--- /dev/null	2019-11-20 11:01:14.000000000 -0500
+++ new/src/jdk.incubator.jpackage/share/native/libapplauncher/main.cpp	2019-11-20 11:01:12.256708000 -0500
@@ -0,0 +1,180 @@
+/*
+ * Copyright (c) 2014, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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 "Platform.h"
+#include "PlatformString.h"
+#include "FilePath.h"
+#include "PropertyFile.h"
+#include "JavaVirtualMachine.h"
+#include "Package.h"
+#include "Macros.h"
+#include "Messages.h"
+
+#include <stdio.h>
+#include <signal.h>
+#include <stdlib.h>
+
+/*
+This is the app launcher program for application packaging on Windows, Mac,
+    and Linux.
+
+Basic approach:
+  - Launcher (jpackageapplauncher) is executable that loads
+    applauncher.dll/libapplauncher.dylib/libapplauncher.so
+    and calls start_launcher below.
+  - Reads app/package.cfg or Info.plist or app/<appname>.cfg for application
+    launch configuration (package.cfg is property file).
+  - Load Java with requested Java settings (bundled client Java if availble,
+    server or installed Java otherwise).
+  - Wait for Java to exit and then exit from Main
+  - To debug application by passing command line argument.
+  - Application folder is added to the library path (so LoadLibrary()) works.
+
+Limitations and future work:
+  - Running Java code in primordial thread may cause problems
+    (example: can not use custom stack size).
+    Solution used by java launcher is to create a new thread to invoke Java.
+    See CR 6316197 for more information.
+*/
+
+extern "C" {
+
+    JNIEXPORT bool start_launcher(int argc, TCHAR* argv[]) {
+        bool result = false;
+        bool parentProcess = true;
+
+        // Platform must be initialize first.
+        Platform& platform = Platform::GetInstance();
+
+        try {
+            for (int index = 0; index < argc; index++) {
+                TString argument = argv[index];
+
+                if (argument == _T("-Xappcds:generatecache")) {
+                    platform.SetAppCDSState(cdsGenCache);
+                }
+                else if (argument == _T("-Xappcds:off")) {
+                    platform.SetAppCDSState(cdsDisabled);
+                }
+                else if (argument == _T("-Xapp:child")) {
+                    parentProcess = false;
+                }
+            }
+
+            // Package must be initialized after Platform is fully initialized.
+            Package& package = Package::GetInstance();
+            Macros::Initialize();
+            package.SetCommandLineArguments(argc, argv);
+
+            switch (platform.GetAppCDSState()) {
+                case cdsDisabled:
+                case cdsUninitialized:
+                case cdsEnabled: {
+                    break;
+                }
+
+                case cdsGenCache: {
+                    TString cacheDirectory = package.GetAppCDSCacheDirectory();
+
+                    if (FilePath::DirectoryExists(cacheDirectory) == false) {
+                        FilePath::CreateDirectory(cacheDirectory, true);
+                    } else {
+                        TString cacheFileName =
+                                package.GetAppCDSCacheFileName();
+                        if (FilePath::FileExists(cacheFileName) == true) {
+                            FilePath::DeleteFile(cacheFileName);
+                        }
+                    }
+
+                    break;
+                }
+
+                case cdsAuto: {
+                    TString cacheFileName = package.GetAppCDSCacheFileName();
+
+                    if (parentProcess == true &&
+                            FilePath::FileExists(cacheFileName) == false) {
+                        AutoFreePtr<Process> process = platform.CreateProcess();
+                        std::vector<TString> args;
+                        args.push_back(_T("-Xappcds:generatecache"));
+                        args.push_back(_T("-Xapp:child"));
+                        process->Execute(
+                                platform.GetModuleFileName(), args, true);
+
+                        if (FilePath::FileExists(cacheFileName) == false) {
+                            // Cache does not exist after trying to generate it,
+                            // so run without cache.
+                            platform.SetAppCDSState(cdsDisabled);
+                            package.Clear();
+                            package.Initialize();
+                        }
+                    }
+
+                    break;
+                }
+            }
+
+            // Validation
+            switch (platform.GetAppCDSState()) {
+                case cdsDisabled:
+                case cdsGenCache: {
+                    // Do nothing.
+                    break;
+                }
+
+                case cdsEnabled:
+                case cdsAuto: {
+                    TString cacheFileName =
+                            package.GetAppCDSCacheFileName();
+
+                    if (FilePath::FileExists(cacheFileName) == false) {
+                        Messages& messages = Messages::GetInstance();
+                        TString message = PlatformString::Format(
+                                messages.GetMessage(
+                                APPCDS_CACHE_FILE_NOT_FOUND),
+                                cacheFileName.data());
+                        throw Exception(message);
+                    }
+                    break;
+                }
+
+                case cdsUninitialized: {
+                    platform.ShowMessage(_T("Internal Error"));
+                    break;
+                }
+            }
+
+            // Run App
+            result = RunVM();
+        } catch (Exception &e) {
+            platform.ShowMessage(e.GetMessage());
+        }
+
+        return result;
+    }
+
+    JNIEXPORT void stop_launcher() {
+    }
+}