RFR: XXS: JDK-8213102: Oracle Unilinks are [301 Moved Permanently] to https://docs.oracle.com

[Jonathan Gibbons]

Please review the following simple fix to change the host for Oracle 
Unilinks from www.oracle.com to docs.oracle.com to avoid unnecessary 
redirects.

JBS: https://bugs.openjdk.java.net/browse/JDK-8213102

The fix was done with the following command:

grep -rl oracle.com/pls open/make | xargs sed --in-place 
's|www.oracle.com/pls|docs.oracle.com/pls|g'

-- Jon


Patch inline:

$ hg diff -R open
diff -r 3152b928769d make/Docs.gmk
--- a/make/Docs.gmk     Mon Oct 29 11:05:45 2018 -0700
+++ b/make/Docs.gmk     Mon Oct 29 11:45:11 2018 -0700
@@ -61,7 +61,7 @@
      $(SUPPORT_OUTPUTDIR)/rmic/* $(TOPDIR)/src/*/share/doc/stub)

  # URLs
-JAVADOC_BASE_URL := 
https://www.oracle.com/pls/topic/lookup?ctx=javase$(VERSION_NUMBER)&id=homepage
+JAVADOC_BASE_URL := 
https://docs.oracle.com/pls/topic/lookup?ctx=javase$(VERSION_NUMBER)&id=homepage
  BUG_SUBMIT_URL := https://bugreport.java.com/bugreport/
  COPYRIGHT_URL := {@docroot}/../legal/copyright.html
  LICENSE_URL := 
https://www.oracle.com/technetwork/java/javase/terms/license/java$(VERSION_NUMBER)speclicense.html
diff -r 3152b928769d make/jdk/src/classes/build/tools/taglet/ExtLink.java
--- a/make/jdk/src/classes/build/tools/taglet/ExtLink.java      Mon Oct 
29 11:05:45 2018 -0700
+++ b/make/jdk/src/classes/build/tools/taglet/ExtLink.java      Mon Oct 
29 11:45:11 2018 -0700
@@ -48,7 +48,7 @@
   * will produce the following html
   * <p>
   * {@code
- * Please see <a 
href="https://www.oracle.com/pls/topic/lookup?ctx=javase10&id=Borealis">a 
spectacular</a> sight.
+ * Please see <a 
href="https://docs.oracle.com/pls/topic/lookup?ctx=javase10&id=Borealis">a 
spectacular</a> sight.
   * }
   */
  public class ExtLink implements Taglet {
@@ -63,7 +63,7 @@

      static final String TAG_NAME = "extLink";

-    static final String URL = 
"https://www.oracle.com/pls/topic/lookup?ctx=javase" +
+    static final String URL = 
"https://docs.oracle.com/pls/topic/lookup?ctx=javase" +
          SPEC_VERSION + "&id=";

      static final Pattern TAG_PATTERN = 
Pattern.compile("(?s)(\\s*)(?<name>\\w+)(\\s+)(?<desc>.*)$");