/*

 * Copyright (c) 2013, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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 8005931

 * @summary javac doesn't set ACC_STRICT for classes with package access

 * @run main CheckACC_STRICTFlagOnPkgAccessClassTest

 */

import java.io.File;

import java.io.IOException;

import java.net.URI;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

import javax.tools.JavaCompiler;

import javax.tools.JavaFileObject;

import javax.tools.SimpleJavaFileObject;

import javax.tools.ToolProvider;

import com.sun.source.util.JavacTask;

import com.sun.tools.classfile.ClassFile;

import com.sun.tools.classfile.ConstantPoolException;

import com.sun.tools.classfile.Descriptor;

import com.sun.tools.classfile.Descriptor.InvalidDescriptor;

import com.sun.tools.classfile.Method;

import static com.sun.tools.classfile.AccessFlags.ACC_STRICT;

public class CheckACC_STRICTFlagOnPkgAccessClassTest {

    private static final String AssertionErrorMessage =

        "All methods should have the ACC_STRICT access flag " +

        "please check output";

    private static final String CompilationErrorMessage =

        "Error thrown when compiling the following source:\n";

    private static final String offendingMethodErrorMessage =

        "Method %s of class %s doesn't have the ACC_STRICT access flag";

    JavaSource source = new JavaSource();

    private List<String> errors = new ArrayList<>();

    public static void main(String[] args)

            throws IOException, ConstantPoolException, InvalidDescriptor {

        JavaCompiler comp = ToolProvider.getSystemJavaCompiler();

        new CheckACC_STRICTFlagOnPkgAccessClassTest().run(comp);

    }

    private void run(JavaCompiler comp)

            throws IOException, ConstantPoolException, InvalidDescriptor {

        compile(comp);

        check();

        if (errors.size() > 0) {

            for (String error: errors) {

                System.err.println(error);

            }

            throw new AssertionError(AssertionErrorMessage);

        }

    }

    private void compile(JavaCompiler comp) {

        JavacTask ct = (JavacTask)comp.getTask(null, null, null, null, null,

                Arrays.asList(source));

        try {

            if (!ct.call()) {

                throw new AssertionError(CompilationErrorMessage +

                        source.getCharContent(true));

            }

        } catch (Throwable ex) {

            throw new AssertionError(CompilationErrorMessage +

                    source.getCharContent(true));

        }

    }

    void check()

        throws

            IOException,

            ConstantPoolException,

            Descriptor.InvalidDescriptor {

        ClassFile classFileToCheck = ClassFile.read(new File("Test.class"));

        for (Method method : classFileToCheck.methods) {

            if ((method.access_flags.flags & ACC_STRICT) == 0) {

                errors.add(String.format(offendingMethodErrorMessage,

                        method.getName(classFileToCheck.constant_pool),

                        classFileToCheck.getName()));

            }

        }

    }

    class JavaSource extends SimpleJavaFileObject {

        String source = "strictfp class Test {" +

                "    Test(){}" +

                "    void m(){}" +

                "}";

        public JavaSource() {

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

        }

        @Override

        public CharSequence getCharContent(boolean ignoreEncodingErrors) {

            return source;

        }

    }

}