> +
> + @Override
> + public URI apply(@Nullable Object from) {
> + checkArgument(from != null && from instanceof String, "you must
> specify a region, as a String argument");
> + Map<String, Supplier<URI>> regionToEndpoint =
> regionToEndpointSupplier.get();
> + checkState(!regionToEndpoint.isEmpty(), "no region name to endpoint
> mappings configured!");
> + checkArgument(regionToEndpoint.containsKey(from),
> + "requested location %s, which is not in the configured
> locations: %s", from, regionToEndpoint);
> + String uri = regionToEndpoint.get(from).get().toString();
> +
> + /**
> + * A quick fix to ensure Neutron works with endpoint definitions that
> are not version-agnostic.
> + */
> + if (uri.endsWith("/v2.0")) {
> + try {
> + return new URI(uri.substring(0, uri.length() - 5));
URI.create and you don't need to swallow the exception!
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