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) 
public abstract class io.netty.util.ResourceLeakDetectorFactory
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: io.netty.util.ResourceLeakDetectorFactory
  super_class: java.lang.Object
{
  private static final io.netty.util.internal.logging.InternalLogger logger;
    descriptor: Lio/netty/util/internal/logging/InternalLogger;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static volatile io.netty.util.ResourceLeakDetectorFactory factoryInstance;
    descriptor: Lio/netty/util/ResourceLeakDetectorFactory;
    flags: (0x004a) ACC_PRIVATE, ACC_STATIC, ACC_VOLATILE

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 33
            ldc Lio/netty/util/ResourceLeakDetectorFactory;
            invokestatic io.netty.util.internal.logging.InternalLoggerFactory.getInstance:(Ljava/lang/Class;)Lio/netty/util/internal/logging/InternalLogger;
            putstatic io.netty.util.ResourceLeakDetectorFactory.logger:Lio/netty/util/internal/logging/InternalLogger;
         1: .line 35
            new io.netty.util.ResourceLeakDetectorFactory$DefaultResourceLeakDetectorFactory
            dup
            invokespecial io.netty.util.ResourceLeakDetectorFactory$DefaultResourceLeakDetectorFactory.<init>:()V
            putstatic io.netty.util.ResourceLeakDetectorFactory.factoryInstance:Lio/netty/util/ResourceLeakDetectorFactory;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.util.ResourceLeakDetectorFactory this
         0: .line 32
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // io.netty.util.ResourceLeakDetectorFactory this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/util/ResourceLeakDetectorFactory;

  public static io.netty.util.ResourceLeakDetectorFactory instance();
    descriptor: ()Lio/netty/util/ResourceLeakDetectorFactory;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 43
            getstatic io.netty.util.ResourceLeakDetectorFactory.factoryInstance:Lio/netty/util/ResourceLeakDetectorFactory;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public static void setResourceLeakDetectorFactory(io.netty.util.ResourceLeakDetectorFactory);
    descriptor: (Lio/netty/util/ResourceLeakDetectorFactory;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // io.netty.util.ResourceLeakDetectorFactory factory
         0: .line 54
            aload 0 /* factory */
            ldc "factory"
            invokestatic io.netty.util.internal.ObjectUtil.checkNotNull:(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;
            checkcast io.netty.util.ResourceLeakDetectorFactory
            putstatic io.netty.util.ResourceLeakDetectorFactory.factoryInstance:Lio/netty/util/ResourceLeakDetectorFactory;
         1: .line 55
            return
        end local 0 // io.netty.util.ResourceLeakDetectorFactory factory
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    2     0  factory  Lio/netty/util/ResourceLeakDetectorFactory;
    MethodParameters:
         Name  Flags
      factory  

  public final <T> io.netty.util.ResourceLeakDetector<T> newResourceLeakDetector(java.lang.Class<T>);
    descriptor: (Ljava/lang/Class;)Lio/netty/util/ResourceLeakDetector;
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // io.netty.util.ResourceLeakDetectorFactory this
        start local 1 // java.lang.Class resource
         0: .line 65
            aload 0 /* this */
            aload 1 /* resource */
            sipush 128
            invokevirtual io.netty.util.ResourceLeakDetectorFactory.newResourceLeakDetector:(Ljava/lang/Class;I)Lio/netty/util/ResourceLeakDetector;
            areturn
        end local 1 // java.lang.Class resource
        end local 0 // io.netty.util.ResourceLeakDetectorFactory this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0      this  Lio/netty/util/ResourceLeakDetectorFactory;
            0    1     1  resource  Ljava/lang/Class<TT;>;
    Signature: <T:Ljava/lang/Object;>(Ljava/lang/Class<TT;>;)Lio/netty/util/ResourceLeakDetector<TT;>;
    MethodParameters:
          Name  Flags
      resource  

  public abstract <T> io.netty.util.ResourceLeakDetector<T> newResourceLeakDetector(java.lang.Class<T>, int, long);
    descriptor: (Ljava/lang/Class;IJ)Lio/netty/util/ResourceLeakDetector;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: <T:Ljava/lang/Object;>(Ljava/lang/Class<TT;>;IJ)Lio/netty/util/ResourceLeakDetector<TT;>;
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()
    MethodParameters:
                  Name  Flags
      resource          
      samplingInterval  
      maxActive         

  public <T> io.netty.util.ResourceLeakDetector<T> newResourceLeakDetector(java.lang.Class<T>, int);
    descriptor: (Ljava/lang/Class;I)Lio/netty/util/ResourceLeakDetector;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=3
        start local 0 // io.netty.util.ResourceLeakDetectorFactory this
        start local 1 // java.lang.Class resource
        start local 2 // int samplingInterval
         0: .line 93
            aload 0 /* this */
            aload 1 /* resource */
            sipush 128
            ldc 9223372036854775807
            invokevirtual io.netty.util.ResourceLeakDetectorFactory.newResourceLeakDetector:(Ljava/lang/Class;IJ)Lio/netty/util/ResourceLeakDetector;
            areturn
        end local 2 // int samplingInterval
        end local 1 // java.lang.Class resource
        end local 0 // io.netty.util.ResourceLeakDetectorFactory this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    1     0              this  Lio/netty/util/ResourceLeakDetectorFactory;
            0    1     1          resource  Ljava/lang/Class<TT;>;
            0    1     2  samplingInterval  I
    Signature: <T:Ljava/lang/Object;>(Ljava/lang/Class<TT;>;I)Lio/netty/util/ResourceLeakDetector<TT;>;
    MethodParameters:
                  Name  Flags
      resource          
      samplingInterval  
}
SourceFile: "ResourceLeakDetectorFactory.java"
NestMembers:
  io.netty.util.ResourceLeakDetectorFactory$DefaultResourceLeakDetectorFactory  io.netty.util.ResourceLeakDetectorFactory$DefaultResourceLeakDetectorFactory$1
InnerClasses:
  private final DefaultResourceLeakDetectorFactory = io.netty.util.ResourceLeakDetectorFactory$DefaultResourceLeakDetectorFactory of io.netty.util.ResourceLeakDetectorFactory