Warn when EVCache initializes an implicit fallback manager

evcache-core/src/main/java/com/netflix/evcache/pool/EVCacheClientPoolManager.java

@@ -39,7 +39,7 @@
  *
  * An EVCache app can also be initialized by Injecting
  * <code>EVCacheClientPoolManager</code> and calling <code>
  *      initEVCache(<app name>)
  *      </code>
  *
  * This typically should be done in the client libraries that need to initialize
@@ -142,7 +142,7 @@
     }
 
     /**
      * @deprecated. Please use DependencyInjection (@Inject) to obtain
      * {@link EVCacheClientPoolManager}. The use of this can result in
      * unintended behavior where you will not be able to talk to evcache
      * instances.
@@ -152,8 +152,9 @@
         if (instance == null) {
             new EVCacheClientPoolManager(new ConnectionFactoryBuilder(), new SimpleNodeListProvider(), EVCacheConfig.getInstance());
             if (!EVCacheConfig.getInstance().getPropertyRepository().get("evcache.use.simple.node.list.provider", Boolean.class).orElse(false).get()) {
-                if(log.isDebugEnabled()) log.debug("Please make sure EVCacheClientPoolManager is injected first. This is not the appropriate way to init EVCacheClientPoolManager."
-                        + " If you are using simple node list provider please set evcache.use.simple.node.list.provider property to true.", new Exception());
+                if(log.isWarnEnabled()) log.warn("Created a fallback EVCacheClientPoolManager because no manager was initialized."
+                        + " Inject EVCache.Builder or pass the injected manager to EVCache.Builder.setPoolManager(...)."
+                        + " If SimpleNodeListProvider is intentional, set evcache.use.simple.node.list.provider=true.", new Exception());
             }
         }
         return instance;
@@ -204,7 +205,7 @@
      * @param _app
      *            - name of the evcache app
      * @return the Pool for the give app.
      * @throws IOException
      */
     public EVCacheClientPool getEVCacheClientPool(String _app) {
         final String app = getAppName(_app);