http://www.jboss.org/undertow-parent/undertow-core: Undertow (JBoss by Red Hat) 
public class io.undertow.conduits.ReadDataStreamSourceConduit extends org.xnio.conduits.AbstractStreamSourceConduit<org.xnio.conduits.StreamSourceConduit>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: io.undertow.conduits.ReadDataStreamSourceConduit
  super_class: org.xnio.conduits.AbstractStreamSourceConduit
{
  private final io.undertow.server.AbstractServerConnection connection;
    descriptor: Lio/undertow/server/AbstractServerConnection;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(org.xnio.conduits.StreamSourceConduit, io.undertow.server.AbstractServerConnection);
    descriptor: (Lorg/xnio/conduits/StreamSourceConduit;Lio/undertow/server/AbstractServerConnection;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
        start local 1 // org.xnio.conduits.StreamSourceConduit next
        start local 2 // io.undertow.server.AbstractServerConnection connection
         0: .line 43
            aload 0 /* this */
            aload 1 /* next */
            invokespecial org.xnio.conduits.AbstractStreamSourceConduit.<init>:(Lorg/xnio/conduits/StreamSourceConduit;)V
         1: .line 44
            aload 0 /* this */
            aload 2 /* connection */
            putfield io.undertow.conduits.ReadDataStreamSourceConduit.connection:Lio/undertow/server/AbstractServerConnection;
         2: .line 45
            return
        end local 2 // io.undertow.server.AbstractServerConnection connection
        end local 1 // org.xnio.conduits.StreamSourceConduit next
        end local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0        this  Lio/undertow/conduits/ReadDataStreamSourceConduit;
            0    3     1        next  Lorg/xnio/conduits/StreamSourceConduit;
            0    3     2  connection  Lio/undertow/server/AbstractServerConnection;
    MethodParameters:
            Name  Flags
      next        final
      connection  final

  public long transferTo(long, long, java.nio.channels.FileChannel);
    descriptor: (JJLjava/nio/channels/FileChannel;)J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=6, args_size=4
        start local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
        start local 1 // long position
        start local 3 // long count
        start local 5 // java.nio.channels.FileChannel target
         0: .line 48
            aload 5 /* target */
            new org.xnio.conduits.ConduitReadableByteChannel
            dup
            aload 0 /* this */
            invokespecial org.xnio.conduits.ConduitReadableByteChannel.<init>:(Lorg/xnio/conduits/StreamSourceConduit;)V
            lload 1 /* position */
            lload 3 /* count */
            invokevirtual java.nio.channels.FileChannel.transferFrom:(Ljava/nio/channels/ReadableByteChannel;JJ)J
            lreturn
        end local 5 // java.nio.channels.FileChannel target
        end local 3 // long count
        end local 1 // long position
        end local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0      this  Lio/undertow/conduits/ReadDataStreamSourceConduit;
            0    1     1  position  J
            0    1     3     count  J
            0    1     5    target  Ljava/nio/channels/FileChannel;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
          Name  Flags
      position  final
      count     final
      target    final

  public long transferTo(long, java.nio.ByteBuffer, org.xnio.channels.StreamSinkChannel);
    descriptor: (JLjava/nio/ByteBuffer;Lorg/xnio/channels/StreamSinkChannel;)J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=5, args_size=4
        start local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
        start local 1 // long count
        start local 3 // java.nio.ByteBuffer throughBuffer
        start local 4 // org.xnio.channels.StreamSinkChannel target
         0: .line 52
            new org.xnio.conduits.ConduitReadableByteChannel
            dup
            aload 0 /* this */
            invokespecial org.xnio.conduits.ConduitReadableByteChannel.<init>:(Lorg/xnio/conduits/StreamSourceConduit;)V
            lload 1 /* count */
            aload 3 /* throughBuffer */
            aload 4 /* target */
            invokestatic org.xnio.IoUtils.transfer:(Ljava/nio/channels/ReadableByteChannel;JLjava/nio/ByteBuffer;Ljava/nio/channels/WritableByteChannel;)J
            lreturn
        end local 4 // org.xnio.channels.StreamSinkChannel target
        end local 3 // java.nio.ByteBuffer throughBuffer
        end local 1 // long count
        end local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    1     0           this  Lio/undertow/conduits/ReadDataStreamSourceConduit;
            0    1     1          count  J
            0    1     3  throughBuffer  Ljava/nio/ByteBuffer;
            0    1     4         target  Lorg/xnio/channels/StreamSinkChannel;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
               Name  Flags
      count          final
      throughBuffer  final
      target         final

