Question

在从属实例上运行Maven2作业时（AIX 5.3上的Master; Windows 2008（R2）上的slave），我收到以下消息（下面粘贴完整的堆栈跟踪）：“java.lang.ClassNotFoundException：Classloading from系统类加载器禁用“。这种情况发生在从属实例启动后的第一个作业（它作为Windows服务运行）。之后，我得到一个“java.lang.NoClassDefFoundError：无法初始化类hudson.maven.MavenModuleSetBuild”错误。

如果我创建了一个自由式作业，并将maven命令作为批处理命令包含在奴隶上运行，那么它可以正常工作。 Maven2作业似乎将Maven定位在从机上，但它显然找不到maven-plugin（可能是由于类加载错误）。

我搜索过并向jenkins-ci网站发了一张票，但到目前为止还没有运气。有人遇到过这个问题吗？

Stacktrace:
Found mavenVersion 2.2.1 from file jar:file:/C:/apache-maven-2.2.1/lib/maven-2.2.1-uber.jar!/META-INF/maven/org.apache.maven/maven-core/pom.properties
Parsing POMs
ERROR: Failed to parse POMs
hudson.util.IOException2: remote file operation failed: c:\jenkins-slave\workspace\AO_SISO_AT-smoketest-CIT1 at hudson.remoting.Channel@7b827b82:10.40.163.105
    at hudson.FilePath.act(FilePath.java:752)
    at hudson.FilePath.act(FilePath.java:738)
    at hudson.maven.MavenModuleSetBuild$RunnerImpl.parsePoms(MavenModuleSetBuild.java:817)
    at hudson.maven.MavenModuleSetBuild$RunnerImpl.doRun(MavenModuleSetBuild.java:617)
    at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:429)
    at hudson.model.Run.run(Run.java:1374)
    at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:467)
    at hudson.model.ResourceController.execute(ResourceController.java:88)
    at hudson.model.Executor.run(Executor.java:145)
Caused by: java.io.IOException: Remote call on 10.40.163.105 failed
    at hudson.remoting.Channel.call(Channel.java:652)
    at hudson.FilePath.act(FilePath.java:745)
    ... 8 more
Caused by: java.lang.ExceptionInInitializerError
    at hudson.maven.MavenModuleSetBuild$PomParser.invoke(MavenModuleSetBuild.java:1236)
    at hudson.maven.MavenModuleSetBuild$PomParser.invoke(MavenModuleSetBuild.java:1110)
    at hudson.FilePath$FileCallableWrapper.call(FilePath.java:1956)
    at hudson.remoting.UserRequest.perform(UserRequest.java:118)
    at hudson.remoting.UserRequest.perform(UserRequest.java:48)
    at hudson.remoting.Request$2.run(Request.java:270)
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at hudson.remoting.Engine$1$1.run(Engine.java:60)
    at java.lang.Thread.run(Unknown Source)
Caused by: com.thoughtworks.xstream.XStream$InitializationException: Could not instantiate converter : com.thoughtworks.xstream.converters.extended.DurationConverter : null
    at com.thoughtworks.xstream.XStream.dynamicallyRegisterConverter(XStream.java:735)
    at com.thoughtworks.xstream.XStream.setupConverters(XStream.java:699)
    at com.thoughtworks.xstream.XStream.<init>(XStream.java:445)
    at com.thoughtworks.xstream.XStream.<init>(XStream.java:385)
    at com.thoughtworks.xstream.XStream.<init>(XStream.java:323)
    at hudson.util.XStream2.<init>(XStream2.java:62)
    at hudson.model.Run.<clinit>(Run.java:1867)
    ... 13 more
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at com.thoughtworks.xstream.XStream.dynamicallyRegisterConverter(XStream.java:728)
    ... 19 more
Caused by: javax.xml.datatype.DatatypeConfigurationException: Provider org.apache.xerces.jaxp.datatype.DatatypeFactoryImpl not found
    at javax.xml.datatype.DatatypeFactory.newInstance(Unknown Source)
    at com.thoughtworks.xstream.converters.extended.DurationConverter.<init>(DurationConverter.java:33)
    ... 24 more
Caused by: java.lang.ClassNotFoundException: Classloading from system classloader disabled
    at java.lang.Throwable.<init>(Throwable.java:56)
    at java.lang.Throwable.<init>(Throwable.java:80)
    at java.lang.ClassNotFoundException.<init>(ClassNotFoundException.java:80)
    at hudson.remoting.RemoteClassLoader$ClassLoaderProxy.fetch2(RemoteClassLoader.java:399)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:615)
    at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:274)
    at hudson.remoting.Request$2.run(Request.java:270)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:432)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:284)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:665)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:690)
    at java.lang.Thread.run(Thread.java:799)

Answer 1

我有类似的问题。研究互联网但没有得到任何解决方案。最后调试了jenkins / hudson并解决了这个问题。

此错误的根本原因是最近版本的jenkin随jenkins.war文件中的xml解析器一起提供。看起来如果你的服务器已经有了这个jar文件，它就不会让jenkin应用程序重新加载自己版本的xml解析器。因此，要解决此问题，我已从jenkins.war文件的WEB-INF / lib目录中删除了文件xercesImpl-2.9.1.jar。之后替换现有的war文件并重新启动服务器。它没有任何问题。

Jenkins slave抛出“从系统类加载器禁用类加载”异常

1 个答案: