Can a DOS cmd file execution step through sequence without completing a java process?

Programmer Question

Does DOS execute processes in sequence only if the previous step has completed and released all file/process locks?

Suppose I have the following cmd file (mybatchfile.cmd)

echo. |TIME
java myjar.jar
echo. |TIME

and I pipe the results to a log file.

Can I be 100% confident (on windows) that my java process has completed and released all file/process locks when the second echo timestamp has occurred?

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