diff --git a/Kitodo-DataEditor/src/main/java/org/kitodo/dataeditor/ruleset/RulesetManagement.java b/Kitodo-DataEditor/src/main/java/org/kitodo/dataeditor/ruleset/RulesetManagement.java
index 6bc9e582088..a7e80a4a06b 100644
--- a/Kitodo-DataEditor/src/main/java/org/kitodo/dataeditor/ruleset/RulesetManagement.java
+++ b/Kitodo-DataEditor/src/main/java/org/kitodo/dataeditor/ruleset/RulesetManagement.java
@@ -167,7 +167,8 @@ public StructuralElementViewInterface getStructuralElementView(String divisionId
             List<LanguageRange> priorityList) {
 
         Optional<Division> division = ruleset.getDivision(divisionId);
-        DivisionDeclaration divisionDeclaration = division.isPresent() ? new DivisionDeclaration(ruleset, division.get())
+        DivisionDeclaration divisionDeclaration = division.isPresent()
+                ? new DivisionDeclaration(ruleset, division.get())
                 : new DivisionDeclaration(ruleset, divisionId);
         return new DivisionView(ruleset, divisionDeclaration, acquisitionStage, priorityList);
     }
@@ -176,17 +177,19 @@ public StructuralElementViewInterface getStructuralElementView(String divisionId
      * Opens a views on a metadata of the ruleset.
      *
      * @param keyId
-     *          the id of the metadata
+     *            the id of the metadata
      * @param acquisitionStage
-     *          the current acquisition level
+     *            the current acquisition level
      * @param priorityList
-     *          the list of display languages preferred by the user
+     *            the list of display languages preferred by the user
      * @return a view on a metadata
      */
     @Override
-    public NestedKeyView<KeyDeclaration> getMetadataView(String keyId, String acquisitionStage, List<LanguageRange> priorityList) {
+    public NestedKeyView<KeyDeclaration> getMetadataView(String keyId, String acquisitionStage,
+            List<LanguageRange> priorityList) {
         Optional<Key> key = ruleset.getKey(keyId);
-        KeyDeclaration keyDeclaration = key.isPresent() ? new KeyDeclaration(ruleset, key.get()) : new KeyDeclaration(ruleset, keyId);
+        KeyDeclaration keyDeclaration = key.isPresent() ? new KeyDeclaration(ruleset, key.get())
+                : new KeyDeclaration(ruleset, keyId);
         Rule rule = ruleset.getRuleForKey(keyId);
         return new NestedKeyView<>(ruleset, keyDeclaration, rule, ruleset.getSettings(acquisitionStage), priorityList);
     }
@@ -331,7 +334,8 @@ public int updateMetadata(Collection<Metadata> currentMetadata, String acquisiti
             Collection<Metadata> updateMetadata) {
 
         final Function<String, MutableTriple<Collection<Metadata>, Reimport, Collection<Metadata>>> entryProducer = key -> {
-            var entry = new MutableTriple<Collection<Metadata>, Reimport, Collection<Metadata>>();
+            MutableTriple<Collection<Metadata>, Reimport, Collection<Metadata>> entry =
+                    new MutableTriple<Collection<Metadata>, Reimport, Collection<Metadata>>();
             entry.setLeft(new ArrayList<>());
             entry.setRight(new ArrayList<>());
             return entry;
diff --git a/Kitodo-Docket/src/main/java/org/kitodo/docket/ExportXmlLog.java b/Kitodo-Docket/src/main/java/org/kitodo/docket/ExportXmlLog.java
index 12749bfa3ea..735ce9695d7 100644
--- a/Kitodo-Docket/src/main/java/org/kitodo/docket/ExportXmlLog.java
+++ b/Kitodo-Docket/src/main/java/org/kitodo/docket/ExportXmlLog.java
@@ -20,6 +20,7 @@
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
@@ -350,7 +351,7 @@ private List<Element> createMetadataElements(Namespace xmlns, DocketData docketD
             HashMap<String, String> names = getNamespacesFromConfig();
             Namespace[] namespaces = new Namespace[names.size()];
             int index = 0;
-            for (var entries = names.entrySet().iterator(); entries.hasNext(); index++) {
+            for (Iterator<Entry<String, String>> entries = names.entrySet().iterator(); entries.hasNext(); index++) {
                 Entry<String, String> entry = entries.next();
                 namespaces[index] = Namespace.getNamespace(entry.getKey(), entry.getValue());
             }