--- old/src/hotspot/os/solaris/threadCritical_solaris.cpp	2020-05-01 02:29:40.872368803 -0700
+++ /dev/null	2020-03-09 18:57:19.455001459 -0700
@@ -1,76 +0,0 @@
-/*
- * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#include "precompiled.hpp"
-#include "runtime/os.hpp"
-#include "runtime/thread.inline.hpp"
-#include "runtime/threadCritical.hpp"
-
-// OS-includes here
-#include <thread.h>
-#include <synch.h>
-
-//
-// See threadCritical.hpp for details of this class.
-//
-// For some reason, we don't do locking until the
-// os::init() call completes. I'm not sure why this
-// is, and have left it that way for now. This should
-// be reviewed later.
-
-static  mutex_t  global_mut;
-static  thread_t global_mut_owner = -1;
-static  int      global_mut_count = 0;
-
-ThreadCritical::ThreadCritical() {
-  if (os::Solaris::synchronization_initialized()) {
-    thread_t owner = thr_self();
-    if (global_mut_owner != owner) {
-      if (os::Solaris::mutex_lock(&global_mut))
-        fatal("ThreadCritical::ThreadCritical: mutex_lock failed (%s)",
-              os::strerror(errno));
-      assert(global_mut_count == 0, "must have clean count");
-      assert(global_mut_owner == -1, "must have clean owner");
-    }
-    global_mut_owner = owner;
-    ++global_mut_count;
-  } else {
-    assert (Threads::number_of_threads() == 0, "valid only during initialization");
-  }
-}
-
-ThreadCritical::~ThreadCritical() {
-  if (os::Solaris::synchronization_initialized()) {
-    assert(global_mut_owner == thr_self(), "must have correct owner");
-    assert(global_mut_count > 0, "must have correct count");
-    --global_mut_count;
-    if (global_mut_count == 0) {
-      global_mut_owner = -1;
-      if (os::Solaris::mutex_unlock(&global_mut))
-        fatal("ThreadCritical::~ThreadCritical: mutex_unlock failed (%s)", os::strerror(errno));
-    }
-  } else {
-    assert (Threads::number_of_threads() == 0, "valid only during initialization");
-  }
-}