No virtual method setInitialDelay() with WorkManager 2.2.0

Using the latest stable releases of android-job and WorkManager:

implementation 'com.evernote:android-job:1.4.1'
implementation 'androidx.work:work-runtime:2.2.0'

I get this crash when I try to schedule a job:

 Caused by: java.lang.NoSuchMethodError: No virtual method setInitialDelay(JLjava/util/concurrent/TimeUnit;)Landroidx/work/OneTimeWorkRequest$Builder; in class Landroidx/work/OneTimeWorkRequest$Builder; or its super classes (declaration of 'androidx.work.OneTimeWorkRequest$Builder' appears in /data/app/com.youneedabudget.evergreen.app.develop-Kx7Jp9uBEt29bXoJWoCEcw==/base.apk)
    at com.evernote.android.job.work.JobProxyWorkManager.plantOneOff(JobProxyWorkManager.java:50)
    at com.evernote.android.job.JobManager.scheduleWithApi(JobManager.java:244)
    at com.evernote.android.job.JobManager.schedule(JobManager.java:199)
    at com.evernote.android.job.JobRequest.schedule(JobRequest.java:430)

This is the first time I have tried to add the WorkManager dependency, so I don’t know if it worked with older (or non-AndroidX) WorkManager versions. Previously I was just using android-job’s default implementation without WorkManager, and that has always worked fine.

If I remove the WorkManager dependency then everything works.

I am using Jetifier.

[strooooke]

I was curious about the binary incompatibility, so took a closer look at that change between 2.0.1 and 2.2.0 - now I believe I’ve understood the issue and would like to share with the class.

Old:

abstract class WorkRequest {
    abstract static class Builder<B extends Builder, W extends WorkRequest> {
    }
}

class OneTimeWorkRequest extends WorkRequest {
   static class Builder extends WorkRequest.Builder<Builder, OneTimeWorkRequest> {
       public @NonNull Builder setInitialDelay(long duration, @NonNull TimeUnit timeUnit) {
          ....
       }
  }
}

New:

abstract class WorkRequest {
    abstract static class Builder<B extends Builder, W extends WorkRequest> {
         public @NonNull B setInitialDelay(long duration, @NonNull TimeUnit timeUnit) {
              ...
         }
    }
}

class OneTimeWorkRequest extends WorkRequest {
   static class Builder extends WorkRequest.Builder<Builder, OneTimeWorkRequest> {
  }
}

i.e., that method in question was pulled up into a super type. That’s fine. But the signature changed: the return type was previously OneTimeWorkRequest.Builder. In the new version, at compile time, it is still known to be exactly that, when called with a OneTimeWorkRequest as receiver. But during compilation, due to type erasure, that type parameter B gets erased to its upper bound: WorkRequest.Builder. So in 2.2.0, there is really no virtual method setInitialDelay(JLjava/util/concurrent/TimeUnit;)Landroidx/work/OneTimeWorkRequest$Builder; to be found on type OneTimeWorkRequest$Builder; it is setInitialDelay(JLjava/util/concurrent/TimeUnit;)Landroidx/work/WorkRequest$Builder; now.

Thanks for making me learn today. https://docs.oracle.com/javase/specs/jls/se7/html/jls-13.html was enlightening.

[vRallev]

Thanks for confirming.