diff --git a/oaipmh-core/src/main/java/info/textgrid/middleware/RecordListDelivererAbstract.java b/oaipmh-core/src/main/java/info/textgrid/middleware/RecordListDelivererAbstract.java
index 95755cf72b3ea543fa6ffa5c00d47f24ed89fcc3..e54a87cd9a069730296598dd7bd378926b5902f0 100644
--- a/oaipmh-core/src/main/java/info/textgrid/middleware/RecordListDelivererAbstract.java
+++ b/oaipmh-core/src/main/java/info/textgrid/middleware/RecordListDelivererAbstract.java
@@ -2,100 +2,121 @@ package info.textgrid.middleware;
 
 import java.util.ArrayList;
 import java.util.List;
-
 import info.textgrid.middleware.oaipmh.RequestType;
 
-public abstract class RecordListDelivererAbstract implements RecordListDelivererInterface{
-	
-	  protected boolean textgrid;
-	  protected boolean dariah;
-	  private static boolean idiomMets;
-	  private static boolean dublinCore;
-	  /** 
-	   * @param textgrid
-	   * @param dariah
-	   */
-	  
-	  public RecordListDelivererAbstract(boolean textgrid, boolean dariah) {
-		    this.textgrid = textgrid;
-		    this.dariah = dariah;
-	  }
-	  
-	  public static ErrorHandler requestChecker(RequestType request) {
-
-		    ErrorHandler result = new ErrorHandler();
-
-		    // Check if metadata prefix is existing and valid.
-		    if (request.getMetadataPrefix() != null
-		        && !request.getMetadataPrefix().equals(TGConstants.METADATA_DC_PREFIX)
-		        && !request.getMetadataPrefix().equals(TGConstants.METADATA_IDIOM_PREFIX)) {
-		      result.setError(TGConstants.OAI_METADATA_FORMAT_ERROR,
-		          "The value of the metadataPrefix: " + request.getMetadataPrefix()
-		              + " is not supported by the item identified by the value of: "
-		              + request.getIdentifier());
-		    }
-		    // Check if resumptioToken is valid
-			if(request.getResumptionToken() != null) {
-			
-				if(RecordListDelivererAbstract.isIdiomMets() && RecordListDelivererIDIOM.cursorCollector.containsKey(request.getResumptionToken())) {
-					RecordListDelivererAbstract.setIdiomMets(true);
-					RecordListDelivererAbstract.setDublinCore(false);					
-				}else if(RecordListDelivererAbstract.isDublinCore() && RecordListDelivererDC.cursorCollector.containsKey(request.getResumptionToken())){
-					RecordListDelivererAbstract.setDublinCore(true);
-					RecordListDelivererAbstract.setIdiomMets(false);
-				}else {
-				  	result.setError(TGConstants.OAI_BAD_RESUMPTION_TOKEN, 
-				  			"The value of the " + request.getResumptionToken() + " argument is invalid or expired.");
-				}
-			}
-		    
-		   if (request.getResumptionToken() == null && request.getMetadataPrefix() != null) {
-		    	if(request.getMetadataPrefix().equals(TGConstants.METADATA_IDIOM_PREFIX)) {
-		    		RecordListDelivererAbstract.setIdiomMets(true);
-		    		RecordListDelivererAbstract.setDublinCore(false);
-		    	}
-		    	if(request.getMetadataPrefix().equals(TGConstants.METADATA_DC_PREFIX)) {
-		    		RecordListDelivererAbstract.setDublinCore(true);
-		    		RecordListDelivererAbstract.setIdiomMets(false);
-		    	}
-			}
-		    
-		    // Check if other params are existing, they shouldn't!
-		    else {
-		      List<String> errorValues = new ArrayList<String>();
-
-		      if (request.getResumptionToken() != null && request.getMetadataPrefix() !=null) {
-			        errorValues.add("metadataPrefix");
-			      }	     
-			      if (request.getResumptionToken() == null && request.getMetadataPrefix() == null) {
-			        errorValues.add("metadataPrefix");		        
-			      }
-			      if (request.getIdentifier() != null) {
-			        errorValues.add("identifier");
-			      }
-			      if(errorValues.size()>0) {
-			          result.setError(TGConstants.OAI_BAD_ARGUMENT, "The request includes illegal arguments "
-			                  + "or is missing required arguments: " + errorValues);
-			      }
-
-		    }
-
-		    return result;
-		  }
-
-	public static boolean isIdiomMets() {
-		return idiomMets;
-	}
-
-	public static void setIdiomMets(boolean idiomMets) {
-		RecordListDelivererAbstract.idiomMets = idiomMets;
-	}
-
-	public static boolean isDublinCore() {
-		return dublinCore;
-	}
-
-	public static void setDublinCore(boolean dublinCore) {
-		RecordListDelivererAbstract.dublinCore = dublinCore;
-	}
+/**
+ *
+ */
+public abstract class RecordListDelivererAbstract implements RecordListDelivererInterface {
+
+  protected boolean textgrid;
+  protected boolean dariah;
+  private static boolean idiomMets;
+  private static boolean dublinCore;
+
+  /**
+   * @param textgrid
+   * @param dariah
