diff -r ae0af9fb3dbb -r cba8afa5cfed src/java.base/share/native/include/classfile_constants.h.template
--- a/src/java.base/share/native/include/classfile_constants.h.template	Mon Oct 21 09:26:14 2019 -0700
+++ b/src/java.base/share/native/include/classfile_constants.h.template	Mon Oct 21 13:13:16 2019 -0400
@@ -144,6 +144,10 @@
 /* Type signatures */
 
 enum {
+    JVM_SIGNATURE_SLASH         = '/',
+    JVM_SIGNATURE_DOT           = '.',
+    JVM_SIGNATURE_SPECIAL       = '<',
+    JVM_SIGNATURE_ENDSPECIAL    = '>',
     JVM_SIGNATURE_ARRAY         = '[',
     JVM_SIGNATURE_BYTE          = 'B',
     JVM_SIGNATURE_CHAR          = 'C',