--- old/src/hotspot/os/posix/os_posix.inline.hpp	2020-05-01 02:25:40.263740663 -0700
+++ new/src/hotspot/os/posix/os_posix.inline.hpp	2020-05-01 02:25:39.863732969 -0700
@@ -45,8 +45,6 @@
 
 #endif // SUPPORTS_CLOCK_MONOTONIC
 
-#ifndef SOLARIS
-
 // Platform Mutex/Monitor implementation
 
 inline void os::PlatformMutex::lock() {
@@ -75,6 +73,4 @@
   assert_status(status == 0, status, "cond_broadcast");
 }
 
-#endif // !SOLARIS
-
 #endif // OS_POSIX_OS_POSIX_INLINE_HPP