+   */
+  public RecordListDelivererAbstract(boolean textgrid, boolean dariah) {
+    this.textgrid = textgrid;
+    this.dariah = dariah;
+  }
+
+  /**
+   * @param request
+   * @return
+   */
+  public static ErrorHandler requestChecker(RequestType request) {
+
+    ErrorHandler result = new ErrorHandler();
+
+    // Check if metadata prefix is existing and valid.
+    if (request.getMetadataPrefix() != null
+        && !request.getMetadataPrefix().equals(TGConstants.METADATA_DC_PREFIX)
+        && !request.getMetadataPrefix().equals(TGConstants.METADATA_IDIOM_PREFIX)) {
+      result.setError(TGConstants.OAI_METADATA_FORMAT_ERROR,
+          "The value of the metadataPrefix: " + request.getMetadataPrefix()
+              + " is not supported by the item identified by the value of: "
+              + request.getIdentifier());
+    }
+    // Check if resumptioToken is valid
+    if (request.getResumptionToken() != null) {
+
+      if (RecordListDelivererAbstract.isIdiomMets()
+          && RecordListDelivererIDIOM.cursorCollector.containsKey(request.getResumptionToken())) {
+        RecordListDelivererAbstract.setIdiomMets(true);
+        RecordListDelivererAbstract.setDublinCore(false);
+      } else if (RecordListDelivererAbstract.isDublinCore()
+          && RecordListDelivererDC.cursorCollector.containsKey(request.getResumptionToken())) {
+        RecordListDelivererAbstract.setDublinCore(true);
+        RecordListDelivererAbstract.setIdiomMets(false);
+      } else {
+        result.setError(TGConstants.OAI_BAD_RESUMPTION_TOKEN,
+            "The value of the " + request.getResumptionToken()
+                + " argument is invalid or expired.");
+      }
+    }
+
+    if (request.getResumptionToken() == null && request.getMetadataPrefix() != null) {
+      if (request.getMetadataPrefix().equals(TGConstants.METADATA_IDIOM_PREFIX)) {
+        RecordListDelivererAbstract.setIdiomMets(true);
+        RecordListDelivererAbstract.setDublinCore(false);
+      }
+      if (request.getMetadataPrefix().equals(TGConstants.METADATA_DC_PREFIX)) {
+        RecordListDelivererAbstract.setDublinCore(true);
+        RecordListDelivererAbstract.setIdiomMets(false);
+      }
+    }
+
+    // Check if other params are existing, they shouldn't!
+    else {
+      List<String> errorValues = new ArrayList<String>();
+
+      if (request.getResumptionToken() != null && request.getMetadataPrefix() != null) {
+        errorValues.add("metadataPrefix");
+      }
+      if (request.getResumptionToken() == null && request.getMetadataPrefix() == null) {
+        errorValues.add("metadataPrefix");
+      }
+      if (request.getIdentifier() != null) {
+        errorValues.add("identifier");
+      }
+      if (errorValues.size() > 0) {
+        result.setError(TGConstants.OAI_BAD_ARGUMENT, "The request includes illegal arguments "
+            + "or is missing required arguments: " + errorValues);
+      }
+
+    }
+
+    return result;
+  }
+
+  /**
+   * @return
+   */
+  public static boolean isIdiomMets() {
+    return idiomMets;
+  }
+
+  /**
+   * @param idiomMets
+   */
+  public static void setIdiomMets(boolean idiomMets) {
+    RecordListDelivererAbstract.idiomMets = idiomMets;
+  }
+
+  /**
+   * @return
+   */
+  public static boolean isDublinCore() {
+    return dublinCore;
+  }
+
+  /**
+   * @param dublinCore
+   */
+  public static void setDublinCore(boolean dublinCore) {
+    RecordListDelivererAbstract.dublinCore = dublinCore;
+  }
 }
diff --git a/oaipmh-core/src/main/java/info/textgrid/middleware/RecordListDelivererDC.java b/oaipmh-core/src/main/java/info/textgrid/middleware/RecordListDelivererDC.java
index 71d32bab460a3271fae5ca174e7b2d7bc15ad1d4..431cc958bb97ae36323f5c95ab708ff179e07ecd 100644
--- a/oaipmh-core/src/main/java/info/textgrid/middleware/RecordListDelivererDC.java
+++ b/oaipmh-core/src/main/java/info/textgrid/middleware/RecordListDelivererDC.java
@@ -29,7 +29,6 @@ import info.textgrid.middleware.oaipmh.ResumptionTokenType;
  * FIXME Care about all repeatable fields as done in TITLE!
  */
 public class RecordListDelivererDC extends RecordListDelivererAbstract{
-
   // **
   // STATICS
   // **
@@ -157,7 +156,7 @@ public class RecordListDelivererDC extends RecordListDelivererAbstract{
       recordFilter = query;
     } else {
       recordFilter = QueryBuilders.boolQuery().must(query)
-          .must(QueryBuilders.matchPhraseQuery(formatField, formatToFilter));
+          .must(QueryBuilders.matchPhraseQuery(this.formatField, this.formatToFilter));
     }
 
