test/hotspot/jtreg/runtime/appcds/CaseSensitiveClassPath.java

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/*
 * @test
 * @summary Test case sensitive aspect of comparing class paths
 *     between dump time and archive use time
 * @requires vm.cds
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 *          java.management
 *          jdk.jartool/sun.tools.jar
 * @requires os.family != "mac"
 * @compile test-classes/Hello.java
 * @run main CaseSensitiveClassPath
 */

import java.nio.file.FileAlreadyExistsException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;
import jdk.test.lib.Platform;
import jdk.test.lib.process.OutputAnalyzer;


// Excluded from running on MAC: a more comprehensive case sensitivity detection
// and fix mechanism is needed, which is planned to be implemented in the future.
public class CaseSensitiveClassPath {
    public static void main(String[] args) throws Exception {
        String appJar = JarBuilder.getOrCreateHelloJar();
        String appJarUpper = appJar.replace("hello", "Hello");

        OutputAnalyzer out = TestCommon.dump(appJar, TestCommon.list("Hello"));
        TestCommon.checkDump(out);

        Path jarPath = Paths.get(appJar);
        Path jarPathUpper = null;

        boolean fileExists = false;
        try {
            jarPathUpper = Files.createFile(Paths.get(appJarUpper));
        } catch (FileAlreadyExistsException faee) {
            fileExists = true;
        }

        if (!fileExists) {
            try {
                Files.copy(jarPath, jarPathUpper, StandardCopyOption.REPLACE_EXISTING);
            } catch (Exception e) {
                throw new java.lang.RuntimeException(
                    "Failed copying file from " + appJar + " to " + appJarUpper + ".", e);
            }
        } else {
            jarPathUpper = Paths.get(appJarUpper);
        }
        boolean isSameFile = Files.isSameFile(jarPath, jarPathUpper);

        TestCommon.run("-cp", appJarUpper, "Hello", "-Xlog:class+path=info",
                       "-Xlog:cds")
            .ifNoMappingFailure(output -> {
                    if (isSameFile) {
                        output.shouldContain("Hello World");
                    } else {
                        output.shouldContain("shared class paths mismatch");
                        output.shouldHaveExitValue(1);
                    }
                });
    }
}