Add a test for the encoding issue

Author: jerboaa

test/jdk/tools/jlink/plugins/ReleaseInfoPluginTest.java

@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2025, IBM Corporation. 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 jdk.test.lib.process.*;
+import jdk.test.lib.Asserts;
+
+import java.io.InputStreamReader;
+import java.io.FileInputStream;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Path;
+import java.nio.file.Files;
+import java.util.Properties;
+
+import jdk.tools.jlink.internal.LinkableRuntimeImage;
+
+import tests.Helper;
+
+/* @test
+ * @bug 8372155
+ * @summary Test the --release-info <file> plugin option
+ * @library ../../lib
+ * @library /test/lib
+ * @modules jdk.jlink/jdk.tools.jlink.internal
+ *          jdk.jlink/jdk.tools.jimage
+ *          java.base/jdk.internal.jimage
+ * @build tests.*
+ * @run main/othervm ReleaseInfoPluginTest
+ */
+
+public class ReleaseInfoPluginTest {
+
+    private static final String NON_ASCII = "ößäakl vendor oy";
+    private static final String IMPL = "IMPLEMENTOR";
+    private static final boolean LINKABLE_RUNTIME = LinkableRuntimeImage.isLinkableRuntime();
+
+    public static void main(String[] args) throws Throwable {
+
+        Helper helper = Helper.newHelper(LINKABLE_RUNTIME);
+        if (helper == null) {
+            System.err.println("Test not run");
+            return;
+        }
+        var utf8File = Path.of("release-info-utf-8.txt");
+        Files.writeString(utf8File, IMPL + "=\"" + NON_ASCII + "\"", StandardCharsets.UTF_8);
+        var image = helper.generateDefaultImage(
+                             new String[] {
+                               "--release-info", utf8File.toString()
+                             }, "java.base").assertSuccess();
+
+        // release file produced should have IMPLEMENTOR in an
+        // appropriate encoding
+        var release = image.resolve("release");
+        Properties props = new Properties();
+        try (InputStreamReader isr = new InputStreamReader(new FileInputStream(release.toFile()), "UTF-8")) {
+            props.load(isr);
+        }
+        String noQuotesMods = ((String)props.get("MODULES")).replace("\"", "");
+        Asserts.assertEquals("java.base", noQuotesMods);
+        String noQuotesActual = ((String)props.get(IMPL)).replace("\"", "");
+        Asserts.assertEquals(NON_ASCII, noQuotesActual);
+    }
+
+}