package test;

import java.util.Comparator;
import java.io.Serializable;

public class StringComparator implements Comparator<String> {
    @Override
    public int compare(String s1, String s2) {
        return Integer.compare(s1.charAt(0), s2.charAt(0));
    }
}

public class Test {
    public static final Comparator<String> SOME_COMPARATOR = new StringComparator();

    public static void main(String[] args) {
        Comparator<String> methodReference = (Comparator<String> & Serializable) SOME_COMPARATOR::compare;
        Comparator<String> lambda          = (Comparator<String> & Serializable) (a,b) -> SOME_COMPARATOR.compare(a,b);
    }
}

/******************************************************
            Decompiled with javap -p -c
*******************************************************
Compiled from "Test.java"
public class test.Test {
  public static final java.util.Comparator<java.lang.String> SOME_COMPARATOR;

  public test.Test();
    Code:
       0: aload_0
       1: invokespecial #1                  // Method java/lang/Object."<init>":()V
       4: return

  public static void main(java.lang.String[]);
    Code:
       0: getstatic     #2                  // Field SOME_COMPARATOR:Ljava/util/Comparator;
       3: dup
       4: invokevirtual #3                  // Method java/lang/Object.getClass:()Ljava/lang/Class;
       7: pop
       8: invokedynamic #4,  0              // InvokeDynamic #0:compare:(Ljava/util/Comparator;)Ljava/util/Comparator;
      13: checkcast     #5                  // class java/io/Serializable
      16: checkcast     #6                  // class java/util/Comparator
      19: astore_1
      20: invokedynamic #7,  0              // InvokeDynamic #1:compare:()Ljava/util/Comparator;
      25: checkcast     #5                  // class java/io/Serializable
      28: checkcast     #6                  // class java/util/Comparator
      31: astore_2
      32: return

  private static java.lang.Object $deserializeLambda$(java.lang.invoke.SerializedLambda);
    Code:
       0: aload_0
       1: invokevirtual #8                  // Method java/lang/invoke/SerializedLambda.getImplMethodName:()Ljava/lang/String;
       4: astore_1
       5: iconst_m1
       6: istore_2
       7: aload_1
       8: invokevirtual #9                  // Method java/lang/String.hashCode:()I
      11: lookupswitch  { // 2

             950484197: 36

            1200933166: 50
               default: 61
          }
      36: aload_1
      37: ldc           #10                 // String compare
      39: invokevirtual #11                 // Method java/lang/String.equals:(Ljava/lang/Object;)Z
      42: ifeq          61
      45: iconst_0
      46: istore_2
      47: goto          61
      50: aload_1
      51: ldc           #12                 // String lambda$main$62cfd7bc$1
      53: invokevirtual #11                 // Method java/lang/String.equals:(Ljava/lang/Object;)Z
      56: ifeq          61
      59: iconst_1
      60: istore_2
      61: iload_2
      62: lookupswitch  { // 2