  public int read(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=5, args_size=2
        start local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
        start local 1 // java.nio.ByteBuffer dst
         0: .line 57
            aload 0 /* this */
            getfield io.undertow.conduits.ReadDataStreamSourceConduit.connection:Lio/undertow/server/AbstractServerConnection;
            invokevirtual io.undertow.server.AbstractServerConnection.getExtraBytes:()Lio/undertow/connector/PooledByteBuffer;
            astore 2 /* eb */
        start local 2 // io.undertow.connector.PooledByteBuffer eb
         1: .line 58
            aload 2 /* eb */
            ifnull 8
         2: .line 59
            aload 2 /* eb */
            invokeinterface io.undertow.connector.PooledByteBuffer.getBuffer:()Ljava/nio/ByteBuffer;
            astore 3 /* buffer */
        start local 3 // java.nio.ByteBuffer buffer
         3: .line 60
            aload 1 /* dst */
            aload 3 /* buffer */
            invokestatic org.xnio.Buffers.copy:(Ljava/nio/ByteBuffer;Ljava/nio/ByteBuffer;)I
            istore 4 /* result */
        start local 4 // int result
         4: .line 61
            aload 3 /* buffer */
            invokevirtual java.nio.ByteBuffer.hasRemaining:()Z
            ifne 7
         5: .line 62
            aload 2 /* eb */
            invokeinterface io.undertow.connector.PooledByteBuffer.close:()V
         6: .line 63
            aload 0 /* this */
            getfield io.undertow.conduits.ReadDataStreamSourceConduit.connection:Lio/undertow/server/AbstractServerConnection;
            aconst_null
            invokevirtual io.undertow.server.AbstractServerConnection.setExtraBytes:(Lio/undertow/connector/PooledByteBuffer;)V
         7: .line 65
      StackMap locals: io.undertow.connector.PooledByteBuffer java.nio.ByteBuffer int
      StackMap stack:
            iload 4 /* result */
            ireturn
        end local 4 // int result
        end local 3 // java.nio.ByteBuffer buffer
         8: .line 67
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* dst */
            invokespecial org.xnio.conduits.AbstractStreamSourceConduit.read:(Ljava/nio/ByteBuffer;)I
            ireturn
        end local 2 // io.undertow.connector.PooledByteBuffer eb
        end local 1 // java.nio.ByteBuffer dst
        end local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    9     0    this  Lio/undertow/conduits/ReadDataStreamSourceConduit;
            0    9     1     dst  Ljava/nio/ByteBuffer;
            1    9     2      eb  Lio/undertow/connector/PooledByteBuffer;
            3    8     3  buffer  Ljava/nio/ByteBuffer;
            4    8     4  result  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      dst   final

  public long read(java.nio.ByteBuffer[], int, int);
    descriptor: ([Ljava/nio/ByteBuffer;II)J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=7, args_size=4
        start local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
        start local 1 // java.nio.ByteBuffer[] dsts
        start local 2 // int offs
        start local 3 // int len
         0: .line 73
            aload 0 /* this */
            getfield io.undertow.conduits.ReadDataStreamSourceConduit.connection:Lio/undertow/server/AbstractServerConnection;
            invokevirtual io.undertow.server.AbstractServerConnection.getExtraBytes:()Lio/undertow/connector/PooledByteBuffer;
            astore 4 /* eb */
        start local 4 // io.undertow.connector.PooledByteBuffer eb
         1: .line 74
            aload 4 /* eb */
            ifnull 8
         2: .line 75
            aload 4 /* eb */
            invokeinterface io.undertow.connector.PooledByteBuffer.getBuffer:()Ljava/nio/ByteBuffer;
            astore 5 /* buffer */
        start local 5 // java.nio.ByteBuffer buffer
         3: .line 76
            aload 1 /* dsts */
            iload 2 /* offs */
            iload 3 /* len */
            aload 5 /* buffer */
            invokestatic org.xnio.Buffers.copy:([Ljava/nio/ByteBuffer;IILjava/nio/ByteBuffer;)I
            istore 6 /* result */
        start local 6 // int result
         4: .line 77
            aload 5 /* buffer */
            invokevirtual java.nio.ByteBuffer.hasRemaining:()Z
            ifne 7
         5: .line 78
            aload 4 /* eb */
            invokeinterface io.undertow.connector.PooledByteBuffer.close:()V
         6: .line 79
            aload 0 /* this */
            getfield io.undertow.conduits.ReadDataStreamSourceConduit.connection:Lio/undertow/server/AbstractServerConnection;
            aconst_null
            invokevirtual io.undertow.server.AbstractServerConnection.setExtraBytes:(Lio/undertow/connector/PooledByteBuffer;)V
         7: .line 81
      StackMap locals: io.undertow.connector.PooledByteBuffer java.nio.ByteBuffer int
      StackMap stack:
            iload 6 /* result */
            i2l
            lreturn
        end local 6 // int result
        end local 5 // java.nio.ByteBuffer buffer
         8: .line 83
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* dsts */
            iload 2 /* offs */
            iload 3 /* len */
            invokespecial org.xnio.conduits.AbstractStreamSourceConduit.read:([Ljava/nio/ByteBuffer;II)J
            lreturn
        end local 4 // io.undertow.connector.PooledByteBuffer eb
        end local 3 // int len
        end local 2 // int offs
        end local 1 // java.nio.ByteBuffer[] dsts
        end local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    9     0    this  Lio/undertow/conduits/ReadDataStreamSourceConduit;
            0    9     1    dsts  [Ljava/nio/ByteBuffer;
            0    9     2    offs  I
            0    9     3     len  I
            1    9     4      eb  Lio/undertow/connector/PooledByteBuffer;
            3    8     5  buffer  Ljava/nio/ByteBuffer;
            4    8     6  result  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      dsts  final
      offs  final
      len   final

