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Java example source code file (I18NJarTest.java)

This example Java source code file (I18NJarTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

failed, file, i18njartest, lang, lc_all, locale, ms932, runtimeexception, string, test, testhelper, testresult, this, utf\-8, util

The I18NJarTest.java Java example source code

/*
 * Copyright (c) 2012, 2013, 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.
 */

/*
 * @test
 * @bug 7125442
 * @summary ensures a jar path as well as a class located in a path containing
 *          unicode characters are launched.
 * @compile -XDignore.symbol.file I18NJarTest.java
 * @run main/othervm I18NJarTest
 */
import java.io.File;
import java.util.Locale;

/*
 * Note 1: the system must have the correct Locale, in order for the test to
 * work correctly, on those systems that do not comply, the test will succeed.
 * Here are some guidelines to set the locale correctly.
 * On Windows: ControlPanel->Regional Settings,
 *             ensure that "Japanese" is selected and checked, and in
 *             "Code page conversion tables", the following must be checked,
 *             932 (ANSI/OEM - Japanese Shift-JIS).
 * On Unix: use "locale -a" verify one of these exist ja_JP.UTF-8 or
 *          ja_JP.utf8 or ja_JP.ujis, and export one of them with LC_ALL.
 *
 *
 * Note 2: since we need to set the locale, it is safest to execute this test
 * in its own VM (othervm mode), such that the ensuing tests can run unperturbed,
 * regardless of the outcome.
 */
public class I18NJarTest extends TestHelper {
    private static final File cwd = new File(".");
    private static final File dir = new File("\uFF66\uFF67\uFF68\uFF69");
    private static final String encoding = System.getProperty("sun.jnu.encoding", "");
    private static final String LANG = System.getenv("LANG");
    private static final String LC_ALL = System.getenv("LC_ALL");

    public static void main(String... args) throws Exception {
        boolean localeAvailable = false;
        for (Locale l : Locale.getAvailableLocales()) {
            if (l.toLanguageTag().equals(Locale.JAPAN.toLanguageTag())) {
                localeAvailable = true;
                break;
            }
        }
        if (!localeAvailable) {
            System.out.println("Warning: locale: " + Locale.JAPAN
                    + " not found, test passes vacuously");
            return;
        }
        if ("C".equals(LC_ALL) || "C".equals(LANG)) {
            System.out.println("Warning: The LANG and/or LC_ALL env vars are " +
              "set to \"C\":\n" +
              "  LANG=" + LANG + "\n" +
              "  LC_ALL=" + LC_ALL + "\n" +
              "This test requires support for multi-byte filenames.\n" +
              "Test passes vacuously.");
            return;
        }
        if (encoding.equals("MS932") || encoding.equals("UTF-8")) {
            Locale.setDefault(Locale.JAPAN);
            System.out.println("using locale " + Locale.JAPAN +
                    ", encoding " + encoding);
        } else {
            System.out.println("Warning: current encoding is " + encoding +
                    "this test requires MS932 <Ja> or UTF-8," +
                    " test passes vacuously");
            return;
        }
        dir.mkdir();
        File dirfile = new File(dir, "foo.jar");
        createJar(dirfile,
                "public static void main(String... args) {",
                "System.out.println(\"Hello World\");",
                "System.exit(0);",
                "}");

        // remove the class files, to ensure that the class is indeed picked up
        // from the jar file and not from ambient classpath.
        File[] classFiles = cwd.listFiles(createFilter(CLASS_FILE_EXT));
        for (File f : classFiles) {
            f.delete();
        }

        // test with a jar file
        TestResult tr = doExec(javaCmd, "-jar", dirfile.getAbsolutePath());
        System.out.println(tr);
        if (!tr.isOK()) {
            throw new RuntimeException("TEST FAILED");
        }

        // test the same class but by specifying it as a classpath
        tr = doExec(javaCmd, "-cp", dirfile.getAbsolutePath(), "Foo");
        System.out.println(tr);
        if (!tr.isOK()) {
            throw new RuntimeException("TEST FAILED");
        }
    }
}

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