fix(android): Treat an unpopulated connection cache as stale (JAVA-717)

[runningcode]

PR Stack (Clock semantics hardening)

• feat(time): Add a monotonic clock abstraction (JAVA-571) #6028
• feat(time): Add Timestamp, EpochClock and AnchoredClock (JAVA-572) #6045
• this PR
• ref(transport): Measure rate-limit backoff on a monotonic clock (JAVA-574) #6030
• ref(checkin): Measure check-in durations with Stopwatch (JAVA-576) #6032
• ref(android): Measure ANR thresholds on the monotonic clock (JAVA-579) #6041
• ref(time): Deprecate the legacy date and clock providers (JAVA-571) #6043

---

📜 Description

AndroidConnectionStatusProvider used 0 to mean "cache never populated", and compared it against SystemClock.uptimeMillis():

private volatile long lastCacheUpdateTime = 0;
private static final long CACHE_TTL_MS = 2 * 60 * 1000L;

private boolean isCacheValid() {
  return (timeProvider.getCurrentTimeMillis() - lastCacheUpdateTime) < CACHE_TTL_MS;
}

uptimeMillis() is 0 at boot, so 0 does not mean "unset" — it means "populated at boot". For the first two minutes of every boot, an empty cache reads as fresh.

The cache now holds a Deadline, so "never populated" is expired by construction and has no numeric value to get wrong.

Stacked on #6028, which adds the clock types this uses.

💡 Motivation and Context

• resolves: JAVA-717

💚 How did you test it?

A regression test asserts that a provider constructed at tick 0 populates the cache before reading it. It fails if the deadline is constructed fresh instead of passed, which is the shape of the original bug.

📝 Checklist

• I added GH Issue ID & Linear ID
• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.
• Public API changes reviewed by another Mobile SDK team member or implemented according to the develop docs spec.

[linear-code]

JAVA-717

[sentry]

📲 Install Builds

Android

🔗 App Name	App ID	Version	Configuration
SDK Size	io.sentry.tests.size	8.55.0 (1)	release

⚙️ sentry-android Build Distribution Settings