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Arvid Heise commented on FLINK-23022: ------------------------------------- Sorry you are right, it definitively loads from flink cl first. So we can leave the ticket as is. Still I'd like to limit it to a small white-list of classes instead of complete packages. > Plugin classloader settings do not work as described > ---------------------------------------------------- > > Key: FLINK-23022 > URL: https://issues.apache.org/jira/browse/FLINK-23022 > Project: Flink > Issue Type: Bug > Components: API / Core > Reporter: Dawid Wysakowicz > Priority: Major > > The options {{plugin.classloader.parent-first-patterns}} are documented as > all patterns that are put there should be loaded from the Flink classloader > instead of the plugin classloader. > However, the way they work is that they define a set of patterns allowed to > be pulled from the parent classloader. The plugin classloader takes > precedence in all cases. And a class can be loaded from the parent > classloader only if it matches the pattern in one of the aforementioned > options. -- This message was sent by Atlassian Jira (v8.3.4#803005)