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Trunk build from Nov 10, JDK 1.5.0, testing with a small project versioned using CVS (~250) I see hundreds of copies of 'Up-to-date' string and tens of 'Locally Modified', 'Locally added' that represents statuses of files after a refresh. Since the set of statuses is very limited it would be better to share small set of (interned) string. Every 'Up-to-date' string eats 56 bytes.
The reason seems to be, that the status is parsed from an output of an external command. This generates a unique string for every file. Intern will fix this.
FIXED in FileProperties