http://www.jcraft.com/jsch/: JSch is a pure Java implementation of SSH2 (JCraft,Inc.) 
public class com.jcraft.jsch.IO
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.jcraft.jsch.IO
  super_class: java.lang.Object
{
  java.io.InputStream in;
    descriptor: Ljava/io/InputStream;
    flags: (0x0000) 

  java.io.OutputStream out;
    descriptor: Ljava/io/OutputStream;
    flags: (0x0000) 

  java.io.OutputStream out_ext;
    descriptor: Ljava/io/OutputStream;
    flags: (0x0000) 

  private boolean in_dontclose;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE

  private boolean out_dontclose;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE

  private boolean out_ext_dontclose;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.jcraft.jsch.IO this
         0: .line 34
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 39
            aload 0 /* this */
            iconst_0
            putfield com.jcraft.jsch.IO.in_dontclose:Z
         2: .line 40
            aload 0 /* this */
            iconst_0
            putfield com.jcraft.jsch.IO.out_dontclose:Z
         3: .line 41
            aload 0 /* this */
            iconst_0
            putfield com.jcraft.jsch.IO.out_ext_dontclose:Z
         4: .line 34
            return
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lcom/jcraft/jsch/IO;

  void setOutputStream(java.io.OutputStream);
    descriptor: (Ljava/io/OutputStream;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.jcraft.jsch.IO this
        start local 1 // java.io.OutputStream out
         0: .line 43
            aload 0 /* this */
            aload 1 /* out */
            putfield com.jcraft.jsch.IO.out:Ljava/io/OutputStream;
            return
        end local 1 // java.io.OutputStream out
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/jcraft/jsch/IO;
            0    1     1   out  Ljava/io/OutputStream;
    MethodParameters:
      Name  Flags
      out   

  void setOutputStream(java.io.OutputStream, boolean);
    descriptor: (Ljava/io/OutputStream;Z)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.jcraft.jsch.IO this
        start local 1 // java.io.OutputStream out
        start local 2 // boolean dontclose
         0: .line 45
            aload 0 /* this */
            iload 2 /* dontclose */
            putfield com.jcraft.jsch.IO.out_dontclose:Z
         1: .line 46
            aload 0 /* this */
            aload 1 /* out */
            invokevirtual com.jcraft.jsch.IO.setOutputStream:(Ljava/io/OutputStream;)V
         2: .line 47
            return
        end local 2 // boolean dontclose
        end local 1 // java.io.OutputStream out
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0       this  Lcom/jcraft/jsch/IO;
            0    3     1        out  Ljava/io/OutputStream;
            0    3     2  dontclose  Z
    MethodParameters:
           Name  Flags
      out        
      dontclose  

  void setExtOutputStream(java.io.OutputStream);
    descriptor: (Ljava/io/OutputStream;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.jcraft.jsch.IO this
        start local 1 // java.io.OutputStream out
         0: .line 48
            aload 0 /* this */
            aload 1 /* out */
            putfield com.jcraft.jsch.IO.out_ext:Ljava/io/OutputStream;
            return
        end local 1 // java.io.OutputStream out
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/jcraft/jsch/IO;
            0    1     1   out  Ljava/io/OutputStream;
    MethodParameters:
      Name  Flags
      out   

  void setExtOutputStream(java.io.OutputStream, boolean);
    descriptor: (Ljava/io/OutputStream;Z)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.jcraft.jsch.IO this
        start local 1 // java.io.OutputStream out
        start local 2 // boolean dontclose
         0: .line 50
            aload 0 /* this */
            iload 2 /* dontclose */
            putfield com.jcraft.jsch.IO.out_ext_dontclose:Z
         1: .line 51
            aload 0 /* this */
            aload 1 /* out */
            invokevirtual com.jcraft.jsch.IO.setExtOutputStream:(Ljava/io/OutputStream;)V
         2: .line 52
            return
        end local 2 // boolean dontclose
        end local 1 // java.io.OutputStream out
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0       this  Lcom/jcraft/jsch/IO;
            0    3     1        out  Ljava/io/OutputStream;
            0    3     2  dontclose  Z
    MethodParameters:
           Name  Flags
      out        
      dontclose  

  void setInputStream(java.io.InputStream);
    descriptor: (Ljava/io/InputStream;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.jcraft.jsch.IO this
        start local 1 // java.io.InputStream in
         0: .line 53
            aload 0 /* this */
            aload 1 /* in */
            putfield com.jcraft.jsch.IO.in:Ljava/io/InputStream;
            return
        end local 1 // java.io.InputStream in
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/jcraft/jsch/IO;
            0    1     1    in  Ljava/io/InputStream;
    MethodParameters:
      Name  Flags
      in    

