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/**

 * @test

 * @bug 8168312

 * @summary javac throws NPE if annotation processor is specified and module is declared in a file named arbitrarily

 * @library /tools/lib

 * @modules

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

 *      jdk.compiler/com.sun.tools.javac.main

 * @build toolbox.ToolBox toolbox.JavacTask ModuleTestBase

 * @run main AnnotationProcessingWithModuleInfoInWrongPlace

 */

import java.nio.file.Files;

import java.nio.file.Path;

import java.util.Set;

import javax.annotation.processing.AbstractProcessor;

import javax.annotation.processing.RoundEnvironment;

import javax.annotation.processing.SupportedAnnotationTypes;

import javax.lang.model.SourceVersion;

import javax.lang.model.element.TypeElement;

import toolbox.JavacTask;

import toolbox.Task;

public class AnnotationProcessingWithModuleInfoInWrongPlace extends ModuleTestBase {

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

        new AnnotationProcessingWithModuleInfoInWrongPlace().runTests();

    }

    @Test

    public void testModuleInfoInWrongPlace(Path base) throws Exception {

        Path moduleSrc = base.resolve("module-src");

        Path m = moduleSrc.resolve("m");

        Path classes = base.resolve("classes");

        Files.createDirectories(classes);

        tb.writeJavaFiles(m, "module m {}");

        Path mi = m.resolve("module-info.java");

        Path f = m.resolve("F.java");

        tb.moveFile(mi, f);

        String log = new JavacTask(tb)

                .options("-XDrawDiagnostics",

                         "--module-source-path", moduleSrc.toString(),

                         "-processor", AP.class.getName())

                .outdir(classes)

                .files(findJavaFiles(moduleSrc))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutput(Task.OutputKind.DIRECT);

        if (!log.contains("F.java:1:1: compiler.err.module.decl.sb.in.module-info.java"))

            throw new AssertionError("Unexpected output: " + log);

    }

    @SupportedAnnotationTypes("*")

    public static final class AP extends AbstractProcessor {

        @Override

        public boolean process(Set<? extends TypeElement> annot, RoundEnvironment env) {

            return false;

        }

        @Override

        public SourceVersion getSupportedSourceVersion() {

            return SourceVersion.latest();

        }

    }

}