http://www.jboss.org/undertow-parent/undertow-core: Undertow (JBoss by Red Hat) 
public class io.undertow.conduits.DebuggingStreamSinkConduit extends org.xnio.conduits.AbstractStreamSinkConduit<org.xnio.conduits.StreamSinkConduit>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: io.undertow.conduits.DebuggingStreamSinkConduit
  super_class: org.xnio.conduits.AbstractStreamSinkConduit
{
  private static final java.util.List<byte[]> data;
    descriptor: Ljava/util/List;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    Signature: Ljava/util/List<[B>;

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 44
            new java.util.concurrent.CopyOnWriteArrayList
            dup
            invokespecial java.util.concurrent.CopyOnWriteArrayList.<init>:()V
            putstatic io.undertow.conduits.DebuggingStreamSinkConduit.data:Ljava/util/List;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(org.xnio.conduits.StreamSinkConduit);
    descriptor: (Lorg/xnio/conduits/StreamSinkConduit;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
        start local 1 // org.xnio.conduits.StreamSinkConduit next
         0: .line 52
            aload 0 /* this */
            aload 1 /* next */
            invokespecial org.xnio.conduits.AbstractStreamSinkConduit.<init>:(Lorg/xnio/conduits/StreamSinkConduit;)V
         1: .line 53
            return
        end local 1 // org.xnio.conduits.StreamSinkConduit next
        end local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lio/undertow/conduits/DebuggingStreamSinkConduit;
            0    2     1  next  Lorg/xnio/conduits/StreamSinkConduit;
    MethodParameters:
      Name  Flags
      next  

  public int write(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=6, args_size=2
        start local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
        start local 1 // java.nio.ByteBuffer src
         0: .line 57
            aload 1 /* src */
            invokevirtual java.nio.ByteBuffer.position:()I
            istore 2 /* pos */
        start local 2 // int pos
         1: .line 58
            aload 0 /* this */
            aload 1 /* src */
            invokespecial org.xnio.conduits.AbstractStreamSinkConduit.write:(Ljava/nio/ByteBuffer;)I
            istore 3 /* res */
        start local 3 // int res
         2: .line 59
            iload 3 /* res */
            ifle 10
         3: .line 60
            iload 3 /* res */
            newarray 8
            astore 4 /* d */
        start local 4 // byte[] d
         4: .line 61
            iconst_0
            istore 5 /* i */
        start local 5 // int i
         5: goto 8
         6: .line 62
      StackMap locals: io.undertow.conduits.DebuggingStreamSinkConduit java.nio.ByteBuffer int int byte[] int
      StackMap stack:
            aload 4 /* d */
            iload 5 /* i */
            aload 1 /* src */
            iload 5 /* i */
            iload 2 /* pos */
            iadd
            invokevirtual java.nio.ByteBuffer.get:(I)B
            bastore
         7: .line 61
            iinc 5 /* i */ 1
      StackMap locals:
      StackMap stack:
         8: iload 5 /* i */
            iload 3 /* res */
            if_icmplt 6
        end local 5 // int i
         9: .line 64
            getstatic io.undertow.conduits.DebuggingStreamSinkConduit.data:Ljava/util/List;
            aload 4 /* d */
            invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
            pop
        end local 4 // byte[] d
        10: .line 66
      StackMap locals:
      StackMap stack:
            iload 3 /* res */
            ireturn
        end local 3 // int res
        end local 2 // int pos
        end local 1 // java.nio.ByteBuffer src
        end local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   11     0  this  Lio/undertow/conduits/DebuggingStreamSinkConduit;
            0   11     1   src  Ljava/nio/ByteBuffer;
            1   11     2   pos  I
            2   11     3   res  I
            4   10     4     d  [B
            5    9     5     i  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      src   

