Concurrently logging into the same file from 2 VMs

If two processes running in the same machine.
There is only one file name specified in logging.properties, e.g., test.log.
VM 1 is logging into file test.log while VM 2 does the same thing to the same file.
Based on the javadoc of FileHandler, the second vm will create another file
like test.0.log to logging its data.
Is that true?
If true, then, when VM1 stops logging, VM2 starts logging again. Will the new logging messages from VM2 go to test.log?
Thanks in advance.

I have tested it out.
When two applications in two processes logging to the same disk file (e.g. test.log) specified by the logging.properties at the same time, the two processes actually log to two different files: test.log.0 and test.log.1.
When two applicatoins in two processes logging to the same disk file specified by the logging.properties as test.log at different time, e.g., the first process exits, then the second process executes, there are still two different files
created for each process: test.log.0 and test.log.1.

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