JV is an abbreviation for Java viruses.
JV was an abbreviation previously used by F-Secure Anti-Virus when detecting Java viruses. The naming scheme has been updated. F-Secure Anti-Virus now detects these with the name "Java". Please see the Java description for more information.
Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.
More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.
You may also refer to the Knowledge Base on the F-Secure Community site for more information.
JV/Ungrateful in ComSourceException.class is a false alarm from McAfee/ Network Associates scanner. For more information, contact Network Associates.