https://github.com/cglib/cglib/cglib: cglib is a powerful, high performance and quality Code Generation Library, It is used to extend JAVA classes and implements interfaces at runtime. 
public class net.sf.cglib.core.AbstractClassGenerator$Source
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: net.sf.cglib.core.AbstractClassGenerator$Source
  super_class: java.lang.Object
{
  java.lang.String name;
    descriptor: Ljava/lang/String;
    flags: (0x0000) 

  public void <init>(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // net.sf.cglib.core.AbstractClassGenerator$Source this
        start local 1 // java.lang.String name
         0: .line 135
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 136
            aload 0 /* this */
            aload 1 /* name */
            putfield net.sf.cglib.core.AbstractClassGenerator$Source.name:Ljava/lang/String;
         2: .line 137
            return
        end local 1 // java.lang.String name
        end local 0 // net.sf.cglib.core.AbstractClassGenerator$Source this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lnet/sf/cglib/core/AbstractClassGenerator$Source;
            0    3     1  name  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      name  
}
SourceFile: "AbstractClassGenerator.java"
NestHost: net.sf.cglib.core.AbstractClassGenerator
InnerClasses:
  protected Source = net.sf.cglib.core.AbstractClassGenerator$Source of net.sf.cglib.core.AbstractClassGenerator