java.lang.NoClassDefFoundError

Hello,

I'm trying to run this connector to sync data from a compacted kafka topic to an s3 location by key. After running the "gradle build" and adding it the the connect node packages. We're seeing a strange issue when starting a connector.

WARN unhandled due to prior sendError (org.eclipse.jetty.server.HttpChannelState:787)
javax.servlet.ServletException: org.glassfish.jersey.server.ContainerException: java.lang.NoClassDefFoundError: io/aiven/kafka/connect/common/config/AivenCommonConfig
at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:410)
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:346)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:358)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:311)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:205)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:554)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1440)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:505)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1355)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:234)
at org.eclipse.jetty.server.handler.StatisticsHandler.handle(StatisticsHandler.java:181)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.Server.handle(Server.java:516)
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:487)
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:732)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:479)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.onFillable(SslConnection.java:555)
at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:410)
at org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:164)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: org.glassfish.jersey.server.ContainerException: java.lang.NoClassDefFoundError: io/aiven/kafka/connect/common/config/AivenCommonConfig
at org.glassfish.jersey.servlet.internal.ResponseWriter.rethrow(ResponseWriter.java:255)
at org.glassfish.jersey.servlet.internal.ResponseWriter.failure(ResponseWriter.java:237)
at org.glassfish.jersey.server.ServerRuntime$Responder.process(ServerRuntime.java:438)
at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:263)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:244)
at org.glassfish.jersey.internal.Errors.process(Errors.java:292)
at org.glassfish.jersey.internal.Errors.process(Errors.java:274)
at org.glassfish.jersey.internal.Errors.process(Errors.java:244)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:265)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:234)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:684)
at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:394)
... 39 more

I first checked this class in the source code. io/aiven/kafka/connect/common/config/AivenCommonConfig - but the only definition i see is an import on line 34 in /src/main/java/o/aiven/kafka/connect/s3/config. The file path for the missing class doesn't exist and i can't find anywhere that is defining it or packaging it as a calss. Does this class exist? Or am I overlooking something obvious?

Connector config is -
{
"name": "Avien_S3_sink_conncector",
"config":
{
"connector.class": "io.aiven.kafka.connect.s3.AivenKafkaConnectS3SinkConnector",
"tasks.max": "8",
"key.converter": "org.apache.kafka.connect.storage.StringConverter",
"value.converter": "org.apache.kafka.connect.json.JsonConverter",
"topics": "TP.TOPIC.NAME.LATEST",
"value.converter.schemas.enable": "false",
"format.output.type" : "json",
"aws.s3.bucket.name" : "hs-topic-bucket",
"aws.s3.region": "us-east-1",
"format.output.fields" : "key,value",
"file.name.template" : "{{topic}}-{{partition}}-{{key}}",
"aws.sts.role.arn" : "arn:aws:iam::*****:role/***/KAFKACONNECT",
"s3.credentials.provider.class": "io.confluent.connect.s3.auth.AwsAssumeRoleCredentialsProvider",
"aws.sts.role.session.name" : "avienconnect"
}
}