Application of SPENGO to Bonita Community

I am trying to apply SPNEGO to Bonita Community 7.5.4.

Samples of SPENGO are showed on the link below.

First, I implemented.

Second, I am trying to apply to Bonita now.

In Bonita, there are multiple folders containing web.xml or named lib , and I do not know how to solve it.

Which folders are valid?
And how is user authentication done in Bonita?