* <strong>Note:</strong> This is an internal component whose interface can change without prior notice.
 *
 * @deprecated clients that do not require compatibility with Maven 3.2.3 and earlier should link to
 *             {@link JavaToolchainImpl} instead.
 */
@Deprecated
public class DefaultJavaToolChain extends JavaToolchainImpl {
    public static final String KEY_JAVAHOME = JavaToolchainImpl.KEY_JAVAHOME;

package org.apache.maven.building;

import java.util.ArrayList;
import java.util.List;

/**
 * Collects problems that are encountered during settings building.
 *
 * @deprecated since 4.0.0, use {@link org.apache.maven.api.services} instead
 */
@Deprecated(since = "4.0.0")
class DefaultProblemCollector implements ProblemCollector {

    private final List<Problem> problems;

    private String source;

     *
     * @return the error code
     */
    public int getErrorCode() {
        return this.error;
    }

    /**
     *
     * @return the root cause
     * @deprecated use {@link #getCause()}
     */
    @Deprecated
    public Throwable getRootCause() {
        return getCause();
    }

  protected UnmodifiableIterator() {}

  /**
   * Guaranteed to throw an exception and leave the underlying data unmodified.
   *
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  public final void remove() {
    throw new UnsupportedOperationException();
  }

   * is returned.
   *
   * @deprecated Use {@code table.rowKeySet().comparator()} instead.
   */
  @InlineMe(
      replacement = "requireNonNull(this.rowKeySet().comparator())",
      staticImports = "java.util.Objects.requireNonNull")
  @Deprecated
  public final Comparator<? super R> rowComparator() {
    /*

import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;

/**
 * Wraps an ordinary {@link CharSequence} as a source.
 *
 * @deprecated since 4.0.0, use {@link org.apache.maven.api.services} instead
 */
@Deprecated(since = "4.0.0")
public class StringSource implements Source {
    private final String content;

    private final String location;

    private final int hashCode;

	// location of the Modified time.
	Modified time.Time

	// ModifiedTime is an MS-DOS-encoded time.
	//
	// Deprecated: Use Modified instead.
	ModifiedTime uint16

	// ModifiedDate is an MS-DOS-encoded date.
	//
	// Deprecated: Use Modified instead.
	ModifiedDate uint16

	// CRC32 is the CRC32 checksum of the file content.
	CRC32 uint32

 * 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 {

    /**
     * This should be the resulting ordering of plugins after merging:
     * <p>
     * Given:
     * <pre>
     * parent: X -&gt; A -&gt; B -&gt; D -&gt; E

import java.io.InputStream;

/**
 * Provides access to the contents of a source independently of the backing store (e.g. file system, database, memory).
 *
 * @deprecated since 4.0.0, use {@link org.apache.maven.api.services} instead
 */
@Deprecated(since = "4.0.0")
public interface Source {

    /**
     * Gets a byte stream to the source contents. Closing the returned stream is the responsibility of the caller.
     *

   * you only care to match ASCII digits, you can use {@code inRange('0', '9')}.
   *
   * @deprecated Many digits are supplementary characters; see the class documentation.
   * @since 19.0 (since 1.0 as constant {@code DIGIT})
   */
  @Deprecated
  public static CharMatcher digit() {
    return Digit.INSTANCE;
  }

  /**