     if (resumptionToken == null) {
@@ -168,7 +167,7 @@ public class RecordListDelivererDC extends RecordListDelivererAbstract{
     		  .setTypes(OAI_ESClient.getEsType())
     		  .addFields(this.fields)
     		  .setQuery(recordFilter)
-    		  .setSize(searchResponseSize)
+    		  .setSize(this.searchResponseSize)
     		  .execute()
           .actionGet();
     } else {
@@ -176,7 +175,7 @@ public class RecordListDelivererDC extends RecordListDelivererAbstract{
           .setScroll(new TimeValue(lifeTimeResToken)).execute().actionGet();
     }
     
-    log.info("Quried fields: " + fields.toString());
+    log.info("Queried fields: " + this.fields.toString());
     log.info("Life time for resumption token is set to: " + lifeTimeResToken);
     
     scrollID = scrollResp.getScrollId();
@@ -204,13 +203,13 @@ public class RecordListDelivererDC extends RecordListDelivererAbstract{
           } catch (DatatypeConfigurationException e1) {
             log.debug(e1);
           }
-          modifiedValue = hit.getFields().get(this.modifiedField).getValue().toString();
+          this.modifiedValue = hit.getFields().get(this.modifiedField).getValue().toString();
 
           // TextGrid search!
           String workUri = "";
 
