Undelivered exception ignored for parallel api request

app/src/main/java/com/gmeremit/online/gmeremittance_native/topup/local/presenter/topup/LocalTopUpPresenter.java

@@ -30,7 +30,9 @@ import java.util.regex.Pattern;
 import io.reactivex.Observable;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.exceptions.UndeliverableException;
 import io.reactivex.observers.DisposableObserver;
+import io.reactivex.plugins.RxJavaPlugins;
 import io.reactivex.schedulers.Schedulers;
 import io.reactivex.subjects.BehaviorSubject;
 import retrofit2.HttpException;
@@ -63,6 +65,14 @@ public class LocalTopUpPresenter extends BasePresenter implements LocalTopUpPres
         this.fixedTopUpValidator = new FixedTopUpValidator();
         this.dataTopUpValidator = new DataTopUpValidator();
 
+        RxJavaPlugins.setErrorHandler(throwable -> {
+            if (throwable instanceof UndeliverableException && throwable.getCause() instanceof HttpException) {
+                return; // ignore BleExceptions as they were surely delivered at least once
+            }
+            // add other custom handlers if needed
+            throw new RuntimeException("Unexpected Throwable in RxJavaPlugins error handler", throwable);
+        });
+
     }
 
     @Override