/*

 * @test  /nodynamiccopyright/

 * @bug 8024207

 * @summary javac crash in Flow$AssignAnalyzer.visitIdent

 * @compile/fail/ref=FlowCrashTest.out -XDrawDiagnostics FlowCrashTest.java

 */

import java.util.*;

import java.util.stream.*;

public class FlowCrashTest {

    static class ViewId { }

    public void crash() {

        Map<ViewId,String> viewToProfile = null;

        new TreeMap<>(viewToProfile.entrySet().stream()

                      .collect(Collectors.toMap((vid, prn) -> prn,

                                                (vid, prn) -> Arrays.asList(vid),

                                                (a, b) -> { a.addAll(b); return a; })));

    }

}