diff --git a/com.avaloq.tools.ddk.xtext/src/com/avaloq/tools/ddk/xtext/resource/persistence/ProxyModelAssociationsAdapter.java b/com.avaloq.tools.ddk.xtext/src/com/avaloq/tools/ddk/xtext/resource/persistence/ProxyModelAssociationsAdapter.java
index 54d37e9fa..52c868e60 100644
--- a/com.avaloq.tools.ddk.xtext/src/com/avaloq/tools/ddk/xtext/resource/persistence/ProxyModelAssociationsAdapter.java
+++ b/com.avaloq.tools.ddk.xtext/src/com/avaloq/tools/ddk/xtext/resource/persistence/ProxyModelAssociationsAdapter.java
@@ -67,7 +67,7 @@ private void ensureAssociationsLoaded() {
       return;
     }
     synchronized (resource) {
-      if (resource.eAdapters().remove(this)) {
+      if (resource.eAdapters().remove(this)) { // NOPMD - CollectionTypeMismatch (false positive: `this` implements `InferredModelAssociator.Adapter`)
         DirectLinkingResourceStorageLoadable loadable = (DirectLinkingResourceStorageLoadable) ((DirectLinkingResourceStorageFacade) resource.getResourceStorageFacade()).getOrCreateResourceStorageLoadable(resource);
         try {
           // the associations are mappings from AST model elements to inferred model elements (and back) so we cannot skip loading the model.