### Contributing

Go is the work of thousands of contributors. We appreciate your help!

To contribute, please read the contribution guidelines at https://go.dev/doc/contribute.

Note that the Go project uses the issue tracker for bug reports and
proposals only. See https://go.dev/wiki/Questions for a list of
places to ask questions about the Go language.

[rf]: https://reneefrench.blogspot.com/

        assertEquals(0, toolchains.size());
        verify(logger).error("Missing toolchain factory for type: unknown. Possibly caused by misconfigured project.");
    }

    @Test
    void testModelAndFactory() {
        MavenSession session = mock(MavenSession.class);
        List<ToolchainModel> toolchainModels = List.of(

        assertEquals("child-data", childTrace.data());
    }

    @Test
    void testPredefinedContexts() {
        assertEquals("plugin", RequestTrace.CONTEXT_PLUGIN);
        assertEquals("project", RequestTrace.CONTEXT_PROJECT);
        assertEquals("bootstrap", RequestTrace.CONTEXT_BOOTSTRAP);
    }

    @Test
    void testNullValues() {
        RequestTrace trace = new RequestTrace(null, null, null);

      </fields>
    </class>
    <class>
      <name>Supplement</name>
      <version>1.0.0</version>
      <description>A single supplement</description>
      <fields>
        <field>
          <name>project</name>
          <version>1.0.0</version>
          <description>Snippets of POM xml files used to supplement the data model.</description>
          <type>DOM</type>
        </field>
      </fields>
    </class>

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.project;

import java.util.List;

import org.apache.maven.model.Plugin;
import org.apache.maven.model.PluginContainer;

/** @deprecated */
@Deprecated
public final class ModelUtils {

    /**

          <deprecated>deprecated-parameter</deprecated>
          <since>3.0.0</since>
        </parameter>
      </parameters>
      <configuration>
        <finalName implementation="java.lang.String" default-value="${project.build.finalName}">${jar.finalName}</finalName>
      </configuration>
      <requirements>
        <requirement>
          <role>org.codehaus.plexus.archiver.Archiver</role>
          <role-hint>jar</role-hint>

    "crossVersionTests": false
  },
  {
    "name": "project-features",
    "path": "platforms/core-configuration/project-features",
    "unitTests": false,
    "functionalTests": true,
    "crossVersionTests": false
  },
  {
    "name": "project-features-api",
    "path": "platforms/core-configuration/project-features-api",
    "unitTests": false,
    "functionalTests": false,

     * - Downloaded artifacts
     */
    PERSISTENT,

    /**
     * Data should be retained for the duration of the current Maven session.
     * Suitable for:
     * - Build-wide configuration
     * - Project model caching
     * - Inter-module metadata
     */
    SESSION_SCOPED,

    /**
     * Data should only be retained for the current build request.
     * Suitable for:
     * - Plugin execution results

func exponentialBackoffWait(r *rand.Rand, unit, maxSleep time.Duration) func(uint) time.Duration {
	if unit > time.Hour {
		// Protect against integer overflow
		panic("unit cannot exceed one hour")
	}
	return func(attempt uint) time.Duration {
		if attempt > 16 {
			// Protect against integer overflow
			attempt = 16
		}
		// sleep = random_between(unit, min(cap, base * 2 ** attempt))

import java.io.IOException;
import java.util.Map;

import org.apache.maven.internal.transformation.PomArtifactTransformer;
import org.apache.maven.internal.transformation.TransformerManager;
import org.apache.maven.project.MavenProject;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.deployment.DeployRequest;
import org.eclipse.aether.installation.InstallRequest;

import static java.util.Objects.requireNonNull;