feat: use generated RetryStrategy for retrying requests (box/box-codegen#872)

Author: box-sdk-build

.codegen.json

@@ -1 +1 @@
-{ "engineHash": "c4dd2eb", "specHash": "cf21406", "version": "10.1.0" }
+{ "engineHash": "4421f42", "specHash": "cf21406", "version": "10.1.0" }

src/main/java/com/box/sdkgen/networking/retries/BoxRetryStrategy.java

@@ -36,7 +36,10 @@ public boolean shouldRetry(
       return attemptNumber <= this.maxRetriesOnException;
     }
     boolean isSuccessful = fetchResponse.getStatus() >= 200 && fetchResponse.getStatus() < 400;
-    String retryAfterHeader = fetchResponse.getHeaders().get("Retry-After");
+    String retryAfterHeader =
+        (fetchResponse.getHeaders().containsKey("Retry-After")
+            ? fetchResponse.getHeaders().get("Retry-After")
+            : null);
     boolean isAcceptedWithRetryAfter =
         fetchResponse.getStatus() == 202 && !(retryAfterHeader == null);
     if (attemptNumber >= this.maxAttempts) {