for (Repository repository : repositories) {
            validateStringNotEmpty(
                    prefix, prefix2, "id", problems, Severity.ERROR, Version.V20, repository.getId(), null, repository);

            if (validateStringNotEmpty(
                    prefix,
                    prefix2,
                    "[" + repository.getId() + "].url",
                    problems,

          GeneralSpliterator<E> spliterator, Consumer<? super E> consumer) {
        for (GeneralSpliterator<E> prefix = trySplitTestingSize(spliterator);
            prefix != null;
            prefix = trySplitTestingSize(spliterator)) {
          forEach(prefix, consumer);
        }
        long size = spliterator.getExactSizeIfKnown();
        long[] counter = {0};
        spliterator.forEachRemaining(

    }

    private static Metadata createRepositoryMetadata(PluginInfo pluginInfo) {
        return Metadata.newBuilder()
                .plugins(List.of(Plugin.newBuilder()
                        .prefix(pluginInfo.goalPrefix)
                        .artifactId(pluginInfo.artifactId)
                        .name(pluginInfo.name)
                        .build()))
                .build();
    }

    @Override

    Builder<R, C, V> combine(Builder<R, C, V> other) {
      this.cells.addAll(other.cells);
      return this;
    }

    /**
     * Returns a newly-created immutable table.
     *
     * <p>Prefer the equivalent method {@link #buildOrThrow()} to make it explicit that the method
     * will throw an exception if there are duplicate key pairs. The {@code build()} method will
     * soon be deprecated.
     *

     * order in which entries were inserted into the builder, unless {@link #orderEntriesByValue}
     * was called, in which case entries are sorted by value.
     *
     * <p>Prefer the equivalent method {@link #buildOrThrow()} to make it explicit that the method
     * will throw an exception if there are duplicate keys or values. The {@code build()} method
     * will soon be deprecated.
     *

    /**
     * Returns immutable system properties to use for interpolation. The system properties are collected from the
     * runtime environment such as {@link System#getProperties()} and environment variables
     * (prefixed with {@code env.}).
     *
     * @return the system properties, never {@code null}
     */
    @Nonnull
    Map<String, String> getSystemProperties();

    /**

   *
   * <p>The returned navigable set will be serializable if the specified navigable set is
   * serializable.
   *
   * <p><b>Java 8+ users and later:</b> Prefer {@link Collections#unmodifiableNavigableSet}.
   *
   * @param set the navigable set for which an unmodifiable view is to be returned
   * @return an unmodifiable view of the specified navigable set
   * @since 12.0

    }

    @Provides
    static Session newSession(RepositorySystem system, Lookup lookup) {
        Map<String, String> properties = new HashMap<>();
        // Env variables prefixed with "env."
        System.getenv().forEach((k, v) -> properties.put("env." + k, v));
        // Java System properties
        System.getProperties().forEach((k, v) -> properties.put(k.toString(), v.toString()));

      System.arraycopy(other.values, 0, this.values, this.size, other.size);
      size += other.size;
      return this;
    }

    /**
     * Returns a newly-created immutable sorted map.
     *
     * <p>Prefer the equivalent method {@link #buildOrThrow()} to make it explicit that the method
     * will throw an exception if there are duplicate keys. The {@code build()} method will soon be
     * deprecated.
     *

     * in which entries were inserted into the builder, unless {@link #orderEntriesByValue} was
     * called, in which case entries are sorted by value.
     *
     * <p>Prefer the equivalent method {@link #buildOrThrow()} to make it explicit that the method
     * will throw an exception if there are duplicate keys. The {@code build()} method will soon be
     * deprecated.
     *