  public long write(java.nio.ByteBuffer[], int, int);
    descriptor: ([Ljava/nio/ByteBuffer;II)J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=5, args_size=4
        start local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
        start local 1 // java.nio.ByteBuffer[] dsts
        start local 2 // int offs
        start local 3 // int len
         0: .line 71
            iload 2 /* offs */
            istore 4 /* i */
        start local 4 // int i
         1: goto 5
         2: .line 72
      StackMap locals: int
      StackMap stack:
            aload 1 /* dsts */
            iload 4 /* i */
            aaload
            invokevirtual java.nio.ByteBuffer.hasRemaining:()Z
            ifeq 4
         3: .line 73
            aload 0 /* this */
            aload 1 /* dsts */
            iload 4 /* i */
            aaload
            invokevirtual io.undertow.conduits.DebuggingStreamSinkConduit.write:(Ljava/nio/ByteBuffer;)I
            i2l
            lreturn
         4: .line 71
      StackMap locals:
      StackMap stack:
            iinc 4 /* i */ 1
      StackMap locals:
      StackMap stack:
         5: iload 4 /* i */
            iload 3 /* len */
            if_icmplt 2
        end local 4 // int i
         6: .line 76
            lconst_0
            lreturn
        end local 3 // int len
        end local 2 // int offs
        end local 1 // java.nio.ByteBuffer[] dsts
        end local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0  this  Lio/undertow/conduits/DebuggingStreamSinkConduit;
            0    7     1  dsts  [Ljava/nio/ByteBuffer;
            0    7     2  offs  I
            0    7     3   len  I
            1    6     4     i  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      dsts  
      offs  
      len   

  public long transferFrom(java.nio.channels.FileChannel, long, long);
    descriptor: (Ljava/nio/channels/FileChannel;JJ)J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=8, locals=6, args_size=4
        start local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
        start local 1 // java.nio.channels.FileChannel src
        start local 2 // long position
        start local 4 // long count
         0: .line 81
            aload 1 /* src */
            lload 2 /* position */
            lload 4 /* count */
            new org.xnio.conduits.ConduitWritableByteChannel
            dup
            aload 0 /* this */
            invokespecial org.xnio.conduits.ConduitWritableByteChannel.<init>:(Lorg/xnio/conduits/StreamSinkConduit;)V
            invokevirtual java.nio.channels.FileChannel.transferTo:(JJLjava/nio/channels/WritableByteChannel;)J
            lreturn
        end local 4 // long count
        end local 2 // long position
        end local 1 // java.nio.channels.FileChannel src
        end local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0      this  Lio/undertow/conduits/DebuggingStreamSinkConduit;
            0    1     1       src  Ljava/nio/channels/FileChannel;
            0    1     2  position  J
            0    1     4     count  J
    Exceptions:
      throws java.io.IOException
    MethodParameters:
          Name  Flags
      src       final
      position  final
      count     final

  public long transferFrom(org.xnio.channels.StreamSourceChannel, long, java.nio.ByteBuffer);
    descriptor: (Lorg/xnio/channels/StreamSourceChannel;JLjava/nio/ByteBuffer;)J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=7, locals=5, args_size=4
        start local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
        start local 1 // org.xnio.channels.StreamSourceChannel source
        start local 2 // long count
        start local 4 // java.nio.ByteBuffer throughBuffer
         0: .line 86
            aload 1 /* source */
            lload 2 /* count */
            aload 4 /* throughBuffer */
            new org.xnio.conduits.ConduitWritableByteChannel
            dup
            aload 0 /* this */
            invokespecial org.xnio.conduits.ConduitWritableByteChannel.<init>:(Lorg/xnio/conduits/StreamSinkConduit;)V
            invokestatic org.xnio.IoUtils.transfer:(Ljava/nio/channels/ReadableByteChannel;JLjava/nio/ByteBuffer;Ljava/nio/channels/WritableByteChannel;)J
            lreturn
        end local 4 // java.nio.ByteBuffer throughBuffer
        end local 2 // long count
        end local 1 // org.xnio.channels.StreamSourceChannel source
        end local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    1     0           this  Lio/undertow/conduits/DebuggingStreamSinkConduit;
            0    1     1         source  Lorg/xnio/channels/StreamSourceChannel;
            0    1     2          count  J
            0    1     4  throughBuffer  Ljava/nio/ByteBuffer;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
               Name  Flags
      source         final
      count          final
      throughBuffer  final

