package com.zarbosoft.semicompiled;
class MyClass {
int x = 14;
public MyClass() {
x = 99;
}
}
Classfile /tmp/semicompiled-OsECV9nG-10956646325551773929/com/zarbosoft/semicompiled/MyClass.class
Last modified Jun 2, 2024; size 187 bytes
MD5 checksum 44a456e6dd188a80ec893ea458150ce7
class com.zarbosoft.semicompiled.MyClass
minor version: 0
major version: 52
flags: (0x0020) ACC_SUPER
this_class: #3 // com/zarbosoft/semicompiled/MyClass
super_class: #4 // java/lang/Object
interfaces: 0, fields: 1, methods: 1, attributes: 0
Constant pool:
#1 = Methodref #4.#10 // java/lang/Object."<init>":()V
#2 = Fieldref #3.#11 // com/zarbosoft/semicompiled/MyClass.x:I
#3 = Class #12 // com/zarbosoft/semicompiled/MyClass
#4 = Class #13 // java/lang/Object
#5 = Utf8 x
#6 = Utf8 I
#7 = Utf8 <init>
#8 = Utf8 ()V
#9 = Utf8 Code
#10 = NameAndType #7:#8 // "<init>":()V
#11 = NameAndType #5:#6 // x:I
#12 = Utf8 com/zarbosoft/semicompiled/MyClass
#13 = Utf8 java/lang/Object
{
int x;
descriptor: I
flags: (0x0000)
public com.zarbosoft.semicompiled.MyClass();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=1, args_size=1
0: aload_0
1: invokespecial #1 // Method java/lang/Object."<init>":()V
4: aload_0
5: bipush 14
7: putfield #2 // Field x:I
10: aload_0
11: bipush 99
13: putfield #2 // Field x:I
16: return
}
package asm.com.zarbosoft.semicompiled;
import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.Attribute;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.ConstantDynamic;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.Handle;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.RecordComponentVisitor;
import org.objectweb.asm.Type;
import org.objectweb.asm.TypePath;
public class MyClassDump implements Opcodes {
public static byte[] dump() throws Exception {
ClassWriter classWriter = new ClassWriter(0);
FieldVisitor fieldVisitor;
RecordComponentVisitor recordComponentVisitor;
MethodVisitor methodVisitor;
AnnotationVisitor annotationVisitor0;
classWriter.visit(
V1_8, ACC_SUPER, "com/zarbosoft/semicompiled/MyClass", null, "java/lang/Object", null);
{
fieldVisitor = classWriter.visitField(0, "x", "I", null, null);
fieldVisitor.visitEnd();
}
{
methodVisitor = classWriter.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
methodVisitor.visitCode();
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitIntInsn(BIPUSH, 14);
methodVisitor.visitFieldInsn(PUTFIELD, "com/zarbosoft/semicompiled/MyClass", "x", "I");
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitIntInsn(BIPUSH, 99);
methodVisitor.visitFieldInsn(PUTFIELD, "com/zarbosoft/semicompiled/MyClass", "x", "I");
methodVisitor.visitInsn(RETURN);
methodVisitor.visitMaxs(2, 1);
methodVisitor.visitEnd();
}
classWriter.visitEnd();
return classWriter.toByteArray();
}
}
Classfile /tmp/semicompiled-OsECV9nG-10956646325551773929/com/zarbosoft/semicompiled/MyClass.class
Last modified Jun 2, 2024; size 350 bytes
MD5 checksum 3da6cc85cc4d4d83c6c87178f7810756
Compiled from "MyClass.java"
class com.zarbosoft.semicompiled.MyClass
minor version: 0
major version: 52
flags: (0x0020) ACC_SUPER
this_class: #3 // com/zarbosoft/semicompiled/MyClass
super_class: #4 // java/lang/Object
interfaces: 0, fields: 1, methods: 1, attributes: 1
Constant pool:
#1 = Methodref #4.#16 // java/lang/Object."<init>":()V
#2 = Fieldref #3.#17 // com/zarbosoft/semicompiled/MyClass.x:I
#3 = Class #18 // com/zarbosoft/semicompiled/MyClass
#4 = Class #19 // java/lang/Object
#5 = Utf8 x
#6 = Utf8 I
#7 = Utf8 <init>
#8 = Utf8 ()V
#9 = Utf8 Code
#10 = Utf8 LineNumberTable
#11 = Utf8 LocalVariableTable
#12 = Utf8 this
#13 = Utf8 Lcom/zarbosoft/semicompiled/MyClass;
#14 = Utf8 SourceFile
#15 = Utf8 MyClass.java
#16 = NameAndType #7:#8 // "<init>":()V
#17 = NameAndType #5:#6 // x:I
#18 = Utf8 com/zarbosoft/semicompiled/MyClass
#19 = Utf8 java/lang/Object
{
int x;
descriptor: I
flags: (0x0000)
public com.zarbosoft.semicompiled.MyClass();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=1, args_size=1
0: aload_0
1: invokespecial #1 // Method java/lang/Object."<init>":()V
4: aload_0
5: bipush 14
7: putfield #2 // Field x:I
10: aload_0
11: bipush 99
13: putfield #2 // Field x:I
16: return
LineNumberTable:
line 6: 0
line 4: 4
line 7: 10
line 8: 16
LocalVariableTable:
Start Length Slot Name Signature
0 17 0 this Lcom/zarbosoft/semicompiled/MyClass;
}
SourceFile: "MyClass.java"
package asm.com.zarbosoft.semicompiled;
import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.Attribute;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.ConstantDynamic;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.Handle;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.RecordComponentVisitor;
import org.objectweb.asm.Type;
import org.objectweb.asm.TypePath;
public class MyClassDump implements Opcodes {
public static byte[] dump() throws Exception {
ClassWriter classWriter = new ClassWriter(0);
FieldVisitor fieldVisitor;
RecordComponentVisitor recordComponentVisitor;
MethodVisitor methodVisitor;
AnnotationVisitor annotationVisitor0;
classWriter.visit(
V1_8, ACC_SUPER, "com/zarbosoft/semicompiled/MyClass", null, "java/lang/Object", null);
classWriter.visitSource("MyClass.java", null);
{
fieldVisitor = classWriter.visitField(0, "x", "I", null, null);
fieldVisitor.visitEnd();
}
{
methodVisitor = classWriter.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
methodVisitor.visitCode();
Label label0 = new Label();
methodVisitor.visitLabel(label0);
methodVisitor.visitLineNumber(6, label0);
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
Label label1 = new Label();
methodVisitor.visitLabel(label1);
methodVisitor.visitLineNumber(4, label1);
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitIntInsn(BIPUSH, 14);
methodVisitor.visitFieldInsn(PUTFIELD, "com/zarbosoft/semicompiled/MyClass", "x", "I");
Label label2 = new Label();
methodVisitor.visitLabel(label2);
methodVisitor.visitLineNumber(7, label2);
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitIntInsn(BIPUSH, 99);
methodVisitor.visitFieldInsn(PUTFIELD, "com/zarbosoft/semicompiled/MyClass", "x", "I");
Label label3 = new Label();
methodVisitor.visitLabel(label3);
methodVisitor.visitLineNumber(8, label3);
methodVisitor.visitInsn(RETURN);
Label label4 = new Label();
methodVisitor.visitLabel(label4);
methodVisitor.visitLocalVariable(
"this", "Lcom/zarbosoft/semicompiled/MyClass;", null, label0, label4, 0);
methodVisitor.visitMaxs(2, 1);
methodVisitor.visitEnd();
}
classWriter.visitEnd();
return classWriter.toByteArray();
}
}
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