Not compiling :(

I am not able to compile given code
```java
Pattern helloPattern = Pattern.compile("(h|H)(e|E)(l|L){2}(o|O)");
Matcher helloMatcher = helloPattern.matcher(messageCut[0]);
```
<code>messageCut</code> isn't known.

files listed in my project : 
```
HelloHandler
HelloMessage
muxDemuxSimple
PeerTable
SimpleMessageHandler
```