Added Exception in the ClientHttpResponse

Author: ssayyaparaj

src/main/java/com/intuit/springwebclient/client/CommonSpringWebClient.java

@@ -196,6 +196,6 @@ private <REQUEST, RESPONSE> ClientHttpResponse<RESPONSE> handleExceptionInternal
     httpRequest.getRetryHandlers()
         .forEach(handlerId -> RetryHandlerFactory.getHandler(handlerId.toString())
             .checkAndThrowRetriableException(exception));
-    return ClientHttpResponse.<RESPONSE>builder().error(responseBody).status(httpStatus).build();
+    return ClientHttpResponse.<RESPONSE>builder().error(responseBody).exception(exception).status(httpStatus).build();
   }
 }

src/main/java/com/intuit/springwebclient/entity/ClientHttpResponse.java

@@ -10,6 +10,7 @@ public final class ClientHttpResponse<T>{
 
     private final T response;
     private final String error;
+    private final Exception exception;
     private final HttpStatusCode status;
     private final boolean isSuccess2xx;