  void setInputStream(java.io.InputStream, boolean);
    descriptor: (Ljava/io/InputStream;Z)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.jcraft.jsch.IO this
        start local 1 // java.io.InputStream in
        start local 2 // boolean dontclose
         0: .line 55
            aload 0 /* this */
            iload 2 /* dontclose */
            putfield com.jcraft.jsch.IO.in_dontclose:Z
         1: .line 56
            aload 0 /* this */
            aload 1 /* in */
            invokevirtual com.jcraft.jsch.IO.setInputStream:(Ljava/io/InputStream;)V
         2: .line 57
            return
        end local 2 // boolean dontclose
        end local 1 // java.io.InputStream in
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0       this  Lcom/jcraft/jsch/IO;
            0    3     1         in  Ljava/io/InputStream;
            0    3     2  dontclose  Z
    MethodParameters:
           Name  Flags
      in         
      dontclose  

  public void put(com.jcraft.jsch.Packet);
    descriptor: (Lcom/jcraft/jsch/Packet;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // com.jcraft.jsch.IO this
        start local 1 // com.jcraft.jsch.Packet p
         0: .line 60
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.out:Ljava/io/OutputStream;
            aload 1 /* p */
            getfield com.jcraft.jsch.Packet.buffer:Lcom/jcraft/jsch/Buffer;
            getfield com.jcraft.jsch.Buffer.buffer:[B
            iconst_0
            aload 1 /* p */
            getfield com.jcraft.jsch.Packet.buffer:Lcom/jcraft/jsch/Buffer;
            getfield com.jcraft.jsch.Buffer.index:I
            invokevirtual java.io.OutputStream.write:([BII)V
         1: .line 61
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.out:Ljava/io/OutputStream;
            invokevirtual java.io.OutputStream.flush:()V
         2: .line 62
            return
        end local 1 // com.jcraft.jsch.Packet p
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/jcraft/jsch/IO;
            0    3     1     p  Lcom/jcraft/jsch/Packet;
    Exceptions:
      throws java.io.IOException, java.net.SocketException
    MethodParameters:
      Name  Flags
      p     

  void put(byte[], int, int);
    descriptor: ([BII)V
    flags: (0x0000) 
    Code:
      stack=4, locals=4, args_size=4
        start local 0 // com.jcraft.jsch.IO this
        start local 1 // byte[] array
        start local 2 // int begin
        start local 3 // int length
         0: .line 64
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.out:Ljava/io/OutputStream;
            aload 1 /* array */
            iload 2 /* begin */
            iload 3 /* length */
            invokevirtual java.io.OutputStream.write:([BII)V
         1: .line 65
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.out:Ljava/io/OutputStream;
            invokevirtual java.io.OutputStream.flush:()V
         2: .line 66
            return
        end local 3 // int length
        end local 2 // int begin
        end local 1 // byte[] array
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lcom/jcraft/jsch/IO;
            0    3     1   array  [B
            0    3     2   begin  I
            0    3     3  length  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
        Name  Flags
      array   
      begin   
      length  

  void put_ext(byte[], int, int);
    descriptor: ([BII)V
    flags: (0x0000) 
    Code:
      stack=4, locals=4, args_size=4
        start local 0 // com.jcraft.jsch.IO this
        start local 1 // byte[] array
        start local 2 // int begin
        start local 3 // int length
         0: .line 68
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.out_ext:Ljava/io/OutputStream;
            aload 1 /* array */
            iload 2 /* begin */
            iload 3 /* length */
            invokevirtual java.io.OutputStream.write:([BII)V
         1: .line 69
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.out_ext:Ljava/io/OutputStream;
            invokevirtual java.io.OutputStream.flush:()V
         2: .line 70
            return
        end local 3 // int length
        end local 2 // int begin
        end local 1 // byte[] array
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lcom/jcraft/jsch/IO;
            0    3     1   array  [B
            0    3     2   begin  I
            0    3     3  length  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
        Name  Flags
      array   
      begin   
      length  

  int getByte();
    descriptor: ()I
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.jcraft.jsch.IO this
         0: .line 73
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.in:Ljava/io/InputStream;
            invokevirtual java.io.InputStream.read:()I
            ireturn
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/jcraft/jsch/IO;
    Exceptions:
      throws java.io.IOException

