src/java.base/share/classes/jdk/internal/module/ServicesCatalog.java

*** 169,176 ****
--- 169,186 ----
              if (previous != null) catalog = previous;
          }
          return catalog;
      }
  
+     /**
+      * Associates the given ServicesCatalog with the given class loader.
+      */
+     public static void putServicesCatalog(ClassLoader loader, ServicesCatalog catalog) {
+         ServicesCatalog previous = CLV.putIfAbsent(loader, catalog);
+         if (previous != null) {
+             throw new InternalError();
+         }
+     }
+ 
      // the ServicesCatalog registered to a class loader
      private static final ClassLoaderValue<ServicesCatalog> CLV = new ClassLoaderValue<>();
  }