SysPropTest.java

/*******************************************************************************
 * Copyright (c) 2001, 2022 IBM Corp. and others
 *
 * This program and the accompanying materials are made available under
 * the terms of the Eclipse Public License 2.0 which accompanies this
 * distribution and is available at https://www.eclipse.org/legal/epl-2.0/
 * or the Apache License, Version 2.0 which accompanies this distribution and
 * is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * This Source Code may also be made available under the following
 * Secondary Licenses when the conditions for such availability set
 * forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
 * General Public License, version 2 with the GNU Classpath
 * Exception [1] and GNU General Public License, version 2 with the
 * OpenJDK Assembly Exception [2].
 *
 * [1] https://www.gnu.org/software/classpath/license.html
 * [2] http://openjdk.java.net/legal/assembly-exception.html
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
 *******************************************************************************/

import java.util.*;
import java.io.*;
import java.nio.charset.Charset;
import org.openj9.test.util.VersionCheck;

public class SysPropTest
{
	/* TestVa»lue¡ */
	static final byte[] inputBytes = { (byte)'T', (byte)'e', (byte)'s', (byte)'t', (byte)'V', (byte)'a', (byte)187, (byte)'l', (byte)'u', (byte)'e', (byte)161};
	static final byte[] inputBytesUtf8 = { (byte)'T', (byte)'e', (byte)'s', (byte)'t', (byte)'V', (byte)'a', (byte)0xC2, (byte)187, (byte)'l', (byte)'u', (byte)'e', (byte)0xC2, (byte)161};

	public static void main(String args[])
	{
		boolean isWindows = false;
		if (args.length == 0) {
			System.out.println("test failed");
			return;
		}
		String argEncoding = args[0];
		/* check -Dtestkey=TestVa?lue? */
		try {
			String osEncoding = "";
			String strTestProp;
			if (System.getProperty("os.name").contains("Windows")) {
				isWindows = true;
			}

			/* On jdk18+ with JEP 400 UTF-8 by default, the non-ascii characters in the testkey property
			 * are converted to UTF8 by the test (not the JVM).
			 */
			final byte[] expectedBytes = ((VersionCheck.major() >= 18) && !isWindows) ? inputBytesUtf8 : inputBytes;

			if (argEncoding.equals("DEFAULT")) {
				osEncoding = System.getProperty("os.encoding");
			}

			/* Windows converts from the platform default to UTF8 internally to the VM and
			 * sets os.encoding to UTF8. To replicate this behavior, on Windows use the default encoding
			 * and not the os.encoding.
			 */
			if (osEncoding != null && osEncoding.length() != 0 && isWindows == false) {
				strTestProp = new String(expectedBytes, osEncoding);
			} else {
				if ((argEncoding.equals("UTF-8") || argEncoding.equals("ISO-8859-1"))) {
					strTestProp = new String(expectedBytes, argEncoding);
				} else {
					strTestProp = new String(expectedBytes, System.getProperty("native.encoding", Charset.defaultCharset().name()));
				}
			}

			String strProp = System.getProperty("testkey");
			if (strProp == null || strTestProp.compareTo(strProp) != 0) {
				System.out.println("test failed");
				System.out.println("os.encoding: " + System.getProperty("os.encoding"));
				System.out.println("native.encoding: " + System.getProperty("native.encoding"));
				System.out.println("defaultCharset(): " + Charset.defaultCharset().name());
				System.out.println("file.encoding: " + System.getProperty("file.encoding"));
				System.out.print("strProp    : ");
				for (int i = 0; i < strProp.length(); i++) {
					System.out.print(Integer.toHexString(strProp.charAt(i)) + " ");
				}
				System.out.println();
				System.out.print("strTestProp: ");
				for (int i = 0; i < strTestProp.length(); i++) {
					System.out.print(Integer.toHexString(strTestProp.charAt(i)) + " ");
				}
				System.out.println();

			} else {
				System.out.println("test succeeded");
			}
		} catch (UnsupportedEncodingException e) {
			System.out.println("test failed");
			e.printStackTrace();
		}
	}
}