This property makes it possible to control whether or not multiple invocations
of a given application can be run at the same time. The default value is to
allow multiple invocations. Defaults to FALSE.
If enabled then the Wrapper will look for a named Mutex in memory build by
concatinating "Java Service Wrapper - " and the value of the
wrapper.ntservice.name property.
This means that it is possible to run multiple applications controlled by
the Wrapper, while at the same time making sure that an individual application
is not launched more than once.
This property can be useful in making sure that an application is not launched
as a console application when running as an NT service, or visa-versa.
Example:
wrapper.single_invocation=TRUE
NOTE
Reloading
the Wrapper configuration will have no effect on the value of this property.
Changes will not take effect until the Wrapper has been restarted.