This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
it's not hard enough to serve as a reliable source of anesthetics when you hit someone with it I'm afraid
Unless you've done something weird your code should work fine under the Tiger. There may be a few exceptions with strange but legal constructs using the ternary operator of method overloading but that's about all I can come up with quickly.