diff --git a/README.md b/README.md
index 27e3c595cd712ed4c9d42fc78fad84d75179f7b2..cb0c8644230441befdd149863212a46d41325852 100644
--- a/README.md
+++ b/README.md
@@ -42,11 +42,18 @@ Or you can use a DEB file from the DARIAH-DE [APTLY Repository](https://ci.de.da
 The service is deployed just by installing the appropriate DEB package.
 
 
-# Releasing a new version
+## Releasing a new version
 
 For releasing a new version of DARIAH-DE OAI-PMH, please have a look at the [DARIAH-DE Release Management Page](https://wiki.de.dariah.eu/display/DARIAH3/DARIAH-DE+Release+Management#DARIAHDEReleaseManagement-Gitlabflow/Gitflow(develop,main,featurebranchesundtags)) or see the [Gitlab CI file](.gitlab-ci.yml).
 
 
+## JUNIT Online Testing
+
+* Choose one of the existing properties files from */oaipmh-core/src/test/resources* to test TextGrid or DARIAH-DE prod, test, or dev OAI-PMH service.
+* Put the filename and path in class  */oaipmh-core/src/test/java/info/textgrid/middleware/test/online/OaipmhUtilitiesOnline.java* or */oaipmh-core/src/test/java/info/textgrid/middleware/test/online/dh/TestDHOaipmhOnline.java*.
+* **Un-ignore** all the JUNIT test classes in all the test class header in *info.textgrid.middleware.test.online.dh* or *info.textgrid.middleware.test.online.tg*.
+* Store the files and run the tests via Eclipse, or mvn command line.
+
 ## Links and References
 
 * [OAI-PMH Service Gitlab page](https://gitlab.gwdg.de/dariah-de/dariah-de-oai-pmh-services)
diff --git a/oaipmh-core/src/main/java/info/textgrid/middleware/OaipmhImpl.java b/oaipmh-core/src/main/java/info/textgrid/middleware/OaipmhImpl.java
index 8c9bc7b1503baf26c7ac47b93d6df36c753f88ad..754bf6e8c53874fc5e049216d0029ef1b50b5f26 100644
--- a/oaipmh-core/src/main/java/info/textgrid/middleware/OaipmhImpl.java
+++ b/oaipmh-core/src/main/java/info/textgrid/middleware/OaipmhImpl.java
@@ -78,7 +78,7 @@ public class OaipmhImpl implements OaipmhProducer {
   private IdentifierListDelivererIdiom identifierListIDIOM;
   private IdentifierListDelivererDatacite identifierListDATACITE;
 
-  private IdiomImages idiomImages;
+  // private IdiomImages idiomImages;
 
   // **
   // PUBLIC
@@ -113,8 +113,9 @@ public class OaipmhImpl implements OaipmhProducer {
       SetListDeliverer setList, // 8
       IdentifierListDelivererDC identifierList, // 9
       IdentifierListDelivererIdiom identifierListIDIOM, // 10
-      IdentifierListDelivererDatacite identifierListDATACITE, // 11
-      IdiomImages imageList) {
+      IdentifierListDelivererDatacite identifierListDATACITE // 11
+  // IdiomImages imageList
+  ) {
 
     this.rep = rep;
 
@@ -133,7 +134,7 @@ public class OaipmhImpl implements OaipmhProducer {
     this.identifierListIDIOM = identifierListIDIOM;
     this.identifierListDATACITE = identifierListDATACITE;
 
-    this.idiomImages = imageList;
+    // this.idiomImages = imageList;
   }
 
   /*
@@ -366,7 +367,7 @@ public class OaipmhImpl implements OaipmhProducer {
 
       IdentifierListDelivererInterface idListDeliv = null;
 
