T6457284.java

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/*
 * @test
 * @bug     6457284
 * @summary Internationalize "unnamed package" when the term is used in diagnostics
 * @author  Peter von der Ah\u00e9
 * @modules jdk.compiler/com.sun.tools.javac.api
 *          jdk.compiler/com.sun.tools.javac.util
 */

import java.io.IOException;
import java.net.URI;
import javax.lang.model.element.Element;

import com.sun.source.util.JavacTask;
import com.sun.tools.javac.api.JavacTool;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.List;
import com.sun.tools.javac.util.JavacMessages;

import javax.tools.*;

public class T6457284 {
    static class MyFileObject extends SimpleJavaFileObject {
        public MyFileObject() {
            super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
        }
        public CharSequence getCharContent(boolean ignoreEncodingErrors) {
            return "class Test {}";
        }
    }
    public static void main(String[] args) throws IOException {
        Context context = new Context();
        MyMessages.preRegister(context);
        JavacTool tool = JavacTool.create();
        JavacTask task = tool.getTask(null, null, null, null, null,
                                      List.of(new MyFileObject()),
                                      context);
        task.parse();
        for (Element e : task.analyze()) {
            if (!e.getEnclosingElement().toString().equals("compiler.misc.unnamed.package"))
                throw new AssertionError(e.getEnclosingElement());
            System.out.println("OK: " + e.getEnclosingElement());
            return;
        }
        throw new AssertionError("No top-level classes!");
    }

    static class MyMessages extends JavacMessages {
        static void preRegister(Context context) {
            context.put(messagesKey, new MyMessages());
        }
        MyMessages() {
            super("com.sun.tools.javac.resources.compiler");
        }
        public String getLocalizedString(String key, Object... args) {
            if (key.equals("compiler.misc.unnamed.package"))
                return key;
            else
                return super.getLocalizedString(key, args);
        }
    }
}