--- old/src/hotspot/os/solaris/osThread_solaris.hpp	2020-05-01 02:29:35.500265470 -0700
+++ /dev/null	2020-03-09 18:57:19.455001459 -0700
@@ -1,88 +0,0 @@
-/*
- * Copyright (c) 1997, 2019, 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.
- *
- */
-
-#ifndef OS_SOLARIS_OSTHREAD_SOLARIS_HPP
-#define OS_SOLARIS_OSTHREAD_SOLARIS_HPP
-
-// This is embedded via include into the class OSThread
- public:
-  typedef thread_t thread_id_t;
-
- private:
-  uint     _lwp_id;            // lwp ID, only used with bound threads
-  int      _native_priority;   // Saved native priority when starting
-                               // a bound thread
-  sigset_t _caller_sigmask;    // Caller's signal mask
-  bool     _vm_created_thread; // true if the VM created this thread,
-                               // false if primary thread or attached thread
- public:
-  uint     lwp_id() const          { return _lwp_id; }
-  int      native_priority() const { return _native_priority; }
-
-  // Set and get state of _vm_created_thread flag
-  void set_vm_created()           { _vm_created_thread = true; }
-  bool is_vm_created()            { return _vm_created_thread; }
-
-  // Methods to save/restore caller's signal mask
-  sigset_t  caller_sigmask() const       { return _caller_sigmask; }
-  void    set_caller_sigmask(sigset_t sigmask)  { _caller_sigmask = sigmask; }
-
-#ifndef PRODUCT
-  // Used for debugging, return a unique integer for each thread.
-  int thread_identifier() const   { return _thread_id; }
-#endif
-#ifdef ASSERT
-  // On solaris reposition can fail in two ways:
-  // 1: a mismatched pc, because signal is delivered too late, target thread
-  //    is resumed.
-  // 2: on a timeout where signal is lost, target thread is resumed.
-  bool valid_reposition_failure() {
-    // only 1 and 2 can happen and we can handle both of them
-    return true;
-  }
-#endif
-  void set_lwp_id(uint id)           { _lwp_id = id; }
-  void set_native_priority(int prio) { _native_priority = prio; }
-
- public:
-  os::SuspendResume sr;
-
- private:
-  ucontext_t* _ucontext;
-
- public:
-  ucontext_t* ucontext() const { return _ucontext; }
-  void set_ucontext(ucontext_t* ptr) { _ucontext = ptr; }
-  static void SR_handler(Thread* thread, ucontext_t* uc);
-
-  // ***************************************************************
-  // Platform dependent initialization and cleanup
-  // ***************************************************************
-
-private:
-
-  void pd_initialize();
-  void pd_destroy();
-
-#endif // OS_SOLARIS_OSTHREAD_SOLARIS_HPP