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我閱讀關於JAK implementation的頁面，其中是來自pom.xml文件（Listing 1）的一段代碼。這段代碼實際上是在pom.xml文件中註釋的，所以我取消註釋以添加自己的模式進行編譯。之後，我運行命令mvn -e乾淨安裝，我得到這個錯誤：JAXB + JAK java.lang.ClassCastException
ivansek ~/Sites/Xlab/KMLTest/javaapiforkml-read-only $ mvn -e clean install
+ Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building a Java API for Kml
[INFO] task-segment: [clean, install]
[INFO] ------------------------------------------------------------------------
[INFO] [clean:clean {execution: default-clean}]
[INFO] [antrun:run {execution: xjc-invocation}]
[INFO] Executing tasks
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] An Ant BuildException has occured: java.util.ServiceConfigurationError: com.sun.tools.xjc.Plugin: Provider org.jvnet.jaxb2_commons.javaforkmlapi.XJCJavaForKmlApiPlugin could not be instantiated: java.lang.ClassCastException
[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.lifecycle.LifecycleExecutionException: An Ant BuildException has occured: java.util.ServiceConfigurationError: com.sun.tools.xjc.Plugin: Provider org.jvnet.jaxb2_commons.javaforkmlapi.XJCJavaForKmlApiPlugin could not be instantiated: java.lang.ClassCastException
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:719)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.plugin.MojoExecutionException: An Ant BuildException has occured: java.util.ServiceConfigurationError: com.sun.tools.xjc.Plugin: Provider org.jvnet.jaxb2_commons.javaforkmlapi.XJCJavaForKmlApiPlugin could not be instantiated: java.lang.ClassCastException
at org.apache.maven.plugin.antrun.AbstractAntMojo.executeTasks(AbstractAntMojo.java:131)
at org.apache.maven.plugin.antrun.AntRunMojo.execute(AntRunMojo.java:98)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
... 17 more
Caused by: java.util.ServiceConfigurationError: com.sun.tools.xjc.Plugin: Provider org.jvnet.jaxb2_commons.javaforkmlapi.XJCJavaForKmlApiPlugin could not be instantiated: java.lang.ClassCastException
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:116)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.maven.plugin.antrun.AbstractAntMojo.executeTasks(AbstractAntMojo.java:118)
... 20 more
Caused by: java.util.ServiceConfigurationError: com.sun.tools.xjc.Plugin: Provider org.jvnet.jaxb2_commons.javaforkmlapi.XJCJavaForKmlApiPlugin could not be instantiated: java.lang.ClassCastException
at java.util.ServiceLoader.fail(ServiceLoader.java:207)
at java.util.ServiceLoader.access$100(ServiceLoader.java:164)
at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:353)
at java.util.ServiceLoader$1.next(ServiceLoader.java:421)
at com.sun.tools.xjc.Options.findServices(Options.java:910)
at com.sun.tools.xjc.Options.getAllPlugins(Options.java:351)
at com.sun.tools.xjc.Options.parseArgument(Options.java:650)
at com.sun.tools.xjc.Options.parseArguments(Options.java:760)
at com.sun.tools.xjc.XJC2Task._doXJC(XJC2Task.java:453)
at com.sun.tools.xjc.XJC2Task.doXJC(XJC2Task.java:443)
at com.sun.tools.xjc.XJC2Task.execute(XJC2Task.java:369)
at com.sun.istack.tools.ProtectedTask.execute(ProtectedTask.java:55)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
... 23 more
Caused by: java.lang.ClassCastException
at java.lang.Class.cast(Class.java:2990)
at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:345)
... 38 more
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3 seconds
[INFO] Finished at: Thu May 13 09:53:19 CEST 2010
[INFO] Final Memory: 16M/79M
[INFO] ------------------------------------------------------------------------
有什麼建議嗎？
此版本問題的一個很好的解決方法可以在這裏找到：http://confluence.highsource.org/display/J2B/JAXB2+Basics+XJC+Ant+Task – 2012-12-27 16:03:24