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I've just migrated a Java program that does image conversion using ImageMagick's "mogrify" and "convert" from Windows to Linux (Slackware 9.1) and I've come across a problem I'm not sure how to solve. I'm not that experienced with Linux but I figured someone here probably has a quick fix to this problem or can steer me in the right direction.
My Java program, see below, calls mogrify and convert, upon an image being uploaded from a web page. When running my Java program in Linux the image file I target does not get resized. It appears as though it gets touched because the timestamp changes but the file doesn't change in size as expected.
When I run the same command the Java program calls from the Linux shell, mogrify and convert work as expected.
What am I doing incorrectly when calling mogrify or convert from Java within Linux? I've tried changing the file permissions where the image is uploaded but that didn't help.
Here's the system output created upon running the Java program. The "ERROR>" and "OUTPUT>" lines are created by Runtime process error and input streams collected upon calling mogrify and convert.