title: GemFire getRegion() returns null whereas OQL query gives result
body: <p>I am using Pivotal GemFire 9.0.0 with 1 Locator and 1 Server. The Server has a Region called "submissions", like below - </p>
  
  <pre><code>&lt;gfe:replicated-region id="submissionsRegion" name="submissions" 
  statistics="true" template="replicateRegionTemplate"&gt;
  ...
  &lt;/gfe:replicated-region&gt;
  </code></pre>
  
  <p>I am getting Region as null when executing the following code - </p>
  
  <pre><code>Region&lt;K, V&gt; region = clientCache.getRegion("submissions");
  </code></pre>
  
  <p>Surprisingly, the same <code>ClientCache</code> returns all the records when I query using OQL and <code>QueryService</code> as shown below - </p>
  
  <pre><code>String queryString = "SELECT * FROM /submissions";
  QueryService queryService = clientCache.getQueryService();
  Query query = queryService.newQuery(queryString);
  SelectResults results = (SelectResults) query.execute();
  </code></pre>
  
  <p>I am initializing my <code>ClientCache</code> like this - </p>
  
  <pre><code>ClientCache clientCache = new ClientCacheFactory()
              .addPoolLocator("localhost", 10479)
              .set("name", "MyClientCache")
              .set("log-level", "error")
              .create();
  </code></pre>
  
  <p>I am really baffled by this. Any pointer or help would be great.</p>