Regarding the issue where the default FFmpeg executable locator executes commands before completing the copy/chmod 755 of FFmpeg, resulting in the error: Cannot run program "/tmp/jave/ffmpeg-amd64-3.5.0": error=13, Permission denied

[yjsdev]

java

if (!isWindows) {
      try {
          Runtime.getRuntime().exec(new String[]{"/bin/chmod", "755", ffmpegFile.getAbsolutePath()});
      } catch (IOException var11) {
          LOG.error("Error setting executable via chmod", var11);
      }
  }

Suggested Technical Context (for reports/bug tracking):
"The issue occurs when the FFmpeg binary is copied to /tmp/jave/ but the chmod operation (to set 755 permissions) hasn’t finished before the process attempts execution. This race condition triggers Java’s IOException with error=13 (Permission denied)."

Possible Solutions:
Add a permission check after exec chmod:

java

if (!file.canExecute()) {
    LOG.warn("File is still not executable after chmod, retrying...");
    // retry
    if (!file.setExecutable(true)) {
        LOG.error("Failed to set executable permission for: {}", filePath);
    }
}

Synchronize the copy + chmod process (e.g., use Process.waitFor() after chmod).

Retry logic (if the first attempt fails due to permissions).

Let me know if you need further refinement!