--- old/src/jdk.compiler/share/classes/com/sun/tools/javac/model/AnnotationProxyMaker.java	2019-06-02 13:31:01.801542000 -0700
+++ new/src/jdk.compiler/share/classes/com/sun/tools/javac/model/AnnotationProxyMaker.java	2019-06-02 13:31:01.425354000 -0700
@@ -32,6 +32,7 @@
 import java.lang.reflect.Method;
 import java.util.LinkedHashMap;
 import java.util.Map;
+import java.util.stream.Collectors;
 import sun.reflect.annotation.*;
 
 import javax.lang.model.type.MirroredTypeException;
@@ -292,7 +293,7 @@
         }
 
         public String toString() {
-            return typeString;
+            return typeString + ".class";
         }
 
         public int hashCode() {
@@ -335,7 +336,9 @@
         }
 
         public String toString() {
-            return typeStrings;
+            return types.stream()
+                .map(t -> t.toString() + ".class")
+                .collect(Collectors.joining(", ", "{", "}"));
         }
 
         public int hashCode() {