Unify testing structure/tools [JSTEP-10]

[JooHyukKim]

This issue serves as an umbrella issue for resolving [JSTEP-10: Unifying testing structure/tools]

TODO

• Add JUnit 5 dep + failing test utils
• Migrate modules to JUnit 5
• Migrate failing tests to /tofix and remove existing /failing funciontality
• Remove JUnit 4

[cowtowncoder]

So far converted:

• afterburner
• android-record
• guice
• guice7

Biggest remaining work is blackbird

[cowtowncoder]

And with @JooHyukKim's work, all the rest -- Blackbird, jakarta-xmlbind, jaxb, paranamer, OSGi -- also converted.

What remains is converting "failing" tests to "tofix" ones, and then promoting JUnit5 dependencies from sub-modules' pom.xmls back to parent pom.xml.

[cowtowncoder]

Whops. Still need to "mrbean".

[cowtowncoder]

Status:

• All modules converted to use JUnit5
• JUnit5 dependency at main level (no per-module deps)

so what remains is just

• Convert "failing" tests to "tofix" ones.

[JooHyukKim]

Filed last remaining pieces in two PR's "in order"! 👍🏼

[cowtowncoder]

Thanks! Will get these merged today.

[cowtowncoder]

Merged, closing.