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我正在通过嵌入式 Jetty 服务器运行我的 Ktor Web 应用程序。该应用程序在 IDE 中运行良好。但是,一旦我用 shadowJar 打包并运行生成的 fat jar,Jetty 服务器就会遇到 NoClassDefFoundError。我相信 NoClassDefFoundError 是由 ExceptionInInitializerError 引起的,该异常是由于 PreEncodedHttpField 内部的 Jetty 静态初始化内部的 ArrayIndexOutOfBoundsException 引起的。 IDE内部怎么不会出现这个错误?从 fat jar 运行 Ktor 应用程序时如何避免它?
02-06-2018 00:27:59.093 [qtp859617558-17] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jetty.server.HttpConnection
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.Invocable.invokePreferred(Invocable.java:128)
at org.eclipse.jetty.util.thread.Invocable$InvocableExecutor.invoke(Invocable.java:222)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:294)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:126)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
02-06-2018 00:27:59.093 [qtp859617558-24] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jetty.server.HttpConnection
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
02-06-2018 00:27:59.099 [qtp859617558-26] DEBUG org.eclipse.jetty.io.IdleTimeout - SocketChannelEndPoint@2d8b0948{/0:0:0:0:0:0:0:1:50406<->/0:0:0:0:0:0:0:1:9000,OPEN,fill=-,flush=-,to=10/30000}{io=0/0,kio=0,kro=0}-><null> idle timeout check, elapsed: 6 ms, remaining: 29994 ms
02-06-2018 00:27:59.099 [qtp859617558-17] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jetty.server.HttpConnection
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.Invocable.invokePreferred(Invocable.java:128)
at org.eclipse.jetty.util.thread.Invocable$InvocableExecutor.invoke(Invocable.java:222)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:294)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:126)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
02-06-2018 00:27:59.099 [qtp859617558-24] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jetty.server.HttpConnection
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
02-06-2018 00:27:59.099 [qtp859617558-26] DEBUG o.eclipse.jetty.io.AbstractEndPoint - onOpen SocketChannelEndPoint@2d8b0948{/0:0:0:0:0:0:0:1:50406<->/0:0:0:0:0:0:0:1:9000,OPEN,fill=-,flush=-,to=15/30000}{io=0/0,kio=0,kro=0}-><null>
02-06-2018 00:27:59.099 [qtp859617558-17] DEBUG o.e.j.u.t.Invocable$InvocableExecutor - org.eclipse.jetty.util.thread.Invocable$InvocableExecutor@4dfc073a invoked org.eclipse.jetty.io.ManagedSelector$CreateEndPoint@543935e4
02-06-2018 00:27:59.099 [qtp859617558-24] DEBUG o.e.j.util.thread.QueuedThreadPool - ran org.eclipse.jetty.io.ManagedSelector$CreateEndPoint@5689f60
02-06-2018 00:27:59.099 [qtp859617558-17] DEBUG o.e.j.u.t.strategy.EatWhatYouKill - EatWhatYouKill@707b1a44/org.eclipse.jetty.io.ManagedSelector$SelectorProducer@7132a9dc/PRODUCING/1/1 produce exit
02-06-2018 00:27:59.099 [qtp859617558-26] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jetty.server.HttpConnection
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
02-06-2018 00:27:59.099 [qtp859617558-17] DEBUG o.e.j.util.thread.QueuedThreadPool - ran org.eclipse.jetty.io.ManagedSelector$$Lambda$26/86506638@2c7106d9
02-06-2018 00:27:59.100 [qtp859617558-26] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jetty.server.HttpConnection
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
02-06-2018 00:27:59.100 [qtp859617558-26] DEBUG o.e.j.util.thread.QueuedThreadPool - ran org.eclipse.jetty.io.ManagedSelector$CreateEndPoint@5ce56a5a
02-06-2018 00:27:59.093 [qtp859617558-20] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jetty.server.HttpConnection
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
02-06-2018 00:27:59.095 [qtp859617558-22] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.ExceptionInInitializerError: null
at org.eclipse.jetty.server.HttpConnection.<clinit>(HttpConnection.java:54)
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
at org.eclipse.jetty.http.PreEncodedHttpField.<clinit>(PreEncodedHttpField.java:71)
... 9 common frames omitted
02-06-2018 00:27:59.094 [qtp859617558-23] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jetty.server.HttpConnection
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