-      // If metadataFormat IS SET, set recordListDeliverer accordingly.
+      // If metadataFormat IS SET, set list deliverer accordingly.
       if (request.getMetadataPrefix() != null) {
         if (request.getMetadataPrefix().equals(OaipmhUtilities.OAIDC_PREFIX)) {
           idListDeliv = this.identifierListDC;
@@ -397,16 +398,16 @@ public class OaipmhImpl implements OaipmhProducer {
                 .containsKey(request.getResumptionToken())) {
           idListDeliv = this.identifierListDATACITE;
         }
-        // Token is from IDIOMImages request.
-        else if (IdiomImages.getCursorCollector() != null
-            && IdiomImages.getCursorCollector().containsKey(request.getResumptionToken())) {
-          // TODO Make configurable in config file??
-          this.idiomImages.setKindID("1");
-          this.idiomImages.setPerPage("100");
-          this.idiomImages.setPageNumber(
-              Integer.toString(IdiomImages.getCursorCollector().get(request.getResumptionToken())));
-          idListDeliv = this.idiomImages;
-        }
+        // // Token is from IDIOMImages request.
+        // else if (IdiomImages.getCursorCollector() != null
+        // && IdiomImages.getCursorCollector().containsKey(request.getResumptionToken())) {
+        // // TODO Make configurable in config file??
+        // this.idiomImages.setKindID("1");
+        // this.idiomImages.setPerPage("100");
+        // this.idiomImages.setPageNumber(
+        // Integer.toString(IdiomImages.getCursorCollector().get(request.getResumptionToken())));
+        // idListDeliv = this.idiomImages;
+        // }
         // We have got an invalid resumptionToken here!
         else {
           ErrorHandler e = new ErrorHandler();
@@ -557,7 +558,7 @@ public class OaipmhImpl implements OaipmhProducer {
 
       RecordListDelivererInterface recListDeliv = null;
 
-      // If metadataFormat IS SET, set recordListDeliverer accordingly.
+      // If metadataFormat IS SET, set list deliverer accordingly.
       if (request.getMetadataPrefix() != null) {
         if (request.getMetadataPrefix().equals(OaipmhUtilities.OAIDC_PREFIX)) {
           recListDeliv = this.recordListDC;
@@ -596,16 +597,16 @@ public class OaipmhImpl implements OaipmhProducer {
                 .containsKey(request.getResumptionToken())) {
           recListDeliv = this.recordListDATACITE;
         }
-        // Token is from IDIOMImages request.
-        else if (IdiomImages.getCursorCollector() != null
-            && IdiomImages.getCursorCollector().containsKey(request.getResumptionToken())) {
-          // TODO Make configurable in config file??
-          this.idiomImages.setKindID("1");
-          this.idiomImages.setPerPage("100");
-          this.idiomImages.setPageNumber(
-              Integer.toString(IdiomImages.getCursorCollector().get(request.getResumptionToken())));
-          recListDeliv = this.idiomImages;
-        }
+        // // Token is from IDIOMImages request.
+        // else if (IdiomImages.getCursorCollector() != null
+        // && IdiomImages.getCursorCollector().containsKey(request.getResumptionToken())) {
+        // // TODO Make configurable in config file??
+        // this.idiomImages.setKindID("1");
+        // this.idiomImages.setPerPage("100");
+        // this.idiomImages.setPageNumber(
+        // Integer.toString(IdiomImages.getCursorCollector().get(request.getResumptionToken())));
+        // recListDeliv = this.idiomImages;
+        // }
         // We have got an invalid resumptionToken here!
         else {
           ErrorHandler e = new ErrorHandler();
diff --git a/oaipmh-core/src/test/java/info/textgrid/middleware/test/TestDHOaipmhLocally.java b/oaipmh-core/src/test/java/info/textgrid/middleware/test/TestDHOaipmhLocally.java
index a77e5d10ba363410846b8e8a9c7776e3f0a0cedd..e1c37543f14cb25ca4ac0680c4632efb4486d051 100644
--- a/oaipmh-core/src/test/java/info/textgrid/middleware/test/TestDHOaipmhLocally.java
+++ b/oaipmh-core/src/test/java/info/textgrid/middleware/test/TestDHOaipmhLocally.java
@@ -4,11 +4,8 @@ import java.text.ParseException;
 import org.junit.BeforeClass;
 import org.junit.Ignore;
 import org.junit.Test;
-import info.textgrid.middleware.oaipmh.DeletedRecordType;
-import info.textgrid.middleware.oaipmh.GranularityType;
-import info.textgrid.middleware.IdiomImages;
-import info.textgrid.middleware.IdentifierListDelivererDatacite;
 import info.textgrid.middleware.IdentifierListDelivererDC;
+import info.textgrid.middleware.IdentifierListDelivererDatacite;
 import info.textgrid.middleware.IdentifierListDelivererIdiom;
 import info.textgrid.middleware.MetadataFormatListDelivererDH;
 import info.textgrid.middleware.MetadataFormatListDelivererInterface;
@@ -16,15 +13,17 @@ import info.textgrid.middleware.OaipmhConstants;
 import info.textgrid.middleware.OaipmhElasticSearchClient;
 import info.textgrid.middleware.OaipmhImpl;
 import info.textgrid.middleware.OaipmhUtilities;
-import info.textgrid.middleware.RecordDelivererDatacite;
 import info.textgrid.middleware.RecordDelivererDC;
+import info.textgrid.middleware.RecordDelivererDatacite;
 import info.textgrid.middleware.RecordDelivererIdiom;
-import info.textgrid.middleware.RecordListDelivererDatacite;
 import info.textgrid.middleware.RecordListDelivererDC;
+import info.textgrid.middleware.RecordListDelivererDatacite;
 import info.textgrid.middleware.RecordListDelivererIdiom;
 import info.textgrid.middleware.RepIdentification;
 import info.textgrid.middleware.SetListDeliverer;
 import info.textgrid.middleware.common.TextGridMimetypes;
+import info.textgrid.middleware.oaipmh.DeletedRecordType;
+import info.textgrid.middleware.oaipmh.GranularityType;
 
