fix(logging): Use ImmediateExecutorService in logging tests and fix Log4j2 scopes usage

Allow injecting ISentryExecutorService into LoggerBatchProcessor for deterministic test execution. Fix Log4j2 SentryAppender to use scopes instance instead of static Sentry calls for logging.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: romtsn

sentry-jul/src/test/kotlin/io/sentry/jul/SentryHandlerTest.kt

@@ -7,6 +7,9 @@ import io.sentry.SentryLogLevel
 import io.sentry.SentryOptions
 import io.sentry.checkEvent
 import io.sentry.checkLogs
+import io.sentry.logger.ILoggerBatchProcessorFactory
+import io.sentry.logger.LoggerBatchProcessor
+import io.sentry.test.ImmediateExecutorService
 import io.sentry.test.applyTestOptions
 import io.sentry.test.initForTest
 import io.sentry.transport.ITransport
@@ -45,6 +48,9 @@ class SentryHandlerTest {
       val options = SentryOptions()
       options.dsn = "http://key@localhost/proj"
       options.setTransportFactory { _, _ -> transport }
+      options.logs.loggerBatchProcessorFactory = ILoggerBatchProcessorFactory { options, client ->
+        LoggerBatchProcessor(options, client, ImmediateExecutorService())
+      }
       applyTestOptions(options)
       contextTags?.forEach { options.addContextTag(it) }
       logger = Logger.getLogger("jul.SentryHandlerTest")

sentry-log4j2/src/main/java/io/sentry/log4j2/SentryAppender.java

@@ -164,33 +164,45 @@ public SentryAppender(
 
   @Override
   public void start() {
+    start(getOptionsConfiguration(null));
+    super.start();
+  }
+
+  @NotNull
+  Sentry.OptionsConfiguration<SentryOptions> getOptionsConfiguration(
+      final @Nullable Sentry.OptionsConfiguration<SentryOptions> additionalOptionsConfiguration) {
+    return options -> {
+      options.setEnableExternalConfiguration(true);
+      options.setInitPriority(InitPriority.LOWEST);
+      options.setDsn(dsn);
+      if (debug != null) {
+        options.setDebug(debug);
+      }
+      options.setSentryClientName(
+          BuildConfig.SENTRY_LOG4J2_SDK_NAME + "/" + BuildConfig.VERSION_NAME);
+      options.setSdkVersion(createSdkVersion(options));
+      if (contextTags != null) {
+        for (final String contextTag : contextTags) {
+          options.addContextTag(contextTag);
+        }
+      }
+      Optional.ofNullable(transportFactory).ifPresent(options::setTransportFactory);
+      if (additionalOptionsConfiguration != null) {
+        additionalOptionsConfiguration.configure(options);
+      }
+    };
+  }
+
+  void start(final @NotNull Sentry.OptionsConfiguration<SentryOptions> optionsConfiguration) {
     try {
-      Sentry.init(
-          options -> {
-            options.setEnableExternalConfiguration(true);
-            options.setInitPriority(InitPriority.LOWEST);
-            options.setDsn(dsn);
-            if (debug != null) {
-              options.setDebug(debug);
-            }
-            options.setSentryClientName(
-                BuildConfig.SENTRY_LOG4J2_SDK_NAME + "/" + BuildConfig.VERSION_NAME);
-            options.setSdkVersion(createSdkVersion(options));
-            if (contextTags != null) {
-              for (final String contextTag : contextTags) {
-                options.addContextTag(contextTag);
-              }
-            }
-            Optional.ofNullable(transportFactory).ifPresent(options::setTransportFactory);
-          });
+      Sentry.init(optionsConfiguration);
     } catch (IllegalArgumentException e) {
       final @Nullable String errorMessage = e.getMessage();
       if (errorMessage == null || !errorMessage.startsWith("DSN is required.")) {
         LOGGER.warn("Failed to init Sentry during appender initialization: " + errorMessage);
       }
     }
     addPackageAndIntegrationInfo();
-    super.start();
   }
 
   @Override
@@ -235,14 +247,13 @@ protected void captureLog(@NotNull LogEvent loggingEvent) {
     }
 
     final @NotNull Map<String, String> contextData = loggingEvent.getContextData().toMap();
-    final @NotNull List<String> contextTags =
-        ScopesAdapter.getInstance().getOptions().getContextTags();
+    final @NotNull List<String> contextTags = scopes.getOptions().getContextTags();
     LoggerPropertiesUtil.applyPropertiesToAttributes(attributes, contextTags, contextData);
 
     final @NotNull SentryLogParameters params = SentryLogParameters.create(attributes);
     params.setOrigin("auto.log.log4j2");
 
