package com.zarbosoft.semicompiled;
import java.lang.Float;
class Main {
public static void myMain() {
float x = Float.valueOf((float) 2).floatValue();
}
}
Classfile /tmp/semicompiled-4IeGaY2q-QfXtniZ9-17410481200728658588/com/zarbosoft/semicompiled/Main.class
Last modified Jun 2, 2024; size 283 bytes
MD5 checksum e225895fe436de51afd800b49cd85586
class com.zarbosoft.semicompiled.Main
minor version: 0
major version: 52
flags: (0x0020) ACC_SUPER
this_class: #4 // com/zarbosoft/semicompiled/Main
super_class: #5 // java/lang/Object
interfaces: 0, fields: 0, methods: 2, attributes: 0
Constant pool:
#1 = Methodref #5.#10 // java/lang/Object."<init>":()V
#2 = Methodref #11.#12 // java/lang/Float.valueOf:(F)Ljava/lang/Float;
#3 = Methodref #11.#13 // java/lang/Float.floatValue:()F
#4 = Class #14 // com/zarbosoft/semicompiled/Main
#5 = Class #15 // java/lang/Object
#6 = Utf8 <init>
#7 = Utf8 ()V
#8 = Utf8 Code
#9 = Utf8 myMain
#10 = NameAndType #6:#7 // "<init>":()V
#11 = Class #16 // java/lang/Float
#12 = NameAndType #17:#18 // valueOf:(F)Ljava/lang/Float;
#13 = NameAndType #19:#20 // floatValue:()F
#14 = Utf8 com/zarbosoft/semicompiled/Main
#15 = Utf8 java/lang/Object
#16 = Utf8 java/lang/Float
#17 = Utf8 valueOf
#18 = Utf8 (F)Ljava/lang/Float;
#19 = Utf8 floatValue
#20 = Utf8 ()F
{
com.zarbosoft.semicompiled.Main();
descriptor: ()V
flags: (0x0000)
Code:
stack=1, locals=1, args_size=1
0: aload_0
1: invokespecial #1 // Method java/lang/Object."<init>":()V
4: return
public static void myMain();
descriptor: ()V
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=1, locals=1, args_size=0
0: fconst_2
1: invokestatic #2 // Method java/lang/Float.valueOf:(F)Ljava/lang/Float;
4: invokevirtual #3 // Method java/lang/Float.floatValue:()F
7: fstore_0
8: 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 MainDump 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/Main", null, "java/lang/Object", null);
{
methodVisitor = classWriter.visitMethod(0, "<init>", "()V", null, null);
methodVisitor.visitCode();
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
methodVisitor.visitInsn(RETURN);
methodVisitor.visitMaxs(1, 1);
methodVisitor.visitEnd();
}
{
methodVisitor = classWriter.visitMethod(ACC_PUBLIC | ACC_STATIC, "myMain", "()V", null, null);
methodVisitor.visitCode();
methodVisitor.visitInsn(FCONST_2);
methodVisitor.visitMethodInsn(
INVOKESTATIC, "java/lang/Float", "valueOf", "(F)Ljava/lang/Float;", false);
methodVisitor.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Float", "floatValue", "()F", false);
methodVisitor.visitVarInsn(FSTORE, 0);
methodVisitor.visitInsn(RETURN);
methodVisitor.visitMaxs(1, 1);
methodVisitor.visitEnd();
}
classWriter.visitEnd();
return classWriter.toByteArray();
}
}
Classfile /tmp/semicompiled-4IeGaY2q-QfXtniZ9-17410481200728658588/com/zarbosoft/semicompiled/Main.class
Last modified Jun 2, 2024; size 470 bytes
MD5 checksum 150e6f6b6ba72829884e6048b74cd8d8
Compiled from "Main.java"
class com.zarbosoft.semicompiled.Main
minor version: 0
major version: 52
flags: (0x0020) ACC_SUPER
this_class: #4 // com/zarbosoft/semicompiled/Main
super_class: #5 // java/lang/Object
interfaces: 0, fields: 0, methods: 2, attributes: 1
Constant pool:
#1 = Methodref #5.#18 // java/lang/Object."<init>":()V
