/*

 * 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 8011383

 * @summary Symbol.getModifiers omits ACC_ABSTRACT from interface with default methods

 */

import java.io.File;

import java.io.IOException;

import java.util.Arrays;

import javax.lang.model.element.*;

import javax.tools.JavaCompiler;

import javax.tools.JavaFileObject;

import javax.tools.StandardJavaFileManager;

import javax.tools.ToolProvider;

import com.sun.source.util.JavacTask;

import com.sun.source.util.TaskEvent;

import com.sun.source.util.TaskListener;

import com.sun.tools.javac.util.Assert;

public class DefaultMethodFlags {

    public static void main(String[] args) throws IOException {

        new DefaultMethodFlags().run(args);

    }

    void run(String[] args) throws IOException {

        checkDefaultMethodFlags();

    }

    void checkDefaultMethodFlags() throws IOException {

        JavaCompiler c = ToolProvider.getSystemJavaCompiler();

        try (StandardJavaFileManager fm = c.getStandardFileManager(null, null, null)) {

            Iterable<? extends JavaFileObject> fos =

                    fm.getJavaFileObjectsFromFiles(

                    Arrays.asList(new File(

                    System.getProperty("test.src"),

                    this.getClass().getSimpleName() + ".java")));

            JavacTask task = (JavacTask) c.getTask(null, fm, null, null, null, fos);

            task.addTaskListener(new TaskListener() {

                @Override

                public void started(TaskEvent e) {}

                @Override

                public void finished(TaskEvent e) {

                    if (e.getKind() == TaskEvent.Kind.ANALYZE) {

                        TypeElement te = e.getTypeElement();

                        if (te.getSimpleName().toString().equals("I")) {

                            checkDefaultInterface(te);

                        }

                    }

                }

            });

            task.analyze();

        }

    }

    void checkDefaultInterface(TypeElement te) {

        System.err.println("Checking " + te.getSimpleName());

        Assert.check(te.getModifiers().contains(Modifier.ABSTRACT));

        for (Element e : te.getEnclosedElements()) {

            if (e.getSimpleName().toString().matches("(\\w)_(default|static|abstract)")) {

                boolean abstractExpected = false;

                String methodKind = e.getSimpleName().toString().substring(2);

                switch (methodKind) {

                    case "default":

                    case "static":

                        break;

                    case "abstract":

                        abstractExpected = true;

                        break;

                    default:

                        Assert.error("Cannot get here!" + methodKind);

                }

                Assert.check(e.getModifiers().contains(Modifier.ABSTRACT) == abstractExpected);

            }

        }

    }

}

interface I {

    default void m_default() { }

    static void m_static() { }

    void m_abstract();

}