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ASF GitHub Bot commented on FLINK-6357: --------------------------------------- Github user NicoK commented on a diff in the pull request: https://github.com/apache/flink/pull/4169#discussion_r125910462 --- Diff: flink-java/src/main/java/org/apache/flink/api/java/utils/ParameterTool.java --- @@ -548,6 +565,7 @@ protected Object clone() throws CloneNotSupportedException { public ParameterTool mergeWith(ParameterTool other) { ParameterTool ret = new ParameterTool(this.data); ret.data.putAll(other.data); + ret.unrequestedParameters.addAll(other.data.keySet()); --- End diff -- The docs should probably state how unrequested parameters are handles here, i.e. the returned `ParameterTool` will have have its unrequested parameters reset. An alternative idiom may be to actually keep the old `unrequestedParameters` in `ret` and merge them with `other.unrequestedParameters`. What do you thinks makes most sense? > ParameterTool get unrequested parameters > ---------------------------------------- > > Key: FLINK-6357 > URL: https://issues.apache.org/jira/browse/FLINK-6357 > Project: Flink > Issue Type: Improvement > Components: Java API > Affects Versions: 1.3.0 > Reporter: Greg Hogan > Assignee: Greg Hogan > Priority: Minor > > The Gelly examples use {{ParameterTool}} to parse required and optional > parameters. In the latter case we should detect if a user mistypes a > parameter name. I would like to add a {{Set<String> > getUnrequestedParameters()}} method returning parameter names not requested > by {{has}} or any of the {{get}} methods. -- This message was sent by Atlassian JIRA (v6.4.14#64029)