Invalid request: filter not found

[smile-vi]

Bug_title

Invalid request: filter not found

Steps To Reproduce

Use ethLogFlowable to listen for contracts

Expected behavior

expected not Invalid request: filter not found

Actual behavior

Invalid request: filter not found

Environment

Describe the environment in which the issue occurs

• Web3j 4.8.8
• Java 8
• Operating System windows

Additional context

Add any other context about the problem here.

• Logs org.web3j.protocol.core.filters.FilterException: Invalid request: filter not found at org.web3j.protocol.core.filters.Filter.throwException(Filter.java:194) at org.web3j.protocol.core.filters.Filter.getInitialFilterLogs(Filter.java:120) at org.web3j.protocol.core.filters.Filter.run(Filter.java:69) at org.web3j.protocol.core.filters.Filter.reinstallFilter(Filter.java:159) at org.web3j.protocol.core.filters.Filter.pollFilter(Filter.java:141) 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)
• Sample code

•       EthFilter filter = new EthFilter(
                DefaultBlockParameterName.LATEST,
                DefaultBlockParameterName.LATEST,
                "address");
  
        Disposable disposed = web3j.ethLogFlowable(filter).subscribe(log -> {
            System.out.println("区块高度-----"+log.getBlockNumber());
            System.out.println("交易hash---"+ log.getTransactionHash());
        },error ->{
            error.printStackTrace();
        });
  

• Unit/integration tests to highlight the issue
• etherscan references

[g2px1]

Same issue.

Environment

• Java 13.
• Web3j 4.9.1 GeneratedContractERC721.transferEventFlowable(filter).blockingForEach(item -> { if(item.to.equalsIgnoreCase("<here I'm using first test user address>".toLowerCase(Locale.ROOT)) && item.from.equalsIgnoreCase("<here I'm using second test user address>")) { System.out.println(true); } });

Exception in thread "restartedMain" java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) Caused by: org.web3j.protocol.core.filters.FilterException: Invalid request: filter not found at org.web3j.protocol.core.filters.Filter.throwException(Filter.java:194) at org.web3j.protocol.core.filters.Filter.getInitialFilterLogs(Filter.java:120) at org.web3j.protocol.core.filters.Filter.run(Filter.java:69) at org.web3j.protocol.rx.JsonRpc2_0Rx.run(JsonRpc2_0Rx.java:89) at org.web3j.protocol.rx.JsonRpc2_0Rx.lambda$ethLogFlowable$2(JsonRpc2_0Rx.java:79) at io.reactivex.internal.operators.flowable.FlowableCreate.subscribeActual(FlowableCreate.java:71) at io.reactivex.Flowable.subscribe(Flowable.java:14935) at io.reactivex.internal.operators.flowable.FlowableMap.subscribeActual(FlowableMap.java:37) at io.reactivex.Flowable.subscribe(Flowable.java:14935) at io.reactivex.internal.operators.flowable.BlockingFlowableIterable.iterator(BlockingFlowableIterable.java:42) at io.reactivex.Flowable.blockingForEach(Flowable.java:5772)

Error not systematic, looks like random error

[Xilis]

https://github.com/web3j/web3j/pull/1679