[Bug] no String-argument constructor/factory method to deserialize from String value ('')

Describe the bug Based on this tutorial, I want to use an Integration to read Kafka topic data. But I got the bellow bug after upgrading Thingsboard 3.1.1 I did search kafka document, the issue caused by the kafka integration which does not implemented with "–property key.deserializer=org.apache.kafka.common.serialization.StringDeserializer ".

Your Server Environment

• own setup

  • my cloud vm

  • ThingsBoard Version: 3.1.1

  • Ubuntu 18.04 Your Client Environment= Desktop (please complete the following information): MacOS

  • Integration: Kafka

To Reproduce Steps to reproduce the behavior:

1. Go to ‘Integration’
2. Click on ‘integration/event’
3. Choose “Lifecycle event type”
4. See error

com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of java.util.LinkedHashMap(although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('') at [Source: (String)"{"groupId":"group_id_6238ulbcnz","clientId":"client_id_cl15o71g1y","topics":"solar-module-anomalies","bootstrapServers":"134.129.97.131:9092","pollInterval":5000,"autoCreateTopics":false,"otherProperties":""}"; line: 1, column: 206] (through reference chain: org.thingsboard.integration.kafka.KafkaConsumerConfiguration["otherProperties"]) at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:63) at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1429) at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1059) at com.fasterxml.jackson.databind.deser.ValueInstantiator._createFromStringFallbacks(ValueInstantiator.java:371) at com.fasterxml.jackson.databind.deser.ValueInstantiator.createFromString(ValueInstantiator.java:258) at com.fasterxml.jackson.databind.deser.std.MapDeserializer.deserialize(MapDeserializer.java:357) at com.fasterxml.jackson.databind.deser.std.MapDeserializer.deserialize(MapDeserializer.java:29) at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:129) at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:288) at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:151) at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4202) at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3205) at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3173) at org.thingsboard.integration.kafka.AbstractKafkaIntegration.init(AbstractKafkaIntegration.java:61) at org.thingsboard.integration.kafka.basic.BasicKafkaIntegration.init(BasicKafkaIntegration.java:52) at org.thingsboard.server.service.integration.DefaultPlatformIntegrationService.getOrCreateThingsboardPlatformIntegration(DefaultPlatformIntegrationService.java:938) at org.thingsboard.server.service.integration.DefaultPlatformIntegrationService.lambda$createIntegration$1(DefaultPlatformIntegrationService.java:346) at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:125) at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:69) at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:78) at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402) at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175) Expected behavior A clear and concise description of what you expected to happen.

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[YevhenBondarenko]

I believe by the end of this month.

[quocnh]

When Thingsboard 3.2.0 version will be released you can upgrade your old version using the instruction.

Great! Could you please tell me about the release time so that we can arrange our work better?