test/jdk/javax/naming/spi/FactoryCacheTest.java

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/*
 * @test
 * @bug 8223260
 * @summary NamingManager should cache InitialContextFactory
 * @library /test/lib /lib/testlibrary
 * @build JarUtils jdk.test.lib.process.*
 *        FactoryCacheTest
 *        DummyContextFactory
 *        DummyContextFactory2
 * @run main FactoryCacheTest
 */

import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;

import jdk.test.lib.JDKToolFinder;
import jdk.test.lib.Utils;
import jdk.test.lib.process.ProcessTools;

import static java.nio.file.StandardOpenOption.CREATE;
import static java.util.Arrays.asList;

import static jdk.test.lib.Utils.TEST_CLASSES;

public class FactoryCacheTest {

    private static final Path SPIJAR = Path.of("testDir", "ContextFactory.jar");
    private static final String SPIJAR_CP = SPIJAR.toAbsolutePath().toString();

    public static void main(String[] args) throws Throwable {
        List<String> argLine = new ArrayList<>();
        argLine.add(JDKToolFinder.getJDKTool("java"));
        argLine.addAll(asList(Utils.getTestJavaOpts()));
        argLine.addAll(List.of("-cp", TEST_CLASSES));
        argLine.addAll(List.of("-Durl.dir=" + TEST_CLASSES));
        argLine.add("DummyContextFactory");

        ProcessTools.executeCommand(argLine.stream()
                .filter(t -> !t.isEmpty())
                .toArray(String[]::new))
                .shouldHaveExitValue(0);

        // now test the ServiceLoader approach
        setupService();
        argLine = new ArrayList<>();
        argLine.add(JDKToolFinder.getJDKTool("java"));
        argLine.addAll(asList(Utils.getTestJavaOpts()));
        argLine.addAll(List.of("-cp", SPIJAR_CP));
        argLine.addAll(List.of("-Durl.dir=" + TEST_CLASSES));
        argLine.add("DummyContextFactory");

        ProcessTools.executeCommand(argLine.stream()
                .filter(t -> !t.isEmpty())
                .toArray(String[]::new))
                .shouldHaveExitValue(0);
    }

    private static void setupService() throws Exception {
        Path xdir = Path.of(TEST_CLASSES);
        Path config = xdir.resolve(Path.of(TEST_CLASSES,"META-INF/services/javax.naming.spi.InitialContextFactory"));
        Files.createDirectories(config.getParent());
        Files.write(config, "DummyContextFactory".getBytes(), CREATE);
        JarUtils.createJarFile(SPIJAR, xdir);
    }
}