[KAFKA-16093] Spurious warnings logged to stderr about empty path annotations and providers not implementing provider interfaces

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.6.0, 3.7.0, 3.6.1, 3.6.2, 3.8.0
• Fix Version/s: 3.6.2, 3.8.0
• Component/s: connect
• Assignee: Chris Egerton
• Reporter: Chris Egerton
• Created: 08/Jan/24 18:48
• Updated: 10/Jan/24 14:47
• Resolved: 10/Jan/24 14:03

Description

Some warnings get logged to stderr on Connect startup. For example:

Jan 08, 2024 1:48:18 PM org.glassfish.jersey.internal.inject.Providers checkProviderRuntime

WARNING: A provider org.apache.kafka.connect.runtime.rest.resources.RootResource registered in SERVER runtime does not implement any provider interfaces applicable in the SERVER runtime. Due to constraint configuration problems the provider org.apache.kafka.connect.runtime.rest.resources.RootResource will be ignored.

Jan 08, 2024 1:48:18 PM org.glassfish.jersey.internal.inject.Providers checkProviderRuntime

WARNING: A provider org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource registered in SERVER runtime does not implement any provider interfaces applicable in the SERVER runtime. Due to constraint configuration problems the provider org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource will be ignored.

Jan 08, 2024 1:48:18 PM org.glassfish.jersey.internal.inject.Providers checkProviderRuntime

WARNING: A provider org.apache.kafka.connect.runtime.rest.resources.InternalConnectResource registered in SERVER runtime does not implement any provider interfaces applicable in the SERVER runtime. Due to constraint configuration problems the provider org.apache.kafka.connect.runtime.rest.resources.InternalConnectResource will be ignored.

Jan 08, 2024 1:48:18 PM org.glassfish.jersey.internal.inject.Providers checkProviderRuntime

WARNING: A provider org.apache.kafka.connect.runtime.rest.resources.ConnectorPluginsResource registered in SERVER runtime does not implement any provider interfaces applicable in the SERVER runtime. Due to constraint configuration problems the provider org.apache.kafka.connect.runtime.rest.resources.ConnectorPluginsResource will be ignored.

Jan 08, 2024 1:48:18 PM org.glassfish.jersey.internal.inject.Providers checkProviderRuntime

WARNING: A provider org.apache.kafka.connect.runtime.rest.resources.LoggingResource registered in SERVER runtime does not implement any provider interfaces applicable in the SERVER runtime. Due to constraint configuration problems the provider org.apache.kafka.connect.runtime.rest.resources.LoggingResource will be ignored.

Jan 08, 2024 1:48:19 PM org.glassfish.jersey.internal.Errors logErrors

WARNING: The following warnings have been detected: WARNING: The (sub)resource method listLoggers in org.apache.kafka.connect.runtime.rest.resources.LoggingResource contains empty path annotation.

WARNING: The (sub)resource method listConnectors in org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource contains empty path annotation.

WARNING: The (sub)resource method createConnector in org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource contains empty path annotation.

WARNING: The (sub)resource method listConnectorPlugins in org.apache.kafka.connect.runtime.rest.resources.ConnectorPluginsResource contains empty path annotation.

WARNING: The (sub)resource method serverInfo in org.apache.kafka.connect.runtime.rest.resources.RootResource contains empty path annotation.

These are benign, but can confuse and even frighten new users.

Issue Links

• split to: KAFKA-16108 Backport fix for KAFKA-16093 to 3.7
• links to: GitHub Pull Request #15149