fix: Kube API Test startup fails on readiness SSL check (6987)

fix: Kuber API Test startup fails on readyness SSL check

In rare curcumstaces this it might occur that the readiness problem communcation
fails on SSL error.

Signed-off-by: Attila Mészáros <[email protected]>
---
changelog

Signed-off-by: Attila Mészáros <[email protected]>

Author: csviri

CHANGELOG.md

@@ -11,6 +11,7 @@
 * Fix #6930: Add support for Boolean enums in the java-generator
 * Fix #6941: HasMetadata.getApiVersion no slash when empty group
 * Fix #6829: Mixed-case enums are properly supported by the java-generator
+* FIX #6987: Kube API Test startup fails on readiness SSL check
 
 #### Improvements
 * Fix #6863: ensuring SerialExecutor does not throw RejectedExecutionException to prevent unnecessary error logs

junit/kube-api-test/core/src/main/java/io/fabric8/kubeapitest/process/ProcessReadinessChecker.java

@@ -41,6 +41,7 @@
 
 import javax.net.ssl.SSLContext;
 import javax.net.ssl.SSLEngine;
+import javax.net.ssl.SSLException;
 import javax.net.ssl.TrustManager;
 import javax.net.ssl.X509ExtendedTrustManager;
 
@@ -123,7 +124,10 @@ private boolean ready(HttpClient client, HttpRequest request, String processName
           response.statusCode(), processName,
           port);
       return response.statusCode() == 200;
-    } catch (ConnectException e) {
+      // It has been reported that in rare circumstances this call might
+      // result in a javax.net.ssl.SSLException: Unrecognized SSL message
+      // in that case we still want to retry, assuming this error goes away.
+    } catch (ConnectException | SSLException e) {
       // still want to retry
       log.debug("Cannot connect to the server", e);
       return false;