Android compatibility?

[stefanb22]

I'm trying to use this in an Android java app but I get an exception when creating the HolidayManager (see stack trace below). I am targeting java 11 and have the below in my build.gradle (app) file:
implementation 'de.focus-shift:jollyday-jackson:1.1.0

Do i need to do anything more to configure my app to use Jollyday, or what could be wrong (I am running on Samsung S23 Ultra with Android 14)?

FATAL EXCEPTION: pool-3-thread-1 (Ask Gemini)
Process: net.stefano.budgeto, PID: 32402
java.lang.IllegalStateException: Cannot instantiate datasource instance because there is no implementations at de.focus_shift.jollyday.core.datasource.ConfigurationServiceManager.instantiateDataSource(ConfigurationServiceManager.java:40)
at de.focus_shift.jollyday.core.datasource.ConfigurationServiceManager.getConfigurationService(ConfigurationServiceManager.java:22)
at de.focus_shift.jollyday.core.HolidayManagerValueHandler.createValue(HolidayManagerValueHandler.java:37)
at de.focus_shift.jollyday.core.HolidayManagerValueHandler.createValue(HolidayManagerValueHandler.java:11)
at de.focus_shift.jollyday.core.caching.Cache.lambda$get$0(Cache.java:22)
at de.focus_shift.jollyday.core.caching.Cache$$ExternalSyntheticLambda0.apply(D8$$SyntheticClass:0)
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1713)
at de.focus_shift.jollyday.core.caching.Cache.get(Cache.java:22)
at de.focus_shift.jollyday.core.HolidayManager.createManager(HolidayManager.java:120)
at de.focus_shift.jollyday.core.HolidayManager.getInstance(HolidayManager.java:102)

[derTobsch]

Hey @stefanb22,
I have not tested jollyday on android. It feels like the ServiceLoader could not pick up the implementations. Do you know how android defines the implementations?