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Streaming-Poloniex NullPointer and missing onError handler in subscribe()

See original GitHub issue

i get this frequently:

io.reactivex.exceptions.OnErrorNotImplementedException: 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 | com.fasterxml.jackson.databind.exc.ValueInstantiationException: Cannot construct instance of `info.bitrich.xchangestream.poloniex2.dto.PoloniexWebSocketEventsTransaction`, problem: `java.lang.NullPointerException`
 at [Source: UNKNOWN; line: -1, column: -1]

Caused by: java.lang.NullPointerException
	at info.bitrich.xchangestream.poloniex2.dto.PoloniexWebSocketEventsTransaction.createEvents(PoloniexWebSocketEventsTransaction.java:46)
	at info.bitrich.xchangestream.poloniex2.dto.PoloniexWebSocketEventsTransaction.<init>(PoloniexWebSocketEventsTransaction.java:28)
	at jdk.internal.reflect.GeneratedConstructorAccessor110.newInstance(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481)
	at com.fasterxml.jackson.databind.introspect.AnnotatedConstructor.call(AnnotatedConstructor.java:124)
	at com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.createFromObjectWith(StdValueInstantiator.java:283)

Issue Analytics

State:
Created 3 years ago
Comments:7

Top GitHub Comments

1reaction

earcecommented, Dec 19, 2020

you need to have an “onError” or use the subscribe with an error parameter

0reactions

earcecommented, Dec 19, 2020

User error

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