fix (kubernetes-client-api) : Make Config's ExecCredential nested cla…

…sses public (fabric8io#4724)

Expose these nested config classes so that they can be used in
reflection.

Signed-off-by: Rohan Kumar <rohaan@redhat.com>

CHANGELOG.md

@@ -17,6 +17,7 @@
 #### Improvements
 * Fix #3805: DeletionTimestamp and Finalizer support in Mock server.
 * Fix #4644: generate CRDs in parallel and optimize code
+* Fix #4724: Private configuration classes cause trouble with Java native (reflection)
 * Fix #4739: honor optimistic concurrency control semantics in the mock server for `PUT` and `PATCH` requests.
 * Fix #4747: migrate to SnakeYAML Engine
 * Fix #4788: moved retry logic into the standard client so that it applies to all requests, including websockets

kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/Config.java

@@ -858,19 +858,19 @@ private static Context setCurrentContext(String context, Config config, io.fabri
   }
 
   @JsonIgnoreProperties(ignoreUnknown = true)
-  private static final class ExecCredential {
+  public static final class ExecCredential {
     public String kind;
     public String apiVersion;
     public ExecCredentialSpec spec;
     public ExecCredentialStatus status;
   }
 
   @JsonIgnoreProperties(ignoreUnknown = true)
-  private static final class ExecCredentialSpec {
+  public static final class ExecCredentialSpec {
   }
 
   @JsonIgnoreProperties(ignoreUnknown = true)
-  private static final class ExecCredentialStatus {
+  public static final class ExecCredentialStatus {
     public String token;
     // TODO clientCertificateData, clientKeyData, expirationTimestamp
   }