diff -r 14e098407bb0 -r ad69fd32778e src/jdk.compiler/share/classes/com/sun/tools/javac/util/Names.java
--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/util/Names.java	Mon Oct 21 15:11:44 2019 +0200
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/util/Names.java	Mon Oct 21 15:38:26 2019 +0200
@@ -86,6 +86,7 @@
     public final Name error;
     public final Name finalize;
     public final Name forRemoval;
+    public final Name essentialAPI;
     public final Name getClass;
     public final Name hasNext;
     public final Name hashCode;
@@ -236,6 +237,7 @@
         error = fromString("<error>");
         finalize = fromString("finalize");
         forRemoval = fromString("forRemoval");
+        essentialAPI = fromString("essentialAPI");
         getClass = fromString("getClass");
         hasNext = fromString("hasNext");
         hashCode = fromString("hashCode");