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 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package javax.lang.model.util;

import static javax.lang.model.SourceVersion.*;
import javax.lang.model.SourceVersion;
import javax.annotation.processing.SupportedSourceVersion;

/**
 * A skeletal visitor for annotation values with default behavior
 * appropriate for source versions {@link SourceVersion#RELEASE_9
 * RELEASE_9} through {@link SourceVersion#RELEASE_14 RELEASE_14}.
 *
 * <p> <b>WARNING:</b> The {@code AnnotationValueVisitor} interface
 * implemented by this class may have methods added to it in the
 * future to accommodate new, currently unknown, language structures
 * added to future versions of the Java&trade; programming language.
 * Therefore, methods whose names begin with {@code "visit"} may be
 * added to this class in the future; to avoid incompatibilities,
 * classes which extend this class should not declare any instance
 * methods with names beginning with {@code "visit"}.
 *
 * <p>When such a new visit method is added, the default
 * implementation in this class will be to call the {@link
 * #visitUnknown visitUnknown} method.  A new abstract annotation
 * value visitor class will also be introduced to correspond to the
 * new language level; this visitor will have different default
 * behavior for the visit method in question.  When the new visitor is
 * introduced, all or portions of this visitor may be deprecated.
 *
 * @param <R> the return type of this visitor's methods
 * @param <P> the type of the additional parameter to this visitor's methods.
 *
 * @see AbstractAnnotationValueVisitor6
 * @see AbstractAnnotationValueVisitor7
 * @see AbstractAnnotationValueVisitor8
 * @see AbstractAnnotationValueVisitor14
 * @since 9
 */
@SupportedSourceVersion(RELEASE_14)
public abstract class AbstractAnnotationValueVisitor9<R, P> extends AbstractAnnotationValueVisitor8<R, P> {

    /**
     * Constructor for concrete subclasses to call.
     */
    protected AbstractAnnotationValueVisitor9() {
        super();
    }
}
