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Fix for Array index out of bounds#807

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Andrey1994 merged 1 commit intomasterfrom
finding-autofix-8906283b
Apr 26, 2026
Merged

Fix for Array index out of bounds#807
Andrey1994 merged 1 commit intomasterfrom
finding-autofix-8906283b

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To fix this safely without changing intended behavior, validate that an option requiring a value actually has a following token before reading args[i + 1]. The best approach here is to add a guard at the top of the loop: when args[i] is one of the known value-taking flags and i + 1 >= args.length, throw an IllegalArgumentException with a clear message. Then, after consuming a value, increment i (i++) so the value token is not reprocessed as another flag.

In java_package/brainflow/src/main/java/brainflow/examples/Markers.java, update parse_args loop body (lines 31–69 region) to:

  • Capture args[i] into a local arg.
  • Check whether arg is a known flag requiring a value and whether a value exists.
  • Use arg in comparisons and reads from args[i + 1].
  • Add i++; inside each matched branch after assignment/parsing.

No new imports or dependencies are needed.

Suggested fixes powered by Copilot Autofix. Review carefully before merging.

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
@Andrey1994 Andrey1994 marked this pull request as ready for review April 26, 2026 15:38
@Andrey1994 Andrey1994 merged commit 1600e5f into master Apr 26, 2026
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Comment on lines +39 to +41
if (requires_value && i + 1 >= args.length)
{
throw new IllegalArgumentException ("Missing value for argument: " + arg);
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P2 Badge Reject option tokens used as missing argument values

The new guard only checks that i + 1 exists, so a missing value in the middle of the CLI can still consume the next flag as data (for example, --ip-address --board-id 1 sets ip_address to --board-id and then skips parsing --board-id because of the later i++). This silently misconfigures inputs instead of reporting a missing value, which is a regression from the intended validation behavior. Consider treating a known flag token in args[i + 1] as an absent value and throwing IllegalArgumentException in that case as well.

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