public static java.lang.String foo2(java.util.List<java.lang.String>);
    Code:
       0: aload_0
       1: iconst_0
       2: invokeinterface #2,  2            // InterfaceMethod java/util/List.get:(I)Ljava/lang/Object;
       7: checkcast     #3                  // class java/lang/String
      10: astore_1
      11: aload_0
      12: iconst_1
      13: invokeinterface #2,  2            // InterfaceMethod java/util/List.get:(I)Ljava/lang/Object;
      18: checkcast     #3                  // class java/lang/String
      21: astore_2
      22: new           #4                  // class java/lang/StringBuilder
      25: dup
      26: invokespecial #5                  // Method java/lang/StringBuilder."<init>":()V
      29: aload_2
      30: invokevirtual #6                  // Method java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
      33: ldc           #7                  // String ,
      35: invokevirtual #6                  // Method java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
      38: aload_1
      39: invokevirtual #6                  // Method java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
      42: invokevirtual #8                  // Method java/lang/StringBuilder.toString:()Ljava/lang/String;
      45: areturn