raducotescu commented on a change in pull request #21:
URL: 
https://github.com/apache/sling-org-apache-sling-models-impl/pull/21#discussion_r507661762



##########
File path: src/main/java/org/apache/sling/models/impl/ModelAdapterFactory.java
##########
@@ -404,11 +430,7 @@ public boolean isModelClass(@NotNull Class<?> type) {
                         ModelType model = (ModelType) 
Proxy.newProxyInstance(modelClass.getType().getClassLoader(), new Class<?>[] { 
modelClass.getType() }, handlerResult.getValue());
 
                         if (modelAnnotation.cache()) {
-                            Map<Class<?>, SoftReference<Object>> 
adaptableCache = adapterCache.get(cacheKey);
-                            if (adaptableCache == null) {
-                                adaptableCache = 
Collections.synchronizedMap(new WeakHashMap<Class<?>, SoftReference<Object>>());
-                                adapterCache.put(cacheKey, adaptableCache);
-                            }
+                            Map<Class<?>, SoftReference<Object>> 
adaptableCache = getOrCreateCache(adaptable);

Review comment:
       Don't we already know here that there was no cache created for this 
`adaptable`? If a cache was available, we would have returned the result 
already - see 
https://github.com/apache/sling-org-apache-sling-models-impl/pull/21/files#diff-0c273224a9fa6e263f4381c5d4b8145aa2c6c89e75e0b62025eea5efa17edec9R401.

##########
File path: src/main/java/org/apache/sling/models/impl/ModelAdapterFactory.java
##########
@@ -421,11 +443,7 @@ public boolean isModelClass(@NotNull Class<?> type) {
                         result = createObject(adaptable, modelClass);
 
                         if (result.wasSuccessful() && modelAnnotation.cache()) 
{
-                            Map<Class<?>, SoftReference<Object>> 
adaptableCache = adapterCache.get(cacheKey);
-                            if (adaptableCache == null) {
-                                adaptableCache = 
Collections.synchronizedMap(new WeakHashMap<Class<?>, SoftReference<Object>>());
-                                adapterCache.put(cacheKey, adaptableCache);
-                            }
+                            Map<Class<?>, SoftReference<Object>> 
adaptableCache = getOrCreateCache(adaptable);

Review comment:
       Don't we already know here that there was no cache created for this 
`adaptable`? If a cache was available, we would have returned the result 
already - see 
https://github.com/apache/sling-org-apache-sling-models-impl/pull/21/files#diff-0c273224a9fa6e263f4381c5d4b8145aa2c6c89e75e0b62025eea5efa17edec9R401.




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