Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: brunoborges

java/src/main/java/com/github/copilot/CopilotClient.java

@@ -926,8 +926,21 @@ public void close() {
     }
 
     private void shutdownOwnedExecutor() {
-        if (ownedExecutor != null) {
-            ownedExecutor.shutdown();
+        if (ownedExecutor == null) {
+            return;
+        }
+
+        ownedExecutor.shutdown();
+        try {
+            if (!ownedExecutor.awaitTermination(AUTOCLOSEABLE_TIMEOUT_SECONDS, TimeUnit.SECONDS)) {
+                LOG.log(Level.FINE, "Owned executor did not terminate within {0} seconds; forcing shutdown.",
+                        AUTOCLOSEABLE_TIMEOUT_SECONDS);
+                ownedExecutor.shutdownNow();
+            }
+        } catch (InterruptedException e) {
+            ownedExecutor.shutdownNow();
+            Thread.currentThread().interrupt();
+            LOG.log(Level.FINE, "Interrupted while waiting for owned executor to terminate", e);
         }
     }