Bug 302152 New path variable created unexpectedly
One of the latest 3.6 IBuilds Steps: 1) Create a general project (let's call is 'project1') 2) Go to Project Properties and make sure that there are only dynamic path variables 2) Drag and drop a folder with a subfolder and files inside to 'project1' In my case it is c:/Folder > SubFolder > a.txt 3) In the "File and Folder Import" dialog, choose 'Automatic' (or later 'Default') and 'Recreate with Virtual Folders and Links' 4) Go to Project Properties again and see that a new variable is added ('C' which is defined relatively to PROJECT_LOC) 5) Open Properties for myProject/Folder/SubFolder/a.txt and see that its location is defined using this new 'C' variable. I should be at least asked if I want Eclipse to create any variables for me.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/LinkedResourceEditor.java
if (variable == -1) {
				amountLeft++;
				remaining.add(res);
			}
		}
		resources = remaining;
		if (amountLeft > 1) {
			
			it = resources.iterator();
			IPath commonPath = null;
			while (it.hasNext()) {
				IResource res = (IResource) it.next();
				IPath location = res.getLocation();
				if (commonPath == null)
					commonPath = location;
				else {
					int count = commonPath.matchingFirstSegments(location);
					if (count < commonPath.segmentCount())
						commonPath = commonPath.removeLastSegments(commonPath
								.segmentCount()
								- count);
				}
				if (commonPath.segmentCount() == 0)
					break;
			}
			if (commonPath.segmentCount() > 1) {
				String variableName = getSuitablePathVariable(commonPath);
				try {
					fProject.getPathVariableManager().setValue(variableName, fProject,
							URIUtil.toURI(commonPath));