--- old/src/hotspot/share/oops/klass.cpp	2020-04-12 17:29:56.000000000 -0700
+++ new/src/hotspot/share/oops/klass.cpp	2020-04-12 17:29:56.000000000 -0700
@@ -723,7 +723,7 @@
     name()->as_C_string(result, (int)name_len + 1);
     for (int index = (int)name_len; index > 0; index--) {
       if (result[index] == '+') {
-        result[index] = JVM_SIGNATURE_DOT;
+        result[index] = JVM_SIGNATURE_SLASH;
         break;
       }
     }