try {
                Map<String, ?> options = Collections.singletonMap(MetadataReader.IS_STRICT, Boolean.FALSE);

                Metadata pluginGroupMetadata = metadataReader.read(metadata.getFile(), options);

                List<org.apache.maven.artifact.repository.metadata.Plugin> plugins = pluginGroupMetadata.getPlugins();

                if (plugins != null) {

    <p>A Toolchain is a preconfigured object that Maven plugins can use for tool configuration retrieval (location and other information).
    <p>The <a href="/plugins/maven-toolchains-plugin/">toolchains-plugin</a> can read available toolchains on the user's computer
    and match them against the toolchain requirements of the project (as configured in {@code pom.xml}):

Offline Mode Design

* UPDATE: 18-April-2005

  We cannot take the approach outlined below of detecting which remote
  repositories are "really" offline, since offline mode is more of a behavior,
  and this will lead to counter-intuitive results. A different feature may exist
  unimplemented, which is to detect when the network is down and provide better
  feedback for that case. However, when offline mode is declared, nothing

arserExcepti; public org.apache.maven.artifact.repository.metadata.Metadata read(java.io.Reader, boolean) throws java.io.IOException, org.codehaus.plexus.util.xml.pull.XmlPullParserExcepti; public org.apache.maven.artifact.repository.metadata.Metadata read(java.io.Reader) throws java.io.IOException, org.codehaus.plexus.util.xml.pull.XmlPullParserExcepti; public org.apache.maven.artifact.repository.metadata.Metadata read(java.io.InputStream, boolean) throws java.io.IOException, org.codehaus.plexu...

@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...