NetBeans losing package information when crashing
I'm currently writing a program in NetBeans with a Main class and a half-dozen helper classes. At one point, my computer crashed and I had to restart. Since then, NetBeans has been reporting "symbol not found" errors whenever I refer to one class in the project package from another, including places where I'd used those references prior to the crash. I can still build and run the project as normal, and it runs without a hitch, but these erroneous error labels interfere with debugging of actual errors in the code.
I'm not sure how NetBeans handles storing which classes I've created inside the project package, but loosely speaking, how can I force NetBeans to refresh its understanding of my package?
Example code to follow.