diff --git a/src/main/java/codes/thischwa/dyndrest/config/PostProcessor.java b/src/main/java/codes/thischwa/dyndrest/config/PostProcessor.java
index 8cae3f3..d33742b 100644
--- a/src/main/java/codes/thischwa/dyndrest/config/PostProcessor.java
+++ b/src/main/java/codes/thischwa/dyndrest/config/PostProcessor.java
@@ -51,25 +51,29 @@ public Object postProcessBeforeInitialization(Object bean, String beanName)
   @Nullable
   @Override
   public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
-    Collection<Class<?>> toBeRemoved = new HashSet<>();
-    for (Class<?> wantedBean : wanted) {
-      if (wantedBean.isInstance(bean) && !initialized.contains(bean)) {
-        initialized.add(bean);
-        toBeRemoved.add(wantedBean);
-      }
-    }
-    wanted.removeAll(toBeRemoved);
+    processBean(bean);
     if (!processed && wanted.isEmpty()) {
-      log.info("*** Relevant beans found!");
+      log.info("*** Wanted beans found!");
       try {
         process(initialized);
       } catch (Exception e) {
         throw new BeanInitializationException(
-            "Error while processing " + this.getClass().getName());
+            "Error while processing " + this.getClass().getName(), e);
       }
       processed = true;
     }
 
     return BeanPostProcessor.super.postProcessAfterInitialization(bean, beanName);
   }
+
+  private void processBean(Object bean) {
+    Collection<Class<?>> toBeRemoved = new HashSet<>();
+    for (Class<?> wantedBean : wanted) {
+      if (wantedBean.isInstance(bean) && !initialized.contains(bean)) {
+        initialized.add(bean);
+        toBeRemoved.add(wantedBean);
+      }
+    }
+    wanted.removeAll(toBeRemoved);
+  }
 }