Skip parens

typetools · Oct 11, 2024 · 6e8ed8e · 6e8ed8e
1 parent b4e97b9
commit 6e8ed8e
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diff --git a/framework/tests/all-systems/Issue6856.java b/framework/tests/all-systems/Issue6856.java
@@ -0,0 +1,7 @@
+import java.util.Collections;
+
+public class Issue6856 {
+  static void test(Class<String> p) {
+    var x = Collections.checkedCollection((Collections.emptyList()), p);
+  }
+}
diff --git a/javacutil/src/main/java/org/checkerframework/javacutil/TreeUtils.java b/javacutil/src/main/java/org/checkerframework/javacutil/TreeUtils.java
@@ -2849,6 +2849,7 @@ public static boolean isPolyExpression(ExpressionTree expression) {
    * @return whether or not {@code expression} is a standalone expression
    */
   public static boolean isStandaloneExpression(ExpressionTree expression) {
+    expression = TreeUtils.withoutParens(expression);
     if (expression instanceof JCTree.JCExpression) {
       if (((JCTree.JCExpression) expression).isStandalone()) {
         return true;