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Asked: 2026-05-11T11:34:17+00:00

In my Java application, I want to run a batch file that calls scons

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In my Java application, I want to run a batch file that calls ‘scons -Q implicit-deps-changed build\file_load_type export\file_load_type‘

It seems that I can’t even get my batch file to execute. I’m out of ideas.

This is what I have in Java:

Runtime.    getRuntime().    exec('build.bat', null, new File('.'));

Previously, I had a Python Sconscript file that I wanted to run but since that didn’t work I decided I would call the script via a batch file but that method has not been successful as of yet.

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1 Answer

  1. Batch files are not an executable. They need an application to run them (i.e. cmd).

    On UNIX, the script file has shebang (#!) at the start of a file to specify the program that executes it. Double-clicking in Windows is performed by Windows Explorer. CreateProcess does not know anything about that.

    Runtime.    getRuntime().    exec('cmd /c start \'\' build.bat');

    Note: With the start \'\' command, a separate command window will be opened with a blank title and any output from the batch file will be displayed there. It should also work with just `cmd /c build.bat’, in which case the output can be read from the sub-process in Java if desired.

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