empty string nav rule throwing exception error

[irishpack]

HI,

We are converting to Primefaces 6.2.16 and for some reason when a an empty string is returned a warning message is being thrown. We are using websphere 9.0.10 and it uses Myfaces 2.2. The message is "No navigation case match for viewId for empty string". Does anybody have an idea what is wrong. I can't find anything when i search. By the way, we still want a warning if a non-empty string is an improper nav rule.

Thanks in advance.

[tandraschko]

Can you post a example to reproduce?