ST6RI-923 Problem with name resolution when using Semantic metadata

org.omg.kerml.xpect.tests/src/org/omg/kerml/xpect/tests/parsing/ParsingTests_SemanticMetadata.kerml.xt

@@ -0,0 +1,52 @@
+//* XPECT_SETUP org.omg.kerml.xpect.tests.parsing.KerMLParsingTest
+	ResourceSet {
+        ThisFile {}
+		File {from ="/library/Base.kerml"}
+		File {from ="/library/Links.kerml"}
+       	File {from ="/library/Occurrences.kerml"}
+       	File {from ="/library/Objects.kerml"}
+       	File {from ="/library/Performances.kerml"}
+      	File {from ="/library/Metaobjects.kerml"}
+        File {from ="/library/KerML.kerml"}
+        File {from ="/library/BaseFunctions.kerml"}
+    }
+    Workspace {
+        JavaProject {
+            SrcFolder {
+		        ThisFile {}
+				File {from ="/library/Base.kerml"}
+				File {from ="/library/Links.kerml"}
+		       	File {from ="/library/Occurrences.kerml"}
+		       	File {from ="/library/Objects.kerml"}
+		       	File {from ="/library/Performances.kerml"}
+		      	File {from ="/library/Metaobjects.kerml"}
+		        File {from ="/library/KerML.kerml"}
+                File {from ="/library/BaseFunctions.kerml"}
+            }
+    	}
+	}
+END_SETUP
+*/
+
+// XPECT noErrors ---> ""
+package SemanticMetadataTest {
+    private import Metaobjects::SemanticMetadata;
+
+    classifier P {
+        feature a;
+    }
+    feature p : P;
+
+    metaclass M :> SemanticMetadata {
+        :>> baseType = p meta KerML::Feature;
+    }
+
+    classifier Q {
+        feature a = 1;
+        #M feature p1 {
+        	// This feature should redefine P::a, not Q::a.
+        	// Redefining Q::a will causes a feature value override error.
+            feature :>> a = 2;
+        }
+    }
+}

org.omg.sysml/src/org/omg/sysml/adapter/TypeAdapter.java

@@ -1,6 +1,6 @@
 /*******************************************************************************
  * SysML 2 Pilot Implementation
- * Copyright (c) 2021-2025 Model Driven Solutions, Inc.
+ * Copyright (c) 2021-2026 Model Driven Solutions, Inc.
  *    
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Lesser General Public License as published by
@@ -436,23 +436,25 @@ public Type getLibraryType(String... defaultNames) {
 	protected List<Type> getBaseTypes() {
 		List<Type> baseTypes = new ArrayList<>();
 		if (isGetBaseTypes) {
-			isGetBaseTypes = false;
 			Type target = getTarget();
 			for (MetadataFeature metadataFeature : ElementUtil.getAllMetadataFeaturesOf(target)) {
+				// Resolve metaclass proxy before getting base type, to avoid problems
+				// with name resolution when applying semantic metadata.
+				metadataFeature.getMetaclass();
+				isGetBaseTypes = false;
 				metadataFeature.getFeature().stream().
 						filter(f->TypeUtil.specializes(f, getBaseTypeFeature(metadataFeature))).
 						map(FeatureUtil::getValueExpressionFor).
 						filter(expr->expr != null).
-						map(expr->
-						expr.evaluate(metadataFeature)).
+						map(expr->expr.evaluate(metadataFeature)).
 						filter(results->results != null && !results.isEmpty()).
 						map(results->results.get(0)).
 						map(EvaluationUtil::getMetaclassReferenceOf).
 						filter(Type.class::isInstance).
 						map(Type.class::cast).
 						forEachOrdered(baseTypes::add);
+				isGetBaseTypes = true;
 			}
-			isGetBaseTypes = true;
 		}
 		return baseTypes;
 	}