Ignore JavascriptException on the native side

CHANGELOG.md

@@ -31,7 +31,7 @@
   ```
 
 ### Fixes
-
+- Ignore JavascriptException to filter out obfuscated duplicate JS Errors on Android ([#4232](https://github.com/getsentry/sentry-react-native/pull/4232))
 - Skips ignoring require cycle logs for RN 0.70 or newer ([#4214](https://github.com/getsentry/sentry-react-native/pull/4214))
 - Enhanced accuracy of time-to-display spans. ([#4189](https://github.com/getsentry/sentry-react-native/pull/4189))
 

packages/core/RNSentryAndroidTester/app/src/test/java/io/sentry/react/RNSentryModuleImplTest.kt

@@ -7,12 +7,14 @@ import com.facebook.react.bridge.JavaOnlyMap
 import com.facebook.react.bridge.Promise
 import com.facebook.react.bridge.ReactApplicationContext
 import com.facebook.react.bridge.WritableMap
+import com.facebook.react.common.JavascriptException
 import io.sentry.ILogger
 import io.sentry.SentryLevel
 import io.sentry.android.core.SentryAndroidOptions
 import org.junit.After
 import org.junit.Assert.assertEquals
 import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
@@ -125,4 +127,11 @@ class RNSentryModuleImplTest {
         module.getSentryAndroidOptions(actualOptions, options, logger)
         assertFalse(actualOptions.isEnableSpotlight)
     }
+
+    @Test
+    fun `the JavascriptException is added to the ignoredExceptionsForType list on initialisation`() {
+        val actualOptions = SentryAndroidOptions()
+        module.getSentryAndroidOptions(actualOptions, JavaOnlyMap.of(), logger)
+        assertTrue(actualOptions.ignoredExceptionsForType.contains(JavascriptException::class.java))
+    }
 }

packages/core/android/src/main/java/io/sentry/react/RNSentryModuleImpl.java

@@ -26,6 +26,7 @@
 import com.facebook.react.bridge.WritableMap;
 import com.facebook.react.bridge.WritableNativeArray;
 import com.facebook.react.bridge.WritableNativeMap;
+import com.facebook.react.common.JavascriptException;
 import com.facebook.react.modules.core.DeviceEventManagerModule;
 import io.sentry.HubAdapter;
 import io.sentry.ILogger;
@@ -58,7 +59,6 @@
 import io.sentry.android.core.internal.util.SentryFrameMetricsCollector;
 import io.sentry.android.core.performance.AppStartMetrics;
 import io.sentry.protocol.SdkVersion;
-import io.sentry.protocol.SentryException;
 import io.sentry.protocol.SentryId;
 import io.sentry.protocol.SentryPackage;
 import io.sentry.protocol.User;
@@ -274,20 +274,13 @@ protected void getSentryAndroidOptions(
       options.getExperimental().setSessionReplay(getReplayOptions(rnOptions));
       options.getReplayController().setBreadcrumbConverter(new RNSentryReplayBreadcrumbConverter());
     }
+
+    // React native internally throws a JavascriptException.
+    // we want to ignore it on the native side to avoid sending it twice.
+    options.addIgnoredExceptionForType(JavascriptException.class);
+
     options.setBeforeSend(
         (event, hint) -> {
-          // React native internally throws a JavascriptException
-          // Since we catch it before that, we don't want to send this one
-          // because we would send it twice
-          try {
-            SentryException ex = event.getExceptions().get(0);
-            if (null != ex && ex.getType().contains("JavascriptException")) {
-              return null;
-            }
-          } catch (Throwable ignored) { // NOPMD - We don't want to crash in any case
-            // We do nothing
-          }
-
           setEventOriginTag(event);
           addPackages(event, options.getSdkVersion());