http://www.minidev.net/: Java reflect give poor performance on getter setter an constructor calls, accessors-smart use ASM to speed up those calls. (Chemouni Uriel)
  • Uriel Chemouni 
public class net.minidev.asm.ConvertDate$StringCmpNS implements java.util.Comparator<java.lang.String>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: net.minidev.asm.ConvertDate$StringCmpNS
  super_class: java.lang.Object
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // net.minidev.asm.ConvertDate$StringCmpNS this
         0: .line 19
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // net.minidev.asm.ConvertDate$StringCmpNS this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lnet/minidev/asm/ConvertDate$StringCmpNS;

  public int compare(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // net.minidev.asm.ConvertDate$StringCmpNS this
        start local 1 // java.lang.String o1
        start local 2 // java.lang.String o2
         0: .line 22
            aload 1 /* o1 */
            aload 2 /* o2 */
            invokevirtual java.lang.String.compareToIgnoreCase:(Ljava/lang/String;)I
            ireturn
        end local 2 // java.lang.String o2
        end local 1 // java.lang.String o1
        end local 0 // net.minidev.asm.ConvertDate$StringCmpNS this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lnet/minidev/asm/ConvertDate$StringCmpNS;
            0    1     1    o1  Ljava/lang/String;
            0    1     2    o2  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      o1    
      o2    

  public int compare(java.lang.Object, java.lang.Object);
    descriptor: (Ljava/lang/Object;Ljava/lang/Object;)I
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=3, locals=3, args_size=3
         0: .line 1
            aload 0
            aload 1
            checkcast java.lang.String
            aload 2
            checkcast java.lang.String
            invokevirtual net.minidev.asm.ConvertDate$StringCmpNS.compare:(Ljava/lang/String;Ljava/lang/String;)I
            ireturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Ljava/lang/Object;Ljava/util/Comparator<Ljava/lang/String;>;
SourceFile: "ConvertDate.java"
NestHost: net.minidev.asm.ConvertDate
InnerClasses:
  public StringCmpNS = net.minidev.asm.ConvertDate$StringCmpNS of net.minidev.asm.ConvertDate