accessing xml files created during runtime

I'm trying to run a script that creates an xml output file each time it is run and then access that xml file as soon as the script has stopped running. I am using the exec() method to run the script, which works fine. The issue I'm having is that the output files don't appear (in browser) until the execution of java is stopped. I have tried using the Thread.sleep() method in case the script wasn't finishing entirely, but it seems that no matter how long I wait, the xml file is only created when the java program stops execution. Is there any work around for this?

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the output files don't appear (in browser) until the execution of java is stopped.

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Do you close the file after you are finished writing to it?

well the file is created by a different jar that is run through a script from the exec() command. It is created instantly when the script is run from the command line, but when I run it using the exec() command, the file is not created until the java stops running.

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the file is not created until the java stops running.

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Does the java program close the file after it finished writing to it?

I don't have access to the jar file that is run through the script. Everything runs smoothly from the command line, so I assume it closes it, but I don't know.

Sloppy programmers leave it to the java program to close files when the program ends. If the program keeps running for some reason, the file may not be fully written out until the program ends.

I have a waitFor() after the exec(). Would that ensure that the jar stops running? Is there any way to end the program either in the .cmd script or using the Runtime class?

Read the API doc for the Runtime and the Process classes. See if there are any methods that will do what you want.