8267764: jpackage cannot handle window screensaver files when EXE ren…

…amed as SCR

Reviewed-by: asemenyuk, almatvee

src/jdk.jpackage/windows/native/common/WinFileUtils.cpp

@@ -660,8 +660,10 @@ void FileWriter::finalize() {
 
 tstring stripExeSuffix(const tstring& path) {
     // for windows - there is a ".exe" suffix to remove
-    const tstring::size_type pos = path.rfind(_T(".exe"));
-    if (pos == tstring::npos) {
+    // allow for ".*" (last dot beyond the last slash)
+    const tstring::size_type pos = path.rfind(_T("."));
+    const tstring::size_type spos = path.rfind(_T("\\/"));
+    if (pos == tstring::npos || (spos > pos && spos != tstring::npos)) {
         return path;
     }
     return path.substr(0, pos);

test/jdk/tools/jpackage/windows/WinRenameTest.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2021, 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.
+ */
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.nio.file.Files;
+import jdk.jpackage.test.HelloApp;
+import jdk.jpackage.test.TKit;
+import jdk.jpackage.test.Functional.ThrowingConsumer;
+import jdk.jpackage.test.JPackageCommand;
+import jdk.jpackage.test.Annotations.Test;
+
+/*
+ * @test
+ * @summary jpackage test app can run after changing executable's extension
+ * @library ../helpers
+ * @key jpackagePlatformPackage
+ * @build jdk.jpackage.test.*
+ * @build WinRenameTest
+ * @requires (os.family == "windows")
+ * @modules jdk.jpackage/jdk.jpackage.internal
+ * @run main/othervm/timeout=360 -Xmx512m jdk.jpackage.test.Main
+ *  --jpt-run=WinRenameTest
+ */
+public class WinRenameTest {
+
+    @Test
+    public static void test() throws IOException {
+        String javaAppDesc = "com.hello/com.hello.Hello";
+        JPackageCommand cmd = JPackageCommand.helloAppImage(javaAppDesc);
+
+        cmd.executeAndAssertImageCreated();
+
+        Path launcherPath = cmd.appLauncherPath();
+        HelloApp.assertApp(launcherPath).executeAndVerifyOutput();
+
+        String lp = launcherPath.toString();
+        TKit.assertTrue(lp.endsWith(".exe"), "UNexpected launcher path: " + lp);
+
+        Path newLauncherPath = Path.of(lp.replaceAll(".exe", ".anything"));
+        Files.move(launcherPath, newLauncherPath);
+
+        HelloApp.assertApp(newLauncherPath).executeAndVerifyOutput();
+    }
+}