 /**
  * FIXME: Add documentation how to use this class, use SSH tunnel?
@@ -47,7 +46,7 @@ public class TestDHOaipmhLocally {
   private static RecordListDelivererDatacite recordListDATACITE;
   // private static OpenAireIdentifierList openAireIdentifierList;
   private static IdentifierListDelivererDatacite identifierListDATACITE;
-  private static IdiomImages idiomImages;
+  // private static IdiomImages idiomImages;
   private DeletedRecordType deletedRecordType = DeletedRecordType.NO;
   private GranularityType granularityType = GranularityType.YYYY_MM_DD_THH_MM_SS_Z;
   private RepIdentification rep = new RepIdentification("DARIAH-DE Repository",
@@ -75,8 +74,9 @@ public class TestDHOaipmhLocally {
           TestDHOaipmhLocally.identifierList,
           TestDHOaipmhLocally.identifierListIDIOM,
           // OaiPmhTestDH.openAireIdentifierList);
-          TestDHOaipmhLocally.identifierListDATACITE,
-          TestDHOaipmhLocally.idiomImages);
+          TestDHOaipmhLocally.identifierListDATACITE
+      // TestDHOaipmhLocally.idiomImages
+      );
 
   OaipmhUtilities settings = new OaipmhUtilities();
 
diff --git a/oaipmh-core/src/test/java/info/textgrid/middleware/test/TestTGOaipmhLocally.java b/oaipmh-core/src/test/java/info/textgrid/middleware/test/TestTGOaipmhLocally.java
index 23f25f5958dccbeaf5d5afad72f8d1864644fec0..34ce8bff62544c6d358b81c6ee22de7b43b95f4b 100644
--- a/oaipmh-core/src/test/java/info/textgrid/middleware/test/TestTGOaipmhLocally.java
+++ b/oaipmh-core/src/test/java/info/textgrid/middleware/test/TestTGOaipmhLocally.java
@@ -13,25 +13,25 @@ import org.junit.BeforeClass;
 import org.junit.Ignore;
 import org.junit.Test;
 import info.textgrid.middleware.DublinCoreBuilder;
-import info.textgrid.middleware.IdiomImages;
-import info.textgrid.middleware.IdentifierListDelivererDatacite;
 import info.textgrid.middleware.IdentifierListDelivererDC;
+import info.textgrid.middleware.IdentifierListDelivererDatacite;
 import info.textgrid.middleware.IdentifierListDelivererIdiom;
+import info.textgrid.middleware.IdiomImages;
 import info.textgrid.middleware.MetadataFormatListDelivererInterface;
 import info.textgrid.middleware.MetadataFormatListDelivererTG;
 import info.textgrid.middleware.OaipmhConstants;
 import info.textgrid.middleware.OaipmhElasticSearchClient;
 import info.textgrid.middleware.OaipmhImpl;
+import info.textgrid.middleware.OaipmhTGConstants;
 import info.textgrid.middleware.OaipmhUtilities;
-import info.textgrid.middleware.RecordDelivererDatacite;
 import info.textgrid.middleware.RecordDelivererDC;
+import info.textgrid.middleware.RecordDelivererDatacite;
 import info.textgrid.middleware.RecordDelivererIdiom;
-import info.textgrid.middleware.RecordListDelivererDatacite;
 import info.textgrid.middleware.RecordListDelivererDC;
+import info.textgrid.middleware.RecordListDelivererDatacite;
 import info.textgrid.middleware.RecordListDelivererIdiom;
 import info.textgrid.middleware.RepIdentification;
 import info.textgrid.middleware.SetListDeliverer;
-import info.textgrid.middleware.OaipmhTGConstants;
 import info.textgrid.middleware.common.TextGridMimetypes;
 import info.textgrid.middleware.oaipmh.DeletedRecordType;
 import info.textgrid.middleware.oaipmh.GranularityType;
@@ -87,8 +87,9 @@ public class TestTGOaipmhLocally {
       TestTGOaipmhLocally.setListTextGrid,
       TestTGOaipmhLocally.identifierList,
       TestTGOaipmhLocally.identifierListIDIOM,
-      TestTGOaipmhLocally.identifierListDATACITE,
-      TestTGOaipmhLocally.idiomImages);
+      TestTGOaipmhLocally.identifierListDATACITE
+  // TestTGOaipmhLocally.idiomImages
+  );
 
