java.lang.NoClassDefFoundError: org/eclipse/jetty/server/nio/SelectChannelConnector 使用 com.j256.simplejmx.web.JmxWebServer
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java.lang.NoClassDefFoundError: org/eclipse/jetty/server/nio/SelectChannelConnector using com.j256.simplejmx.web.JmxWebServer
提问by ruhungry
I am trying to implement simple JMX Client/Serverusing com.j256.simplejmx. I want to spy my objects using Web Browser. I copied a really simple piece of code:
我想实现简单的JMX客户端/服务器使用com.j256.simplejmx。我想使用 Web 浏览器监视我的对象。我复制了一段非常简单的代码：
package com.my.package.jmx;
import com.j256.simplejmx.web.JmxWebServer;
public class JMXServer {
public static void main(String[] args) throws Exception {
JmxWebServer jmxWebServer = new JmxWebServer(8123);
jmxWebServer.start();
}
}
When I run it I have got an exception:
当我运行它时，我有一个例外：
Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/jetty/util/thread/ThreadPool
at com.my.package.jmx.JMXServer.main(JMXServer.java:9)
Caused by: java.lang.ClassNotFoundException: org.eclipse.jetty.util.thread.ThreadPool
at java.net.URLClassLoader.run(Unknown Source)
at java.net.URLClassLoader.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 1 more
I added this to my pom.xml:
我将此添加到我的pom.xml：
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-util</artifactId>
<version>9.1.3.v20140225</version>
</dependency>
I run it once again and I have got an another excpetion:
我再次运行它，我得到了另一个异常：
Ex
前任
ception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/jetty/server/AbstractConnector
at com.my.package.jmx.JMXServer.main(JMXServer.java:9)
Caused by: java.lang.ClassNotFoundException: org.eclipse.jetty.server.AbstractConnector
at java.net.URLClassLoader.run(Unknown Source)
at java.net.URLClassLoader.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 1 more
So once again, I update my pom.xml:
所以再次更新我的 pom.xml：
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-server</artifactId>
<version>9.1.3.v20140225</version>
</dependency>
And it gives me an error once again:
它再次给我一个错误：
Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/jetty/server/nio/SelectChannelConnector
at com.mu.package.jmx.JMXServer.main(JMXServer.java:9)
Caused by: java.lang.ClassNotFoundException: org.eclipse.jetty.server.nio.SelectChannelConnector
at java.net.URLClassLoader.run(Unknown Source)
at java.net.URLClassLoader.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 1 more
and I cannot find any solution for that. What else I should add to my pom.xmlfile? Maybe it is an issue with versions of dependencies?
我找不到任何解决方案。我还应该在我的pom.xml文件中添加什么？也许这是依赖版本的问题？
Thank you in advance.
先感谢您。
I edited my pom.xml
我编辑了我的pom.xml
<project...>
<properties>
<jetty-version>8.1.9.v20130131</jetty-version>
</properties>
<dependencies>
<dependency>
<groupId>com.j256.simplejmx</groupId>
<artifactId>simplejmx</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-util</artifactId>
<version>${jetty-version}</version>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-server</artifactId>
<version>${jetty-version}</version>
<optional>true</optional>
</dependency>
</dependencies>
</project>
Now, I can run this server:
现在，我可以运行这个服务器：
INFO Server - jetty-8.1.9.v20130131
INFO AbstractConnector - Started [email protected]:8123
but when I go to my Web Browser and I put:
但是当我进入我的网络浏览器并输入：
localhost:8123
it thows an exception:
它抛出一个异常：
WARN nio -
java.lang.SecurityException: class "javax.servlet.AsyncContext"'s signer information does not match signer information of other classes in the same package
at java.lang.ClassLoader.checkCerts(Unknown Source)
at java.lang.ClassLoader.preDefineClass(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access0(Unknown Source)
at java.net.URLClassLoader.run(Unknown Source)
at java.net.URLClassLoader.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.eclipse.jetty.server.AbstractHttpConnection.<init>(AbstractHttpConnection.java:157)
at org.eclipse.jetty.server.AsyncHttpConnection.<init>(AsyncHttpConnection.java:50)
at org.eclipse.jetty.server.nio.SelectChannelConnector.newConnection(SelectChannelConnector.java:285)
at org.eclipse.jetty.server.nio.SelectChannelConnector$ConnectorSelectorManager.newConnection(SelectChannelConnector.java:325)
at org.eclipse.jetty.server.nio.SelectChannelConnector.newEndPoint(SelectChannelConnector.java:272)
at org.eclipse.jetty.server.nio.SelectChannelConnector$ConnectorSelectorManager.newEndPoint(SelectChannelConnector.java:331)
at org.eclipse.jetty.io.nio.SelectorManager$SelectSet.createEndPoint(SelectorManager.java:841)
at org.eclipse.jetty.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:496)
at org.eclipse.jetty.io.nio.SelectorManager.run(SelectorManager.java:290)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Unknown Source)
采纳答案by Gray
Caused by: java.lang.ClassNotFoundException: org.eclipse.jetty.server.nio.SelectChannelConnector
引起：java.lang.ClassNotFoundException：org.eclipse.jetty.server.nio.SelectChannelConnector
So right now SimpleJMXhas an optional dependency for 8.1.9.v20130131 Jetty to support publishing JMX over web/HTTP. If you check out the pom.xml you'll see:
所以现在SimpleJMX有一个可选的 8.1.9.v20130131 Jetty 依赖项来支持通过 web/HTTP 发布 JMX。如果您查看 pom.xml，您将看到：
<jetty-version>8.1.9.v20130131</jetty-version>
...
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-server</artifactId>
<version>${jetty-version}</version>
<optional>true</optional>
</dependency>
Can you try this version of Jetty? I'm not sure there is a way for me to support both 8.X.X and 9.X.X but I'll look into it.
你可以试试这个版本的Jetty吗？我不确定是否有办法同时支持 8.XX 和 9.XX，但我会研究一下。
