// we allocate buffers rounded up to the closest size class.
	c := len(b) + n // ensure enough space for n elements
	if c < 2*cap(b) {
		// The growth rate has historically always been 2x. In the future,
		// we could rely purely on append to determine the growth rate.
		c = 2 * cap(b)
	}
	b2 := append([]byte(nil), make([]byte, c)...)
	i := copy(b2, b)
	return b2[:i]
}

 *
 */
public class BuildFailure extends BuildSummary {

    /**
     * The cause of the build failure.
     */
    private final Throwable cause;

    /**
     * Creates a new build summary for the specified project.
     *
     * @param project The project being summarized, must not be {@code null}.
     * @param time The build time of the project in milliseconds.

        errorPoms = Set.copyOf(errorPoms);
    }

    /**
     * Creates a successful result with the specified processed and modified POMs.
     */
    public static UpgradeResult success(Set<Path> processedPoms, Set<Path> modifiedPoms) {
        return new UpgradeResult(processedPoms, modifiedPoms, Collections.emptySet());
    }

    /**
     * Creates a failure result with the specified processed POMs and error POMs.
     */

    private Model pom;

    private List<RemoteRepository> repositories = Collections.emptyList();

    private RepositorySystemSession session;

    /**
     * Creates an empty request.
     */
    public DefaultPluginVersionRequest() {}

    /**
     * Creates a request for the specified plugin by copying settings from the specified build session. If the session
     * has a current project, its plugin repositories will be used as well.

    private TestUtils() {
        // Utility class
    }

    /**
     * Creates a mock UpgradeContext with default settings.
     *
     * @return a mock UpgradeContext
     */
    public static UpgradeContext createMockContext() {
        return createMockContext(Paths.get("/project"));
    }

    /**
     * Creates a mock UpgradeContext with the specified working directory.
     *

    /**
     * Creates a new build summary for the specified project.
     *
     * @param project The project being summarized, must not be {@code null}.
     * @param time The build time of the project in milliseconds.
     */
    public BuildSuccess(MavenProject project, long time) {
        this(project, Duration.ofMillis(time));
    }

    /**
     * Creates a new build summary for the specified project.

     */
    private final String artifactId;

    /**
     * The version of the unresolvable model.
     */
    private final String version;

    /**
     * Creates a new exception with specified detail message and cause.
     *
     * @param message The detail message, may be {@code null}.
     * @param groupId The group id of the unresolvable model, may be {@code null}.

public class StringModelSource extends StringSource implements ModelSource {

    /**
     * Creates a new model source backed by the specified string.
     *
     * @param pom The POM's string representation, may be empty or {@code null}.
     */
    public StringModelSource(CharSequence pom) {
        this(pom, null);
    }

    /**
     * Creates a new model source backed by the specified string.
     *

    propertyNames.mapNotNull { propertyName ->
        stringPropertyOrNull(propertyName)?.let { propertyValue ->
            propertyName to propertyValue
        }
    }.toMap()

/**
 * Creates a [Provider] that returns `true` when this [Provider] has a value
 * and `false` otherwise. The returned [Provider] always has a value.
 * @see Provider.isPresent
 */
private

     * @return the terminal width
     */
    int getTerminalWidth();

    /**
     * Creates a new message builder.
     * @return a new message builder
     */
    @Nonnull
    MessageBuilder builder();

    /**
     * Creates a new message builder of the specified size.
     * @param size the initial size of the message builder buffer
     * @return a new message builder