Name: js151677 Date: 06/30/2004


A DESCRIPTION OF THE REQUEST :
Process launched from Runtime.exec() unnecessarily inherits open files in Windows 2000 with java 1.4.2.

Look at bug entries:
4153564 , 4200502 , 4228651 , 4744948



JUSTIFICATION :
Process launched from Runtime.exec() unnecessarily inherits open files in Windows 2000.

This is especially nasty feature with sockets. I'm currenlty trying to achieve following:
 - Java application receives a SOAP request with HTTP 1.0
 - Java application passes the request to JCA adapter, which starts a native program with Runtime.exec(..). (Only when needed)
 - Java application receives the response from native program
 - Java application sends the response to SOAP client and closes the socket. But because the native program
   is still around and has inherited the socket - the socket is still open and the SOAP client does not get
   the socket close event - and doesn't receive the data.

Look at entries:
4153564 , 4200502 , 4228651 , 4744948

In these cases the bug was closed with explanation:

"It appears that we've called CreateProcess with a value
of "TRUE" for inheritance of system handles since at least jdk1.1.8."

I'd like to say: You have has a bug since jdk1.1.8 - and got it reported - and done nothing.

I don't believe anyone is counting on inherited sockets/files. And if I've understood correctly, the open sockets
are not inherited in Unix. Shouldn't these work in a same way in both cases? I think the correct way should be to start the process with createProcess but set the file descriptor inheritance flag off.



EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
By default don't inherit sockets. If this is needed then add this as an option to new ProcessBuilder class in java 1.5.
(Incident Review ID: 281895)
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