diff --git a/obp-api/src/main/scala/code/api/util/APIUtil.scala b/obp-api/src/main/scala/code/api/util/APIUtil.scala
index e529e18cff..5a7cf58367 100644
--- a/obp-api/src/main/scala/code/api/util/APIUtil.scala
+++ b/obp-api/src/main/scala/code/api/util/APIUtil.scala
@@ -4191,11 +4191,14 @@ object APIUtil extends MdcLoggable with CustomJsonFormats{
   }
 
   /**
+   * NOTE: MEMORY_USER this ctClass will be cached in ClassPool, it may load too many classes into heap. 
    * according class name, method name and method's signature to get all dependent methods
    */
   def getDependentMethods(className: String, methodName:String, signature: String): List[(String, String, String)] = {
     val methods = ListBuffer[(String, String, String)]()
-    val method = cp.get(className).getMethod(methodName, signature)
+    //NOTE: MEMORY_USER this ctClass will be cached in ClassPool, it may load too many classes into heap. 
+    val ctClass = cp.get(className)
+    val method = ctClass.getMethod(methodName, signature)
     method.instrument(new ExprEditor() {
       @throws[CannotCompileException]
       override def edit(m: MethodCall): Unit = {
@@ -4207,6 +4210,7 @@ object APIUtil extends MdcLoggable with CustomJsonFormats{
   }
 
   /**
+   * NOTE: MEMORY_USER this ctClass will be cached in ClassPool, it may load too many classes into heap. 
    * get all dependent connector method names for an object
    * @param endpoint can be OBPEndpoint or other PartialFunction
    * @return a list of connector method name
@@ -4233,10 +4237,12 @@ object APIUtil extends MdcLoggable with CustomJsonFormats{
         }.flatten.distinct
       }
 
-
+    //NOTE: MEMORY_USER this ctClass will be cached in ClassPool, it may load too many classes into heap. 
+    val ctClass = classPool.get(endpointClassName)
+    
     // list of connector method name
     val connectorMethods: Array[String] = for {
-      method <- classPool.get(endpointClassName).getDeclaredMethods
+      method <- ctClass.getDeclaredMethods
       (clazzName, methodName, _) <- getObpTrace(endpointClassName, method.getName, method.getSignature)
       if clazzName == connectorTypeName && !methodName.contains("$default$")
     } yield methodName
diff --git a/obp-api/src/main/scala/code/api/util/DynamicUtil.scala b/obp-api/src/main/scala/code/api/util/DynamicUtil.scala
index 96a1a6ed6a..6ee1c6aa55 100644
--- a/obp-api/src/main/scala/code/api/util/DynamicUtil.scala
+++ b/obp-api/src/main/scala/code/api/util/DynamicUtil.scala
@@ -145,11 +145,20 @@ object DynamicUtil extends MdcLoggable{
     }
   }
 
+  /**
+   * NOTE: MEMORY_USER this ctClass will be cached in ClassPool, it may load too many classes into heap. 
+   * @param clazz
+   * @param predicate
+   * @return
+   */
   def getDynamicCodeDependentMethods(clazz: Class[_], predicate:  String => Boolean = _ => true): List[(String, String, String)] = {
     val className = clazz.getTypeName
     val listBuffer = new ListBuffer[(String, String, String)]()
+    val classPool = getClassPool(clazz.getClassLoader)
+    //NOTE: MEMORY_USER this ctClass will be cached in ClassPool, it may load too many classes into heap. 
+    val ctClass = classPool.get(className)
     for {
-      method <- getClassPool(clazz.getClassLoader).get(className).getDeclaredMethods.toList
+      method <- ctClass.getDeclaredMethods.toList
       if predicate(method.getName)
       ternary @ (typeName, methodName, signature) <- APIUtil.getDependentMethods(className, method.getName, method.getSignature)
     } yield {
diff --git a/obp-api/src/main/scala/code/bankconnectors/ConnectorBuilderUtil.scala b/obp-api/src/main/scala/code/bankconnectors/ConnectorBuilderUtil.scala
index 81a99b53c9..bdce90a3fb 100644
--- a/obp-api/src/main/scala/code/bankconnectors/ConnectorBuilderUtil.scala
+++ b/obp-api/src/main/scala/code/bankconnectors/ConnectorBuilderUtil.scala
@@ -23,10 +23,12 @@ object ConnectorBuilderUtil {
   {
     import javassist.ClassPool
     val pool = ClassPool.getDefault
-    val ct = pool.getCtClass("code.webuiprops.MappedWebUiPropsProvider$")
-    val m = ct.getDeclaredMethod("getWebUiPropsValue")
+    //NOTE: MEMORY_USER this ctClass will be cached in ClassPool, it may load too many classes into heap. 
+    val ctClass = pool.getCtClass("code.webuiprops.MappedWebUiPropsProvider$")
+    val m = ctClass.getDeclaredMethod("getWebUiPropsValue")
     m.insertBefore("""return ""; """)
-    ct.toClass
+    ctClass.toClass
+    // if(ctClass != null) ctClass.detach()
   }
 
   private val mirror: ru.Mirror = ru.runtimeMirror(getClass().getClassLoader)