Comments on: Java Bluetooth Forum

By: Chandra

Chandra — Sun, 21 Feb 2010 20:49:10 +0000

I am getting the following exception, while creating a connection.

Exception in thread “main” java.io.IOException: java.io.IOException: Failed to create connection
at javax.microedition.io.Connector.openPrim(Unknown Source)
at javax.microedition.io.Connector.open(Unknown Source)
at javax.microedition.io.Connector.open(Unknown Source)
at javax.microedition.io.Connector.open(Unknown Source)
at SampleSPPServer.startServer(SampleSPPServer.java:27)
at SampleSPPServer.main(SampleSPPServer.java:63)

Code snippet
————
String connectionString = “btspp://localhost:” + uuid +”;name=SPPServer”;
//open server url
StreamConnectionNotifier streamConnNotifier = (StreamConnectionNotifier)Connector.open( connectionString );

By: LOOOLA

LOOOLA — Fri, 31 Oct 2008 12:30:33 +0000

Hello..

I am new in Bluetooth programming..in my project I must have more than 7 slaves in a piconet..and I was read that I can do this using parked mode.. by sending LMP_park_req from the master and then a slave will reply…etc.

but my problem is how to write a program that uses these PDUs..I search a lot but I didn’t find any code?

plz help me
thanks …

By: Sam

Sam — Wed, 03 Sep 2008 08:03:57 +0000

I think you need to change the setting on your simulator.If you are using KToolbar by sun, then when you open a project, go to settings select custom from the dropdown list and select Bluetooth/J2Me 82 checkbox.

By: chris

chris — Tue, 25 Mar 2008 21:19:39 +0000

I’m getting the exact same thing as you Lee. Did you figure out the problem?

By: Lee

Lee — Thu, 06 Dec 2007 18:49:14 +0000

I am new to the J2ME BlueTooth programming, just go through the example of Device Discovery,i go an error below when i run this program?
Exception in thread “main” java.lang.ExceptionInInitializerError
at com.jsrsoft.eb.nw.LD.gld(Unknown Source)
at javax.bluetooth.LocalDevice.(Unknown Source)
at javax.bluetooth.LocalDevice.getLocalDevice(Unknown Source)
at test.BluetoothDeviceDiscovery.main(BluetoothDeviceDiscovery.java:35)
Caused by: java.lang.RuntimeException: Include ElectricBlue library in the path
at com.jsrsoft.eb.nw.NW.(Unknown Source)

Does anyone give me a little help at this stage?

By: Jet Ma

Jet Ma — Wed, 24 Oct 2007 05:34:29 +0000

learning java bluetooth

By: nabeel

nabeel — Mon, 27 Aug 2007 07:45:20 +0000

i am working on a project in pervasive computing based on java in which we will be a utilizing bluetooth communication.