*
     * @param request The execution request to populate, must not be {@code null}.
     * @param toolchains The toolchains to copy into the execution request, may be {@code null}.
     * @return The populated execution request, never {@code null}.
     * @throws MavenExecutionRequestPopulationException If the execution request could not be populated.
     * @since 3.3.0
     */

        try {
            return expressionEvaluator.evaluate(strValue) != null;
        } catch (ExpressionEvaluationException e) {
            // not important
            // will be reported during Mojo fields populate
        }

        // fallback - in case of error in expressionEvaluator
        return false;
    }

    @Override
    public final void validate(
            MavenSession mavenSession,

        // use DefaultJavaToolChain for compatibility with maven 3.2.3 and earlier

        @SuppressWarnings("deprecation")
        JavaToolchainImpl jtc = new DefaultJavaToolChain(model, logger);

        // populate the provides section
        Properties provides = model.getProvides();
        for (Entry<Object, Object> provide : provides.entrySet()) {
            String key = (String) provide.getKey();

h3. Discovery all Plexus components

Once the ClassRealm is populated with the plugin artifact and its dependency artifacts a discovery operation must be performed on the plugin ClassRealm in order to discover any Plexus components that may be present in any of the artifacts required for the plugins execution.

h3. Looking up the plugin with a configuration

import org.apache.maven.api.services.DependencyResolverResult;

/**
 * The result of collecting dependencies with a dependency resolver.
 * New instances are initially empty. Callers must populate with calls
 * to the following methods, in that order:
 *
 * <ul>
 *   <li>{@link #addOutputDirectory(Path, Path, PathModularizationCache)} (optional)</li>

foreach configuration element:
 - if read only and being set squawk

 - find the parameter
 - get value from expression or default
 - if required and null squawk

        /*
         * This provides backward-compat with 2.x that allowed plugins like the maven-remote-resources-plugin:1.0 to
         * populate the builder configuration with model repositories instead of artifact repositories.
         */

        if (repositories != null) {
            boolean normalized = false;

import org.apache.maven.api.services.DependencyResolverResult;

/**
 * The result of collecting dependencies with a dependency resolver.
 * New instances are initially empty. Callers must populate with calls
 * to the following methods, in that order:
 *
 * <ul>
 *   <li>{@link #addOutputDirectory(Path, Path, PathModularizationCache)} (optional)</li>

    // it's all encapsulated here so it appears normalized to the POM builder.

    // We are going to take the project packaging and find all plugin in the default lifecycle and create
    // fully populated Plugin objects, including executions with goals and default configuration taken
    // from the plugin.xml inside a plugin.
    //

import org.eclipse.aether.artifact.DefaultArtifact;
import org.eclipse.aether.graph.Dependency;
import org.eclipse.aether.graph.Exclusion;
import org.eclipse.aether.resolution.ArtifactDescriptorResult;

/**
 * Populates Aether {@link ArtifactDescriptorResult} from Maven project {@link Model}.
 * <p>
 * <strong>Note:</strong> This class is part of work in progress and can be changed or removed without notice.
 * @since 3.2.4
 */