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Check the Java or .NET JIRA issue tracker for an existing ticket. If there is an existing JIRA issue, feel free to add a comment. If there is no existing JIRA issue for the bug, create a JIRA account and add a new ticket. JIRA will automatically send an email to the Developers mailing list to notify list subscribers of the issue.
Check the Java or .NET JIRA issue tracker for an existing request for a new feature or improvement. If there is an existing request, feel free to add a comment or vote for the request. If there is no existing request, you can to subscribe to the Developers mailing list and send an email describing the feature request.