* if any. Hence, the list returned by this method depends on which lifecycle step of the build was it invoked.
     * The head of returned list is result of {@link Project#getArtifacts()} method, so same applies here: the list can have
     * minimum of one element. The maximum number of elements is in turn dependent on build configuration and lifecycle

@Named
@Singleton
public class DefaultMetadataReader implements MetadataReader {

    public Metadata read(File input, Map<String, ?> options) throws IOException {
        Objects.requireNonNull(input, "input cannot be null");

        return read(Files.newInputStream(input.toPath()), options);
    }

    public Metadata read(Reader input, Map<String, ?> options) throws IOException {

        Metadata recessive = read(existing);

        merge(recessive);

        write(result, metadata);

        merged = true;
    }

    @Override
    public boolean isMerged() {
        return merged;
    }

    protected abstract void merge(Metadata recessive);

    static Metadata read(Path metadataPath) throws RepositoryException {

import org.apache.maven.plugin.descriptor.Parameter;
import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator;
import org.codehaus.plexus.configuration.PlexusConfiguration;

/**
 * Print warnings if read-only parameters of a plugin are used in configuration.
 *
 */
@Named
@Singleton
class ReadOnlyPluginParametersValidator extends AbstractMavenPluginDescriptorSourcedParametersValidator {

    @Inject

DEFAULT_END_TOKEN; public void InterpolationFilterR(java.io.Reader, java.util.Map, String, String); public void InterpolationFilterR(java.io.Reader, java.util.Map); public long skip(long) throws java.io.IOException; public int read(char[], int, int) throws java.io.IOException; public int read() throws java.io.IOException; static void <clinit>(); } org/codehaus/plexus/util/introspection/ClassMap$1.class package org.codehaus.plexus.util.introspection; synchronized class ClassMap$1 { } org/codehaus/plexus/ut...

        String mavenVersion = rtInfo.getMavenVersion();

        if (mavenVersion == null || mavenVersion.isEmpty()) {
            throw new InitializationException("Unable to read Maven version from maven-core");
        }

        applicationVersion = new DefaultArtifactVersion(mavenVersion);
    }

PutInputStream(java.io.File, org.apache.maven.wagon.resource.Resource, org.apache.maven.wagon.Wagon, org.apache.maven.wagon.events.TransferEventSupport) throws java.io.FileNotFoundExceptio; public int read(byte[]) throws java.io.IOException; public int read() throws java.io.IOException; public int read(byte[], int, int) throws java.io.IOException; } META-INF/maven/org.apache.maven.wagon/wagon-webdav/pom.xml wagon-providers org.apache.maven.wagon 1.0-beta-2 4.0.0 wagon-webdav Maven Wagon WebDav Provider...

                    } catch (ChecksumFailedException e) {
                        // if we catch a ChecksumFailedException, it means the transfer/read succeeded, but the
                        // checksum doesn't match. This could be a problem with the server (ibiblio HTTP-200 error

     2. append happens at plugin level first, then goal level, independently from phases.
        This means for example that adding pluginA:goal2 to pre-existing (pluginA:goal1, pluginB:goal) will lead to (pluginA:goal1, pluginA:goal2, pluginB:goal)

   * see effective POM as shown by {{{/plugins/maven-help-plugin/effective-pom-mojo.html}<<<help:effective-pom>>>}} to see the effective plugins then goals order.

                        try (InputStream in = Files.newInputStream(metadata.getPath())) {
                            versioning =
                                    new MetadataStaxReader().read(in, false).getVersioning();
                        }
                    }
                }
            }
        } catch (Exception e) {
            invalidMetadata(session, trace, metadata, repository, e);