Ignore child resources of parsys without assigned resource type (returning nt:unstructured as resource type)

changes.xml

@@ -27,6 +27,9 @@
       <action type="update" dev="sseifert">
         Switch to AEM 6.5.17 as minimum version.
       </action>
+      <action type="fix" dev="sseifert" issue="2">
+        Ignore child resources of parsys without assigned resource type (returning nt:unstructured as resource type).
+      </action>
     </release>
 
     <release version="1.7.2" date="2023-12-18">

src/main/java/io/wcm/wcm/parsys/controller/Parsys.java

@@ -27,6 +27,7 @@
 import static io.wcm.wcm.parsys.ParsysNameConstants.PN_PARSYS_PARAGRAPH_VALIDATE;
 import static io.wcm.wcm.parsys.ParsysNameConstants.PN_PARSYS_WRAPPER_CSS;
 import static io.wcm.wcm.parsys.ParsysNameConstants.PN_PARSYS_WRAPPER_ELEMENT;
+import static org.apache.jackrabbit.JcrConstants.NT_UNSTRUCTURED;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -157,6 +158,9 @@ private void activate() {
       parsysParentResource = currentResource;
     }
     for (Resource childResource : parsysParentResource.getChildren()) {
+      if (!acceptResource(childResource)) {
+        continue;
+      }
       Item item = createResourceItem(childResource);
       if (wcmMode != WCMMode.DISABLED || item.isValid()) {
         items.add(item);
@@ -167,6 +171,11 @@ private void activate() {
     }
   }
 
+  private static boolean acceptResource(Resource resource) {
+    // skip resources without assigned resource type
+    return !StringUtils.equals(resource.getResourceType(), NT_UNSTRUCTURED);
+  }
+
   private static boolean getDecoration(String[] paragraphNoDecorationWcmMode, WCMMode wcmMode) {
     if (paragraphNoDecorationWcmMode != null && paragraphNoDecorationWcmMode.length > 0) {
       for (String wcmModeItem : paragraphNoDecorationWcmMode) {
@@ -364,6 +373,9 @@ public boolean isWrapperElement() {
   private <T> Map<String, T> getChildModels(@NotNull Class<T> modelClass) {
     Map<String, T> models = new LinkedHashMap<>();
     for (Resource child : slingModelFilter.filterChildResources(currentResource.getChildren())) {
+      if (!acceptResource(child)) {
+        continue;
+      }
       T model = modelFactory.getModelFromWrappedRequest(request, child, modelClass);
       if (model != null) {
         models.put(child.getName(), model);

src/test/java/io/wcm/wcm/parsys/controller/ParsysTest.java

@@ -122,6 +122,9 @@ public Iterable<Resource> answer(InvocationOnMock invocation) throws Throwable {
     par2Resource = context.create().resource(parsysResource.getPath() + "/par2",
         "sling:resourceType", COMPONENT_PATH_2,
         "valid", false);
+    // this should be always ignored as it does not contain a resource type
+    context.create().resource(parsysResource.getPath() + "/ignore1",
+        "valid", true);
 
     context.currentResource(parsysResource);
   }
@@ -315,7 +318,8 @@ void testNewAreaResourceTypeFromSuperComponent() {
   void testOtherParentParsysResource() {
     context.create().resource("/apps/" + RESOURCE_TYPE_SAMPLE);
     parsysResource = context.create().resource(page.getContentResource().getPath() + "/parsysOther");
-    par1Resource = context.create().resource(parsysResource.getPath() + "/par1");
+    par1Resource = context.create().resource(parsysResource.getPath() + "/par1",
+        "sling:resourceType", RESOURCE_TYPE_SAMPLE);
 
     context.request().setAttribute(RA_PARSYS_PARENT_RESOURCE, parsysResource);