src/java.base/share/classes/sun/util/locale/provider/JRELocaleProviderAdapter.java

*** 1,7 ****
  /*
!  * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 48,57 ****
--- 48,58 ----
  import java.util.spi.CalendarNameProvider;
  import java.util.spi.CurrencyNameProvider;
  import java.util.spi.LocaleNameProvider;
  import java.util.spi.LocaleServiceProvider;
  import java.util.spi.TimeZoneNameProvider;
+ import sun.text.spi.JavaTimeDateTimePatternProvider;
  import sun.util.resources.LocaleData;
  import sun.util.spi.CalendarProvider;
  
  /**
   * LocaleProviderAdapter implementation for the legacy JRE locale data.
*** 107,116 ****
--- 108,119 ----
              return (P) getCalendarDataProvider();
          case "CalendarNameProvider":
              return (P) getCalendarNameProvider();
          case "CalendarProvider":
              return (P) getCalendarProvider();
+         case "JavaTimeDateTimePatternProvider":
+             return (P) getJavaTimeDateTimePatternProvider();
          default:
              throw new InternalError("should not come down here");
          }
      }
  
*** 126,135 ****
--- 129,139 ----
      private volatile TimeZoneNameProvider timeZoneNameProvider;
      private volatile CalendarDataProvider calendarDataProvider;
      private volatile CalendarNameProvider calendarNameProvider;
  
      private volatile CalendarProvider calendarProvider;
+     private volatile JavaTimeDateTimePatternProvider javaTimeDateTimePatternProvider;
  
      /*
       * Getter methods for java.text.spi.* providers
       */
      @Override
*** 352,361 ****
--- 356,386 ----
              }
          }
          return calendarProvider;
      }
  
+     /**
+      * Getter methods for sun.text.spi.JavaTimeDateTimePatternProvider provider
+      */
+     @Override
+     public JavaTimeDateTimePatternProvider getJavaTimeDateTimePatternProvider() {
+         if (javaTimeDateTimePatternProvider == null) {
+             JavaTimeDateTimePatternProvider provider = AccessController.doPrivileged(
+                     (PrivilegedAction<JavaTimeDateTimePatternProvider>) ()
+                     -> new JavaTimeDateTimePatternImpl(
+                             getAdapterType(),
+                             getLanguageTagSet("FormatData")));
+ 
+             synchronized (this) {
+                 if (javaTimeDateTimePatternProvider == null) {
+                     javaTimeDateTimePatternProvider = provider;
+                 }
+             }
+         }
+         return javaTimeDateTimePatternProvider;
+     }
+ 
      @Override
      public LocaleResources getLocaleResources(Locale locale) {
          LocaleResources lr = localeResourcesMap.get(locale);
          if (lr == null) {
              lr = new LocaleResources(this, locale);