/*

 * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.

 * 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.

 *

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 */

/*

 * @test

 * @bug 6900149

 * @summary IllegalStateException when compiling same files and DiagnosticListener is set

 * @modules java.compiler

 *          jdk.compiler

 */

import java.io.*;

import java.util.*;

import javax.tools.*;

import javax.tools.JavaCompiler.CompilationTask;

public class T6900149 {

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

        DiagnosticCollector<JavaFileObject> diag =

                new DiagnosticCollector<JavaFileObject>();

        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

        try (StandardJavaFileManager fm =

                compiler.getStandardFileManager(null, null, null)) {

            File emptyFile = createTempFile("Empty.java");

            File[] files = new File[] { emptyFile, emptyFile };

            CompilationTask task = compiler.getTask(null, fm, diag,

                    null, null, fm.getJavaFileObjects(files));

            if (! task.call()) {

                throw new AssertionError("compilation failed");

            }

        }

    }

    private static File createTempFile(String path) throws IOException {

        File f = new File(path);

        try (FileWriter out = new FileWriter(f)) { }

        return f;

    }

}