fix per reviews

Author: jaeopt

android-sdk/src/main/java/com/optimizely/ab/android/sdk/cmab/DefaultCmabClient.kt

@@ -135,7 +135,7 @@ open class DefaultCmabClient : CmabClient {
 
         // the numerical base for the exponential backoff (1 second)
         const val REQUEST_BACKOFF_TIMEOUT = 1
-        // retry twice = 3 total attempts
-        const val REQUEST_RETRIES_POWER = 2
+        // retry once = 2 total attempts
+        const val REQUEST_RETRIES_POWER = 1
     }
 }

shared/src/main/java/com/optimizely/ab/android/shared/Client.java

@@ -171,14 +171,14 @@ public <T> T execute(Request<T> request, int timeout, int power) {
                 // don't sleep if this was the last attempt
                 if (attempts >= maxAttempts) break;
 
+                timeout = (int) Math.pow(baseTimeout, attempts);
                 try {
                     logger.info("Request failed, waiting {} seconds to try again", timeout);
                     Thread.sleep(TimeUnit.MILLISECONDS.convert(timeout, TimeUnit.SECONDS));
                 } catch (InterruptedException e) {
                     logger.warn("Exponential backoff failed", e);
                     break;
                 }
-                timeout = timeout * baseTimeout;
             } else {
                 break;
             }