getBlockByNumber() throws Exception

[gagarin55]

I've just installed geth:
$ geth version Geth Version: 1.5.4-stable Git Commit: b70acf3c5bd335d8dedc2a5aa6eff05c4c32105e Protocol Versions: [63 62] Network Id: 1 Go Version: go1.7.3 OS: linux GOPATH= GOROOT=/usr/lib/go-1.7

web3j 1.0.8

The call web3.ethGetBlockByNumber(DefaultBlockParameter.valueOf(BigInteger.valueOf(1)), true).send() throws exception:

Can not deserialize value of type byte from String "0x1b": not a valid Byte value at [Source: org.apache.http.conn.EofSensorInputStream@18a35f13; line: 1, column: 2024] (through reference chain: org.web3j.protocol.core.methods.response.TransactionObject["v"]) (through reference chain: org.web3j.protocol.core.methods.response.EthBlock["result"]->org.web3j.protocol.core.methods.response.Block["transactions"]) com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize value of type byte from String "0x1b": not a valid Byte value at [Source: org.apache.http.conn.EofSensorInputStream@18a35f13; line: 1, column: 2024] (through reference chain: org.web3j.protocol.core.methods.response.TransactionObject["v"]) (through reference chain: org.web3j.protocol.core.methods.response.EthBlock["result"]->org.web3j.protocol.core.methods.response.Block["transactions"]) at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:379) at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:339) at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.wrapAndThrow(BeanDeserializerBase.java:1589) at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:278) at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:140) at com.fasterxml.jackson.databind.ObjectReader._bind(ObjectReader.java:1579) at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:961) at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:978) at org.web3j.protocol.core.methods.response.EthBlock$ResponseDeserialiser.deserialize(EthBlock.java:458) at org.web3j.protocol.core.methods.response.EthBlock$ResponseDeserialiser.deserialize(EthBlock.java:449) at com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:490) at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:95) at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:276) at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:140) at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3789) at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2899) at org.web3j.protocol.http.HttpService.lambda$getResponseHandler$9(HttpService.java:91) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:222) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:164) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:139) at org.web3j.protocol.http.HttpService.send(HttpService.java:69) at org.web3j.protocol.core.Request.send(Request.java:68)

I've checked geth rpc itself, it works like a charm

Thank you for advice

[conor10]

The issue here is Parity & Geth differing in the v field type in their transaction response messages. Parity returns a byte, Geth returns a hex encoded string. See here for details.

Workaround has gone out with release v1.0.9.