EDIT

import java.util.regex.Matcher;

import java.util.regex.Pattern;

import org.apache.log4j.Logger;

/**

import java.util.regex.Matcher;

import java.util.regex.Pattern;

/**

import org.apache.log4j.Logger;

import org.apache.poi.hssf.usermodel.HSSFDataFormatter;

import org.apache.poi.ss.usermodel.Cell;

import org.apache.poi.ss.usermodel.Row;

import org.apache.poi.ss.usermodel.Sheet;

import org.apache.poi.ss.usermodel.Workbook;

	public static String getCellValue(Cell cell) {

		try {

				return cell.getStringCellValue();

				return "";

				return getNumericCellValue(cell);

				Boolean cellValue = cell.getBooleanCellValue();

				String value = String.valueOf(cellValue);

				return value;

				return "-error-";

				try {

					String strValue = cell.getStringCellValue();

					if ("".equals(strValue)){

import org.apache.commons.imaging.common.GenericImageMetadata.GenericImageMetadataItem;

import org.apache.commons.imaging.common.ImageMetadata;

import org.apache.commons.imaging.common.ImageMetadata.ImageMetadataItem;

import org.apache.http.HttpException;

import org.apache.http.client.ClientProtocolException;

import org.apache.log4j.Logger;

import java.util.List;

import org.apache.poi.EncryptedDocumentException;

import org.apache.poi.ss.usermodel.Sheet;

import org.apache.poi.ss.usermodel.Workbook;

import org.apache.poi.ss.usermodel.WorkbookFactory;

            }

        } catch(FileNotFoundException fne) {

            result.addFatalError("Import file '" + uri.toString() + "' not found. Import not possible.");

        } catch(EncryptedDocumentException ede) {

            result.addFatalError("File is encrypted. Import not possible.");

        } catch(Exception ioe) {

        <groupId>org.javassist</groupId>

        <artifactId>javassist</artifactId>

    </dependency>

    <dependency>

      <groupId>org.aspectj</groupId>

      <artifactId>aspectjweaver</artifactId>

		try{

			 // configure fopFactory as desired

			FOUserAgent foUserAgent = fopFactory.newFOUserAgent();

			 // configure foUserAgent as desired

import de.digitalcollections.iiif.model.ImageContent;

import de.digitalcollections.iiif.model.MetadataEntry;

import de.digitalcollections.iiif.model.PropertyValue;

import de.digitalcollections.iiif.model.enums.ViewingDirection;

import de.digitalcollections.iiif.model.sharedcanvas.Canvas;

import de.digitalcollections.iiif.model.sharedcanvas.Manifest;

import de.digitalcollections.iiif.model.sharedcanvas.Resource;

import de.digitalcollections.iiif.model.sharedcanvas.Sequence;

import eu.etaxonomy.cdm.api.service.IMediaService;

import eu.etaxonomy.cdm.api.service.MediaServiceImpl;

import eu.etaxonomy.cdm.common.media.CdmImageInfo;

	<hibernate-validator.version>6.1.5.Final</hibernate-validator.version>          <!-- checked 2020-08 -->

    <hibernate-search.version>5.5.2.Final</hibernate-search.version>

    <lucene.version>5.4.1</lucene.version>

	<!-- <hsqldb.version>1.8.0.10</hsqldb.version>  -->

	<!-- 1.8.0.10, 1.9.0-rc6 (manually build only for debugging) -->

    <httpcomponents.version>4.5.12</httpcomponents.version>

    <jackson.version>2.11.2</jackson.version>           <!-- checked 2020-08 -->

	<commons-logging.version>1.2</commons-logging.version> <!-- checked 2020-08 -->

	<slf4j.version>1.7.30</slf4j.version>               <!-- checked 2020-08 -->

	<aspectj.version>1.9.6</aspectj.version>            <!-- checked 2020-08 -->

    <javadoc.opts>-Xdoclint:none</javadoc.opts>         

  </properties>

      <dependency>

        <groupId>javax.xml.bind</groupId>

        <artifactId>jaxb-api</artifactId>

      </dependency>

      <dependency>

        <groupId>xml-resolver</groupId>

        <artifactId>xml-resolver</artifactId>

        <version>1.2</version>

      </dependency>

      <dependency>

        <groupId>javax.activation</groupId>

        <artifactId>activation</artifactId>

        <version>1.1.1</version>

      </dependency>

 	  <dependency>

		<groupId>org.glassfish.jaxb</groupId>

		<artifactId>jaxb-jxc</artifactId>

		<version>${jaxb.version}</version>

	  </dependency>

	  <dependency>

	    <!-- only for version management org.apache.ant:ant depends in different versions from 

