JBR-2210 IDEA fails to start (JVM crashes) when using the -Dfile.encoding=UTF-8in IDEA's vmoptions file

Added regression test

(cherry picked from commit 4e1f5a43b3)

with fix for JBR-5300 Change source code and test files to use GPL license

(cherry picked from commit f7cf514da2)

test/jdk/jb/java/awt/Font/JapaneseLocale/JapaneseLocaleTest.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2000-2023 JetBrains s.r.o.
+ * 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 javax.swing.*;
+import java.awt.*;
+
+/**
+ * @test
+ * @summary Regression test for JBR-2210 (JVM crashes on Windows with Japanese locale and UTF-8 enconding)
+ * @run main/othervm -Duser.language=ja -Duser.region=JP -Dfile.encoding=UTF-8 JapaneseLocaleTest
+ */
+
+/*
+ * Description:
+ * Test checks that the JVM does not crash on with Japanese locale and UTF-8 enconding by JFrame creation.
+ */
+
+public class JapaneseLocaleTest {
+    private static JFrame frame;
+    public static void main(String[] args) throws Exception{
+        try {
+            EventQueue.invokeAndWait(JapaneseLocaleTest::initFrame);
+        }
+        finally {
+            EventQueue.invokeAndWait(() ->frame.dispose());
+        }
+    }
+
+    private static void initFrame(){
+        frame = new JFrame();
+        frame.setVisible(true);
+    }
+}