dmikurube/CoroutineExceptionHandlerLogging.kt

## build.gradle
plugins {
    id "org.jetbrains.kotlin.jvm" version "1.7.22"
    id "application"
}

sourceSets {
    main {
        kotlin {
            srcDir "."
            include "*.kt"
        }
        resources {
            srcDir "."
            include "*.xml"
        }
    }
}

repositories {
    mavenCentral()
}

dependencies {
    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.4")
    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-slf4j:1.6.4")
    implementation("io.github.microutils:kotlin-logging:3.0.4")
    implementation("ch.qos.logback:logback-classic:1.3.5")
}

application {
    mainClass = "CoroutineExceptionHandlerLoggingKt"
}

## CoroutineExceptionHandlerLogging.kt
import kotlinx.coroutines.CoroutineExceptionHandler
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.Job
import kotlinx.coroutines.SupervisorJob
import kotlinx.coroutines.delay
import kotlinx.coroutines.launch
import kotlinx.coroutines.runBlocking
import kotlinx.coroutines.slf4j.MDCContext
import mu.KotlinLogging
import org.slf4j.MDC

private val logger = KotlinLogging.logger {}

fun main() = runBlocking {
    var handler: CoroutineExceptionHandler = CoroutineExceptionHandler { context, exception ->
        logger.error(exception) { "Exception-logging" }
    }

    val scope: CoroutineScope = CoroutineScope(SupervisorJob() + Dispatchers.IO + handler)

    val jobs: MutableList<Job> = mutableListOf()

    for (i in 0..9) {
        MDC.put("foo", i.toString())
        jobs.add(scope.launch(MDCContext()) {
            if (i < 5) {
                delay(100)
            } else {
                delay(200)
            }
            println("Print[${i}]")
            throw RuntimeException("RuntimeException[${i}]")
        })
    }

    for (job in jobs) {
        job.join()
    }
}

## logback.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE logback>
<configuration>
  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
      <pattern>%n[%X{foo}] %m%n</pattern>
    </encoder>
  </appender>
  <root>
    <appender-ref ref="STDOUT" />
  </root>
</configuration>
	plugins {
	id "org.jetbrains.kotlin.jvm" version "1.7.22"
	id "application"
	}

	sourceSets {
	main {
	kotlin {
	srcDir "."
	include "*.kt"
	}
	resources {
	srcDir "."
	include "*.xml"
	}
	}
	}

	repositories {
	mavenCentral()
	}

	dependencies {
	implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.4")
	implementation("org.jetbrains.kotlinx:kotlinx-coroutines-slf4j:1.6.4")
	implementation("io.github.microutils:kotlin-logging:3.0.4")
	implementation("ch.qos.logback:logback-classic:1.3.5")
	}

	application {
	mainClass = "CoroutineExceptionHandlerLoggingKt"
	}
	import kotlinx.coroutines.CoroutineExceptionHandler
	import kotlinx.coroutines.CoroutineScope
	import kotlinx.coroutines.Dispatchers
	import kotlinx.coroutines.Job
	import kotlinx.coroutines.SupervisorJob
	import kotlinx.coroutines.delay
	import kotlinx.coroutines.launch
	import kotlinx.coroutines.runBlocking
	import kotlinx.coroutines.slf4j.MDCContext
	import mu.KotlinLogging
	import org.slf4j.MDC

	private val logger = KotlinLogging.logger {}

	fun main() = runBlocking {
	var handler: CoroutineExceptionHandler = CoroutineExceptionHandler { context, exception ->
	logger.error(exception) { "Exception-logging" }
	}

	val scope: CoroutineScope = CoroutineScope(SupervisorJob() + Dispatchers.IO + handler)

	val jobs: MutableList<Job> = mutableListOf()

	for (i in 0..9) {
	MDC.put("foo", i.toString())
	jobs.add(scope.launch(MDCContext()) {
	if (i < 5) {
	delay(100)
	} else {
	delay(200)
	}
	println("Print[${i}]")
	throw RuntimeException("RuntimeException[${i}]")
	})
	}

	for (job in jobs) {
	job.join()
	}
	}
	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE logback>
	<configuration>
	<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
	<encoder>
	<pattern>%n[%X{foo}] %m%n</pattern>
	</encoder>
	</appender>
	<root>
	<appender-ref ref="STDOUT" />
	</root>
	</configuration>