Yesterday I compiled a project on my iBook and deployed the resulting jar files. Today the customer called me and told me that the CSV parser wasn't working anymore. After some research I found out that javac on OS X doesn't use ISO-8859-1 as the default encoding (I guess it uses MacRoman). Acutally the problem is that we have german umlauts in some of our source files. Therefore it is a good idea to specifiy the enconding property in your ant task:

<javac encoding="iso-8859-1" ...
...