API Tools 3.5M5 New and Noteworthy

API tools analyzes use of system libraries and creates problems when code accesses members that may not be present at runtime. For example, when a plug-in specifies a required execution environment of J2SE-1.4, but the only JRE installed in the workspace for building is J2SE-1.6, it is possible to access methods that exist in 1.6, but not in 1.4. In order for the validation to work, you must install relevant execution environment descriptions from an update site.

The API Errors/Warnings preference page displays installed execution environments. Use the "install them now" hyperlink to install additional environments via the software updates dialog.