src/java.base/share/classes/sun/invoke/util/VerifyAccess.java

*** 349,366 ****
       * If this is true, they can share private access with each other.
       * @param class1 a class
       * @param class2 another class
       * @return whether they are identical or nested together
       */
!     public static boolean areNestMates(Class<?> class1, Class<?> class2) {
          if (class1 == class2)
              return true;
          if (!isSamePackage(class1, class2))
              return false;
-         if (Reflection.areNestMates(class1, class2))
-             return true;
-         // Could be pre-nestmate nested types
          if (getOutermostEnclosingClass(class1) != getOutermostEnclosingClass(class2))
              return false;
          return true;
      }
  
--- 349,363 ----
       * If this is true, they can share private access with each other.
       * @param class1 a class
       * @param class2 another class
       * @return whether they are identical or nested together
       */
!     public static boolean isSamePackageMember(Class<?> class1, Class<?> class2) {
          if (class1 == class2)
              return true;
          if (!isSamePackage(class1, class2))
              return false;
          if (getOutermostEnclosingClass(class1) != getOutermostEnclosingClass(class2))
              return false;
          return true;
      }