}

  @Override
  public String toString() {
    return elementOrder + ".lexicographical()";
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

 * query is malformed, contains invalid syntax, or violates query constraints.
 */
public class InvalidQueryException extends FessSystemException {

    /** Serial version UID for serialization */
    private static final long serialVersionUID = 1L;

    /** Message code for localized error messages */
    private final transient VaMessenger<FessMessages> messageCode;

    /**

    return Objects.hash(function, ordering);
  }

  @Override
  public String toString() {
    return ordering + ".onResultOf(" + function + ")";
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

 *
 * @author Bob Lee
 * @since 10.0
 */
@GwtCompatible
final class FunctionalEquivalence<F, T> extends Equivalence<F> implements Serializable {

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

  private final Function<? super F, ? extends @Nullable T> function;
  private final Equivalence<T> resultEquivalence;

  FunctionalEquivalence(

import java.util.Set;

/**
 * {@link Set} that is case-insensitive.
 *
 * @author higa
 */
public class CaseInsensitiveSet extends AbstractSet<String> implements Set<String>, Serializable {

    static final long serialVersionUID = 0L;

    private transient Map<String, Object> map = new CaseInsensitiveMap<>();

    private static final Object PRESENT = new Object();

    /**
     * Creates a {@link CaseInsensitiveSet}.

/**
 * Exception that wraps {@link SQLException}.
 *
 * @author higa
 * @author manhole
 */
public class SQLRuntimeException extends ClRuntimeException {

    private static final long serialVersionUID = 2533513110369526191L;

    /**
     * Creates a {@link SQLRuntimeException}.
     *
     * @param cause the underlying exception
     */
    public SQLRuntimeException(final SQLException cause) {

        return keyGenerator.getAndIncrement();
    }

    @Override
    protected int generateRemoteKey() {
        return keyGenerator.getAndIncrement();
    }

    @Override
    protected long getBufferAddress(ByteBuffer buffer) {
        // Return a fake address for TCP
        // In real RDMA implementations, this would be the native memory address
        return buffer.hashCode();
    }

 * This exception indicates that an external command or process execution encountered an error.
 */
public class CommandExecutionException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * Constructor with error message.
     * @param message The error message describing the command execution failure.
     */
    public CommandExecutionException(final String message) {

 * that don't declare ServletException in their throws clause.
 */
public class ServletRuntimeException extends RuntimeException {

    /** Serial version UID for serialization compatibility. */
    private static final long serialVersionUID = 1L;

    /**
     * Constructs a new ServletRuntimeException wrapping the given ServletException.
     *
     * @param e The ServletException to wrap
     */

 * This exception is used for errors during theme installation, uninstallation, or configuration.
 */
public class ThemeException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * Constructs a new ThemeException with the specified message and cause.
     *
     * @param message the exception message
     * @param cause the underlying cause of this exception