Handle Rawtype more gracefully

docs/CHANGELOG.md

@@ -53,7 +53,7 @@ Removed method `InitializationParentAnnotatedTypeFactory.createUnderInitializati
 
 **Closed issues:**
 
-eisop#1247, eisop#1263, eisop#1310, eisop#1326, typetools#7096, eisop#1448, eisop#1543.
+eisop#792, eisop#1247, eisop#1263, eisop#1310, eisop#1326, typetools#7096, eisop#1448, eisop#1543.
 
 
 Version 3.49.5 (June 30, 2025)

framework/src/main/java/org/checkerframework/framework/type/typeannotator/PropagationTypeAnnotator.java

@@ -127,6 +127,16 @@ public Void visitWildcard(AnnotatedWildcardType wildcard, Void aVoid) {
         }
         visitedNodes.put(wildcard, null);
 
+        // Raw wildcard args are already fixed up in visitDeclared.
+        // Recursive traversal through scan(wildcard.getExtendsBound(), ...) can
+        // re-enter visitWildcard with a synthesized raw wildcard object that is
+        // not identity-equal to the parent type argument wildcard.
+        if (AnnotatedTypes.isTypeArgOfRawType(wildcard)) {
+            scan(wildcard.getExtendsBound(), null);
+            scan(wildcard.getSuperBound(), null);
+            return null;
+        }
+
         Element typeParamElement = TypesUtils.wildcardToTypeParam(wildcard.getUnderlyingType());
         if (typeParamElement == null && !parents.isEmpty()) {
             typeParamElement = getTypeParameterElement(wildcard, parents.peekFirst());
@@ -212,7 +222,8 @@ private void applyAnnosFromBound(
      *
      * @param typeArg a typeArg of {@code declaredType}
      * @param declaredType the type in which {@code typeArg} is a type argument
-     * @return the type parameter in {@code declaredType} that corresponds to {@code typeArg}
+     * @return the type parameter in {@code declaredType} that corresponds to {@code typeArg}, or
+     *     null if not found (which can happen with raw types)
      */
     private Element getTypeParameterElement(
             @FindDistinct AnnotatedTypeMirror typeArg, AnnotatedDeclaredType declaredType) {

framework/tests/viewpointtest/RawtypeCrash.java

@@ -0,0 +1,4 @@
+public class RawtypeCrash<V> {
+    RawtypeCrash<? extends V> nullObj = null;
+    Object obj = ((RawtypeCrash) null).nullObj;
+}