DO NOT REPLY [Bug 34851] New: - [commons-daemon]: jsvc should instantiate server only once

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http://issues.apache.org/bugzilla/show_bug.cgi?id=34851

           Summary: [commons-daemon]: jsvc should instantiate server only
                    once
           Product: Commons
           Version: 1.0 Final
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P2
         Component: Daemon
        AssignedTo: commons-dev@jakarta.apache.org
        ReportedBy: bht@actrix.gen.nz


Configuration:

Red Hat Linux 9
j2sdk-1_4_2_07
jsvc 1.0


Expected behavior:

jsvc should call the constructor of the java class implementing the Daemon
interface only once.

Actual behavior:

jsvc calls the constructor 2 times.


Notes:

It may well be justifiable to instantiate the class more than once from the jsvc
programmer's point of view.

However this is in conflict with the requirements of a Java demon/service.

The double successive instantiation of the same Java server can create severe
resource problems.

There is no guarantee that these problems are not created because there is no
convention that documents this double instantiation.

Apart from possible resource contention issues, there is a more undisputable
obvious problem:

Performance.

The instantiation of a server is typically a time consuming process.

The server startup time has to be kept at a minimum to minimise service
disruptions due to re-starts.

In this context it is extremely hard to accept if not unaceptable that this task
is performed more than once.

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