Github user FSchumacher commented on the issue:
https://github.com/apache/jmeter/pull/394
Thanks for your contribution and the detailed description.
Is there any reason, that you don't want to specify a default value for a
property that can be undefined? Look for example at `Example3BeanInfo.java`.
Other than that it seems OK to include the patch, as there is a code path
into `FieldStringEditor` that would allow `null` values.---
