Provides an implementation of a source locator for the Java debug model.
Package Specification
  This package provides a source locator for the Java debug model. The source 
  locator prompts the user for source, when source cannot be found on the source 
  lookup path.
  These JavaUISourceLocator and JavaSourceLookupDialog 
  have been deprecated in Eclipse 3.0. Source lookup facilities are now 
  provided by the debug platform - see org.eclipse.debug.core.sourcelookup. 
  Source lookup support specific to the Java debugger is now provided in org.eclipse.jdt.launching.sourcelookup.containers. 
  The user interface for source lookup is provided by org.eclipse.debug.ui.sourcelookup.