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 * 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 7022337

 * @summary repeated warnings about bootclasspath not set

 * @library /tools/javac/lib

 * @modules jdk.compiler

 * @build JavacTestingAbstractProcessor T7022337

 * @run main T7022337

 */

import java.io.*;

import java.util.*;

import javax.annotation.processing.*;

import javax.lang.model.element.*;

import javax.tools.*;

public class T7022337 extends JavacTestingAbstractProcessor {

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

        new T7022337().run();

    }

    void run() throws Exception {

        String myName = T7022337.class.getSimpleName();

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

        File file = new File(testSrc, myName + ".java");

        String out = compile(

            "-XDrawDiagnostics",

            "-d", ".",

            "-processor", myName,

            "-source", "8", // explicit use of older source value without bootclasspath

            file.getPath());

        int count = 0;

        for (String line: out.split("[\r\n]+")) {

            if (line.contains("compiler.warn.source.no.bootclasspath"))

                count++;

        }

        if (count != 1)

            throw new Exception("unexpected number of warnings found: " + count + ", expected: 1");

    }

    String compile(String... args) throws Exception {

        StringWriter sw = new StringWriter();

        PrintWriter pw = new PrintWriter(sw);

        int rc = com.sun.tools.javac.Main.compile(args, pw);

        pw.close();

        String out = sw.toString();

        if (!out.isEmpty())

            System.err.println(out);

        if (rc != 0)

            throw new Exception("compilation failed unexpectedly: rc=" + rc);

        return out;

    }

    // ----------

    int round = 0;

    @Override

    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {

        round++;

        final int MAXROUNDS = 3;

        if (round < MAXROUNDS)

            generate("Gen" + round);

        return true;

    }

    void generate(String name) {

        try {

            JavaFileObject fo = filer.createSourceFile(name);

            Writer out = fo.openWriter();

            try {

                out.write("class " + name + " { }");

            } finally {

                out.close();

            }

        } catch (IOException e) {

            throw new Error(e);

        }

    }

}