Eclipse Community Forums: Kura » Bluetooth Service Null Pointer Exception in BLE Scanner Example

Home » Eclipse Projects » Kura » Bluetooth Service Null Pointer Exception in BLE Scanner Example(Bluetooth Service Null Pointer Exception in BLE Scanner Example)

Show: Today's Messages :: Show Polls :: Message Navigator

Bluetooth Service Null Pointer Exception in BLE Scanner Example [message #1759950]

Thu, 20 April 2017 10:35

Rangan Roy

Messages: 1
Registered: April 2017

Junior Member

Hi,

I was trying to implement kura's ble scanner example . I made that as plugin project and exported as deployble plugins and fragment and deployed that in raspberry-pi using mToolKit . But when that bundle starts it is giving and Nullpointer exception inside setup() method . It is giving me the NullPointerException in the below line in side setup() method :

this.bluetoothAdapter = bluetoothService.getBluetoothAdapter(adapterName);

Here, adapterName is coming as a string and the value is "hci0".

I'm uploading the project as well as error log . Kindly help me .

Attachment: bundleDeploymentErrorLog
(Size: 6.92KB, Downloaded 87 times)
Attachment: org.eclipse.kura.example.beacon.scanner.tar.gz
(Size: 8.64KB, Downloaded 70 times)

Report message to a moderator

Re: Bluetooth Service Null Pointer Exception in BLE Scanner Example [message #1760848 is a reply to message #1759950]

Wed, 03 May 2017 15:18

Pierantonio Merlino

Messages: 39
Registered: March 2016

Member

Hi,

it seems that the bluetoothService object is null, so when you try to get the adapter, a NullPointerException is thrown.

IMHO, start with a fresh user workspace and import the original beacon scanner. Then start modifying that working code.
Or, develop the bundle from scratch (as shown http://eclipse.github.io/kura/doc/configurable_component.html) using the beacon scanner code.

Report message to a moderator

Previous Topic:	Make changes in kura
Next Topic:	org.eclipse.kura.example.camel.publisher does not build from sources (KURA_2.1.0_RELEASE)

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Fri Apr 26 23:46:52 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter