Problem: dyld: Symbol not found: _JRSUIGetKey while trying to execute the GUI tools for Building a Modern Computer from First Principles (book).
Issue: You've installed a JDK 1.7 from Oracle because you do some sort of JVM language development and Apple only supports Java 1.6. Installing a 1.7 JDK removes the 1.6 Apple version, or when you upgraded to Mavericks you never bothered to install the Apple JDK 1.6.
Solution: Run a Linux VM with a GUI with a JDK 1.6 or 1.7. It works. Trying to get Apple-approved JDK 1.6 alongside a modern 1.7 JDK on OSX Mavericks is a nightmare with sanity draining effects.