How to read data from file in server in byte array

How to read data from file in server in byte array

I want to read a file from a server and get the data of it.
I have written following piece of code.
URL uurl = new URL(this.m_FilePath);
BufferedReader in = new BufferedReader(new
InputStreamReader(uurl.openStream()));
String str;
while ((str = in.readLine()) != null) {
text_file=text_file+str;
text_file=text_file+"\n";
}
m_byteVertexBuffer=text_file.getBytes();
But i am getting wrong result! If I read data from a string, I get
m_bytevertexbuffer length=249664.
Now when I read a local file into the bytearray then i get
m_bytevertexbuffer length=169332.
FileInputStream fis = new FileInputStream(VertexFile);
fis.read(m_byteVertexBuffer);
ByteBuffer dlb=null;
int l=m_byteVertexBuffer.length;
I want the same data in bytebuffer from a server and also from a local file!