             org.unitils:unitils-easymock:3.4.2 and org.glassfish.jaxb:jaxb-jxc:2.2.11 -->

	    <groupId>org.apache.ant</groupId>

	    <artifactId>ant</artifactId>

	  </dependency>

      <!-- ******* hibernate uses slf4j ******* -->

      <dependency>

      <dependency>

        <groupId>junit</groupId>

        <artifactId>junit</artifactId>

        <scope>test</scope>

      </dependency>

      <dependency>

        <artifactId>log4j</artifactId>

        <version>1.2.17</version>

      </dependency>

      <dependency>

        <groupId>net.sf.opencsv</groupId>

        <artifactId>opencsv</artifactId>

        <version>2.3</version>

      </dependency>

      <dependency>

        <groupId>org.eclipse</groupId>

        <artifactId>osgi</artifactId>

        <version>3.6.0</version>

      <dependency>

        <groupId>org.apache.commons</groupId>

        <artifactId>commons-lang3</artifactId>

      </dependency>

      <dependency>

        <groupId>commons-collections</groupId>

      <dependency>

        <groupId>commons-io</groupId>

        <artifactId>commons-io</artifactId>

      </dependency>

      <!-- only for version management, poi currently requires 1.6, commons-logging 

        1.1.1 requires 1.6, so we update here to the latest version -->

       <dependency>

        <groupId>de.digitalcollections.iiif</groupId>

        <artifactId>iiif-apis</artifactId>

      <!--         -->

      <dependency>

        <groupId>org.apache.poi</groupId>

        org.apache.poi:poi-ooxml-schemas:3.13 and org.apache.poi:ooxml-schemas:1.4 -->

      	<groupId>org.apache.xmlbeans</groupId>

      	<artifactId>xmlbeans</artifactId>

      </dependency>

      <dependency>

        <groupId>org.docx4j</groupId>

        <artifactId>docx4j</artifactId>

      </dependency>

      <dependency>

        <!-- only for version management jcl-over-slf4j depends in different versions from 

      	<artifactId>xalan</artifactId>

      	<version>2.7.2</version>

      </dependency>

      <dependency>

        <!-- only for version management org.apache.xmlgraphics:xmlgraphics-commons depends in different versions from 

        org.docx4j:docx4j:6.0.1 and org.apache.xmlgraphics:fop:1.1 -->

      	<groupId>org.apache.xmlgraphics</groupId>

      	<artifactId>xmlgraphics-commons</artifactId>

      </dependency>

      <dependency>

        <groupId>org.apache.commons</groupId>

      <dependency>

        <groupId>joda-time</groupId>

        <artifactId>joda-time</artifactId>

      </dependency>

	  <!-- maybe replaced by usertype.core -->

      <dependency>

      <dependency>

        <groupId>org.apache.xmlgraphics</groupId>

        <artifactId>batik-ext</artifactId>

      </dependency>

      <dependency> <!-- required by cdmlib-print -->

        <groupId>org.apache.xmlgraphics</groupId>

        <!-- version 1.1 does NOT work, because it depends on avalon-framework-api 

          4.2.0 which is not available in central maven repository under the given 

          groupID -->

        <exclusions>

          <!-- 1.1 depends on an old version of avalon-framework which does 

            not exist in mvn repository under this groupId (has old groupId) -->

          <!-- used in eu.etaxonomy.cdm.io.markup and for swagger -->

          <groupId>com.google.guava</groupId>

          <artifactId>guava</artifactId>

      </dependency>

      <dependency>

        <groupId>jaxen</groupId>

        <artifactId>jaxen</artifactId>

      </dependency>

      <!-- last jdom 1.x version -->

	  <dependency>

      <dependency>

      <groupId>xmlpull</groupId>

        <artifactId>xmlpull</artifactId>

      </dependency>

      <dependency>

        <groupId>xpp3</groupId>

      <dependency>

        <groupId>xom</groupId>

        <artifactId>xom</artifactId>

        <exclusions>

          <!-- need to exclude com.ibm.icu:icu4j since it contains an invalid 

            file which causes the jetty-maven-plugin to fail see http://stackoverflow.com/questions/3026956/javassist-failure-in-hibernate-invalid-constant-type-60 -->

      <dependency>

        <groupId>net.sf.saxon</groupId>

        <artifactId>Saxon-HE</artifactId>

      </dependency>

      <!-- ******* http components (ViBRANT)******* -->

      <dependency>

      <dependency>

        <groupId>org.json</groupId>

        <artifactId>json</artifactId>

      </dependency>

      <!-- ******* HIBERNATE / EJB3 ******* -->

      <dependency>

        <groupId>org.hibernate.javax.persistence</groupId>

        <artifactId>hibernate-jpa-2.1-api</artifactId>

      </dependency>

      <dependency>

        <groupId>org.hibernate</groupId>

      <dependency>

        <groupId>org.hibernate.common</groupId>

        <artifactId>hibernate-commons-annotations</artifactId>

      </dependency>

      <dependency>

        <groupId>org.hibernate</groupId>

      <dependency>

        <groupId>org.javassist</groupId>

        <artifactId>javassist</artifactId>

      </dependency>

      <dependency>

        <groupId>org.hibernate</groupId>

         <!-- it was a (currently excluded) transitiv dependency from org.geotools/gt-referencing  used in cdmlib-ext -->

         <groupId>javax</groupId>

         <artifactId>javaee-api</artifactId>

      </dependency>

      <!-- for ikey-plus -->

      <dependency>

        <groupId>com.itextpdf</groupId>

        <artifactId>itextpdf</artifactId>

        <scope>compile</scope>

      </dependency>

      <!-- AptView -->

        <!-- managing version of plexus-utils to avoid multiple versions (3.0.15, 1.4.5) of the artifact -->

      	<groupId>org.codehaus.plexus</groupId>

      	<artifactId>plexus-utils</artifactId>

      </dependency>

      <!-- swagger (rest service doc) -->

      <dependency>

      <dependency>

        <groupId>mysql</groupId>

        <artifactId>mysql-connector-java</artifactId>

      </dependency>

      <dependency>

        <groupId>org.mariadb.jdbc</groupId>

        <artifactId>mariadb-java-client</artifactId>

      </dependency>

      <dependency>

         <groupId>org.postgresql</groupId>

         <artifactId>postgresql</artifactId>

      </dependency>

	  <dependency>

        <groupId>com.h2database</groupId>

	<dependency>

	    <groupId>org.geotools</groupId>

	    <artifactId>gt-main</artifactId>

  </dependencyManagement>

</project>