I enjoyed reading this chapter. It was cool seeing Pixel Perfection in written form after you described it verbally at The Server Side Java Symposium.

page 83 - listing 5.2 - is the template declaration supposed to be misindented?
page 89 - I read this sentence three times trying to figure out what the question was before realizing it was a statement: "That's a lot of conditionals so let's talk about what we could do about this problem?"
page 94 - I was all set to note "class path" should be one word when I noticed even Oracle uses it inconsistently.
In section 5.6, is the problem that the test is slow, flaky or both? In the example, you noted the tests still fail 10% of the time even after waiting half a second. The fix eliminates the flaky part, but wouldn't the test still take half a second sometimes? Or is the point that the test is slower than it sometimes should be as opposed to raw speed?

I really like the technique of using // to force Eclipse formatting to respect new lines!