ThreeTenABP as JAR?

[cleemansen]

Hello,

I am working w/ multiple gradle modules in my android app. One of them is a pure java module. As I understand it a Java-Module can not depend on a aar-dependency. Trying to integrate ThreeTenADB into my Java-Module fails w/ build-error:

Error:Module 'xxxxxx' depends on one or more Android Libraries but is a jar

• Is ThreeTenADB available packaged as JAR?
• Can I convert a AAR to a JAR?
• Any other ideas how to mix android- and java-modules witch depends both to a state of the art time implementation?

Thanks!

[JakeWharton]

You can depend on the normal https://github.com/ThreeTen/threetenbp library and then use a Gradle resolution strategy dependency substitution to replace that dependency with the ABP one for Android modules (or just the app module).

[cleemansen]

Thank you for that hint! I really appreciate it!

I added to the app/build.gradle:

configurations {
  compile.resolutionStrategy {
    dependencySubstitution {
      substitute module('org.threeten:threetenbp:1.3.6') with module('com.jakewharton.threetenabp:threetenabp:1.0.5')
    }
  }
}

Gradle build is now fine. Unfortunately my app doesn't start anymore. I am not sure if it is related to my first question. My I ask you again for any tips w/ the following exception during startup:

Caused by: org.threeten.bp.zone.ZoneRulesException: Unable to register zone as one already registered with that ID: Asia/Aden, currently loading from provider: TZDB
                                                                                     at org.threeten.bp.zone.ZoneRulesProvider.registerProvider0(ZoneRulesProvider.java:205)
                                                                                     at org.threeten.bp.zone.ZoneRulesProvider.registerProvider(ZoneRulesProvider.java:190)
                                                                                     at com.jakewharton.threetenabp.AndroidThreeTen.init(AndroidThreeTen.java:40)
                                                                                     at com.jakewharton.threetenabp.AndroidThreeTen.init(AndroidThreeTen.java:16)