-          if (this.textgrid == true && hit.getFields().get(formatField).values().get(0).toString()
-              .equals(formatToFilter)) {
+          if (this.textgrid == true && hit.getFields().get(this.formatField).values().get(0).toString()
+              .equals(this.formatToFilter)) {
             if (hit.getFields().get(this.relationToFurtherMetadataObject) != null) {
               workUri = hit.getFields().get(this.relationToFurtherMetadataObject).values().get(0)
                   .toString().substring(this.repositoryObjectURIPrefix.length());
@@ -240,7 +239,7 @@ public class RecordListDelivererDC extends RecordListDelivererAbstract{
 
       // Check the need for a resumption token!
       ResumptionTokenType resTokenForResponse = OAIPMHUtillities.getResumptionToken(
-          completeListSize, resumptionToken, cursorCollector, scrollID, searchResponseSize, i);
+          completeListSize, resumptionToken, cursorCollector, scrollID, this.searchResponseSize, i);
       if (resTokenForResponse != null) {
         recordList.setResumptionToken(resTokenForResponse);
       }
@@ -662,32 +661,53 @@ public class RecordListDelivererDC extends RecordListDelivererAbstract{
     this.foundItems = foundItems;
   }
 
+  /**
+   * @return
+   */
   public String getModifiedField() {
-    return modifiedField;
+    return this.modifiedField;
   }
 
+  /**
+   * @param modifiedField
+   */
   public void setModifiedField(String modifiedField) {
     this.modifiedField = modifiedField;
   }
 
+  /**
+   * @return
+   */
   public String getIdentifierField() {
-    return identifierField;
+    return this.identifierField;
   }
 
+  /**
+   * @param identifierField
+   */
   public void setIdentifierField(String identifierField) {
     this.identifierField = identifierField;
   }
 
+  /**
+   * @return
+   */
   public int getSearchResponseSize() {
-    return searchResponseSize;
+    return this.searchResponseSize;
   }
 
+  /**
+   * @param searchResponseSize
+   */
   public void setSearchResponseSize(String searchResponseSize) {
     this.searchResponseSize = Integer.parseInt(searchResponseSize);
   }
 
+  /**
+   * @return
+   */
   public boolean getTextGrid() {
-	  return textgrid;
+	  return this.textgrid;
   }
   
   // public String getCollectionTitle() {
@@ -711,10 +731,16 @@ public class RecordListDelivererDC extends RecordListDelivererAbstract{
     this.workFields = workFields;
   }
 
+  /**
+   * @param fields
+   */
   public void setFields(String[] fields) {
 	this.fields = fields;
   }
 
+  /**
+   * @return
+   */
   public String[] getFields() {
 	return this.fields;
   }
diff --git a/oaipmh-core/src/main/java/info/textgrid/middleware/RecordListDelivererIDIOM.java b/oaipmh-core/src/main/java/info/textgrid/middleware/RecordListDelivererIDIOM.java
index c7378b2cd65265fb4ba77bee6cbf8711cfd660d8..e8d9a1189e07db66c6d59f9d9fa330ddaab319fe 100644
--- a/oaipmh-core/src/main/java/info/textgrid/middleware/RecordListDelivererIDIOM.java
+++ b/oaipmh-core/src/main/java/info/textgrid/middleware/RecordListDelivererIDIOM.java
@@ -1,6 +1,5 @@
 package info.textgrid.middleware;
 
-
 import java.util.Hashtable;
 import java.util.List;
 import java.util.Map;
@@ -15,6 +14,9 @@ import info.textgrid.middleware.oaipmh.MetadataType;
 import info.textgrid.middleware.oaipmh.RecordType;
 import info.textgrid.middleware.oaipmh.ResumptionTokenType;
 
+/**
+ *
+ */
 public class RecordListDelivererIDIOM extends RecordListDelivererAbstract{
 
 	private static org.apache.commons.logging.Log log = LogFactory.getLog(OAIPMHImpl.class);
@@ -22,11 +24,18 @@ public class RecordListDelivererIDIOM extends RecordListDelivererAbstract{
 	
 	private OAI_ESClient oaiEsClient;
 	
