/*

 * Copyright (c) 2011, 2014, 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.

 *

 * 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 7026509

 * @summary Cannot use JavaCompiler to create multiple CompilationTasks for partial compilations

 */

import java.io.*;

import java.util.*;

import javax.tools.*;

import javax.tools.JavaCompiler.CompilationTask;

import com.sun.source.util.*;

public class TestJavacTask_Lock {

    public static void main(String... args) throws Exception {

        new TestJavacTask_Lock().run();

    }

    enum MethodKind {

        CALL {

            int test(CompilationTask t) {

                boolean ok = t.call();

                if (!ok)

                    throw new Error("compilation failed");

                return 1;

            }

        },

        PARSE {

            int test(CompilationTask t) {

                try {

                    ((JavacTask) t).parse();

                    return 1;

                } catch (IOException ex) {

                    throw new Error(ex);

                }

            }

        };

        abstract int test(CompilationTask t);

    }

    JavaCompiler comp;

    StandardJavaFileManager fm;

    void run() throws Exception {

        comp = ToolProvider.getSystemJavaCompiler();

        fm = comp.getStandardFileManager(null, null, null);

        try {

            for (MethodKind first: MethodKind.values()) {

                for (MethodKind second: MethodKind.values()) {

                    test(first, second);

                }

            }

            if (errors > 0)

                throw new Exception(errors + " errors found");

        } finally {

            fm.close();

        }

    }

    void test(MethodKind first, MethodKind second) {

        System.err.println("test: " + first + ", " + second);

        File testSrc = new File(System.getProperty("test.src"));

        String thisClassName = TestJavacTask_Lock.class.getName();

        Iterable<? extends JavaFileObject> files =

                fm.getJavaFileObjects(new File(testSrc, thisClassName + ".java"));

        File tmpDir = new File(first + "_" + second);

        tmpDir.mkdirs();

        List<String> options = Arrays.asList( "-d", tmpDir.getPath() );

        CompilationTask t = comp.getTask(null, fm, null, options, null, files);

        try {

            first.test(t);

            second.test(t);

            error("No exception thrown");

        } catch (IllegalStateException e) {

            e.printStackTrace();

            System.err.println("Expected exception caught: " + e);

        } catch (Exception e) {

            error("Unexpected exception caught: " + e);

            e.printStackTrace(System.err);

        }

    }

    void error(String msg) {

        System.err.println("Error: " + msg);

        errors++;

    }

    int errors;

}