throw new ExtensionResolutionException(extension, e);
        }
    }

    private static UnaryOperator<String> createInterpolator(MavenExecutionRequest request) {
        Interpolator interpolator = new DefaultInterpolator();
        UnaryOperator<String> callback = v -> {
            String r = request.getUserProperties().getProperty(v);
            if (r == null) {

        } catch (PluginResolutionException | InterpolatorException e) {
            throw new ExtensionResolutionException(extension, e);
        }
    }

    private UnaryOperator<String> createInterpolator(MavenExecutionRequest request) {
        UnaryOperator<String> callback = v -> {
            String r = request.getUserProperties().getProperty(v);
            if (r == null) {

        }
    }

    private SimpleProblemCollector validate(String pom) throws Exception {
        return validateEffective(pom, UnaryOperator.identity());
    }

    private SimpleProblemCollector validateRaw(String pom) throws Exception {
        return validateRaw(pom, UnaryOperator.identity());
    }

    @SuppressWarnings("SameParameterValue")

import java.io.File;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.function.UnaryOperator;

import com.google.inject.AbstractModule;
import com.google.inject.Module;
import org.apache.maven.api.Constants;
import org.apache.maven.api.ProtoSession;
import org.apache.maven.api.cli.Logger;

    private List<String> footer;
    private Path location;
    private UnaryOperator<String> callback;
    boolean substitute = true;
    boolean typed;

    public MavenProperties() {}

    public MavenProperties(Path location) throws IOException {
        this(location, null);
    }

    public MavenProperties(Path location, UnaryOperator<String> callback) throws IOException {
        this.location = location;

    private List<String> footer;
    private Path location;
    private UnaryOperator<String> callback;
    boolean substitute = true;
    boolean typed;

    public MavenProperties() {}

    public MavenProperties(Path location) throws IOException {
        this(location, null);
    }

    public MavenProperties(Path location, UnaryOperator<String> callback) throws IOException {
        this.location = location;

import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Objects;
import java.util.Properties;
import java.util.function.UnaryOperator;
import java.util.stream.Collectors;

import org.apache.maven.api.Constants;
import org.apache.maven.api.annotations.Nullable;
import org.apache.maven.api.cli.CoreExtensions;

import java.util.LinkedHashSet;
import java.util.List;
import java.util.ListIterator;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.function.Consumer;
import java.util.function.UnaryOperator;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.DefaultParser;
import org.apache.commons.cli.DeprecatedAttributes;
import org.apache.commons.cli.HelpFormatter;

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Objects;
import java.util.Properties;
import java.util.function.Consumer;
import java.util.function.UnaryOperator;

import org.apache.maven.api.Constants;
import org.apache.maven.api.ProtoSession;
import org.apache.maven.api.annotations.Nullable;
import org.apache.maven.api.cli.Invoker;

import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.RandomAccess;
import java.util.Spliterator;
import java.util.function.Consumer;
import java.util.function.UnaryOperator;
import java.util.stream.Collector;
import org.jspecify.annotations.Nullable;

/**
 * A {@link List} whose contents will never change, with many other important properties detailed at
 * {@link ImmutableCollection}.