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Weakly reference Activity for transaction finished callback #2203

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merged 5 commits into from Aug 3, 2022
+31 −2
Merged

Weakly reference Activity for transaction finished callback #2203

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edb6596
Weakly reference Activity for transaction finished callback
adinauer Aug 3, 2022
bb098f5
Add changelog
adinauer Aug 3, 2022
544709c
Actually use weakRef
adinauer Aug 3, 2022
1b171c6
CR
adinauer Aug 3, 2022
8946e0f
Merge branch 'main' into feat/fix-activity-leak
adinauer Aug 3, 2022
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -4,6 +4,7 @@

### Fixes

- Weakly reference Activity for transaction finished callback ([#2203](https://github.com/getsentry/sentry-java/pull/2203))
- `attach-screenshot` set on Manual init. didn't work ([#2186](https://github.com/getsentry/sentry-java/pull/2186))
- Remove extra space from `spring.factories` causing issues in old versions of Spring Boot ([#2181](https://github.com/getsentry/sentry-java/pull/2181))

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32 changes: 30 additions & 2 deletions sentry-android-core/src/main/java/io/sentry/android/core/ActivityLifecycleIntegration.java
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Expand Up @@ -23,6 +23,7 @@
import io.sentry.util.Objects;
import java.io.Closeable;
import java.io.IOException;
import java.lang.ref.WeakReference;
import java.util.Date;
import java.util.List;
import java.util.Map;
Expand Down Expand Up @@ -146,6 +147,7 @@ private void stopPreviousTransactions() {
}

private void startTracing(final @NotNull Activity activity) {
WeakReference<Activity> weakActivity = new WeakReference<>(activity);
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Please try to reproduce the issue with and without the fix using LeakCanary.
Upgrade leakcanary to the latest version -> https://github.com/square/leakcanary/releases/tag/v2.9.1

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Tried with 2.9.1 but it didn't find anything regardless of WeakReference or old implementation.

if (performanceEnabled && !isRunningTransaction(activity) && hub != null) {
// as we allow a single transaction running on the bound Scope, we finish the previous ones
stopPreviousTransactions();
Expand All @@ -167,7 +169,20 @@ private void startTracing(final @NotNull Activity activity) {
(Date) null,
true,
(finishingTransaction) -> {
activityFramesTracker.setMetrics(activity, finishingTransaction.getEventId());
@Nullable Activity unwrappedActivity = weakActivity.get();
if (unwrappedActivity != null) {
activityFramesTracker.setMetrics(
unwrappedActivity, finishingTransaction.getEventId());
} else {
if (options != null) {
options
.getLogger()
.log(
SentryLevel.WARNING,
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What log level should this be?

"Unable to track activity frames as the Activity %s has been destroyed.",
activityName);
}
}
});
} else {
// start transaction with app start timestamp
Expand All @@ -178,7 +193,20 @@ private void startTracing(final @NotNull Activity activity) {
appStartTime,
true,
(finishingTransaction) -> {
activityFramesTracker.setMetrics(activity, finishingTransaction.getEventId());
@Nullable Activity unwrappedActivity = weakActivity.get();
if (unwrappedActivity != null) {
activityFramesTracker.setMetrics(
unwrappedActivity, finishingTransaction.getEventId());
} else {
if (options != null) {
options
.getLogger()
.log(
SentryLevel.WARNING,
"Unable to track activity frames as the Activity %s has been destroyed.",
activityName);
}
}
});
// start specific span for app start

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