When I use these 2 hints: "Create Local Var" and "Split into declaration and assignment", any further use of this variable is not recognized by the IDE, I have to make some little and intentional syntax error (to the variable just created) to be recognized.

Example: 
Have one String Class parameter like:

public class Something  {
	private String description; //this will be removed and declared as local wherever is used
	private String detail; //this too
	private void method() {
		...
		//Here is where I will move the locals declarations after after split it
		//Note: local variables are not initialized to null, just declared
		try {
			...
			description = " bla bla"; //here is when Hints are applied here, after removing the private declaration
			detail = ..... //here is when Hints are applied here, after removing the private declaration
			if(description.isEmpty() || detail.isEmpty()) {
				throws new XXXException(...);
			}
			new UserLog(user, description, detail); // IDE error "cannot find symbol"
		} catch (XXXException ex) {
			Log.trace("bla bla {}, {}", description, detail); // IDE error "cannot find symbol"
		}
	}
}


Product Version = NetBeans IDE 8.2 (Build 201609300101)
Operating System = Windows 10 version 10.0 running on amd64
Java; VM; Vendor = 1.8.0_131
Runtime = Java HotSpot(TM) 64-Bit Server VM 25.131-b11

Reproducibility: Happens sometimes, but not always