[Wrapper-user] Wrapper causes zombie procecesses started from Runtime.getRuntime( exec ( cmd ) );

[Ted H. <thu...@ro...>]

We have been using the Java Service Wrapper successfully for the past year
with JBoss 3.2.1.   It has worked flawlessly. However we just added a new
application feature using the Java Runtime class to spawn a VB script in the
operating system environment  (Windows Script Host environment or
'cscript').  The VB script starts an instance of Excel, inserts some values,
does some processing, then emails the spreadsheet.  Excel is instructed to
exit at the final line of the VB script.  The VB script works fine in
standalone mode.   It also works correctly when JBoss is run without the
Java Service Wrapper.  

 

However, when JBoss is wrapped, Excel never exits.  Repeated executions
cause multiple, zombie versions of Excel to hang around, consuming memory &
resources.  It is not always possible to kill these zombies Excel's from the
Windows Task Manager.   A reboot is often required.  (This is Windows 2000
Server).   

 

It seems that the Java Service Wrapper interferes with one or more of the
following:

1)       the java Runtime class

2)       the Windows Script Host Environment (cscript) or

3)       Excel

 

Recommendations or suggested gladly welcome!  Thank you.

 

 

My JSP code looks like this:

StringBuffer cmd;

cmd.append( "cscript C:\\src\\excel.vbs  fo...@ba..." );

Runtime.getRuntime( exec( cmd.toString() ) );

 

 

My VB script (excel.vbs) looks like this:

Set objExcel = CreateObject( "Excel.Application" )

objExcel.DisplayAlerts = False

objExcel.Visible = False

Set wb = objExcel.Workbooks.Open( "C:\src\template.xls" )

.

Set address = WScript.Arguments(0)

wb.SendMail address, "title", False

wb.Close False

objExcel.Quit

WScript.Quit

 

 

I am using wrapper_win32_3.0.5

 

 

 

 

--

Ted Hudacko

thu...@ro...