package jb; public final class b extends RuntimeException { private static final long serialVersionUID = -6298857009889503852L; public b(Throwable th) { super("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 == null ? new NullPointerException() : th); } }