* @param algorithms  The checksum algorithms to use, must not be {@code null}.
     * @return The calculated checksums, indexed by algorithms, never {@code null}.
     * @throws NullPointerException if passed in any parameter is {@code null}.
     */
    @Nonnull
    Map<ChecksumAlgorithm, String> calculate(@Nonnull byte[] data, @Nonnull Collection<ChecksumAlgorithm> algorithms);

    /**

            throw new ChecksumAlgorithmServiceException("unsupported algorithm", e);
        }
    }

    @Override
    public Map<ChecksumAlgorithm, String> calculate(byte[] data, Collection<ChecksumAlgorithm> algorithms) {
        nonNull(data, "data");
        nonNull(algorithms, "algorithms");
        try {
            return calculate(new ByteArrayInputStream(data), algorithms);
        } catch (IOException e) {

import java.util.Map;
import java.util.Objects;

/**
 * The domain-specific model merger for the Maven POM, overriding generic code from parent class when necessary with
 * more adapted algorithms.
 *
 */
public class MavenModelMerger extends org.apache.maven.internal.impl.model.MavenModelMerger {

    /**
     * Merges the specified source object into the given target object.
     *

import org.apache.maven.api.model.Site;
import org.apache.maven.model.v4.MavenMerger;

/**
 * The domain-specific model merger for the Maven POM, overriding generic code from parent class when necessary with
 * more adapted algorithms.
 *
 */
public class MavenModelMerger extends MavenMerger {

    /**
     * The hint key for the child path adjustment used during inheritance for URL calculations.
     */

    // Helpers
    // ----------------------------------------------------------------------

    /**
     * Merges one DOM into another, given a specific algorithm and possible override points for that algorithm.<p>
     * The algorithm is as follows:
     * <ol>
     * <li> if the recessive DOM is null, there is nothing to do... return.</li>

      <version>1.0.0+</version>
      <description>Mapping information for a single plugin within this group.</description>
      <comment>NOTE: plugin version is _NOT_ included here, since it is resolved using a separate algorithm in plugins' artifact.</comment>
      <fields>
        <field>
          <name>name</name>
          <type>String</type>
          <required>true</required>
          <version>1.0.0+</version>

     * be null instead of the actual module name. This option can avoid the cost of reading module
     * descriptors when only the modules existence needs to be verified.</p>
     *
     * <p><b>Algorithm:</b>
     * If the given path is a directory, then there is a choice:
     * </p>
     * <ul>
     *   <li><b>Package hierarchy:</b> if a {@code module-info.class} file is found at the root,

        }

        return model;
    }

    /**
     * Interpolates all expressions in the src parameter.
     * <p>
     * The algorithm used for each expression is:
     * <ul>
     *   <li>If it starts with either "pom." or "project.", the expression is evaluated against the model.</li>
     *   <li>If the value is null, get the value from the context.</li>

is to retrieve an object reference to the LogFactory instance that will be used to create Log instances for this application. This is normally accomplished by calling the static getFactory() method. This method implements the following discovery algorithm to select the name of the LogFactory implementation class this application wants to use: Check for a system property named org.apache.commons.logging.LogFactory. Use the JDK 1.3 JAR Services Discovery mechanism (see http://java.sun.com/j2se/1.3/...

                file.deleteOnExit();
            }
        }
    }

    private ChecksumObserver addChecksumObserver(Wagon wagon, String algorithm) throws TransferFailedException {
        try {
            ChecksumObserver checksumObserver = new ChecksumObserver(algorithm);
            wagon.addTransferListener(checksumObserver);
            return checksumObserver;
        } catch (NoSuchAlgorithmException e) {