Syntactically equal ldc Dynamic instructions create different entries in BootstrapMethods attribute.
jasm:
....
 public static varargs Method main:"([Ljava/lang/String;)V"
stack 2 locals 1
  {
ldc Dynamic REF_newInvokeSpecial:Method LdcConDyTwice."<init>":"(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/Class;)V":LdcConDyTwice:"LLdcConDyTwice;";
pop;
ldc Dynamic REF_newInvokeSpecial:Method LdcConDyTwice."<init>":"(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/Class;)V":LdcConDyTwice:"LLdcConDyTwice;";
pop;
ldc Dynamic REF_newInvokeSpecial:Method LdcConDyTwice."<init>":"(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/Class;)V":LdcConDyTwice:"LLdcConDyTwice;";
pop;
getstatic Field java/lang/System.out:"Ljava/io/PrintStream;";
ldc String "Executed normally.";
invokevirtual Method java/io/PrintStream.println:"(Ljava/lang/String;)V";
return;
 }
....
jasm -> class -> jcod produces:
.....
Attr(#29) { // BootstrapMethods
      [] { // bootstrap_methods
        { // bootstrap_method
          #17; // bootstrap_method_ref
          [] { // bootstrap_arguments
          } // bootstrap_arguments
        } // bootstrap_method
        ;
        { // bootstrap_method
          #17; // bootstrap_method_ref
          [] { // bootstrap_arguments
          } // bootstrap_arguments
        } // bootstrap_method
        ;
        { // bootstrap_method
          #17; // bootstrap_method_ref
          [] { // bootstrap_arguments
          } // bootstrap_arguments
        } // bootstrap_method
      }
    } // end BootstrapMethods
......