BEFORE EDIT 1:

                try {   
                    SFVFile sfv;
                                        try {   
                                                sfv = conn.getCurrentDirectory().lookupSFVFile();
                                        } catch (FileStillTransferringException e) {
                                                // I have no idea how to handle this
                                                return new Reply(400, "SFVFile still transferring.");
                                        }       
                    if (checkName.endsWith(".sfv") && 

AFTER EDIT 1:

                try {   
                    SFVFile sfv;
                                  //      try {   
                                                sfv = conn.getCurrentDirectory().lookupSFVFile();
                                  //      } catch (FileStillTransferringException e) {
                                                // I have no idea how to handle this
                                   //             return new Reply(400, "SFVFile still transferring.");
                                    //    }       
                    if (checkName.endsWith(".sfv") && 

BEFORE EDIT 2:

                                    "WARNING: checksum from transfer didn't match checksum in .sfv");
                            }
                                        } catch (FileStillTransferringException e) {
                                                response
                                                                .addComment("checksum from sfv doesn't exist yet, SFVFile is being uploaded");
                                        }
                } catch (NoAvailableSlaveException e1) {

AFTER EDIT 2:

                                    "WARNING: checksum from transfer didn't match checksum in .sfv");
                            }
                                //        } catch (FileStillTransferringException e) {
                                //                response
                                //                                .addComment("checksum from sfv doesn't exist yet, SFVFile is being uploaded");
                                //        }
                } catch (NoAvailableSlaveException e1) {

BEFORE EDIT 3:
                               // badtargetFilename);
                            }
                                        } catch (FileStillTransferringException e) {
                                                response.addComment("No sfv to compare to (SFVTransferring), file allowed");
                                        }
                } catch (NoAvailableSlaveException e) {

AFTER EDIT 3:

                               // badtargetFilename);
                            }
                             //           } catch (FileStillTransferringException e) {
                             //                   response.addComment("No sfv to compare to (SFVTransferring), file allowed");
                             //           }
                } catch (NoAvailableSlaveException e) {