| Options | Description |
| none | Give no warnings. |
| unchecked | Give details on unchecked conversions of types. |
| path | Check for a nonexistent path in environment paths (such as classpath). |
| serial | Check that a serialVersionUID is given in serializable classes. |
| finally | Check that finally classes can be completed normally. |
| fallthrough | Make sure you break after each case statement that would otherwise fall through to the next case statement in a switch. |
| depreciation | Check for use of depreciated items. |