A Java class file parser based on Java Visual Machine Specification，just like javap which is an inclusive powerful tool of Java Developer's Kit to parser byte code.
source file of the test case
package decompile;
import java.util.Iterator;
public class IterableClass implements Iterable<String>{
private String[] arr;
public IterableClass(String[] arr) {
this.arr = arr;
}
@Override
public Iterator<String> iterator() {
return new Iterator<String>() {
private int index = 0;
@Override
public boolean hasNext() {
return index < arr.length;
}
@Override
public String next() {
return arr[index++];
}
@Override
public void remove() {
//TODO
}
};
}
}hexadecimal data of the class file
CA, FE, BA, BE, 00, 00, 00, 34, 00, 25, 09, 00, 05, 00, 1C, 0A
00, 06, 00, 1D, 07, 00, 1E, 0A, 00, 03, 00, 1F, 07, 00, 20, 07
00, 21, 07, 00, 22, 01, 00, 0C, 49, 6E, 6E, 65, 72, 43, 6C, 61
73, 73, 65, 73, 01, 00, 03, 61, 72, 72, 01, 00, 13, 5B, 4C, 6A
61, 76, 61, 2F, 6C, 61, 6E, 67, 2F, 53, 74, 72, 69, 6E, 67, 3B
01, 00, 06, 3C, 69, 6E, 69, 74, 3E, 01, 00, 16, 28, 5B, 4C, 6A
61, 76, 61, 2F, 6C, 61, 6E, 67, 2F, 53, 74, 72, 69, 6E, 67, 3B
29, 56, 01, 00, 04, 43, 6F, 64, 65, 01, 00, 0F, 4C, 69, 6E, 65
4E, 75, 6D, 62, 65, 72, 54, 61, 62, 6C, 65, 01, 00, 12, 4C, 6F
63, 61, 6C, 56, 61, 72, 69, 61, 62, 6C, 65, 54, 61, 62, 6C, 65
01, 00, 04, 74, 68, 69, 73, 01, 00, 19, 4C, 64, 65, 63, 6F, 6D
70, 69, 6C, 65, 2F, 49, 74, 65, 72, 61, 62, 6C, 65, 43, 6C, 61
73, 73, 3B, 01, 00, 08, 69, 74, 65, 72, 61, 74, 6F, 72, 01, 00
16, 28, 29, 4C, 6A, 61, 76, 61, 2F, 75, 74, 69, 6C, 2F, 49, 74
65, 72, 61, 74, 6F, 72, 3B, 01, 00, 09, 53, 69, 67, 6E, 61, 74
75, 72, 65, 01, 00, 2A, 28, 29, 4C, 6A, 61, 76, 61, 2F, 75, 74
69, 6C, 2F, 49, 74, 65, 72, 61, 74, 6F, 72, 3C, 4C, 6A, 61, 76
61, 2F, 6C, 61, 6E, 67, 2F, 53, 74, 72, 69, 6E, 67, 3B, 3E, 3B
01, 00, 0A, 61, 63, 63, 65, 73, 73, 24, 30, 30, 30, 01, 00, 2E
28, 4C, 64, 65, 63, 6F, 6D, 70, 69, 6C, 65, 2F, 49, 74, 65, 72
61, 62, 6C, 65, 43, 6C, 61, 73, 73, 3B, 29, 5B, 4C, 6A, 61, 76
61, 2F, 6C, 61, 6E, 67, 2F, 53, 74, 72, 69, 6E, 67, 3B, 01, 00
02, 78, 30, 01, 00, 3A, 4C, 6A, 61, 76, 61, 2F, 6C, 61, 6E, 67
2F, 4F, 62, 6A, 65, 63, 74, 3B, 4C, 6A, 61, 76, 61, 2F, 6C, 61
6E, 67, 2F, 49, 74, 65, 72, 61, 62, 6C, 65, 3C, 4C, 6A, 61, 76
61, 2F, 6C, 61, 6E, 67, 2F, 53, 74, 72, 69, 6E, 67, 3B, 3E, 3B
01, 00, 0A, 53, 6F, 75, 72, 63, 65, 46, 69, 6C, 65, 01, 00, 12
49, 74, 65, 72, 61, 62, 6C, 65, 43, 6C, 61, 73, 73, 2E, 6A, 61
76, 61, 0C, 00, 09, 00, 0A, 0C, 00, 0B, 00, 23, 01, 00, 19, 64
65, 63, 6F, 6D, 70, 69, 6C, 65, 2F, 49, 74, 65, 72, 61, 62, 6C
65, 43, 6C, 61, 73, 73, 24, 31, 0C, 00, 0B, 00, 24, 01, 00, 17
64, 65, 63, 6F, 6D, 70, 69, 6C, 65, 2F, 49, 74, 65, 72, 61, 62
