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https://issues.apache.org/jira/browse/KAFKA-4823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15890468#comment-15890468
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Ismael Juma commented on KAFKA-4823:
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If you can't upgrade the Java version in the client, the options are: use a
REST proxy (search for "kafka rest proxy") or use the producer from Kafka
0.8.2.0 (not recommended since a lot of bugs have been fixed since that
release).
> Creating Kafka Producer on application running on Java 1.6
> ----------------------------------------------------------
>
> Key: KAFKA-4823
> URL: https://issues.apache.org/jira/browse/KAFKA-4823
> Project: Kafka
> Issue Type: Bug
> Components: KafkaConnect
> Affects Versions: 0.10.1.1
> Environment: Application running on Java 1.6
> Reporter: Aneesh
>
> I have an application running on Java 1.6 which cannot be upgraded.This
> application need to have interfaces to post (producer )messages to Kafka
> server remote box.Also receive messages as consumer .The code runs fine from
> my local env which is on java 1.7.But the same producer and consumer fails
> when executed within the application with the error
> Caused by: java.lang.UnsupportedClassVersionError: JVMCFRE003 bad major
> version; class=org/apache/kafka/clients/producer/KafkaProducer, offset=6
> Is there someway I can still do it ?
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