Suggested workaround: new map, not clear

jonnybot0 · jonnybot0 · commit d3a490509b63 · 2025-07-21T15:57:19.000-05:00
diff --git a/src/main/java/org/codehaus/groovy/control/ResolveVisitor.java b/src/main/java/org/codehaus/groovy/control/ResolveVisitor.java
@@ -1279,7 +1279,7 @@ public void visitClass(final ClassNode node) {
             if (!Modifier.isStatic(node.getModifiers()))
                 genericParameterNames.putAll(outerNames); // outer names visible
         } else {
-            genericParameterNames.clear(); // outer class: new generic namespace
+            genericParameterNames = new HashMap<>(); // outer class: new generic namespace
         }
         resolveGenericsHeader(node.getGenericsTypes());
         switch (phase) { // GROOVY-9866, GROOVY-10466

Original file line number	Diff line number	Diff line change
`@@ -1279,7 +1279,7 @@ public void visitClass(final ClassNode node) {`
`1279`	`1279`	`if (!Modifier.isStatic(node.getModifiers()))`
`1280`	`1280`	`genericParameterNames.putAll(outerNames); // outer names visible`
`1281`	`1281`	`} else {`
`1282`		`- genericParameterNames.clear(); // outer class: new generic namespace`
	`1282`	`+ genericParameterNames = new HashMap<>(); // outer class: new generic namespace`
`1283`	`1283`	`}`
`1284`	`1284`	`resolveGenericsHeader(node.getGenericsTypes());`
`1285`	`1285`	`switch (phase) { // GROOVY-9866, GROOVY-10466`