http://netty.io/netty-all/: Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients. (The Netty Project) 
class io.netty.util.ByteProcessor$3 implements io.netty.util.ByteProcessor
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: io.netty.util.ByteProcessor$3
  super_class: java.lang.Object
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.util.ByteProcessor$3 this
         0: .line 126
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // io.netty.util.ByteProcessor$3 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/util/ByteProcessor$3;

  public boolean process(byte);
    descriptor: (B)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // io.netty.util.ByteProcessor$3 this
        start local 1 // byte value
         0: .line 129
            iload 1 /* value */
            bipush 32
            if_icmpeq 1
            iload 1 /* value */
            bipush 9
            if_icmpeq 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 1 // byte value
        end local 0 // io.netty.util.ByteProcessor$3 this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0   this  Lio/netty/util/ByteProcessor$3;
            0    2     1  value  B
    MethodParameters:
       Name  Flags
      value  
}
SourceFile: "ByteProcessor.java"
EnclosingMethod: io.netty.util.ByteProcessor
NestHost: io.netty.util.ByteProcessor
InnerClasses:
  io.netty.util.ByteProcessor$3