-    Sentry.logger().log(sentryLevel, params, formattedMessage, arguments);
+    scopes.logger().log(sentryLevel, params, formattedMessage, arguments);
   }
 
   /**

sentry-log4j2/src/test/kotlin/io/sentry/log4j2/SentryAppenderTest.kt

@@ -8,6 +8,9 @@ import io.sentry.SentryLevel
 import io.sentry.SentryLogLevel
 import io.sentry.checkEvent
 import io.sentry.checkLogs
+import io.sentry.logger.ILoggerBatchProcessorFactory
+import io.sentry.logger.LoggerBatchProcessor
+import io.sentry.test.ImmediateExecutorService
 import io.sentry.test.initForTest
 import io.sentry.transport.ITransport
 import java.time.Instant
@@ -93,7 +96,14 @@ class SentryAppenderTest {
 
       loggerContext.updateLoggers(config)
 
-      appender.start()
+      appender.start(
+        appender.getOptionsConfiguration { options ->
+          options.logs.loggerBatchProcessorFactory =
+            ILoggerBatchProcessorFactory { options, client ->
+              LoggerBatchProcessor(options, client, ImmediateExecutorService())
+            }
+        }
+      )
       loggerContext.start()
 
       return LogManager.getContext().getLogger(SentryAppenderTest::class.java.name)

sentry-logback/src/test/kotlin/io/sentry/logback/SentryAppenderTest.kt

@@ -18,6 +18,9 @@ import io.sentry.SentryLogLevel
 import io.sentry.SentryOptions
 import io.sentry.checkEvent
 import io.sentry.checkLogs
+import io.sentry.logger.ILoggerBatchProcessorFactory
+import io.sentry.logger.LoggerBatchProcessor
+import io.sentry.test.ImmediateExecutorService
 import io.sentry.test.applyTestOptions
 import io.sentry.test.initForTest
 import io.sentry.transport.ITransport
@@ -69,6 +72,9 @@ class SentryAppenderTest {
       options.dsn = dsn
       options.isSendDefaultPii = sendDefaultPii
       options.logs.isEnabled = enableLogs
+      options.logs.loggerBatchProcessorFactory = ILoggerBatchProcessorFactory { options, client ->
+        LoggerBatchProcessor(options, client, ImmediateExecutorService())
+      }
       applyTestOptions(options)
       contextTags?.forEach { options.addContextTag(it) }
       appender.setOptions(options)

sentry/api/sentry.api

@@ -5259,6 +5259,7 @@ public class io/sentry/logger/LoggerBatchProcessor : io/sentry/logger/ILoggerBat
 	public static final field MAX_QUEUE_SIZE I
 	protected final field options Lio/sentry/SentryOptions;
 	public fun <init> (Lio/sentry/SentryOptions;Lio/sentry/ISentryClient;)V
+	public fun <init> (Lio/sentry/SentryOptions;Lio/sentry/ISentryClient;Lio/sentry/ISentryExecutorService;)V
 	public fun add (Lio/sentry/SentryLogEvent;)V
 	public fun close (Z)V
 	public fun flush (J)V

sentry/src/main/java/io/sentry/logger/LoggerBatchProcessor.java

@@ -21,8 +21,10 @@
 import java.util.concurrent.Future;
 import java.util.concurrent.RejectedExecutionException;
 import java.util.concurrent.TimeUnit;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
+import org.jetbrains.annotations.TestOnly;
 
 @Open
 public class LoggerBatchProcessor implements ILoggerBatchProcessor {
@@ -44,10 +46,19 @@ public class LoggerBatchProcessor implements ILoggerBatchProcessor {
 
   public LoggerBatchProcessor(
       final @NotNull SentryOptions options, final @NotNull ISentryClient client) {
+    this(options, client, new SentryExecutorService(options));
+  }
+
+  @ApiStatus.Internal
+  @TestOnly
+  public LoggerBatchProcessor(
+      final @NotNull SentryOptions options,
+      final @NotNull ISentryClient client,
+      final @NotNull ISentryExecutorService executorService) {
     this.options = options;
     this.client = client;
     this.queue = new ConcurrentLinkedQueue<>();
-    this.executorService = new SentryExecutorService(options);
+    this.executorService = executorService;
   }
 
   @Override