Java: Error opening temporary file, runtime execution

[Aaron R. Smith]

Hi Receiving the error: Error opening temporary file.
When I attempt to execute a .com passing a parameter, with the syntax:

Runtime rt= Runtime.getRuntime();
Process p = rt.exec("sys$command:comJob parameter.LIS");

Do I need to set my permissions to an admin account? If so what is the syntax to do so?
Any help would greatly appreciated.

Thank you,

[Aaron R. Smith]

sorry about that, the spacing messed up on the post:


Runtime rt= Runtime.getRuntime();
Process p = rt.exec("sys$command:comJob parameter.LIS");

[John Gillings]

Aaron,

Are you sure "SYS$COMMAND:comJob" is the correct filespec? Usually SYS$COMMAND points to the terminal. Maybe it should be "SYS$LOGIN:comJob"?

[Aaron R. Smith]

Yeah I'm sure.. Sorry for the confusion I changed the first part for security reasons....

you can consider it blah$command

and yes I know that it works, when I execute
the line

$ @blah$command:comJob parameter.LIS

It works just fine, this is why I believe that it could be some type of permission issue. Some additional information:

The .COM job reads a file that the java file produces.

Thank you in advance for the help.

[Aaron R. Smith]

@blah$command:com Job parameter.LIS

[John Gillings]

Aaron,

OK, so what's the EXACT and COMPLETE error message you're seeing? Is it from rt.exec, or from within the procedure itself?

I'm not sure I understand the reference to "temporary file". Is the filename you're passing somehow classed as "temporary"? To diagnose, try replacing your procedure with one that does:

$ DIRECTORY/FULL 'p1'
$ SHOW DEVICE/FILE 'p1'
$ TYPE 'p1'

(ie: make sure the procedure can see the file, and make sure it's not opened by someone else).

If you have trouble capturing the output from inside Java, try changing the command to:

Process p = rt.exec("blah$command:comJob/OUT=test.out parameter.LIS");

[Aaron R. Smith]

I am receiving the error from the VMS side via reading the process' InputStream.
Here is the exact last two lines from the stream:

%DCL-I-SUPERSEDE, previous value of RECON_DETAIL_COMMAND_FILE has been superseded
Error opening temporary file.

However, when I run the job passing the parameter interactively via:

@blah$command:comJOB paraFile.LIS

The job executes and completes successfully.
In an attempt to clear up everything:

paraFile.LIS is created by java app.
java app. kicks-off comJob
comJob reads the paraFile.LIS

I have closed the BufferedWriter. It does not have an exclusive lock on the file. So this is not an issue (out.close()).

[Brian Reiter]

Does the location of the temporary file exist when the command procedure is run from Java? If it does exist does the java process have access to it?

Just wondering if a logical is missing somewhere.

[Aaron R. Smith]

The funny thing is, that the file is not temporary. That is just what the error is saying. The java app. creates the .LIS file.

[John Gillings]

Aaron,
Any results from replacing your real procedure with a diagnostic one?