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Java example source code file (Test7029048.java)

This example Java source code file (Test7029048.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

case, exception, fail, file, ld_library_path, libjvm, list, llp_set_empty_path, llp_set_non_existent_path, llp_set_with_jvm, llp_var, runtimeexception, string, test7029048, util

The Test7029048.java Java example source code

/*
 * Copyright (c) 2011, 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 7029048
 * @summary Checks for LD_LIBRARY_PATH on *nixes
 * @compile -XDignore.symbol.file ExecutionEnvironment.java Test7029048.java
 * @run main Test7029048
 */

/*
 * 7029048: test for LD_LIBRARY_PATH set to different paths which may or
 * may not contain a libjvm.so, but we test to ensure that the launcher
 * behaves correctly in all cases.
 */
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class Test7029048 extends TestHelper {

    static int passes = 0;
    static int errors = 0;

    private static final String LIBJVM = ExecutionEnvironment.LIBJVM;
    private static final String LD_LIBRARY_PATH =
            ExecutionEnvironment.LD_LIBRARY_PATH;
    private static final String LD_LIBRARY_PATH_64 =
            ExecutionEnvironment.LD_LIBRARY_PATH_64;

    private static final File libDir =
            new File(System.getProperty("sun.boot.library.path"));
    private static final File srcServerDir = new File(libDir, "server");
    private static final File srcLibjvmSo = new File(srcServerDir, LIBJVM);

    private static final File dstLibDir = new File("lib");
    private static final File dstLibArchDir =
            new File(dstLibDir, getJreArch());

    private static final File dstServerDir = new File(dstLibArchDir, "server");
    private static final File dstServerLibjvm = new File(dstServerDir, LIBJVM);

    private static final File dstClientDir = new File(dstLibArchDir, "client");
    private static final File dstClientLibjvm = new File(dstClientDir, LIBJVM);

    private static final Map<String, String> env = new HashMap<>();


    static String getValue(String name, List<String> in) {
        for (String x : in) {
            String[] s = x.split("=");
            if (name.equals(s[0].trim())) {
                return s[1].trim();
            }
        }
        return null;
    }

    static void run(Map<String, String> env,
            int nLLPComponents, String caseID) {
        env.put(ExecutionEnvironment.JLDEBUG_KEY, "true");
        List<String> cmdsList = new ArrayList<>();
        cmdsList.add(javaCmd);
        cmdsList.add("-server");
        cmdsList.add("-jar");
        cmdsList.add(ExecutionEnvironment.testJarFile.getAbsolutePath());
        String[] cmds = new String[cmdsList.size()];
        TestResult tr = doExec(env, cmdsList.toArray(cmds));
        System.out.println(tr);
        analyze(tr, nLLPComponents, caseID);
    }

    static void analyze(TestResult tr, int nLLPComponents, String caseID) {
        String envValue = getValue(LD_LIBRARY_PATH, tr.testOutput);
       /*
        * the envValue can never be null, since the test code should always
        * print a "null" string.
        */
        if (envValue == null) {
            System.out.println(tr);
            throw new RuntimeException("NPE, likely a program crash ??");
        }
        String values[] = envValue.split(File.pathSeparator);
        if (values.length == nLLPComponents) {
            System.out.println(caseID + " :OK");
            passes++;
        } else {
            System.out.println("FAIL: test7029048, " + caseID);
            System.out.println(" expected " + nLLPComponents
                    + " but got " + values.length);
            System.out.println(envValue);
            System.out.println(tr);
            errors++;
        }
    }

    /*
     * A crucial piece, specifies what we should expect, given the conditions.
     * That is for a given enum type, the value indicates how many absolute
     * environment variables that can be expected. This value is used to base
     * the actual expected values by adding the set environment variable usually
     * it is 1, but it could be more if the test wishes to set more paths in
     * the future.
     */
    private static enum LLP_VAR {
        LLP_SET_NON_EXISTENT_PATH(0),   // env set, but the path does not exist
        LLP_SET_EMPTY_PATH(0),          // env set, with a path but no libjvm.so
        LLP_SET_WITH_JVM(3);            // env set, with a libjvm.so
        private final int value;
        LLP_VAR(int i) {
            this.value = i;
        }
    }

    /*
     * test for 7029048
     */
    static void test7029048() throws IOException {
        String desc = null;
        for (LLP_VAR v : LLP_VAR.values()) {
            switch (v) {
                case LLP_SET_WITH_JVM:
                    // copy the files into the directory structures
                    copyFile(srcLibjvmSo, dstServerLibjvm);
                    // does not matter if it is client or a server
                    copyFile(srcLibjvmSo, dstClientLibjvm);
                    desc = "LD_LIBRARY_PATH should be set";
                    break;
                case LLP_SET_EMPTY_PATH:
                    if (!dstClientDir.exists()) {
                        Files.createDirectories(dstClientDir.toPath());
                    } else {
                        Files.deleteIfExists(dstClientLibjvm.toPath());
                    }

                    if (!dstServerDir.exists()) {
                        Files.createDirectories(dstServerDir.toPath());
                    } else {
                        Files.deleteIfExists(dstServerLibjvm.toPath());
                    }

                    desc = "LD_LIBRARY_PATH should not be set";
                    break;
                case LLP_SET_NON_EXISTENT_PATH:
                    if (dstLibDir.exists()) {
                        recursiveDelete(dstLibDir);
                    }
                    desc = "LD_LIBRARY_PATH should not be set";
                    break;
                default:
                    throw new RuntimeException("unknown case");
            }

            /*
             * Case 1: set the server path
             */
            env.clear();
            env.put(LD_LIBRARY_PATH, dstServerDir.getAbsolutePath());
            run(env, v.value + 1, "Case 1: " + desc);

            /*
             * Case 2: repeat with client path
             */
            env.clear();
            env.put(LD_LIBRARY_PATH, dstClientDir.getAbsolutePath());
            run(env, v.value + 1, "Case 2: " + desc);

            if (isSolaris) {
                /*
                 * Case 3: set the appropriate LLP_XX flag,
                 * java64 -d64, LLP_64 is relevant, LLP_32 is ignored
                 */
                env.clear();
                env.put(LD_LIBRARY_PATH_64, dstServerDir.getAbsolutePath());
                run(env, v.value + 1, "Case 3: " + desc);
            }
        }
        return;
    }

    public static void main(String... args) throws Exception {
        if (TestHelper.isWindows || TestHelper.isMacOSX) {
            System.out.println("Note: applicable on neither Windows nor MacOSX");
            return;
        }
        if (!TestHelper.haveServerVM) {
            System.out.println("Note: test relies on server vm, not found, exiting");
            return;
        }
        // create our test jar first
        ExecutionEnvironment.createTestJar();

        // run the tests
        test7029048();
        if (errors > 0) {
            throw new Exception("Test7029048: FAIL: with "
                    + errors + " errors and passes " + passes);
        } else if (isSolaris && passes < 9) {
            throw new Exception("Test7029048: FAIL: " +
                    "all tests did not run, expected " + 9 + " got " + passes);
        } else if (isLinux && passes < 6) {
             throw new Exception("Test7029048: FAIL: " +
                    "all tests did not run, expected " + 6 + " got " + passes);
        } else {
            System.out.println("Test7029048: PASS " + passes);
        }
    }
}

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