diff --git a/src/main/java/io/wcm/caconfig/extensions/persistence/impl/PagePersistenceStrategy.java b/src/main/java/io/wcm/caconfig/extensions/persistence/impl/PagePersistenceStrategy.java
index 90551cf..0fe8320 100644
--- a/src/main/java/io/wcm/caconfig/extensions/persistence/impl/PagePersistenceStrategy.java
+++ b/src/main/java/io/wcm/caconfig/extensions/persistence/impl/PagePersistenceStrategy.java
@@ -28,6 +28,7 @@
 import static io.wcm.caconfig.extensions.persistence.impl.PersistenceUtils.ensureContainingPage;
 import static io.wcm.caconfig.extensions.persistence.impl.PersistenceUtils.ensurePageIfNotContainingPage;
 import static io.wcm.caconfig.extensions.persistence.impl.PersistenceUtils.getOrCreateResource;
+import static io.wcm.caconfig.extensions.persistence.impl.PersistenceUtils.isItemModifiedOrNewlyAdded;
 import static io.wcm.caconfig.extensions.persistence.impl.PersistenceUtils.replaceProperties;
 import static io.wcm.caconfig.extensions.persistence.impl.PersistenceUtils.updatePageLastMod;
 
@@ -56,6 +57,7 @@
 /**
  * AEM-specific persistence strategy that has higher precedence than the default strategy from Sling,
  * but lower precedence that the persistence strategy that is part of AEM since version 6.3.
+ *
  * <p>
  * It supports reading configurations from cq:Page nodes in /conf, the configuration is read from the jcr:content child
  * node. Unlike the persistence strategy in AEM 6.3 this also supports writing configuration to /conf.
diff --git a/src/main/java/io/wcm/caconfig/extensions/references/impl/ConfigurationReferenceProvider.java b/src/main/java/io/wcm/caconfig/extensions/references/impl/ConfigurationReferenceProvider.java
index c2d0b7e..53a1466 100644
--- a/src/main/java/io/wcm/caconfig/extensions/references/impl/ConfigurationReferenceProvider.java
+++ b/src/main/java/io/wcm/caconfig/extensions/references/impl/ConfigurationReferenceProvider.java
@@ -55,15 +55,15 @@
 import com.day.cq.wcm.api.reference.ReferenceProvider;
 
 /**
- * <p>
  * This implementation of {@link ReferenceProvider} allows to resolve references of a given {@link Resource} to
  * context-aware configurations.
- * </p>
+ *
  * <p>
  * This is for example used by ActivationReferenceSearchServlet to resolve referenced content of pages during activation
  * of a page using AEM sites. Returning the configurations allows the editor to activate them along with the page
  * referring to them.
  * </p>
+ *
  * <p>
  * This component can be disabled by configuration, but its enabled by default.
  * </p>
@@ -130,7 +130,8 @@ public List<com.day.cq.wcm.api.reference.Reference> findReferences(Resource reso
     Set<String> configurationBuckets = new LinkedHashSet<>(configurationResourceResolverConfig.configBucketNames());
 
     for (String configurationName : configurationMetadatas.keySet()) {
-      Iterator<Resource> configurationInheritanceChain = configurationResourceResolvingStrategy.getResourceInheritanceChain(resource, configurationBuckets, configurationName);
+      Iterator<Resource> configurationInheritanceChain = configurationResourceResolvingStrategy.getResourceInheritanceChain(resource, configurationBuckets,
+          configurationName);
       Map<String, Page> referencePages = new LinkedHashMap<>();
 
       while (configurationInheritanceChain != null && configurationInheritanceChain.hasNext()) {
diff --git a/src/main/java/io/wcm/caconfig/extensions/references/impl/CoreCompReferenceProviderDisabler.java b/src/main/java/io/wcm/caconfig/extensions/references/impl/CoreCompReferenceProviderDisabler.java
index 82188f4..2557ca6 100644
--- a/src/main/java/io/wcm/caconfig/extensions/references/impl/CoreCompReferenceProviderDisabler.java
+++ b/src/main/java/io/wcm/caconfig/extensions/references/impl/CoreCompReferenceProviderDisabler.java
@@ -38,15 +38,18 @@
  * to the core components. It implements a much simplified logic compared to {@link ConfigurationReferenceProvider}
  * and does not properly detect the last modification date if one of the wcm.io persistence strategies
  * is used which stores the configuration in AEM pages that can be properly activated.
+ *
  * <p>
  * To avoid conflicts with the two implementations trying to achieve the same, this services checks if
  * the Core Component reference provider is present, and deactivates it.
  * </p>
+ *
  * <p>
  * Unfortunately there is no better way, as the Core Component reference provider does not support to be disabled via
  * OSGi configuration, and the AEM WCM Core implementation does not sort the reference providers by service ranking.
  * If both reference providers are active at the same time it's a matter of luck who "wins".
  * </p>
+ *
  * <p>
  * The implementation of this service is heavily inspired by the "Component Disabler" of ACS AEM Commons.
  * </p>