/*

 * Copyright (c) 2008, 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.

 *

 * 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 6972327

 * @summary JCTree.pos incorrect for annotations without modifiers and package

 * @modules jdk.compiler/com.sun.tools.javac.api

 */

import com.sun.source.tree.*;

import com.sun.source.util.Trees;

import com.sun.tools.javac.api.*;

import java.net.URI;

import java.util.Arrays;

import javax.tools.*;

public class T6972327 {

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

        final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();

        assert tool != null;

        String code = "\n@interface Test {}";

        JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, null, null,

            Arrays.asList("-Xjcov"), null, Arrays.asList(new MyFileObject(code)));

        CompilationUnitTree cut = ct.parse().iterator().next();

        ClassTree clazz = (ClassTree) cut.getTypeDecls().get(0);

        Trees t = Trees.instance(ct);

        long pos = t.getSourcePositions().getStartPosition(cut, clazz);

        if (pos != code.indexOf(code.trim()))

            throw new IllegalStateException("Unexpected position=" + pos);

    }

    static class MyFileObject extends SimpleJavaFileObject {

        private String text;

        public MyFileObject(String text) {

            super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);

            this.text = text;

        }

        @Override

        public CharSequence getCharContent(boolean ignoreEncodingErrors) {

            return text;

        }

    }

}