  void getByte(byte[]);
    descriptor: ([B)V
    flags: (0x0000) 
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // com.jcraft.jsch.IO this
        start local 1 // byte[] array
         0: .line 77
            aload 0 /* this */
            aload 1 /* array */
            iconst_0
            aload 1 /* array */
            arraylength
            invokevirtual com.jcraft.jsch.IO.getByte:([BII)V
         1: .line 78
            return
        end local 1 // byte[] array
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0   this  Lcom/jcraft/jsch/IO;
            0    2     1  array  [B
    Exceptions:
      throws java.io.IOException
    MethodParameters:
       Name  Flags
      array  

  void getByte(byte[], int, int);
    descriptor: ([BII)V
    flags: (0x0000) 
    Code:
      stack=4, locals=5, args_size=4
        start local 0 // com.jcraft.jsch.IO this
        start local 1 // byte[] array
        start local 2 // int begin
        start local 3 // int length
         0: .line 82
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.in:Ljava/io/InputStream;
            aload 1 /* array */
            iload 2 /* begin */
            iload 3 /* length */
            invokevirtual java.io.InputStream.read:([BII)I
            istore 4 /* completed */
        start local 4 // int completed
         1: .line 83
            iload 4 /* completed */
            ifge 3
         2: .line 84
            new java.io.IOException
            dup
            ldc "End of IO Stream Read"
            invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
            athrow
         3: .line 86
      StackMap locals: int
      StackMap stack:
            iload 2 /* begin */
            iload 4 /* completed */
            iadd
            istore 2 /* begin */
         4: .line 87
            iload 3 /* length */
            iload 4 /* completed */
            isub
            istore 3 /* length */
        end local 4 // int completed
         5: .line 89
            iload 3 /* length */
         6: .line 81
            ifgt 0
         7: .line 90
            return
        end local 3 // int length
        end local 2 // int begin
        end local 1 // byte[] array
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    8     0       this  Lcom/jcraft/jsch/IO;
            0    8     1      array  [B
            0    8     2      begin  I
            0    8     3     length  I
            1    5     4  completed  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
        Name  Flags
      array   
      begin   
      length  

  void out_close();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.jcraft.jsch.IO this
         0: .line 94
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.out:Ljava/io/OutputStream;
            ifnull 1
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.out_dontclose:Z
            ifne 1
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.out:Ljava/io/OutputStream;
            invokevirtual java.io.OutputStream.close:()V
         1: .line 95
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aconst_null
            putfield com.jcraft.jsch.IO.out:Ljava/io/OutputStream;
         2: .line 96
            goto 4
         3: .line 97
      StackMap locals:
      StackMap stack: java.lang.Exception
            pop
         4: .line 98
      StackMap locals:
      StackMap stack:
            return
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lcom/jcraft/jsch/IO;
      Exception table:
        from    to  target  type
           0     2       3  Class java.lang.Exception

  public void close();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.jcraft.jsch.IO this
         0: .line 102
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.in:Ljava/io/InputStream;
            ifnull 1
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.in_dontclose:Z
            ifne 1
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.in:Ljava/io/InputStream;
            invokevirtual java.io.InputStream.close:()V
         1: .line 103
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aconst_null
            putfield com.jcraft.jsch.IO.in:Ljava/io/InputStream;
         2: .line 104
            goto 4
         3: .line 105
      StackMap locals:
      StackMap stack: java.lang.Exception
            pop
         4: .line 107
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokevirtual com.jcraft.jsch.IO.out_close:()V
         5: .line 110
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.out_ext:Ljava/io/OutputStream;
            ifnull 6
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.out_ext_dontclose:Z
            ifne 6
            aload 0 /* this */
            getfield com.jcraft.jsch.IO.out_ext:Ljava/io/OutputStream;
            invokevirtual java.io.OutputStream.close:()V
         6: .line 111
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aconst_null
            putfield com.jcraft.jsch.IO.out_ext:Ljava/io/OutputStream;
         7: .line 112
            goto 9
         8: .line 113
      StackMap locals:
      StackMap stack: java.lang.Exception
            pop
         9: .line 114
      StackMap locals:
      StackMap stack:
            return
        end local 0 // com.jcraft.jsch.IO this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   10     0  this  Lcom/jcraft/jsch/IO;
      Exception table:
        from    to  target  type
           0     2       3  Class java.lang.Exception
           5     7       8  Class java.lang.Exception
}
SourceFile: "IO.java"