   OaipmhUtilities settings = new OaipmhUtilities();
 
diff --git a/oaipmh-core/src/test/java/info/textgrid/middleware/test/online/OaipmhUtilitiesOnline.java b/oaipmh-core/src/test/java/info/textgrid/middleware/test/online/OaipmhUtilitiesOnline.java
index 80f25464dfbdde006265ae7fdf09fea3da14bcfe..cec44700696606c03705de0a6746f5f7e78f0d65 100644
--- a/oaipmh-core/src/test/java/info/textgrid/middleware/test/online/OaipmhUtilitiesOnline.java
+++ b/oaipmh-core/src/test/java/info/textgrid/middleware/test/online/OaipmhUtilitiesOnline.java
@@ -48,8 +48,8 @@ public class OaipmhUtilitiesOnline {
 
   // ## CHANGE SETTINGS BELOW FOR SETTING TEST SCOPE ---------------------------------------------
 
-  // public static final String PROPERTIES_FILE = "oaipmh.test.textgridlab-org.properties";
-  public static final String PROPERTIES_FILE = "oaipmh.test.dev-textgridlab-org.properties";
+  public static final String PROPERTIES_FILE = "oaipmh.test.textgridlab-org.properties";
+  // public static final String PROPERTIES_FILE = "oaipmh.test.dev-textgridlab-org.properties";
 
   public static final boolean TEST_ALL_PAGES = false;
   // public static final boolean TEST_ALL_PAGES = true;
diff --git a/oaipmh-core/src/test/java/info/textgrid/middleware/test/online/dh/TestDHOaipmhOnline.java b/oaipmh-core/src/test/java/info/textgrid/middleware/test/online/dh/TestDHOaipmhOnline.java
index c9c2eb7ae2b9818d53bb7f21a07a2747e7ae3f02..4611d5510ea81cc3a90755547bbfb01aefee6608 100644
--- a/oaipmh-core/src/test/java/info/textgrid/middleware/test/online/dh/TestDHOaipmhOnline.java
+++ b/oaipmh-core/src/test/java/info/textgrid/middleware/test/online/dh/TestDHOaipmhOnline.java
@@ -50,8 +50,8 @@ public class TestDHOaipmhOnline {
   private static String checkGetRecordDC;
   private static String expectedGetRecordDC;
 
-  private static String checkGetRecordDATACITE;
-  private static String expectedGetRecordDATACITE;
+  private static String checkGetRecordDatacite;
+  private static String expectedGetRecordDatacite;
 
   private static String checkListRecordsDCSet;
   private static Integer checkListRecordsDCSetExpectedPages;
@@ -59,8 +59,8 @@ public class TestDHOaipmhOnline {
   private static String checkListRecordsDCFrom;
   private static String checkListRecordsDCUntil;
 
-  private static String checkListRecordsDATACITEFrom;
-  private static String checkListRecordsDATACITEUntil;
+  private static String checkListRecordsDataciteFrom;
+  private static String checkListRecordsDataciteUntil;
 
   private static String checkListIdentifiersSet;
   private static Integer checkListIdentifiersSetExpectedPages;
@@ -90,8 +90,8 @@ public class TestDHOaipmhOnline {
     checkGetRecordDC = p.getProperty("checkGetRecordDC");
     expectedGetRecordDC = p.getProperty("expectedGetRecordDC");
 
