I am trying to create a project using the Selenium sources downloaded from code.google.com, so I have to create the Java project using exiting sources.  Once that is done I get red flags on most of the sub-directories due to imports that are unresolved.

I then have to go through each one, add the needed library/libraries for that module, click OK, and wait for scanning projects to complete to verify that I chose the right one(s).  Then it starts all over again with the next one, assuming I didn't chose the wrong one or don't need some additional ones for the module I am trying to resolve the imports for.

Netbeans has the list of known libraries.  It should at least offer to scan them and add the needed libraries.  In cases where more than one library could resolve the import statement, where you have more than one version for example, it should let you make the choice between the different versions manually.

This would greatly aid in building a project using existing sources.

It would even be useful if there was a "Find Library" button in the Project Properties page for handling library addition and removal.  This is not just a Java situation, but would apply also to C, C++, etc.