Github user StephanEwen commented on a diff in the pull request: https://github.com/apache/flink/pull/4891#discussion_r146336544 --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/jobmaster/JobManagerServices.java --- @@ -116,8 +116,15 @@ public static JobManagerServices fromConfiguration( final String classLoaderResolveOrder = config.getString(CoreOptions.CLASSLOADER_RESOLVE_ORDER); + final String alwaysParentFirstLoaderString = --- End diff -- I think this could use some exception handling, for example when the parameter is null, or empty, or does not split.
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