A handful of references in the JavaDoc API to the Specification in the "specs" directory are broken. The provided URLs either not include "{@docRoot}" or include the non-existent "{@docRootParent}". All of the links should begin with "{@docRoot}/../specs/" as follows:

diff -r a2c92332c6ba src/java.se/share/classes/module-info.java
--- a/src/java.se/share/classes/module-info.java Mon May 21 12:49:03 2018 -0700
+++ b/src/java.se/share/classes/module-info.java Mon May 21 13:58:08 2018 -0700
@@ -30,9 +30,9 @@
  * <dl>
  * <dt class="simpleTagLabel" style="font-family:'DejaVu Sans', Arial, Helvetica, sans serif">Optional for the Java SE Platform:</dt>
  * <dd>
- * <a href="../specs/jni/index.html">Java Native Interface (JNI)</a><br>
- * <a href="../specs/jvmti.html">Java Virtual Machine Tool Interface (JVM TI)</a><br>
- * <a href="../specs/jdwp/jdwp-spec.html">Java Debug Wire Protocol (JDWP)</a><br>
+ * <a href="{@docRoot}/../specs/jni/index.html">Java Native Interface (JNI)</a><br>
+ * <a href="{@docRoot}/../specs/jvmti.html">Java Virtual Machine Tool Interface (JVM TI)</a><br>
+ * <a href="{@docRoot}/../specs/jdwp/jdwp-spec.html">Java Debug Wire Protocol (JDWP)</a><br>
  * </dd>
  * </dl>
  *
diff -r a2c92332c6ba src/jdk.compiler/share/classes/com/sun/source/doctree/package-info.java
--- a/src/jdk.compiler/share/classes/com/sun/source/doctree/package-info.java Mon May 21 12:49:03 2018 -0700
+++ b/src/jdk.compiler/share/classes/com/sun/source/doctree/package-info.java Mon May 21 13:58:08 2018 -0700
@@ -30,7 +30,7 @@
  * @author Jonathan Gibbons
  * @since 1.8
  *
- * @see <a href="{@docRootParent}/specs/doc-comment-spec.html">
+ * @see <a href="{@docRoot}/../specs/doc-comment-spec.html">
  * Documentation Comment Specification for the Standard Doclet</a>
  */
 package com.sun.source.doctree;
diff -r a2c92332c6ba src/jdk.javadoc/share/classes/jdk/javadoc/doclet/StandardDoclet.java
--- a/src/jdk.javadoc/share/classes/jdk/javadoc/doclet/StandardDoclet.java Mon May 21 12:49:03 2018 -0700
+++ b/src/jdk.javadoc/share/classes/jdk/javadoc/doclet/StandardDoclet.java Mon May 21 13:58:08 2018 -0700
@@ -36,7 +36,7 @@
  * This doclet generates HTML-formatted documentation for the specified modules,
  * packages and types.
  *
- * @see <a href="{@docRootParent}/specs/doc-comment-spec.html">
+ * @see <a href="{@docRoot}/../specs/doc-comment-spec.html">
  * Documentation Comment Specification for the Standard Doclet</a>
  */
 public class StandardDoclet implements Doclet {
diff -r a2c92332c6ba src/jdk.javadoc/share/classes/module-info.java
--- a/src/jdk.javadoc/share/classes/module-info.java Mon May 21 12:49:03 2018 -0700
+++ b/src/jdk.javadoc/share/classes/module-info.java Mon May 21 13:58:08 2018 -0700
@@ -51,7 +51,7 @@
  * @provides javax.tools.DocumentationTool
  * @provides javax.tools.Tool
  *
- * @see <a href="{@docRootParent}/specs/doc-comment-spec.html">
+ * @see <a href="{@docRoot}/../specs/doc-comment-spec.html">
  * Documentation Comment Specification for the Standard Doclet</a>
  *
  * @moduleGraph
diff -r a2c92332c6ba src/jdk.jdwp.agent/share/classes/module-info.java
--- a/src/jdk.jdwp.agent/share/classes/module-info.java Mon May 21 12:49:03 2018 -0700
+++ b/src/jdk.jdwp.agent/share/classes/module-info.java Mon May 21 13:58:08 2018 -0700
@@ -28,8 +28,8 @@
  *
  * @moduleGraph
  * @since 9
- * @see <a href="../specs/jdwp/jdwp-spec.html">JDWP Specification</a>
- * @see <a href="../specs/jdwp/jdwp-transport.html">JDWP Transport Specification</a>
+ * @see <a href="{@docRoot}/../specs/jdwp/jdwp-spec.html">JDWP Specification</a>
+ * @see <a href="{@docRoot}/../specs/jdwp/jdwp-transport.html">JDWP Transport Specification</a>
  */
 module jdk.jdwp.agent {
 }