-    checkGetRecordDATACITE = p.getProperty("checkGetRecordDATACITE");
-    expectedGetRecordDATACITE = p.getProperty("expectedGetRecordDATACITE");
+    checkGetRecordDatacite = p.getProperty("checkGetRecordDatacite");
+    expectedGetRecordDatacite = p.getProperty("expectedGetRecordDatacite");
 
     checkListRecordsDCSet = p.getProperty("checkListRecordsDCSet");
     checkListRecordsDCSetExpectedPages =
@@ -100,8 +100,8 @@ public class TestDHOaipmhOnline {
     checkListRecordsDCFrom = p.getProperty("checkListRecordsDCFrom");
     checkListRecordsDCUntil = p.getProperty("checkListRecordsDCUntil");
 
-    checkListRecordsDATACITEFrom = p.getProperty("checkListRecordsDATACITEFrom");
-    checkListRecordsDATACITEUntil = p.getProperty("checkListRecordsDATACITEUntil");
+    checkListRecordsDataciteFrom = p.getProperty("checkListRecordsDataciteFrom");
+    checkListRecordsDataciteUntil = p.getProperty("checkListRecordsDataciteUntil");
 
     checkListIdentifiersSet = p.getProperty("checkListIdentifiersSet");
     checkListIdentifiersSetExpectedPages =
@@ -375,7 +375,7 @@ public class TestDHOaipmhOnline {
         OaipmhUtilitiesOnline.VERB_LIST_RECORDS,
         OaipmhUtilitiesOnline.OAI_DATACITE_PREFIX,
         OaipmhUtilitiesOnline.NO_SET,
-        checkListRecordsDATACITEFrom, checkListRecordsDATACITEUntil);
+        checkListRecordsDataciteFrom, checkListRecordsDataciteUntil);
   }
 
   /**
@@ -402,10 +402,10 @@ public class TestDHOaipmhOnline {
     System.out.println(OaipmhUtilitiesOnline.TESTING + "#GETRECORD");
 
     OaipmhUtilitiesOnline.testDHRecord(oaipmhWebClient,
-        checkGetRecordDATACITE,
+        checkGetRecordDatacite,
         OaipmhUtilitiesOnline.VERB_GET_RECORD,
         OaipmhUtilitiesOnline.OAI_DATACITE_PREFIX,
-        expectedGetRecordDATACITE);
+        expectedGetRecordDatacite);
   }
 
   /**
diff --git a/oaipmh-webapp/src/main/webapp/WEB-INF/beans.xml b/oaipmh-webapp/src/main/webapp/WEB-INF/beans.xml
index 262d799cc5f64f02bd58e962fd33da92065b5f61..7a4807ba5228971c2780cd2be9d0793462fd9a0c 100644
--- a/oaipmh-webapp/src/main/webapp/WEB-INF/beans.xml
+++ b/oaipmh-webapp/src/main/webapp/WEB-INF/beans.xml
@@ -13,7 +13,8 @@
 	http://www.springframework.org/schema/util
 	http://www.springframework.org/schema/util/spring-util-3.1.xsd">
 
-	<description>Configuration for the DARIAH-DE OAI-PMH Interfaces</description>
+	<description>Configuration for the DARIAH-DE OAI-PMH Interfaces
+	</description>
 
 	<import resource="classpath:META-INF/cxf/cxf.xml" />
 	<import resource="classpath:META-INF/cxf/cxf-servlet.xml" />
@@ -71,7 +72,6 @@
 		<constructor-arg ref="ListIdentifierDC" />
 		<constructor-arg ref="ListIdentifierIdiom" />
 		<constructor-arg ref="ListIdentifierDatacite" />
-		<constructor-arg ref="IdiomImages" />
 
 		<property name="textGrid" value="${textgrid}" />
 		<property name="dariah" value="${dariah}" />
diff --git a/pom.xml b/pom.xml
index 6be2f59c73eac4b3a6fd6d46712c6fd2572e30c1..150bb7b868116f7ee4ca2f8e91b6e3e35846dafa 100644
--- a/pom.xml
+++ b/pom.xml
@@ -24,7 +24,7 @@
 		<maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
 		<maven-eclipse-plugin.version>2.10</maven-eclipse-plugin.version>
 		<maven-jaxb2-plugin.version>0.14.0</maven-jaxb2-plugin.version>
-		<mets-mods-mapping.version>2.0.1</mets-mods-mapping.version>
+		<mets-mods-mapping.version>2.1.0</mets-mods-mapping.version>
 		<package-info-maven-plugin.version>1.4.5</package-info-maven-plugin.version>
 		<properties-maven-plugin.version>1.0-alpha-2</properties-maven-plugin.version>
 		<rdf4j-repository-api.version>3.0.2</rdf4j-repository-api.version>