diff --git a/AlgebraicDataflowArchitectureModel/src/generators/CodeGeneratorFromDataFlowGraph.java b/AlgebraicDataflowArchitectureModel/src/generators/CodeGeneratorFromDataFlowGraph.java
index 96b422f..f8ecbc6 100644
--- a/AlgebraicDataflowArchitectureModel/src/generators/CodeGeneratorFromDataFlowGraph.java
+++ b/AlgebraicDataflowArchitectureModel/src/generators/CodeGeneratorFromDataFlowGraph.java
@@ -679,7 +679,8 @@
 		// Check duplication.
 		String getterName = getterPrefix + getComponentName(resourceNode.getResourceHierarchy(), langSpec);
 		for (MethodDeclaration method: ancestorComponent.getMethods()) {
-			if (method.getName().equals(getterName) && method.getParameters().size() == getterParams.size()) return null;
+			if (method.getName().equals(getterName) 
+					&& (method.getParameters() == null ? 0 : method.getParameters().size()) == getterParams.size()) return null;
 		}
 		
 		// Declare the getter method of the resource state.