From 75c7377e4762b3204f50bfdb66b1d8f6c7a2d1b4 Mon Sep 17 00:00:00 2001
From: Alex Herbert <aherbert@apache.org>
Date: Fri, 20 Aug 2021 21:19:23 +0100
Subject: [PATCH] Only restore interrupted state if necessary

---
 .../math4/examples/sofm/tsp/TravellingSalesmanSolver.java   | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/commons-math-examples/examples-sofm/tsp/src/main/java/org/apache/commons/math4/examples/sofm/tsp/TravellingSalesmanSolver.java b/commons-math-examples/examples-sofm/tsp/src/main/java/org/apache/commons/math4/examples/sofm/tsp/TravellingSalesmanSolver.java
index 478310dfb..d6eb45bfb 100644
--- a/commons-math-examples/examples-sofm/tsp/src/main/java/org/apache/commons/math4/examples/sofm/tsp/TravellingSalesmanSolver.java
+++ b/commons-math-examples/examples-sofm/tsp/src/main/java/org/apache/commons/math4/examples/sofm/tsp/TravellingSalesmanSolver.java
@@ -124,8 +124,10 @@ public final class TravellingSalesmanSolver {
                 f.get();
             }
         } catch (InterruptedException | ExecutionException e) {
-            // Restore interrupted state...
-            Thread.currentThread().interrupt();
+            if (e instanceof InterruptedException) {
+                // Restore interrupted state...
+                Thread.currentThread().interrupt();
+            }
             throw new RuntimeException(e);
         }
         // Terminate all threads.