The planetary nervous system is enabled by Internet of Things technologies and aims at seamlessly interconnecting a large number of different pervasive devices, e.g. mobile phones, smart sensors, etc. http://www.nervousnet.info
The error that shows is pasted below. After a while it worked well for all sensors light, noise and battery.
08-24 13:40:29.005 18040-18059/? E/JavaBinder: *** Uncaught remote exception! (Exceptions are not yet supported across processes.)
java.lang.ClassCastException: java.util.Collections$EmptyList cannot be cast to java.util.ArrayList
at ch.ethz.coss.nervousnet.vm.storage.SQLHelper.getSensorReadings(SQLHelper.java:301)
at ch.ethz.coss.nervousnet.vm.NervousnetVM.getReadings(NervousnetVM.java:349)
at ch.ethz.coss.nervousnet.hub.NervousnetHubApiService$1.getReadings(NervousnetHubApiService.java:71)
at ch.ethz.coss.nervousnet.lib.NervousnetRemote$Stub.onTransact(NervousnetRemote.java:91)
at android.os.Binder.execTransact(Binder.java:446)
in this code:
public synchronized void removeOldReadings(long sensorID, long threshold){
String sql = "DELETE FROM " + String.valueOf(sensorID) + ...
The table name should be "ID" but String.valueOf(sensorID) does not provide that.
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