// Most of the time the artifactType registry has the same effect on the variant's attributes, but this isn't guaranteed.
            // It might be better to tighten this up by either requiring a single artifactType registry for the entire build or eliminating this feature
            // entirely.

    t.nestLeft(2).right == "a"
    t.nestRight(2).left == 1
    t.nestRight(2).right == Pair.of(2, "a")

    t.pushLeft(2).left == 2
    t.pushLeft(2).right == t
    t.pushRight(2).left == t
    t.pushRight(2).right == 2

    t.mapLeft { it + 1 }.left == 2
    t.mapLeft { it + 1 }.right == "a"
    t.mapRight { it * 2 }.left == 1
    t.mapRight { it * 2 }.right == "aa"

    }

    public static boolean canBeMerged(String left, String right) {
        if (left == null || right == null) {
            return true;
        } else {
            return normalized(left).equals(normalized(right));
        }
    }

    public static boolean canBeMerged(File left, File right) {
        if (left == null || right == null) {
            return true;
        } else {

In the *execution phase*, Gradle runs tasks.

Gradle uses the task execution graphs generated by the configuration phase to determine which tasks to execute.

[[sec:task_execution]]

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    font-size: 10pt;
}

th, td {
    white-space: nowrap;
    padding-top: 5px;
    padding-bottom: 5px;
    padding-left: 12px;
    padding-right: 12px;
    text-align: left;
    vertical-align: bottom;
}

th.numeric, td.numeric {
    text-align: right;
}

.empty {
    color: #a0a0a0;
    font-size: 8pt;
}

.more-detail {
    color: #a0a0a0;
    font-size: 8pt;
}

/**
 * Represents values with two possibilities.
 *
 * @param <L> the left type.
 * @param <R> the right type.
 */
public abstract class Either<L, R> {

    public static <L, R> Either<L, R> left(L value) {
        return new Left<>(value);
    }

    public static <L, R> Either<L, R> right(R value) {
        return new Right<>(value);
    }

    /**
     * Take the value if this is a left.
     */

package org.sample.numberutils;

public class Numbers {
   public static int add(int left, int right) { return left + right; }

        }
    }

    private void rerunReusingStoredConfigurationCacheEntry(List<String> args, List<String> flags) {
        // Rerun tasks. If the task is up-to-date, then its actions aren't executed.
        // This might hide issues with Groovy closures, as the methods referenced inside the closure are resolved dynamically.
        try {
            createExecuter(args, flags).withArgument("--rerun-tasks").run();

        def mergedSideEffect = Mock(ValueSupplier.SideEffect)

        def left = Providers.of("left").withSideEffect(leftSideEffect)
        def right = Providers.of("right").withSideEffect(rightSideEffect)

        def provider = new MergeProvider([left, right]).withSideEffect(mergedSideEffect)

        when:
        provider.calculateValue(ValueSupplier.ValueConsumer.IgnoreUnsafeRead)

<5> `includeBuild()` method from the link:{kotlinDslPath}/gradle/org.gradle.api.initialization/-settings/index.html[Settings API]
=====

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