javax.mail pom can not be parsed.

The pom for the javax.mail jar contains compiler arguments which cause problems.

```
<compilerArguments>
            <Xlint:all/>
            <Xlint:-rawtypes/>
            <Xlint:-unchecked/>
            <Xlint:-finally/>
 </compilerArguments>
```

This triggers a `org.xml.sax.SAXParseException` during the build.

I have a fix and will submit a pull request shortly.
