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+2 −0 CHANGELOG.md

+1 −0 ...es-client/src/main/java/io/fabric8/kubernetes/client/utils/BackwardsCompatibilityInterceptor.java
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 #### 4.1.1
   Bugs
+
+    * Fix #1239: Fix one case of OkHttp connection leaks
 
   Improvements
 

diff --git a/...t/src/main/java/io/fabric8/kubernetes/client/utils/BackwardsCompatibilityInterceptor.java b/...t/src/main/java/io/fabric8/kubernetes/client/utils/BackwardsCompatibilityInterceptor.java
@@ -123,6 +123,7 @@ public Response intercept(Chain chain) throws IOException {
       ResourceKey key = getKey(matcher);
       ResourceKey target = responseCodeToTransformations.get(response.code()).get(key);
       if (target != null) {
+        response.close(); // At this point, we know we won't reuse or return the response; so close it to avoid a connection leak.
         String newUrl = new StringBuilder(url)
             .replace(matcher.start(API_VERSION), matcher.end(API_VERSION), target.version) // Order matters: We need to substitute right to left, so that former substitution don't affect the indexes of later.
             .replace(matcher.start(API_GROUP), matcher.end(API_GROUP), target.group)