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Unrecoverable Null Pointer Exception

See original GitHub issue

Version: Building from master branch Ethereum Node: Rinkeby WS Infura Strategy: PUBSUB

Error:

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 | java.lang.NullPointerException
        at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:704)
        at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:701)
        at io.reactivex.internal.subscribers.LambdaSubscriber.onError(LambdaSubscriber.java:79)
        at io.reactivex.internal.subscribers.LambdaSubscriber.onNext(LambdaSubscriber.java:69)
        at io.reactivex.internal.operators.flowable.FlowableSubscribeOn$SubscribeOnSubscriber.onNext(FlowableSubscribeOn.java:97)
        at io.reactivex.internal.operators.flowable.FlowableConcatArray$ConcatArraySubscriber.onNext(FlowableConcatArray.java:76)
        at io.reactivex.internal.operators.flowable.FlowableFlatMap$MergeSubscriber.tryEmitScalar(FlowableFlatMap.java:234)
        at io.reactivex.internal.operators.flowable.FlowableFlatMap$MergeSubscriber.onNext(FlowableFlatMap.java:152)
        at io.reactivex.internal.operators.flowable.FlowableCreate$BufferAsyncEmitter.drain(FlowableCreate.java:547)
        at io.reactivex.internal.operators.flowable.FlowableCreate$BufferAsyncEmitter.onNext(FlowableCreate.java:471)
        at org.web3j.protocol.core.filters.BlockFilter.process(BlockFilter.java:42)
        at org.web3j.protocol.core.filters.Filter.pollFilter(Filter.java:144)
        at org.web3j.protocol.core.filters.Filter.lambda$run$0(Filter.java:92)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
        at net.consensys.eventeum.chain.service.domain.wrapper.Web3jBlock.lambda$new$0(Web3jBlock.java:52)
        at org.modelmapper.internal.TypeMapImpl.addMappings(TypeMapImpl.java:236)
        at net.consensys.eventeum.chain.service.domain.wrapper.Web3jBlock.<init>(Web3jBlock.java:47)
        at net.consensys.eventeum.chain.service.strategy.PollingBlockSubscriptionStrategy.convertToEventeumBlock(PollingBlockSubscriptionStrategy.java:51)
        at net.consensys.eventeum.chain.service.strategy.PollingBlockSubscriptionStrategy.convertToEventeumBlock(PollingBlockSubscriptionStrategy.java:22)
        at net.consensys.eventeum.chain.service.strategy.AbstractBlockSubscriptionStrategy.triggerListeners(AbstractBlockSubscriptionStrategy.java:72)
        at net.consensys.eventeum.chain.service.strategy.PollingBlockSubscriptionStrategy.lambda$subscribe$0(PollingBlockSubscriptionStrategy.java:38)
        at io.reactivex.internal.subscribers.LambdaSubscriber.onNext(LambdaSubscriber.java:65)
        ... 16 more
Exception in thread "pool-3-thread-6" io.reactivex.exceptions.OnErrorNotImplementedException: The exception was not handled due to missing onError handler in the subscribe() method call. Further reading: https://github.com/ReactiveX/RxJava/wiki/Error-Handling | java.lang.NullPointerException
        at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:704)
        at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:701)
        at io.reactivex.internal.subscribers.LambdaSubscriber.onError(LambdaSubscriber.java:79)
        at io.reactivex.internal.subscribers.LambdaSubscriber.onNext(LambdaSubscriber.java:69)
        at io.reactivex.internal.operators.flowable.FlowableSubscribeOn$SubscribeOnSubscriber.onNext(FlowableSubscribeOn.java:97)
        at io.reactivex.internal.operators.flowable.FlowableConcatArray$ConcatArraySubscriber.onNext(FlowableConcatArray.java:76)
        at io.reactivex.internal.operators.flowable.FlowableFlatMap$MergeSubscriber.tryEmitScalar(FlowableFlatMap.java:234)
        at io.reactivex.internal.operators.flowable.FlowableFlatMap$MergeSubscriber.onNext(FlowableFlatMap.java:152)
        at io.reactivex.internal.operators.flowable.FlowableCreate$BufferAsyncEmitter.drain(FlowableCreate.java:547)
        at io.reactivex.internal.operators.flowable.FlowableCreate$BufferAsyncEmitter.onNext(FlowableCreate.java:471)
        at org.web3j.protocol.core.filters.BlockFilter.process(BlockFilter.java:42)
        at org.web3j.protocol.core.filters.Filter.pollFilter(Filter.java:144)
        at org.web3j.protocol.core.filters.Filter.lambda$run$0(Filter.java:92)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
        at net.consensys.eventeum.chain.service.domain.wrapper.Web3jBlock.lambda$new$0(Web3jBlock.java:52)
        at org.modelmapper.internal.TypeMapImpl.addMappings(TypeMapImpl.java:236)
        at net.consensys.eventeum.chain.service.domain.wrapper.Web3jBlock.<init>(Web3jBlock.java:47)
        at net.consensys.eventeum.chain.service.strategy.PollingBlockSubscriptionStrategy.convertToEventeumBlock(PollingBlockSubscriptionStrategy.java:51)
        at net.consensys.eventeum.chain.service.strategy.PollingBlockSubscriptionStrategy.convertToEventeumBlock(PollingBlockSubscriptionStrategy.java:22)
        at net.consensys.eventeum.chain.service.strategy.AbstractBlockSubscriptionStrategy.triggerListeners(AbstractBlockSubscriptionStrategy.java:72)
        at net.consensys.eventeum.chain.service.strategy.PollingBlockSubscriptionStrategy.lambda$subscribe$0(PollingBlockSubscriptionStrategy.java:38)
        at io.reactivex.internal.subscribers.LambdaSubscriber.onNext(LambdaSubscriber.java:65)
        ... 16 more

Issue Analytics

State:
Created 4 years ago
Comments:14

Top GitHub Comments

1reaction

craigwilliams84commented, Feb 18, 2020

Thanks for raising this Hayder. I’ve been at ETHDenver over the last few days, but will take a look ASAP.

0reactions

josephlama07commented, Oct 11, 2022

I am having the same issue , how can i solve this @craigwilliams84?

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