                     0: 88

                     1: 171
               default: 246
          }
      88: aload_0
      89: invokevirtual #13                 // Method java/lang/invoke/SerializedLambda.getImplMethodKind:()I
      92: bipush        9
      94: if_icmpne     246
      97: aload_0
      98: invokevirtual #14                 // Method java/lang/invoke/SerializedLambda.getFunctionalInterfaceClass:()Ljava/lang/String;
     101: ldc           #15                 // String java/util/Comparator
     103: invokevirtual #16                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
     106: ifeq          246
     109: aload_0
     110: invokevirtual #17                 // Method java/lang/invoke/SerializedLambda.getFunctionalInterfaceMethodName:()Ljava/lang/String;
     113: ldc           #10                 // String compare
     115: invokevirtual #16                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
     118: ifeq          246
     121: aload_0
     122: invokevirtual #18                 // Method java/lang/invoke/SerializedLambda.getFunctionalInterfaceMethodSignature:()Ljava/lang/String;
     125: ldc           #19                 // String (Ljava/lang/Object;Ljava/lang/Object;)I
     127: invokevirtual #16                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
     130: ifeq          246
     133: aload_0
     134: invokevirtual #20                 // Method java/lang/invoke/SerializedLambda.getImplClass:()Ljava/lang/String;
     137: ldc           #15                 // String java/util/Comparator
     139: invokevirtual #16                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
     142: ifeq          246
     145: aload_0
     146: invokevirtual #21                 // Method java/lang/invoke/SerializedLambda.getImplMethodSignature:()Ljava/lang/String;
     149: ldc           #19                 // String (Ljava/lang/Object;Ljava/lang/Object;)I
     151: invokevirtual #16                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
     154: ifeq          246
     157: aload_0
     158: iconst_0
     159: invokevirtual #22                 // Method java/lang/invoke/SerializedLambda.getCapturedArg:(I)Ljava/lang/Object;
     162: checkcast     #6                  // class java/util/Comparator
     165: invokedynamic #4,  0              // InvokeDynamic #0:compare:(Ljava/util/Comparator;)Ljava/util/Comparator;
     170: areturn
     171: aload_0
     172: invokevirtual #13                 // Method java/lang/invoke/SerializedLambda.getImplMethodKind:()I
     175: bipush        6
     177: if_icmpne     246
     180: aload_0
     181: invokevirtual #14                 // Method java/lang/invoke/SerializedLambda.getFunctionalInterfaceClass:()Ljava/lang/String;
     184: ldc           #15                 // String java/util/Comparator
     186: invokevirtual #16                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
     189: ifeq          246
     192: aload_0
     193: invokevirtual #17                 // Method java/lang/invoke/SerializedLambda.getFunctionalInterfaceMethodName:()Ljava/lang/String;
     196: ldc           #10                 // String compare
     198: invokevirtual #16                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
     201: ifeq          246
     204: aload_0
     205: invokevirtual #18                 // Method java/lang/invoke/SerializedLambda.getFunctionalInterfaceMethodSignature:()Ljava/lang/String;
     208: ldc           #19                 // String (Ljava/lang/Object;Ljava/lang/Object;)I
     210: invokevirtual #16                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
     213: ifeq          246
     216: aload_0
     217: invokevirtual #20                 // Method java/lang/invoke/SerializedLambda.getImplClass:()Ljava/lang/String;
     220: ldc           #23                 // String test/Test
     222: invokevirtual #16                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
     225: ifeq          246
     228: aload_0
     229: invokevirtual #21                 // Method java/lang/invoke/SerializedLambda.getImplMethodSignature:()Ljava/lang/String;
     232: ldc           #24                 // String (Ljava/lang/String;Ljava/lang/String;)I
     234: invokevirtual #16                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
     237: ifeq          246
     240: invokedynamic #7,  0              // InvokeDynamic #1:compare:()Ljava/util/Comparator;
     245: areturn
     246: new           #25                 // class java/lang/IllegalArgumentException
     249: dup
     250: ldc           #26                 // String Invalid lambda deserialization
     252: invokespecial #27                 // Method java/lang/IllegalArgumentException."<init>":(Ljava/lang/String;)V
     255: athrow

  private static int lambda$main$62cfd7bc$1(java.lang.String, java.lang.String);
    Code:
       0: getstatic     #2                  // Field SOME_COMPARATOR:Ljava/util/Comparator;
       3: aload_0
       4: aload_1
       5: invokeinterface #28,  3           // InterfaceMethod java/util/Comparator.compare:(Ljava/lang/Object;Ljava/lang/Object;)I
      10: ireturn

  static {};
    Code:
       0: new           #29                 // class test/StringComparator
       3: dup
       4: invokespecial #30                 // Method test/StringComparator."<init>":()V
       7: putstatic     #2                  // Field SOME_COMPARATOR:Ljava/util/Comparator;
      10: return
}








*/