diff --git a/src/main/java/gr/uom/java/xmi/decomposition/OperationInvocation.java b/src/main/java/gr/uom/java/xmi/decomposition/OperationInvocation.java
index 2ddcd26941..56d4981d8e 100644
--- a/src/main/java/gr/uom/java/xmi/decomposition/OperationInvocation.java
+++ b/src/main/java/gr/uom/java/xmi/decomposition/OperationInvocation.java
@@ -306,10 +306,6 @@ else if(arg.charAt(i) == '\n' || arg.charAt(i) == '{') {
     			}
     			inferredArgumentTypes.add(UMLType.extractTypeObject(type));
     		}
-    		else if(arg.endsWith(".INSTANCE") || arg.endsWith(".instance()") || arg.endsWith(".getInstance()")) {
-    			String type = arg.substring(0, arg.lastIndexOf("."));
-    			inferredArgumentTypes.add(UMLType.extractTypeObject(type));
-    		}
     		else if(indexOfOpeningParenthesis == 0 && arg.contains(")") && !arg.contains(JAVA.LAMBDA_ARROW) && !arg.contains(JAVA.METHOD_REFERENCE) && arg.indexOf(")") < arg.length()) {
     			String cast = arg.substring(indexOfOpeningParenthesis + 1, arg.indexOf(")"));
     			if(cast.charAt(0) != '(') {