void libraryRootsChanged(@Nullable @Nls String presentableLibraryName,
                           @NotNull Collection<? extends VirtualFile> oldRoots,
                           @NotNull Collection<? extends VirtualFile> newRoots,
                           @NotNull String libraryNameForDebug);
void libraryRootsChanged(@Nullable @Nls String presentableLibraryName,
                           @NotNull Collection<? extends VirtualFile> oldRoots,
                           @NotNull Collection<? extends VirtualFile> newRoots,
                           @NotNull String libraryNameForDebug)