8305672: Surprising definite assignment error after JDK-8043179

src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Flow.java

@@ -2859,6 +2859,7 @@ public void visitNewClass(JCNewClass tree) {
         @Override
         public void visitLambda(JCLambda tree) {
             final Bits prevUninits = new Bits(uninits);
+            final Bits prevUninitsTry = new Bits(uninitsTry);
             final Bits prevInits = new Bits(inits);
             int returnadrPrev = returnadr;
             int nextadrPrev = nextadr;
@@ -2886,6 +2887,7 @@ public void visitLambda(JCLambda tree) {
             finally {
                 returnadr = returnadrPrev;
                 uninits.assign(prevUninits);
+                uninitsTry.assign(prevUninitsTry);
                 inits.assign(prevInits);
                 pendingExits = prevPending;
                 nextadr = nextadrPrev;

test/langtools/tools/javac/lambda/TryWithLambdaFinal.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8305672
+ * @summary DA/DU tracking gets confused by lambda/try combination
+ * @compile TryWithLambdaFinal.java
+ */
+class TryWithLambdaFinal {
+
+    private final int x;
+
+    public TryWithLambdaFinal() {
+        try {
+            Runnable r = () -> {
+                try {
+                    return;
+                } catch (Exception e) {
+                    throw new AssertionError(e);
+                }
+            };
+        } catch (Exception e) {
+        }
+        x = 42;     // this should be allowed
+    }
+}