Just because I want to double check, is there need for `toArray`?  I probably 
would have used for each with the list unless there's a significant performance 
bonus

```java
List<VM> allVMs = getAllVMs();
allVMs.add(getController());
for (VM vm : allVMs) {
    ...
}
```

[ Full content available at: https://github.com/apache/geode/pull/3177 ]
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