In addition to the ability to customize the formatter, as indicated by Thorbjørn, it is also possible to import coding conventions from specific projects, especially the ones from frameworks and libraries that you are working on.
For instance, the Spring framework coding conventions have been made available, as is the case with Android. Eventually, you're better off starting with the Sun coding conventions (than a completely hand-crafted one), with a few tweaks done to suit your organization's coding style and readability requirements.