  public void resumeReads();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
         0: .line 89
            aload 0 /* this */
            getfield io.undertow.conduits.ReadDataStreamSourceConduit.connection:Lio/undertow/server/AbstractServerConnection;
            invokevirtual io.undertow.server.AbstractServerConnection.getExtraBytes:()Lio/undertow/connector/PooledByteBuffer;
            ifnull 3
         1: .line 90
            aload 0 /* this */
            invokevirtual io.undertow.conduits.ReadDataStreamSourceConduit.wakeupReads:()V
         2: .line 91
            goto 4
         3: .line 92
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokespecial org.xnio.conduits.AbstractStreamSourceConduit.resumeReads:()V
         4: .line 94
      StackMap locals:
      StackMap stack:
            return
        end local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lio/undertow/conduits/ReadDataStreamSourceConduit;

  public void awaitReadable();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
         0: .line 98
            aload 0 /* this */
            getfield io.undertow.conduits.ReadDataStreamSourceConduit.connection:Lio/undertow/server/AbstractServerConnection;
            invokevirtual io.undertow.server.AbstractServerConnection.getExtraBytes:()Lio/undertow/connector/PooledByteBuffer;
            ifnull 2
         1: .line 99
            return
         2: .line 101
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokespecial org.xnio.conduits.AbstractStreamSourceConduit.awaitReadable:()V
         3: .line 102
            return
        end local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lio/undertow/conduits/ReadDataStreamSourceConduit;
    Exceptions:
      throws java.io.IOException

  public void awaitReadable(long, java.util.concurrent.TimeUnit);
    descriptor: (JLjava/util/concurrent/TimeUnit;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=3
        start local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
        start local 1 // long time
        start local 3 // java.util.concurrent.TimeUnit timeUnit
         0: .line 106
            aload 0 /* this */
            getfield io.undertow.conduits.ReadDataStreamSourceConduit.connection:Lio/undertow/server/AbstractServerConnection;
            invokevirtual io.undertow.server.AbstractServerConnection.getExtraBytes:()Lio/undertow/connector/PooledByteBuffer;
            ifnull 2
         1: .line 107
            return
         2: .line 109
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            lload 1 /* time */
            aload 3 /* timeUnit */
            invokespecial org.xnio.conduits.AbstractStreamSourceConduit.awaitReadable:(JLjava/util/concurrent/TimeUnit;)V
         3: .line 110
            return
        end local 3 // java.util.concurrent.TimeUnit timeUnit
        end local 1 // long time
        end local 0 // io.undertow.conduits.ReadDataStreamSourceConduit this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    4     0      this  Lio/undertow/conduits/ReadDataStreamSourceConduit;
            0    4     1      time  J
            0    4     3  timeUnit  Ljava/util/concurrent/TimeUnit;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
          Name  Flags
      time      final
      timeUnit  final
}
Signature: Lorg/xnio/conduits/AbstractStreamSourceConduit<Lorg/xnio/conduits/StreamSourceConduit;>;
SourceFile: "ReadDataStreamSourceConduit.java"