ERROR: Failed to parse POMs java.io.IOException: Remote call on Channel to Maven [C:\apps\Java\jdk1.5.0_22/bin/java, -Xmx1024m, -XX:MaxPermSize=256m, -Dfile.encoding=UTF-8, -cp, D:\jenkins\plugins\maven-plugin\WEB-INF\lib\maven-agent-1.2.jar;C:\apps\maven\maven-2.2.1\boot\classworlds-1.1.jar, hudson.maven.agent.Main, C:\apps\maven\maven-2.2.1, C:\apps\tomcat\Tomcat 7.0\webapps\jenkins\WEB-INF\lib\remoting-2.13.jar, D:\jenkins\plugins\maven-plugin\WEB-INF\lib\maven-interceptor-1.2.jar, 61314, D:\jenkins\plugins\maven-plugin\WEB-INF\lib\maven2.1-interceptor-1.2.jar] failed at hudson.remoting.Channel.call(Channel.java:655) at hudson.maven.ProcessCache$MavenProcess.call(ProcessCache.java:156) at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:791) at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:499) at hudson.model.Run.execute(Run.java:1484) at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:477) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:236) Caused by: java.lang.ClassFormatError: Failed to load org.kohsuke.stapler.Stapler at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:154) at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:131) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) at hudson.model.Result.(Result.java:191) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:164) at $Proxy2.(Unknown Source) at sun.reflect.GeneratedSerializationConstructorAccessor40.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Constructor.java:501) at java.io.ObjectStreamClass.newInstance(ObjectStreamClass.java:896) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1704) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1910) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1834) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) at java.util.HashMap.readObject(HashMap.java:1067) 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:592) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:946) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1812) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1910) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1834) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) at hudson.remoting.UserRequest.deserialize(UserRequest.java:182) at hudson.remoting.UserRequest.perform(UserRequest.java:98) at hudson.remoting.UserRequest.perform(UserRequest.java:48) at hudson.remoting.Request$2.run(Request.java:287) at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269) at java.util.concurrent.FutureTask.run(FutureTask.java:123) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:651) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:676) at java.lang.Thread.run(Thread.java:595) Caused by: java.lang.ClassFormatError: Failed to load javax.servlet.http.HttpServlet at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:154) at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:131) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:621) at java.lang.ClassLoader.defineClass(ClassLoader.java:466) at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:152) ... 42 more Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class file at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:621) at java.lang.ClassLoader.defineClass(ClassLoader.java:466) at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:152)