user@home> ./jallie --dis Hello.class 2>/dev/null
ClassFile {
u4 magic = 0xcafebabe
u2 minor_version = 0
u2 major_version = 50
u2 constant_pool_count = 29
cp_info constant_pool[29] {
[ 0 ] [Unused]
[ 1 ] CONSTANT_Methodref_info {
u1 tag = 10
u2 class_index = #6 // "java/lang/Object"
u2 name_and_type_index = #15 // ()V
}
[ 2 ] CONSTANT_Fieldref_info {
u1 tag = 9
u2 class_index = #16 // "java/lang/System"
u2 name_and_type_index = #17 // out Ljava/io/PrintStream;
}
[ 3 ] CONSTANT_String_info {
u1 tag = 8
u2 string_index = #18 // "Hello, world!"
}
[ 4 ] CONSTANT_Methodref_info {
u1 tag = 10
u2 class_index = #19 // "java/io/PrintStream"
u2 name_and_type_index = #20 // println (Ljava/lang/String;)V
}
[ 5 ] CONSTANT_Class_info {
u1 tag = 7
u2 name_index = #21 // "Hello"
}
[ 6 ] CONSTANT_Class_info {
u1 tag = 7
u2 name_index = #22 // "java/lang/Object"
}
[ 7 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 6
u1 bytes[] = ""
}
[ 8 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 3
u1 bytes[] = "()V"
}
[ 9 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 4
u1 bytes[] = "Code"
}
[ 10 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 15
u1 bytes[] = "LineNumberTable"
}
[ 11 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 4
u1 bytes[] = "main"
}
[ 12 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 22
u1 bytes[] = "([Ljava/lang/String;)V"
}
[ 13 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 10
u1 bytes[] = "SourceFile"
}
[ 14 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 10
u1 bytes[] = "Hello.java"
}
[ 15 ] CONSTANT_NameAndType_info {
u1 tag = 12
u2 name_index = #7 // ""
u2 descriptor_index = #8 // "()V"
}
[ 16 ] CONSTANT_Class_info {
u1 tag = 7
u2 name_index = #23 // "java/lang/System"
}
[ 17 ] CONSTANT_NameAndType_info {
u1 tag = 12
u2 name_index = #24 // "out"
u2 descriptor_index = #25 // "Ljava/io/PrintStream;"
}
[ 18 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 13
u1 bytes[] = "Hello, world!"
}
[ 19 ] CONSTANT_Class_info {
u1 tag = 7
u2 name_index = #26 // "java/io/PrintStream"
}
[ 20 ] CONSTANT_NameAndType_info {
u1 tag = 12
u2 name_index = #27 // "println"
u2 descriptor_index = #28 // "(Ljava/lang/String;)V"
}
[ 21 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 5
u1 bytes[] = "Hello"
}
[ 22 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 16
u1 bytes[] = "java/lang/Object"
}
[ 23 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 16
u1 bytes[] = "java/lang/System"
}
[ 24 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 3
u1 bytes[] = "out"
}
[ 25 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 21
u1 bytes[] = "Ljava/io/PrintStream;"
}
[ 26 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 19
u1 bytes[] = "java/io/PrintStream"
}
[ 27 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 7
u1 bytes[] = "println"
}
[ 28 ] CONSTANT_Utf8_info {
u1 tag = 1
u2 length = 21
u1 bytes[] = "(Ljava/lang/String;)V"
}
}
u2 access_flags = ( ACC_PUBLIC, ACC_SUPER )
u2 this_class = #5 // "Hello"
u2 super_class = #6 // "java/lang/Object"
u2 interfaces_count = 0
u2 interfaces[0] {
}
u2 fields_count = 0
field_info fields[0] {
}
u2 methods_count = 2
method_info methods[2] {
[ 0 ] method_info {
u2 access_flags = ( ACC_PUBLIC )
u2 name_index = #7 // ""
u2 descriptor_index = #8 // "()V"
u2 attributes_count = 1
attribute_info attributes[1] {
[ 0 ] Code_attribute {
u2 attribute_name_index = #9 // "Code"
u4 attribute_length = 29
u2 max_stack = 1
u2 max_locals = 1
u4 code_length = 5
bytecode code[3] {
[ 0 ] aload_0 {
u1 opcode = 0x2a
}
[ 1 ] invokespecial {
u1 opcode = 0xb7
u2 index = #1 // java/lang/Object. ()V
}
[ 2 ] vreturn {
u1 opcode = 0xb1
}
}
u2 exception_table_length = 0
exception_table_entry exception_table[0] {
}
u2 attributes_count = 1
attribute_info attributes[1] {
[ 0 ] LineNumberTable_attribute {
u2 attribute_name_index = #10 // "LineNumberTable"
u4 attribute_length = 6
u2 line_number_table_length = 1
line_number_table_entry line_number_table[1] {
[ 0 ] line_number_table_entry {
u2 start_pc = 0
u2 line_number = 1
}
}
}
}
}
}
}
[ 1 ] method_info {
u2 access_flags = ( ACC_PUBLIC, ACC_STATIC )
u2 name_index = #11 // "main"
u2 descriptor_index = #12 // "([Ljava/lang/String;)V"
u2 attributes_count = 1
attribute_info attributes[1] {
[ 0 ] Code_attribute {
u2 attribute_name_index = #9 // "Code"
u4 attribute_length = 37
u2 max_stack = 2
u2 max_locals = 1
u4 code_length = 9
bytecode code[4] {
[ 0 ] getstatic {
u1 opcode = 0xb2
u2 index = #2 // java/lang/System.out Ljava/io/PrintStream;
}
[ 1 ] ldc {
u1 opcode = 0x12
u1 index = #3 // "Hello, world!"
}
[ 2 ] invokevirtual {
u1 opcode = 0xb6
u2 index = #4 // java/io/PrintStream.println (Ljava/lang/String;)V
}
[ 3 ] vreturn {
u1 opcode = 0xb1
}
}
u2 exception_table_length = 0
exception_table_entry exception_table[0] {
}
u2 attributes_count = 1
attribute_info attributes[1] {
[ 0 ] LineNumberTable_attribute {
u2 attribute_name_index = #10 // "LineNumberTable"
u4 attribute_length = 10
u2 line_number_table_length = 2
line_number_table_entry line_number_table[2] {
[ 0 ] line_number_table_entry {
u2 start_pc = 0
u2 line_number = 3
}
[ 1 ] line_number_table_entry {
u2 start_pc = 8
u2 line_number = 4
}
}
}
}
}
}
}
}
u2 attributes_count = 1
attribute_info attributes[1] {
[ 0 ] SourceFile_attribute {
u2 attribute_name_index = #13 // "SourceFile"
u4 attribute_length = 2
u2 sourcefile_index = #14 // "Hello.java"
}
}
}
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