Dependency versions mismatch in v2.8.0-alpha

[greatvovan]

Describe the bug

AppenderLoggingException on logging with Appenders by opentelemetry-log4j-appender-2.17, opentelemetry-logback-appender-1.0 of version 2.8.0-alpha.

Steps to reproduce

1. sbt:

libraryDependencies += "org.apache.logging.log4j" % "log4j-core" % "2.24.0"
libraryDependencies += "org.apache.logging.log4j" % "log4j-api" % "2.24.0"
libraryDependencies += "io.opentelemetry.instrumentation" % "opentelemetry-log4j-appender-2.17" % "2.8.0-alpha"
libraryDependencies += "org.slf4j" % "slf4j-simple" % "2.0.16"
libraryDependencies += "com.azure" % "azure-monitor-opentelemetry-exporter" % "1.0.0-beta.28"

2. Scala:

object Main extends App {
  var aiConnStr = "..."

  import org.apache.logging.log4j.LogManager
  import org.apache.logging.log4j.Level
  import org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilderFactory
  import org.apache.logging.log4j.core.config.Configurator
  import io.opentelemetry.instrumentation.log4j.appender.v2_17.OpenTelemetryAppender
  import io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdk
  import io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdkBuilder
  import com.azure.monitor.opentelemetry.exporter.AzureMonitorExporterBuilder

  val configBuilder = ConfigurationBuilderFactory.newConfigurationBuilder()
  val configuration = configBuilder
    .add(
      configBuilder
        .newAppender("Otel", "OpenTelemetry")
    )
    .add(
      configBuilder 
        .newRootLogger(Level.INFO)
        .add(configBuilder.newAppenderRef("Otel"))
    )
    .build(false)
  Configurator.initialize(configuration)

  val logger = LogManager.getLogger()

  val sdkBuilder = AutoConfiguredOpenTelemetrySdk.builder()

  new AzureMonitorExporterBuilder()
      .connectionString(aiConnStr)
      .install(sdkBuilder)

  val openTelemetry = sdkBuilder.build().getOpenTelemetrySdk()      
  OpenTelemetryAppender.install(openTelemetry)

  logger.info("Test")
}

3. sbt
   run

Expected behavior

Logging works emitting a message. No exceptions are thrown.

Actual behavior

Error::

ERROR An exception occurred processing Appender Otel org.apache.logging.log4j.core.appender.AppenderLoggingException: java.lang.NoClassDefFoundError: io/opentelemetry/api/incubator/logs/AnyValue

        at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:164)
        at org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:133)
        at org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:124)
        at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:88)
        at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:714)
        at org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:672)
        at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:648)
        at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:584)
        at org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:92)
        at org.apache.logging.log4j.core.Logger.log(Logger.java:240)
        at org.apache.logging.log4j.spi.AbstractLogger.tryLogMessage(AbstractLogger.java:2904)
        at org.apache.logging.log4j.spi.AbstractLogger.logMessageTrackRecursion(AbstractLogger.java:2857)
        at org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2839)
        at org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:2618)
        at org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:2565)
        at org.apache.logging.log4j.spi.AbstractLogger.info(AbstractLogger.java:1568)
        at Main$.delayedEndpoint$Main$1(Main.scala:39)
        at Main$delayedInit$body.apply(Main.scala:1)
        at scala.Function0.apply$mcV$sp(Function0.scala:42)
        at scala.Function0.apply$mcV$sp$(Function0.scala:42)
        at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:17)
        at scala.App.$anonfun$main$1(App.scala:98)
        at scala.App.$anonfun$main$1$adapted(App.scala:98)
        at scala.collection.IterableOnceOps.foreach(IterableOnce.scala:576)
        at scala.collection.IterableOnceOps.foreach$(IterableOnce.scala:574)
        at scala.collection.AbstractIterable.foreach(Iterable.scala:933)
        at scala.App.main(App.scala:98)
        at scala.App.main$(App.scala:96)
        at Main$.main(Main.scala:1)
        at Main.main(Main.scala)
        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
        at sbt.Run.invokeMain(Run.scala:144)
        at sbt.Run.execute$1(Run.scala:94)
        at sbt.Run.$anonfun$runWithLoader$5(Run.scala:121)
        at sbt.Run$.executeSuccess(Run.scala:187)
        at sbt.Run.runWithLoader(Run.scala:121)
        at sbt.Defaults$.$anonfun$bgRunTask$6(Defaults.scala:2038)
        at sbt.Defaults$.$anonfun$termWrapper$2(Defaults.scala:1977)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at scala.util.Try$.apply(Try.scala:213)
        at sbt.internal.BackgroundThreadPool$BackgroundRunnable.run(DefaultBackgroundJobService.scala:367)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1570)
Caused by: java.lang.NoClassDefFoundError: io/opentelemetry/api/incubator/logs/AnyValue
        at io.opentelemetry.sdk.logs.SdkLogRecordBuilder.setBody(SdkLogRecordBuilder.java:91)
        at io.opentelemetry.sdk.logs.SdkLogRecordBuilder.setBody(SdkLogRecordBuilder.java:24)
        at io.opentelemetry.instrumentation.log4j.appender.v2_17.internal.LogEventMapper.captureMessage(LogEventMapper.java:129)
        at io.opentelemetry.instrumentation.log4j.appender.v2_17.internal.LogEventMapper.mapLogEvent(LogEventMapper.java:94)
        at io.opentelemetry.instrumentation.log4j.appender.v2_17.OpenTelemetryAppender.emit(OpenTelemetryAppender.java:303)
        at io.opentelemetry.instrumentation.log4j.appender.v2_17.OpenTelemetryAppender.append(OpenTelemetryAppender.java:247)
        at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:160)
        ... 44 more
Caused by: java.lang.ClassNotFoundException: io.opentelemetry.api.incubator.logs.AnyValue
        at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445)
        at sbt.internal.ManagedClassLoader.findClass(ManagedClassLoader.java:103)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:592)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
        ... 51 more

Javaagent or library instrumentation version

2.8.0-alpha

Environment

Scala: 2.13
OS: 14.6.1 (23G93)

Additional context

Switching to version 2.7.0-alpha fixes the problem.

[laurit]

Firstly you should check what version of opentelemetry dependencies you have. Instrumentation 2.8.0 is compatible with otel api/sdk 1.42.1. If you see a different version (which is probably so based on the exception you get) you'll have to find a way to deal with it. In maven and gradle you'd import the BOM to enforce the versions, in sbt I have no idea what you'll need to do.

[greatvovan]

You might be right... After inspecting the package version in runtime, opentelemetry-api was of version 1.42.1, and opentelemetry-sdk was 1.40.0. Importing opentelemetry-bom v1.42.1 did not change a thing, but

libraryDependencies += "io.opentelemetry" % "opentelemetry-sdk" % "1.42.1"

did.
It is unfortunate that the default referenced versions are inconsistent.

[laurit]

It is unfortunate that the default referenced versions are inconsistent.

opentelemetry-log4j-appender-2.17 does not have a dependency on the sdk, it is users responsibility to bring in a compatible sdk. You probably get your sdk through azure-monitor-opentelemetry-exporter. Usually one would use a bom to align the versions, idk if sbt supports boms at all.

[greatvovan]

Anyway, I have a working solution for now. Thanks for your help.