* and relationships between imported models. It's used for error reporting and debugging
 * to help identify where specific model elements came from.
 *
 * @since 4.0.0
 */
public class InputSource implements Serializable {

    private final String modelId;
    private final String location;
    private final List<InputSource> inputs;

 */

/**
 * Defines the Service Provider Interface (SPI) for Maven extensions, allowing
 * third-party implementations to extend and customize Maven's core functionality
 * through a stable, versioned API.
 *
 * @since 4.0.0
 */

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

/**
 *
 */
@Deprecated(since = "4.0.0")
public class MisconfiguredToolchainException extends Exception {

    public MisconfiguredToolchainException(String message) {
        super(message);
    }

/**
 * Provides classes for managing Maven toolchains, which allow projects to use specific
 * tool installations (like JDKs, compilers, or other build tools) across different
 * environments without hardcoding paths.
 *
 * @since 4.0.0
 */

	// credElement is fetched first to skip replacing the space in access key.
	credElement := strings.TrimPrefix(strings.Split(strings.TrimSpace(v4Auth), ",")[0], signV4Algorithm)
	// Replace all spaced strings, some clients can send spaced
	// parameters and some won't. So we pro-actively remove any spaces
	// to make parsing easier.
	v4Auth = strings.ReplaceAll(v4Auth, " ", "")
	if v4Auth == "" {
		return sv, ErrAuthHeaderEmpty
	}

            It will be closed if no further activity occurs. Thank you.
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 * artifact resolution, dependency management, and build execution. These services
 * form the backbone of Maven's extensible architecture.
 *
 * @since 4.0.0
 */

 * under the License.
 */
package org.apache.maven.api;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nullable;

/**
 * A dependency exclusion.
 *
 * @since 4.0.0
 * @see DependencyCoordinates#getExclusions()
 */
@Experimental
public interface Exclusion {
    @Nullable
    String getGroupId();

    @Nullable
    String getArtifactId();

 * under the License.
 */
package org.apache.maven.api.services;

import java.io.Serial;

import org.apache.maven.api.annotations.Consumer;
import org.apache.maven.api.annotations.Experimental;

/**
 * @since 4.0.0
 */
@Experimental
@Consumer
public class TransportProviderException extends MavenException {

    @Serial
    private static final long serialVersionUID = -6066070072576465969L;

   * of the transitive closure of {@code graph}. In other words, the returned {@link Graph} will not
   * be updated after modifications to {@code graph}.
   *
   * @since 33.1.0 (present with return type {@code Graph} since 20.0)
   */
  // TODO(b/31438252): Consider potential optimizations for this algorithm.
  public static <N> ImmutableGraph<N> transitiveClosure(Graph<N> graph) {