Hey,
If i understand you right you want to configure deviceName.
Try adding the following line under src/main/resources > META-INF > spring > applicationContext.xml and applicationContext-test.xml:
<bean id="deviceAllocator" class="org.openlegacy.terminal.support.SimpleDeviceAllocator" p:deviceName="oladmin" />
Add it at the bottom above: <context:property-override....
Tom