package a8; public final class c extends RuntimeException { public c(String str, Throwable th) { super(str, th == null ? new NullPointerException() : th); } public c(Throwable th) { this("The exception was not handled due to missing onError handler in the subscribe() method call. Further reading: https://github.com/ReactiveX/RxJava/wiki/Error-Handling | " + th, th); } }