Fix NegativeArraySizeException in MainActivity negative_index handler

[sentry]

Fixes ANDROID-KZ

Root cause

The onClick handler for the negative_index button in MainActivity allocated an array with a hardcoded negative size:

int[] a = new int[-5];

Java does not permit negative array sizes, so this line always throws NegativeArraySizeException: -5 and crashes the app as soon as the button is tapped (MainActivity.java:61).

Fix

The requested size is now clamped to a non-negative value before the allocation, and the invalid input is reported to Sentry as a handled warning instead of taking down the process:

int requestedSize = -5;
// Java does not allow negative array sizes, so clamp before allocating
int size = Math.max(requestedSize, 0);
if (size != requestedSize) {
    Sentry.captureMessage(
        "Requested array size " + requestedSize + " is negative, allocating " + size + " instead",
        SentryLevel.WARNING);
}
int[] a = new int[size];
Log.i(activity, "Allocated int array of length " + a.length);

Verification

Since the Android SDK/NDK is not available in this environment, the handler was verified by compiling MainActivity against the real Sentry (8.51.0) and Gson jars plus minimal stubs for the Android framework classes it uses, then invoking the registered negative_index click listener:

• Original code: java.lang.NegativeArraySizeException: -5 thrown from the lambda (reproduces the reported crash).
• Patched code: listener runs to completion, no exception, array of length 0 allocated and the negative size reported as a handled warning.

Sentry.captureMessage(String, SentryLevel) was confirmed to exist in the SDK version used by the project (javap against sentry-8.51.0.jar).

[sentry]

📲 Install Builds

Android

🔗 App Name	App ID	Version	Configuration
Android	com.example.vu.android	24.12.26 (241226)	release
Android	com.example.vu.android	24.12.26 (241226)	debug
Android	com.example.vu.android	24.12.26 (241226)	release

⚙️ android Build Distribution Settings

[codecov]

Codecov Report

❌ Patch coverage is 0% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 0.00%. Comparing base (21c77a4) to head (367ddb7).

Files with missing lines	Patch %	Lines
...main/java/com/example/vu/android/MainActivity.java	0.00%	6 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #256   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files         16      16           
  Lines        883     888    +5     
  Branches      67      68    +1     
=====================================
- Misses       883     888    +5     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.