src/share/classes/com/sun/tools/javac/jvm/Gen.java

@@ -1454,11 +1454,11 @@
                       Env<GenContext> env,
                       int startpc, int endpc,
                       List<Integer> gaps) {
             if (startpc != endpc) {
                 List<JCExpression> subClauses = TreeInfo.isMultiCatch(tree) ?
-                        ((JCTypeDisjunction)tree.param.vartype).alternatives :
+                        ((JCTypeUnion)tree.param.vartype).alternatives :
                         List.of(tree.param.vartype);
                 while (gaps.nonEmpty()) {
                     for (JCExpression subCatch : subClauses) {
                         int catchType = makeRef(tree.pos(), subCatch.type);
                         int end = gaps.head.intValue();