Backwards compatibility issue?

[Daniel Zwolenski]

While trying to narrow down the rendering/performance/whatever issues with
the game, I just opened up the JAR that I'd previously built for it:
https://bytebucket.org/rbair/fx-games/wiki/release/defender-jfx.jar

If I run this with java version "1.7.0_13" it works fine.

If I run this with java version "1.7.0_21" none of the styles get loaded.

Massive backwards compatibility fail between minor build versions?