/*

 * Copyright (c) 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 8071847

 * @summary Verify proper termination when instance initialization method uses invalid flags

 * @compile  T8071847.java

 * @run main T8071847

*/

import java.io.*;

import java.util.*;

public class T8071847 {

    String testclass="invalidFlags.class";

    String testclassHexString =

    "CAFEBABE00000031000D0A0003000A07000B07000C0100063C696E69743E0100" +

    "03282956010004436F646501000F4C696E654E756D6265725461626C6501000A" +

    "536F7572636546696C65010009546573742E6A6176610C0004000501000C696E" +

    "76616C6964466C6167730100106A6176612F6C616E672F4F626A656374002000" +

    "02000300000000000100A000040005000100060000001D00010001000000052A" +

    "B70001B10000000100070000000600010000000100010008000000020009";

    String testJavaFile = "testInvalidFlags.java";

    String testJavaSource ="public class testInvalidFlags extends invalidFlags {" +

        "invalidFlags c = null;" +

        "public testInvalidFlags() {  c = new invalidFlags(); }" +

        "public static void main(String... args) { " +

        "new testInvalidFlags();}}";

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

        new  T8071847().run();

    }

    public void run() throws IOException {

        writeHexFile(testclass,testclassHexString);

        writeTestFile(testJavaFile, testJavaSource);

        javac(testJavaFile);

    }

    File writeTestFile(String fname, String source) throws IOException {

        File f = new File(fname);

        PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));

        out.println(source);

        out.close();

        return f;

    }

    byte[] hexToByte(String str) {

        char[] CA = str.toCharArray();

        byte[] byteArry = new byte[str.length()/2];

        int bi = 0;

        for (int i = 0; i<CA.length ; i+=2) {

            char c1 = CA[i], c2=CA[i+1];

            byteArry[bi++] = (byte)((Character.digit((int)c1,16)<<4) +

                             Character.digit((int)c2,16));

        }

        return byteArry;

    }

    File writeHexFile(String classFileName, String hexString) throws IOException {

        File f = new File(classFileName);

        FileOutputStream output  = new FileOutputStream(f);

        output.write(hexToByte(hexString));

        output.close();

        return f;

    }

    String javac(String className) {

        StringWriter sw = new StringWriter();

        PrintWriter out = new PrintWriter(sw);

        int rc = 0;

        List<String> javacArgs = new ArrayList<>();

        javacArgs.addAll(Arrays.asList("-XDrawDiagnostics", "-cp", ".", "-d", ".", className));

        rc = com.sun.tools.javac.Main.compile(

            javacArgs.toArray(new String[javacArgs.size()]),out);

        out.close();

        if (rc > 1) {

            System.out.println(sw.toString());

            throw new Error("javac " + className + " failed. rc=" + rc);

        }

        if (rc != 1 || !sw.toString().contains("compiler.misc.malformed.vararg.method"))

            throw new RuntimeException("Unexpected output" + sw.toString());

        return sw.toString();

    }

}