Greg Harris created KAFKA-17117: ----------------------------------- Summary: Avoid instantiating classpath plugins when service loading plugins Key: KAFKA-17117 URL: https://issues.apache.org/jira/browse/KAFKA-17117 Project: Kafka Issue Type: Improvement Components: connect Affects Versions: 3.6.0 Reporter: Greg Harris
In KAFKA-14789 modifications were made to allow PluginClassLoaders to see all resource files of the parent DelegatingClassLoader and classpath, rather than selectively hiding some resources that were for ServiceLoader manifests. This has the effect that the ServiceLoader finds classpath plugins when searching in plugin locations, and the PluginScanner filters these plugins out by checking for classloader equality. This has some side-effects that are undesirable: * Classpath plugins may be instantiated with the thread context classloader set to a plugin classloader * Classpath plugins are instantiated multiple times, once for each plugin location * Exceptions from classpath plugins show up multiple times in the logs: KAFKA-17111 This change may require us to fork the ServiceLoader implementation, which is itself undesirable. -- This message was sent by Atlassian Jira (v8.20.10#820010)