Bug 97167 wrong proposals for linked folder in New Java Project>Link Additional Resource
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/newsourcepage/LinkFolderDialog.java
private final class FolderNameField extends Observable implements IDialogFieldListener {
        private StringDialogField fNameDialogField;
        
        public FolderNameField(Composite parent, int numOfColumns) {
            createControls(parent, numOfColumns);
        }
        
        private void createControls(Composite parent, int numColumns) {
            fNameDialogField= new StringDialogField();
            fNameDialogField.setLabelText(NewWizardMessages.LinkFolderDialog_folderNameGroup_label); 
            fNameDialogField.doFillIntoGrid(parent, 2);