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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 8158224
 * @summary NullPointerException in com.sun.tools.javac.comp.Modules.checkCyclicDependencies when module missing
 * @library /tools/lib
 * @modules
 *      jdk.compiler/com.sun.tools.javac.api
 *      jdk.compiler/com.sun.tools.javac.main
 * @build toolbox.ToolBox toolbox.JavacTask
 * @build Processor
 * @run main T8158224
 */

// previously:
// @compile/fail/ref=T8158224.out -XDrawDiagnostics -processor Processor mods/foo/module-info.java

import java.util.List;
import toolbox.JavacTask;
import toolbox.Task;
import toolbox.ToolBox;

public class T8158224 {
    public static void main(String... args) throws Exception {
        ToolBox tb = new ToolBox();

        List<String> log = new JavacTask(tb)
                .options("-XDrawDiagnostics",
                        "-processor", "Processor",
                        "-sourcepath", tb.testSrc + "/mods/foo",
                        "-classpath", tb.testClasses)
                .files(tb.testSrc + "/mods/foo/module-info.java")
                .run(Task.Expect.FAIL)
                .writeAll()
                .getOutputLines(Task.OutputKind.DIRECT);

        if (!log.equals(List.of(
                "module-info.java:4:14: compiler.err.module.not.found: nonexistent",
                "1 error"))) {
            throw new Exception("Expected output not found");
        }
    }
}