src/java.base/share/classes/java/lang/StringConcatHelper.java

rev 58565 : 8238358: Implementation of JEP 371: Hidden Classes
Reviewed-by: duke
Contributed-by: mandy.chung@oracle.com, lois.foltan@oracle.com, david.holmes@oracle.com, harold.seigel@oracle.com, serguei.spitsyn@oracle.com, alex.buckley@oracle.com, jamsheed.c.m@oracle.com

*** 26,35 ****
--- 26,39 ----
  package java.lang;
  
  import jdk.internal.misc.Unsafe;
  import jdk.internal.vm.annotation.ForceInline;
  
+ import java.lang.invoke.MethodHandle;
+ import java.lang.invoke.MethodHandles;
+ import java.lang.invoke.MethodType;
+ 
  /**
   * Helper for string concatenation. These methods are mostly looked up with private lookups
   * from {@link java.lang.invoke.StringConcatFactory}, and used in {@link java.lang.invoke.MethodHandle}
   * combinators there.
   */
*** 464,469 ****
--- 468,482 ----
       */
      static long initialCoder() {
          return String.COMPACT_STRINGS ? LATIN1 : UTF16;
      }
  
+     static MethodHandle lookupStatic(String name, MethodType methodType) {
+         try {
+             return MethodHandles.lookup().findStatic(StringConcatHelper.class, name, methodType);
+         } catch (NoSuchMethodException|IllegalAccessException e) {
+             throw new AssertionError(e);
+         }
+     }
+ 
+ 
  }