  public int writeFinal(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
        start local 1 // java.nio.ByteBuffer src
         0: .line 91
            aload 0 /* this */
            aload 1 /* src */
            invokestatic org.xnio.conduits.Conduits.writeFinalBasic:(Lorg/xnio/conduits/StreamSinkConduit;Ljava/nio/ByteBuffer;)I
            ireturn
        end local 1 // java.nio.ByteBuffer src
        end local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/undertow/conduits/DebuggingStreamSinkConduit;
            0    1     1   src  Ljava/nio/ByteBuffer;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      src   

  public long writeFinal(java.nio.ByteBuffer[], int, int);
    descriptor: ([Ljava/nio/ByteBuffer;II)J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=4
        start local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
        start local 1 // java.nio.ByteBuffer[] srcs
        start local 2 // int offset
        start local 3 // int length
         0: .line 96
            aload 0 /* this */
            aload 1 /* srcs */
            iload 2 /* offset */
            iload 3 /* length */
            invokestatic org.xnio.conduits.Conduits.writeFinalBasic:(Lorg/xnio/conduits/StreamSinkConduit;[Ljava/nio/ByteBuffer;II)J
            lreturn
        end local 3 // int length
        end local 2 // int offset
        end local 1 // java.nio.ByteBuffer[] srcs
        end local 0 // io.undertow.conduits.DebuggingStreamSinkConduit this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0    this  Lio/undertow/conduits/DebuggingStreamSinkConduit;
            0    1     1    srcs  [Ljava/nio/ByteBuffer;
            0    1     2  offset  I
            0    1     3  length  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
        Name  Flags
      srcs    
      offset  
      length  

  public static void dump();
    descriptor: ()V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=3, args_size=0
         0: .line 101
            iconst_0
            istore 0 /* i */
        start local 0 // int i
         1: goto 11
         2: .line 102
      StackMap locals: int
      StackMap stack:
            getstatic java.lang.System.out:Ljava/io/PrintStream;
            new java.lang.StringBuilder
            dup
            ldc "Write Buffer "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            iload 0 /* i */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokevirtual java.io.PrintStream.println:(Ljava/lang/String;)V
         3: .line 103
            new java.lang.StringBuilder
            dup
            invokespecial java.lang.StringBuilder.<init>:()V
            astore 1 /* sb */
        start local 1 // java.lang.StringBuilder sb
         4: .line 105
            getstatic io.undertow.conduits.DebuggingStreamSinkConduit.data:Ljava/util/List;
            iload 0 /* i */
            invokeinterface java.util.List.get:(I)Ljava/lang/Object;
            checkcast byte[]
            invokestatic java.nio.ByteBuffer.wrap:([B)Ljava/nio/ByteBuffer;
            aload 1 /* sb */
            iconst_0
            bipush 20
            invokestatic org.xnio.Buffers.dump:(Ljava/nio/ByteBuffer;Ljava/lang/Appendable;II)V
         5: .line 106
            goto 8
      StackMap locals: int java.lang.StringBuilder
      StackMap stack: java.io.IOException
         6: astore 2 /* e */
        start local 2 // java.io.IOException e
         7: .line 107
            new java.lang.RuntimeException
            dup
            aload 2 /* e */
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 2 // java.io.IOException e
         8: .line 109
      StackMap locals:
      StackMap stack:
            getstatic java.lang.System.out:Ljava/io/PrintStream;
            aload 1 /* sb */
            invokevirtual java.io.PrintStream.println:(Ljava/lang/Object;)V
         9: .line 110
            getstatic java.lang.System.out:Ljava/io/PrintStream;
            invokevirtual java.io.PrintStream.println:()V
        end local 1 // java.lang.StringBuilder sb
        10: .line 101
            iinc 0 /* i */ 1
      StackMap locals:
      StackMap stack:
        11: iload 0 /* i */
            getstatic io.undertow.conduits.DebuggingStreamSinkConduit.data:Ljava/util/List;
            invokeinterface java.util.List.size:()I
            if_icmplt 2
        end local 0 // int i
        12: .line 113
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            1   12     0     i  I
            4   10     1    sb  Ljava/lang/StringBuilder;
            7    8     2     e  Ljava/io/IOException;
      Exception table:
        from    to  target  type
           4     5       6  Class java.io.IOException
}
Signature: Lorg/xnio/conduits/AbstractStreamSinkConduit<Lorg/xnio/conduits/StreamSinkConduit;>;
SourceFile: "DebuggingStreamSinkConduit.java"