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bluetooth connction blocks file creation

Ritesh Chopade

Joined: Oct 22, 2008
Posts: 8
In my application, I have to establish the connection to server mobile(slave) through bluetooth. but once I establish connection to server mobile, I am unable to create new file.
But the file is created before connection establishment. I have set all API permissions also.
If anyone have solution, please help me its too urgent.
HaoZhe Xu
Ranch Hand

Joined: Nov 03, 2003
Posts: 222
You should explain more clearer:

1 Do you use only one thread for everything? If so, and after you connect to server and waiting for IO, that blocks the thread so you won't be able to create a new file

2 Do you mean RMS data or local file via JSR 75 File Connection API?

3 What error message/exception do you get? Can you try to catch some exceptions and post the results?

Ritesh Chopade

Joined: Oct 22, 2008
Posts: 8
Hi HaoZhe,
I use different thread for bluetooth connection & file creation.
And I am talking about local file via JSR 75 File Connection API.
I never get any error/exception.

The following is the code fragment of my application. The code works fine event the exists method of File Connection class return true
(i.e:- file created), but I am unable to find it at file system.

The code fragment as,

final byte[] data = "It is my just a test data".getBytes(); //It is the data which is comes from another bluetooth device
final String fName = "file:///root1/test.txt"; //The file I want to create at my file system(i.e:- root1 folder in my file system)
new Thread(new Runnable() {

public void run() {
FileConnection fc = (FileConnection), Connector.WRITE);
System.out.println("fc.exists()(Before) : " + fc.exists() ); //It prints "fc.exists()(Before) : false"
if( !fc.exists() ){
System.out.println("fc.exists()(After) : " + fc.exists() ); //It prints "fc.exists()(After) : true"
OutputStream fout = fc.openOutputStream();
}catch(IOException ex){

And for more information you check my yesterday's post Unable to create file
I agree. Here's the link:
subject: bluetooth connction blocks file creation
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