6C, 65, 43, 6C, 61, 73, 73, 01, 00, 10, 6A, 61, 76, 61, 2F, 6C
61, 6E, 67, 2F, 4F, 62, 6A, 65, 63, 74, 01, 00, 12, 6A, 61, 76
61, 2F, 6C, 61, 6E, 67, 2F, 49, 74, 65, 72, 61, 62, 6C, 65, 01
00, 03, 28, 29, 56, 01, 00, 1C, 28, 4C, 64, 65, 63, 6F, 6D, 70
69, 6C, 65, 2F, 49, 74, 65, 72, 61, 62, 6C, 65, 43, 6C, 61, 73
73, 3B, 29, 56, 00, 21, 00, 05, 00, 06, 00, 01, 00, 07, 00, 01
00, 02, 00, 09, 00, 0A, 00, 00, 00, 03, 00, 01, 00, 0B, 00, 0C
00, 01, 00, 0D, 00, 00, 00, 46, 00, 02, 00, 02, 00, 00, 00, 0A
2A, B7, 00, 02, 2A, 2B, B5, 00, 01, B1, 00, 00, 00, 02, 00, 0E
00, 00, 00, 0E, 00, 03, 00, 00, 00, 09, 00, 04, 00, 0A, 00, 09
00, 0B, 00, 0F, 00, 00, 00, 16, 00, 02, 00, 00, 00, 0A, 00, 10
00, 11, 00, 00, 00, 00, 00, 0A, 00, 09, 00, 0A, 00, 01, 00, 01
00, 12, 00, 13, 00, 02, 00, 0D, 00, 00, 00, 33, 00, 03, 00, 01
00, 00, 00, 09, BB, 00, 03, 59, 2A, B7, 00, 04, B0, 00, 00, 00
02, 00, 0E, 00, 00, 00, 06, 00, 01, 00, 00, 00, 0F, 00, 0F, 00
00, 00, 0C, 00, 01, 00, 00, 00, 09, 00, 10, 00, 11, 00, 00, 00
14, 00, 00, 00, 02, 00, 15, 10, 08, 00, 16, 00, 17, 00, 01, 00
0D, 00, 00, 00, 2F, 00, 01, 00, 01, 00, 00, 00, 05, 2A, B4, 00
01, B0, 00, 00, 00, 02, 00, 0E, 00, 00, 00, 06, 00, 01, 00, 00
00, 05, 00, 0F, 00, 00, 00, 0C, 00, 01, 00, 00, 00, 05, 00, 18
00, 11, 00, 00, 00, 03, 00, 14, 00, 00, 00, 02, 00, 19, 00, 1A
00, 00, 00, 02, 00, 1B, 00, 08, 00, 00, 00, 0A, 00, 01, 00, 03
00, 00, 00, 00, 00, 00
analytical result of the constant pool
#1 = Filedref #5, #28 // decompile/IterableClass, arr:[Ljava/lang/String;
#2 = Methodref #6, #29 // java/lang/Object, <init>:()V
#3 = Class #30 // decompile/IterableClass$1
#4 = Methodref #3, #31 // decompile/IterableClass$1, <init>:(Ldecompile/IterableClass;)V
#5 = Class #32 // decompile/IterableClass
#6 = Class #33 // java/lang/Object
#7 = Class #34 // java/lang/Iterable
#8 = Utf8 InnerClasses
#9 = Utf8 arr
#10 = Utf8 [Ljava/lang/String;
#11 = Utf8 <init>
#12 = Utf8 ([Ljava/lang/String;)V
#13 = Utf8 Code
#14 = Utf8 LineNumberTable
#15 = Utf8 LocalVariableTable
#16 = Utf8 this
#17 = Utf8 Ldecompile/IterableClass;
#18 = Utf8 iterator
#19 = Utf8 ()Ljava/util/Iterator;
#20 = Utf8 Signature
#21 = Utf8 ()Ljava/util/Iterator<Ljava/lang/String;>;
#22 = Utf8 access$000
#23 = Utf8 (Ldecompile/IterableClass;)[Ljava/lang/String;
#24 = Utf8 x0
#25 = Utf8 Ljava/lang/Object;Ljava/lang/Iterable<Ljava/lang/String;>;
#26 = Utf8 SourceFile
#27 = Utf8 IterableClass.java
#28 = NameAndType #9, #10 // arr:[Ljava/lang/String;
#29 = NameAndType #11, #35 // <init>:()V
#30 = Utf8 decompile/IterableClass$1
#31 = NameAndType #11, #36 // <init>:(Ldecompile/IterableClass;)V
#32 = Utf8 decompile/IterableClass
#33 = Utf8 java/lang/Object
#34 = Utf8 java/lang/Iterable
#35 = Utf8 ()V
#36 = Utf8 (Ldecompile/IterableClass;)V