import org.apache.maven.api.toolchain.InputSource;
import org.apache.maven.toolchain.model.PersistedToolchains;
import org.apache.maven.toolchain.v4.MavenToolchainsStaxReader;

/**
 * Handles deserialization of toolchains from the default textual format.
 *
 * @since 3.3.0
 * @deprecated since 4.0.0, use {@link MavenToolchainsStaxReader} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")

    private String packaging;

    private boolean includesDependencies;

    private String language;

    @Deprecated
    private boolean addedToClasspath;

    /**
     * Default ctor for Plexus compatibility, as many plugins have artifact handlers declared in legacy Plexus XML.
     * Do not use directly!
     *

   */
  @CanIgnoreReturnValue // to skip a line
  public @Nullable String readLine() throws IOException {
    while (lines.peek() == null) {
      Java8Compatibility.clear(cbuf);
      // The default implementation of Reader#read(CharBuffer) allocates a
      // temporary char[], so we call Reader#read(char[], int, int) instead.
      int read = (reader != null) ? reader.read(buf, 0, buf.length) : readable.read(cbuf);

   * will return {@code Double.MAX_VALUE}, not {@code Double.POSITIVE_INFINITY}.
   *
   * <p>For the case of {@link RoundingMode#HALF_EVEN}, this implementation uses the IEEE 754
   * default rounding mode: if the two nearest representable values are equally near, the one with
   * the least significant bit zero is chosen. (In such cases, both of the nearest representable

                                "schema": {
                                    "type": "array",
                                    "items": {"type": "string"},
                                    "default": [],
                                    "title": "X Tag",
                                },
                            },
                        ],
                        "responses": {

func etcdErrToErr(err error, etcdEndpoints []string) error {
	if err == nil {
		return nil
	}
	switch err {
	case context.DeadlineExceeded:
		return fmt.Errorf("%w %s", errEtcdUnreachable, etcdEndpoints)
	default:
		return fmt.Errorf("unexpected error %w from etcd, please check your endpoints %s", err, etcdEndpoints)
	}
}

func saveKeyEtcdWithTTL(ctx context.Context, client *etcd.Client, key string, data []byte, ttl int64) error {

Boolean flag = BooleanConversionUtil.toBoolean("true");        // Returns true
Date date = DateConversionUtil.toDate("2023-12-25", "yyyy-MM-dd");

// Primitive conversions with default values
int primitiveInt = IntegerConversionUtil.toPrimitiveInt(value, "0");  // Default to 0 if null
```

### Collection Utilities with Java 21 Support
```java
import org.codelibs.core.collection.CollectionsUtil;
import java.util.SequencedCollection;

import jakarta.annotation.Resource;

/**
 * Admin action for Request Header management.
 *
 */
public class AdminReqheaderAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminReqheaderAction() {
        super();
    }

    /** Role name for admin request header operations */
    public static final String ROLE = "admin-reqheader";

    /** Base directory for command execution. */
    protected File baseDir;

    /** Timer for managing process destruction. */
    private Timer destoryTimer;

    /**
     * Default constructor for CommandGenerator.
     */
    public CommandGenerator() {
        super();
    }

    /**
     * Initializes the command generator after construction.
     */
    @PostConstruct

     * during artifact resolution, {@link #VALIDATION_LEVEL_MINIMAL} should be used to account for models of poor
     * quality. By default, models are validated in strict mode.
     *
     * @param validationLevel The level of validation to perform on processed models.
     * @return This request, never {@code null}.
     */