Error parsing request header. Our best guess of the apiKey is: -1

Connectors & Integrations
2

Ran it on a different box, getting similar error, but not same:

[oracle@OracleGG kafkaproxy-1.0-SNAPSHOT]$ bin/kafkaproxy proxy-example.properties

[main] INFO org.apache.kafka.solace.kafkaproxy.ProxyReactor - Listening for incoming connections on PLAINTEXT localhost/127.0.0.1:9092

[Kafka_Proxy_Reactor] INFO org.apache.kafka.solace.kafkaproxy.ProxyReactor - New incoming connection request on PLAINTEXT localhost/127.0.0.1:9092 from /127.0.0.1:57316

[Kafka_Proxy_Reactor] INFO org.apache.kafka.solace.kafkaproxy.ProxyChannel - Cleaning up channel (remote /127.0.0.1:57316) due to Request parse did not work: org.apache.kafka.common.errors.InvalidRequestException: Invalid API key METADATA, expecting handshake request