protected boolean isTargetValue(final Object value) {
        if (value == null) {
            return !excludesNull;
        }
        if (value instanceof String && excludesWhitespace && ((String) value).trim().isEmpty()) {
            return !excludesWhitespace;
        }
        return true;
    }

    /**
     * Converts the source property name to the destination property name for use in a {@literal Map}.
     *

     *
     * @return A {@link CopyOptions} that excludes properties with whitespace values from the operation.
     * @see CopyOptions#excludeWhitespace()
     */
    public static CopyOptions excludeWhitespace() {
        return new CopyOptions().excludeWhitespace();
    }

    /**
     * Returns a {@link CopyOptions} with the specified prefix.
     * <p>

import static org.codelibs.core.beans.util.CopyOptionsUtil.exclude;
import static org.codelibs.core.beans.util.CopyOptionsUtil.excludeNull;
import static org.codelibs.core.beans.util.CopyOptionsUtil.excludeWhitespace;
import static org.codelibs.core.beans.util.CopyOptionsUtil.include;
import static org.codelibs.core.beans.util.CopyOptionsUtil.prefix;
import static org.codelibs.core.collection.CollectionsUtil.newHashMap;