02-06-2018 00:27:59.102 [qtp859617558-23] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jetty.server.HttpConnection
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
02-06-2018 00:27:59.102 [qtp859617558-23] DEBUG o.e.j.util.thread.QueuedThreadPool - ran org.eclipse.jetty.io.ManagedSelector$CreateEndPoint@752bc090
02-06-2018 00:27:59.102 [qtp859617558-20] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jetty.server.HttpConnection
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
02-06-2018 00:27:59.102 [qtp859617558-20] DEBUG o.e.j.util.thread.QueuedThreadPool - ran org.eclipse.jetty.io.ManagedSelector$CreateEndPoint@1985be4c
02-06-2018 00:27:59.103 [qtp859617558-22] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.ExceptionInInitializerError: null
at org.eclipse.jetty.server.HttpConnection.<clinit>(HttpConnection.java:54)
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
at org.eclipse.jetty.http.PreEncodedHttpField.<clinit>(PreEncodedHttpField.java:71)
... 9 common frames omitted
02-06-2018 00:27:59.103 [qtp859617558-22] DEBUG o.e.j.util.thread.QueuedThreadPool - ran org.eclipse.jetty.io.ManagedSelector$CreateEndPoint@3416caab
02-06-2018 00:27:59.103 [qtp859617558-18-acceptor-0@178f268a-ServerConnector@cfbc8e8{HTTP/1.1,[http/1.1, h2c]}{0.0.0.0:9000}] DEBUG org.eclipse.jetty.io.ManagedSelector - Queued change org.eclipse.jetty.io.ManagedSelector$Accept@6cf5cd13 on org.eclipse.jetty.io.ManagedSelector@440e3ce6 id=0 keys=1 selected=0
02-06-2018 00:27:59.108 [qtp859617558-16] DEBUG org.eclipse.jetty.io.ManagedSelector - Selector loop woken up from select, 0/0 selected
02-06-2018 00:27:59.108 [qtp859617558-16] DEBUG org.eclipse.jetty.io.ManagedSelector - Running action org.eclipse.jetty.io.ManagedSelector$Accept@6cf5cd13
02-06-2018 00:27:59.108 [qtp859617558-16] DEBUG org.eclipse.jetty.io.ManagedSelector - Queued change org.eclipse.jetty.io.ManagedSelector$CreateEndPoint@44ae85a2 on org.eclipse.jetty.io.ManagedSelector@440e3ce6 id=0 keys=1 selected=0
02-06-2018 00:27:59.108 [qtp859617558-16] DEBUG o.e.j.u.t.strategy.EatWhatYouKill - EatWhatYouKill@3e67f5f2/org.eclipse.jetty.io.ManagedSelector$SelectorProducer@fd53053/PRODUCING/1/1->IDLE/0/1 EPC! org.eclipse.jetty.io.ManagedSelector$CreateEndPoint@44ae85a2
02-06-2018 00:27:59.109 [qtp859617558-19] DEBUG o.e.j.u.t.strategy.EatWhatYouKill - EatWhatYouKill@3e67f5f2/org.eclipse.jetty.io.ManagedSelector$SelectorProducer@fd53053/PRODUCING/0/1 produce non-blocking
02-06-2018 00:27:59.109 [qtp859617558-19] DEBUG org.eclipse.jetty.io.ManagedSelector - Selector loop waiting on select
02-06-2018 00:27:59.109 [qtp859617558-16] DEBUG o.e.j.util.thread.QueuedThreadPool - queue EatWhatYouKill@3e67f5f2/org.eclipse.jetty.io.ManagedSelector$SelectorProducer@fd53053/PRODUCING/0/1
02-06-2018 00:27:59.109 [qtp859617558-16] DEBUG o.e.j.u.t.Invocable$InvocableExecutor - org.eclipse.jetty.util.thread.Invocable$InvocableExecutor@5ba4a467 invoke org.eclipse.jetty.io.ManagedSelector$CreateEndPoint@44ae85a2
02-06-2018 00:27:59.109 [qtp859617558-16] DEBUG org.eclipse.jetty.io.IdleTimeout - SocketChannelEndPoint@56d0b70c{/0:0:0:0:0:0:0:1:50414<->/0:0:0:0:0:0:0:1:9000,OPEN,fill=-,flush=-,to=0/30000}{io=0/0,kio=0,kro=0}-><null> idle timeout check, elapsed: 0 ms, remaining: 30000 ms
02-06-2018 00:27:59.110 [qtp859617558-16] DEBUG o.eclipse.jetty.io.AbstractEndPoint - onOpen SocketChannelEndPoint@56d0b70c{/0:0:0:0:0:0:0:1:50414<->/0:0:0:0:0:0:0:1:9000,OPEN,fill=-,flush=-,to=0/30000}{io=0/0,kio=0,kro=0}-><null>
02-06-2018 00:27:59.110 [qtp859617558-16] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jetty.server.HttpConnection
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.Invocable.invokePreferred(Invocable.java:128)
at org.eclipse.jetty.util.thread.Invocable$InvocableExecutor.invoke(Invocable.java:222)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:294)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:126)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
02-06-2018 00:27:59.113 [qtp859617558-26] DEBUG o.e.j.util.thread.QueuedThreadPool - run EatWhatYouKill@3e67f5f2/org.eclipse.jetty.io.Man053/PRODUCING/0/1
