h3>
+     * <h4>Note for implementors</h4>
      *
      * <p>
      * A parser must be able to work with any {@link Schema}
      * implementation. However, parsers and schemas are allowed
      * to use implementation-specific custom mechanisms