Hardware: Any 64-bit capable Intel Mac

• RAM: 4GB, 2GB min
• HD: 3GB free space
• How to tell if your Mac is 64-bit capable
  • http://support.apple.com/kb/ht3696

  • sysctl hw |grep 64bit

OS: Mac OS X 10.7.0 or 10.6.8

• How to tell what version of Mac OS X you are running
  • Apple Menu () -> "About this Mac..."

  • sw_vers

• Where to get it
  • Apple Menu () -> "App Store..."

Xcode

• 4.1 required for Mac OS X 10.7.0
  • Where to get it
    • Apple Menu () -> "App Store...", free download
• 3.2.6 required for Mac OS X 10.6.8
  • Compiler flag fixes which correctly aligns the stack between function calls in 32-bit processes (3.2.6)
  • Where to get it
    • http://developer.apple.com (Mac Dev Center section)

      After you install Xcode, you will have to install "Java for Mac OS X 10.6 Update 6", "Java for Mac OS X 10.7 Update 1" or a later developer preview to correct headers in the JavaRuntimeSupport framework.

Java: "Java for Mac OS X 10.7 Update 1" or "Java for Mac OS X 10.6 Update 6"

• Required for new API added for OpenJDK
• Where to get it
  • 10.7: http://support.apple.com/kb/dl1421
  • 10.6: http://support.apple.com/kb/DL1360
• Apple is planning to issue a future OS software update for 10.7 which will deliver all new JavaRuntimeSupport API required by OpenJDK, so downloading Apple's Java will not be necessary.

Mercurial

• Required to get source
• Where to get it
  • http://mercurial.berkwood.com/

Jtreg

• Required only to run regression tests
• Where to get it
  • http://openjdk.java.net/jtreg/