#2 = Methodref #19.#20 // java/lang/Float.valueOf:(F)Ljava/lang/Float;
#3 = Methodref #19.#21 // java/lang/Float.floatValue:()F
#4 = Class #22 // com/zarbosoft/semicompiled/Main
#5 = Class #23 // java/lang/Object
#6 = Utf8 <init>
#7 = Utf8 ()V
#8 = Utf8 Code
#9 = Utf8 LineNumberTable
#10 = Utf8 LocalVariableTable
#11 = Utf8 this
#12 = Utf8 Lcom/zarbosoft/semicompiled/Main;
#13 = Utf8 myMain
#14 = Utf8 x
#15 = Utf8 F
#16 = Utf8 SourceFile
#17 = Utf8 Main.java
#18 = NameAndType #6:#7 // "<init>":()V
#19 = Class #24 // java/lang/Float
#20 = NameAndType #25:#26 // valueOf:(F)Ljava/lang/Float;
#21 = NameAndType #27:#28 // floatValue:()F
#22 = Utf8 com/zarbosoft/semicompiled/Main
#23 = Utf8 java/lang/Object
#24 = Utf8 java/lang/Float
#25 = Utf8 valueOf
#26 = Utf8 (F)Ljava/lang/Float;
#27 = Utf8 floatValue
#28 = Utf8 ()F
{
com.zarbosoft.semicompiled.Main();
descriptor: ()V
flags: (0x0000)
Code:
stack=1, locals=1, args_size=1
0: aload_0
1: invokespecial #1 // Method java/lang/Object."<init>":()V
4: return
LineNumberTable:
line 5: 0
LocalVariableTable:
Start Length Slot Name Signature
0 5 0 this Lcom/zarbosoft/semicompiled/Main;
public static void myMain();
descriptor: ()V
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=1, locals=1, args_size=0
0: fconst_2
1: invokestatic #2 // Method java/lang/Float.valueOf:(F)Ljava/lang/Float;
4: invokevirtual #3 // Method java/lang/Float.floatValue:()F
7: fstore_0
8: return
LineNumberTable:
line 7: 0
line 8: 8
LocalVariableTable:
Start Length Slot Name Signature
8 1 0 x F
}
SourceFile: "Main.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 MainDump 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/Main", null, "java/lang/Object", null);
classWriter.visitSource("Main.java", null);
{
methodVisitor = classWriter.visitMethod(0, "<init>", "()V", null, null);
methodVisitor.visitCode();
Label label0 = new Label();
methodVisitor.visitLabel(label0);
methodVisitor.visitLineNumber(5, label0);
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
methodVisitor.visitInsn(RETURN);
Label label1 = new Label();
methodVisitor.visitLabel(label1);
methodVisitor.visitLocalVariable(
"this", "Lcom/zarbosoft/semicompiled/Main;", null, label0, label1, 0);
methodVisitor.visitMaxs(1, 1);
methodVisitor.visitEnd();
}
{
methodVisitor = classWriter.visitMethod(ACC_PUBLIC | ACC_STATIC, "myMain", "()V", null, null);
methodVisitor.visitCode();
Label label0 = new Label();
methodVisitor.visitLabel(label0);
methodVisitor.visitLineNumber(7, label0);
methodVisitor.visitInsn(FCONST_2);
methodVisitor.visitMethodInsn(
INVOKESTATIC, "java/lang/Float", "valueOf", "(F)Ljava/lang/Float;", false);
methodVisitor.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Float", "floatValue", "()F", false);
methodVisitor.visitVarInsn(FSTORE, 0);
Label label1 = new Label();
methodVisitor.visitLabel(label1);
methodVisitor.visitLineNumber(8, label1);
methodVisitor.visitInsn(RETURN);
Label label2 = new Label();
methodVisitor.visitLabel(label2);
methodVisitor.visitLocalVariable("x", "F", null, label1, label2, 0);
methodVisitor.visitMaxs(1, 1);
methodVisitor.visitEnd();
}
classWriter.visitEnd();
return classWriter.toByteArray();
}
}
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