Program: 4007
Project: 4007
Buggy source:
public boolean write(Object chunk,String encoding,WriteCB callback) throws Exception {
  if (Util.zeroString(this._header)) {
    this._implicitHeader();
  }
  Log.d(TAG,"String_Node_Str");
  if (!this._hasBody) {
    Log.d(TAG,"String_Node_Str" + "String_Node_Str");
    return true;
  }
  if (!Util.isString(chunk) && !Util.isBuffer(chunk)) {
    throw new Exception("String_Node_Str");
  }
  Log.d(TAG,"String_Node_Str");
  if (Util.chunkLength(chunk) == 0)   return true;
  int len;
  boolean ret;
  if (this.chunkedEncoding) {
    Log.d(TAG,"String_Node_Str");
    if (Util.isString(chunk) && encoding != "String_Node_Str" && encoding != "String_Node_Str" && encoding != "String_Node_Str") {
      Log.d(TAG,"String_Node_Str");
      len=Util.stringByteLength((String)chunk,encoding);
      chunk=Integer.toString(len,16) + HTTP.CRLF + chunk+ HTTP.CRLF;
      Log.d(TAG,"String_Node_Str" + chunk.toString());
      ret=this._send(chunk,encoding,callback);
    }
 else {
      if (Util.isString(chunk))       len=Util.stringByteLength((String)chunk,encoding);
 else       len=Util.chunkLength(chunk);
      if (this.connection != null && this.connection.corked() == 0) {
        this.connection.cork();
        final AbstractSocket conn=this.connection;
        context.nextTick(new nextTickListener(){
          @Override public void onNextTick() throws Exception {
            if (conn != null)             conn.uncork();
          }
        }
);
      }
      this._send(Integer.toString(len,16),"String_Node_Str",null);
      this._send(ByteBuffer.wrap("String_Node_Str".getBytes("String_Node_Str")),null,null);
      this._send(chunk,encoding,null);
      ret=this._send(ByteBuffer.wrap("String_Node_Str".getBytes("String_Node_Str")),null,callback);
    }
  }
 else {
    Log.d(TAG,"String_Node_Str");
    ret=this._send(chunk,encoding,callback);
  }
  Log.d(TAG,"String_Node_Str" + ret);
  return ret;
}

Fixed version (ground truth):
public boolean write(Object chunk,String encoding,WriteCB callback) throws Exception {
  if (Util.zeroString(this._header)) {
    this._implicitHeader();
  }
  Log.d(TAG,"String_Node_Str");
  if (!this._hasBody) {
    Log.d(TAG,"String_Node_Str" + "String_Node_Str");
    return true;
  }
  if (!Util.isString(chunk) && !Util.isBuffer(chunk)) {
    throw new Exception("String_Node_Str");
  }
  Log.d(TAG,"String_Node_Str");
  if (Util.chunkLength(chunk) == 0)   return true;
  int len;
  boolean ret;
  if (this.chunkedEncoding) {
    Log.d(TAG,"String_Node_Str");
    if (Util.isString(chunk) && encoding != "String_Node_Str" && encoding != "String_Node_Str" && encoding != "String_Node_Str") {
      Log.d(TAG,"String_Node_Str");
      len=Util.stringByteLength((String)chunk,encoding);
      chunk=Integer.toString(len,16) + http.CRLF + chunk+ http.CRLF;
      Log.d(TAG,"String_Node_Str" + chunk.toString());
      ret=this._send(chunk,encoding,callback);
    }
 else {
      if (Util.isString(chunk))       len=Util.stringByteLength((String)chunk,encoding);
 else       len=Util.chunkLength(chunk);
      if (this.connection != null && this.connection.corked() == 0) {
        this.connection.cork();
        final AbstractSocket conn=this.connection;
        context.nextTick(new nextTickListener(){
          @Override public void onNextTick() throws Exception {
            if (conn != null)             conn.uncork();
          }
        }
);
      }
      this._send(Integer.toString(len,16),"String_Node_Str",null);
      this._send(ByteBuffer.wrap("String_Node_Str".getBytes("String_Node_Str")),null,null);
      this._send(chunk,encoding,null);
      ret=this._send(ByteBuffer.wrap("String_Node_Str".getBytes("String_Node_Str")),null,callback);
    }
  }
 else {
    Log.d(TAG,"String_Node_Str");
    ret=this._send(chunk,encoding,callback);
  }
  Log.d(TAG,"String_Node_Str" + ret);
  return ret;
}