Fix BZ 70001: _jspx_dependants contains non-deterministic absolute JA…

[jluehe]

…R paths for taglibs resolved from external JARs

[rmaucher]

It looks good to me. The situation it covers is not supposed to be the main usual case obviously (never been a fan of the "external shared jar" use case, but I also got the comments "I have 1000 webapps" in the past, so ...) but it's a nice improvement. Let's see if there are any final objections to this.

[jluehe]

It looks good to me. The situation it covers is not supposed to be the main usual case obviously (never been a fan of the "external shared jar" use case, but I also got the comments "I have 1000 webapps" in the past, so ...) but it's a nice improvement. Let's see if there are any final objections to this.

Thank you, @rmaucher!

[jluehe]

Hi @rmaucher, just circling back on this to see if it can be merged and included in the next release - or would you rather wait a bit longer? Thank you!

[markt-asf]

LGTM. I'll merge, run the TCKs tests and back-port assuming there are no issues.