Can the operating system's command line length limit be changed?

Yes, but it's generally not recommended. On Windows, you can modify the `LongPathsEnabled` registry key. On Linux/macOS, you might be able to adjust the `ARG_MAX` limit, but this requires root privileges and can have system-wide implications. Changing these limits can introduce instability or security risks, so it's usually better to address the problem by reducing the command line length within IntelliJ IDEA.