--- a/src/hotspot/share/runtime/os.hpp	Wed Aug 10 20:17:42 2022
+++ b/src/hotspot/share/runtime/os.hpp	Thu Aug 11 11:42:41 2022
@@ -987,6 +987,8 @@
   class Bsd;
 #elif defined(LINUX)
   class Linux;
+#elif defined(SOLARIS)
+  class Solaris;
 #elif defined(_WINDOWS)
   class win32;
 #endif