02-06-2018 00:27:59.113 [qtp859617558-26] DEBUG o.e.j.u.t.strategy.EatWhatYouKill - EatWhatYouKill@3e67f5f2/org.eclipse.jetty.io.ManagedSRODUCING/0/1 run
02-06-2018 00:27:59.116 [qtp859617558-16] DEBUG org.eclipse.jetty.io.ManagedSelector -
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jetty.server.HttpConnection
at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:482)
at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:424)
at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:61)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:603)
at org.eclipse.jetty.util.thread.Invocable.invokePreferred(Invocable.java:128)
at org.eclipse.jetty.util.thread.Invocable$InvocableExecutor.invoke(Invocable.java:222)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:294)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:126)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
at java.lang.Thread.run(Thread.java:748)
02-06-2018 00:27:59.119 [qtp859617558-16] DEBUG o.e.j.u.t.Invocable$InvocableExecutor - org.eclipse.jetty.util.thread.Invocable$Invocablepse.jetty.io.ManagedSelector$CreateEndPoint@44ae85a2
02-06-2018 00:27:59.119 [qtp859617558-16] DEBUG o.e.j.u.t.strategy.EatWhatYouKill - EatWhatYouKill@3e67f5f2/org.eclipse.jetty.io.ManagedSRODUCING/1/1 produce exit
02-06-2018 00:27:59.119 [qtp859617558-16] DEBUG o.e.j.util.thread.QueuedThreadPool - ran org.eclipse.jetty.io.ManagedSelector$$Lambda$26/
我的 gradle 文件:
buildscript {
ext.kotlin_version = '1.2.21'
ext.ktorVersion = '0.9.1'
repositories {
mavenCentral()
jcenter()
}
dependencies {
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
classpath "com.github.jengelman.gradle.plugins:shadow:2.0.2"
}
}
apply plugin: 'com.github.johnrengelman.shadow'
apply plugin: 'java'
apply plugin: 'kotlin'
apply plugin: 'application'
mainClassName = 'routing.MainKt'
shadowJar {
baseName = 'baseName'
classifier = null
version = null
}
sourceCompatibility = 1.8
compileKotlin {
kotlinOptions.jvmTarget = "1.8"
}
compileTestKotlin {
kotlinOptions.jvmTarget = "1.8"
}
kotlin {
experimental {
coroutines "enable"
}
}
repositories {
mavenCentral()
jcenter()
maven { url "https://dl.bintray.com/kotlin/kotlinx" }
maven { url "https://dl.bintray.com/kotlin/ktor" }
maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
}
dependencies {
// Core Kotlin libs
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
// Core Ktor libs
def withoutKotlin = {
exclude group: 'org.jetbrains.kotlin', module: 'kotlin-stdlib-jdk8'
exclude group: 'org.jetbrains.kotlin', module: 'kotlin-stdlib-jdk7'
exclude group: 'org.jetbrains.kotlin', module: 'kotlin-reflect'
exclude group: 'org.jetbrains.kotlin', module: 'kotlin-stdlib-jre8'
exclude group: 'org.jetbrains.kotlin', module: 'kotlin-stdlib-jre7'
}
implementation "io.ktor:ktor-server-core:$ktorVersion", withoutKotlin
implementation "io.ktor:ktor-server-netty:$ktorVersion", withoutKotlin
implementation "io.ktor:ktor-freemarker:$ktorVersion", withoutKotlin
implementation "io.ktor:ktor-locations:$ktorVersion", withoutKotlin
.... More dependencies
}
最佳答案
将以下内容添加到您的 Gradle 构建脚本中:
import com.github.jengelman.gradle.plugins.shadow.transformers.ServiceFileTransformer
shadowJar {
transform(ServiceFileTransformer) {
path = 'META-INF/services'
include 'org.eclipse.jetty.http.HttpFieldPreEncoder'
}
}
我最终发现 shadowJar 默认情况下没有将我的“META-INF”文件合并在一起。这是一个问题,因为当 Jetty 服务器启动时,它会引用“META-INF/services/org.eclipse.jetty.http.HttpFieldPreEncoder”来加载正确的 HttpField 编码器。由于我的服务文件没有正确合并,所以只加载了 Http2 编码器。这反过来导致 JVM 在 Jetty 尝试静态初始化 PreEncodedHttpField 时抛出 java.lang.ExceptionInInitializerError 错误,进而导致 Jetty 的 HttpConnection 中出现 NoClassDefError
关于java - 尝试通过嵌入式 Jetty 服务器运行 Ktor 应用程序时如何避免 java.lang.ExceptionInInitializerError?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/48636944/
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好的,今天我在接受采访,我已经编写 Java 代码多年了。采访中说“Java 垃圾收集是一个棘手的问题,我有几个 friend 一直在努力弄清楚。你在这方面做得怎么样?”。她是想骗我吗?还是我的一生都
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有这样的标准方式吗? 包括 Java源代码-测试代码- Ant 或 Maven联合单元持续集成(可能是巡航控制)ClearCase 版本控制工具部署到应用服务器 最后我希望有一个自动构建和集成环境。
我什至不知道这是否可能,我非常怀疑它是否可能,但如果可以,您能告诉我怎么做吗?我只是想知道如何从打印机打印一些文本。 有什么想法吗? 最佳答案 这里有更简单的事情。 import javax.swin
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