test/jdk/tools/jlink/plugins/ExcludeModuleInfoTest.java

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/*
 * @test
 * @bug 8194922
 * @summary jlink --exclude-resources should never exclude module-info.class
 * @modules jdk.jlink/jdk.tools.jlink.internal
 *          jdk.jlink/jdk.tools.jlink.internal.plugins
 *          jdk.jlink/jdk.tools.jlink.plugin
 * @run main ExcludeModuleInfoTest
 */

import java.io.File;
import java.nio.file.Files;
import java.util.HashMap;
import java.util.Map;
import jdk.tools.jlink.internal.ResourcePoolManager;

import jdk.tools.jlink.internal.plugins.ExcludePlugin;
import jdk.tools.jlink.plugin.PluginException;
import jdk.tools.jlink.plugin.ResourcePool;
import jdk.tools.jlink.plugin.ResourcePoolBuilder;
import jdk.tools.jlink.plugin.ResourcePoolEntry;

public class ExcludeModuleInfoTest {

    public static void main(String[] args) throws Exception {
        new ExcludeModuleInfoTest().test();
    }

    public void test() throws Exception {
        check("**.class", "/mymodule/module-info.class");
        check("/java.base/module-info.class", "/java.base/module-info.class");
    }

    public void check(String s, String sample) throws Exception {
        Map<String, String> prop = new HashMap<>();
        prop.put(ExcludePlugin.NAME, s);
        ExcludePlugin excludePlugin = new ExcludePlugin();
        excludePlugin.configure(prop);
        ResourcePoolManager resourcesMgr = new ResourcePoolManager();
        ResourcePoolEntry resource = ResourcePoolEntry.create(sample, new byte[0]);
        resourcesMgr.add(resource);
        ResourcePoolManager resultMgr = new ResourcePoolManager();
        try {
            excludePlugin.transform(resourcesMgr.resourcePool(),
                resultMgr.resourcePoolBuilder());
            throw new AssertionError(sample + " exclusion should have resulted in exception");
        } catch (PluginException pe) {
            System.err.println("Got exception as expected: " + pe);
            pe.printStackTrace();
        }
    }
}