8369032: Add test to ensure serialized ICC_Profile stores only necessary optional data

test/jdk/java/awt/color/ICC_Profile/SerializedFormSize.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright Amazon.com Inc. 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.awt.color.ColorSpace;
+import java.awt.color.ICC_Profile;
+import java.io.ByteArrayOutputStream;
+import java.io.ObjectOutputStream;
+
+/**
+ * @test
+ * @bug 8369032
+ * @summary Checks the size of the serialized ICC_Profile for standard and
+ *          non-standard profiles.
+ */
+public final class SerializedFormSize {
+
+    private static final ICC_Profile[] PROFILES = {
+            ICC_Profile.getInstance(ColorSpace.CS_sRGB),
+            ICC_Profile.getInstance(ColorSpace.CS_LINEAR_RGB),
+            ICC_Profile.getInstance(ColorSpace.CS_CIEXYZ),
+            ICC_Profile.getInstance(ColorSpace.CS_PYCC),
+            ICC_Profile.getInstance(ColorSpace.CS_GRAY)
+    };
+
+    public static void main(String[] args) throws Exception {
+        for (ICC_Profile profile : PROFILES) {
+            byte[] data = profile.getData();
+            int dataSize = data.length;
+            int min = 3; // At least version, name and data fields
+            int max = 200; // Small enough to confirm no data saved
+
+            // Standard profile: should serialize to a small size, no data
+            test(profile, min, max);
+            // Non-standard profile: includes full data, but only once
+            test(ICC_Profile.getInstance(data), dataSize, dataSize + max);
+        }
+    }
+
+    private static void test(ICC_Profile p, int min, int max) throws Exception {
+        try (var bos = new ByteArrayOutputStream();
+             var oos = new ObjectOutputStream(bos))
+        {
+            oos.writeObject(p);
+            int size = bos.size();
+            if (size < min || size > max) {
+                System.err.println("Expected: >= " + min + " and <= " + max);
+                System.err.println("Actual: " + size);
+                throw new RuntimeException("Wrong size");
+            }
+        }
+    }
+}