[exec] Executed command can't open file argument

[Mark Trolley]

(Sorry if this message appears twice. I sent it once before subscribing and
haven't seen it appear in the archives so I assume it wasn't accepted.)

I’m trying to use Apache Commons Exec to run the AtomicParsley tagging
program, but execution fails with an error that the input file doesn’t
exist. If I dump the command line arguments then manually execute
AtomicParsley with the exact same arguments it succeeds. I know the file at
the given path is readable because I tested reading it directly in my Java
code and it succeeds. The error that the file doesn’t exist only happens
when I use Commons Exec.

Here is a snippet of my code:

CommandLine cmdLine = new CommandLine("AtomicParsley");
cmdLine.addArgument("${file}");
cmdLine.addArgument("--overWrite");
cmdLine.addArgument("--artwork");
cmdLine.addArgument("REMOVE_ALL");
Map<String, String> map = new HashMap<String, String>();
map.put("file”, path.toFile().getAbsolutePath());
cmdLine.setSubstitutionMap(map);
ExecuteWatchdog watchdog = new ExecuteWatchdog(60 * 1000);
Executor executor = new DefaultExecutor();
executor.setExitValue(0);
executor.setWatchdog(watchdog);
try {
    executor.execute(cmdLine);
} catch (IOException ioe) {
    System.err.println("Error removing artwork");
    ioe.printStackTrace();
}

If I use a script to dump out the arguments I see they are correct:

"/Users/mtrolley/testing_mp4/Futurama - S05E01.mp4"
--overWrite
--artwork
REMOVE_ALL

If I use those arguments to manually run AtomicParsley it works:

$ AtomicParsley "/Users/mtrolley/testing_mp4/Futurama - S05E01.mp4”
--overWrite --artwork REMOVE_ALL
No changes.
$

When I run the same command using exec:
AtomicParsley error: can't open "/Users/mtrolley/testing_mp4/Futurama -
S05E01.mp4" for reading: No such file or directory

Thanks in advance for any help.