+	/**
+	 * @param textgrid
+	 * @param dariah
+	 */
 	public RecordListDelivererIDIOM(boolean textgrid, boolean dariah) {
 		super(textgrid, dariah);
 		// TODO Auto-generated constructor stub
 	}
 
+	/* (non-Javadoc)
+	 * @see info.textgrid.middleware.RecordListDelivererInterface#buildRecord(info.textgrid.middleware.oaipmh.ListRecordsType, java.lang.String, java.lang.String)
+	 */
 	@Override
 	public RecordType buildRecord(ListRecordsType recordList, String set, String headerIdentifier) {
 				
@@ -39,6 +48,9 @@ public class RecordListDelivererIDIOM extends RecordListDelivererAbstract{
 		return null;
 	}
 
+	/* (non-Javadoc)
+	 * @see info.textgrid.middleware.RecordListDelivererInterface#getRecords(java.lang.String, java.lang.String, java.lang.String, java.lang.String)
+	 */
 	@Override
 	public ListRecordsType getRecords(String from, String to, String set, String resumptionToken) {
 
@@ -50,7 +62,8 @@ public class RecordListDelivererIDIOM extends RecordListDelivererAbstract{
 		if(resumptionToken==null) {
 			
 			artefactURIs = queries.getArtefactList(0);
-		}else {
+		} else {
+		  // FIXME @Max: Hier gibt's eine NPE, wenn ein resumptionToken für oai_dc existiert. Komisch?
 			artefactURIs = queries.getArtefactList(cursorCollector.get(resumptionToken));			
 		}
 	    
@@ -78,16 +91,25 @@ public class RecordListDelivererIDIOM extends RecordListDelivererAbstract{
 	    return recordList;
 	}
 
+	/* (non-Javadoc)
+	 * @see info.textgrid.middleware.RecordListDelivererInterface#setHeader(java.lang.String, java.lang.String)
+	 */
 	@Override
 	public HeaderType setHeader(String set, String headerIdentifier) {
 		// TODO Auto-generated method stub
 		return null;
 	}
 
+	/**
+	 * @return
+	 */
 	public OAI_ESClient getOaiEsClient() {
 		return oaiEsClient;
 	}
 
+	/**
+	 * @param oaiEsClient
+	 */
 	public void setOaiEsClient(OAI_ESClient oaiEsClient) {
 		this.oaiEsClient = oaiEsClient;
 	}
diff --git a/oaipmh-core/src/test/java/info/textgrid/middleware/OaiPmhTextgridOnlineTests.java b/oaipmh-core/src/test/java/info/textgrid/middleware/OaiPmhTextgridOnlineTests.java
index 4faea6163b101675ef4364d44e089cce080f53fc..d3f55ff947d4b9b162898a7700557b0951b0cf91 100644
--- a/oaipmh-core/src/test/java/info/textgrid/middleware/OaiPmhTextgridOnlineTests.java
+++ b/oaipmh-core/src/test/java/info/textgrid/middleware/OaiPmhTextgridOnlineTests.java
@@ -23,8 +23,8 @@ import info.textgrid.utils.httpclient.TGHttpResponse;
 public class OaiPmhTextgridOnlineTests {
 
   // The OAIPMH host to be tested.
-  private static String host = "http://textgrid-esx1.gwdg.de/1.0/tgoaipmh/";
-  // private static String host = "https://textgridlab.org/1.0/tgoaipmh/";
+  // private static String host = "http://textgrid-esx1.gwdg.de/1.0/tgoaipmh/";
+  private static String host = "http://textgridlab.org/1.0/tgoaipmh/";
 
   // Some output finals.
   private static final String ERROR = ">>> ERROR";
@@ -81,7 +81,7 @@ public class OaiPmhTextgridOnlineTests {
 
     TGHttpResponse httpResponse = getHttpResponse(host + "oai/version");
     int status = httpResponse.getStatusCode();
-    
+
     String response = IOUtils.readStringFromStream(httpResponse.getInputstream());
 
     if (status != HttpStatus.SC_OK || !response.startsWith(shouldStartWith)) {