Java developers

Is it possible to convert a type of an array simple by casting it to another? I mean, if I have
Object[] someArray and want to alter the type of the array, this code NewType[] someArray2 = (NewType[]) someArray throws a ClassCastException. I'm not so sure what is wrong with this approach?

For those who are using jalopy with maven, I have released a patch for the Jalopy plug-in so it will conform to the default checkstyle format when you do maven site at http://jira.codehaus.org/browse/MPJALOPY-3

It takes a while to have patches on the smaller plugins be put in though, but you can use it if you use the CVS version of Maven.