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java.lang.IllegalArgumentException: Too many children	at org.jboss.portal.common.util.XML.getSingleChild(XML.java:186)	at org.jboss.portal.portlet.deployment.builder.PortletBuilder.buildPortletMetaData(PortletBuilder.java:229)	at org.jboss.portal.portlet.deployment.builder.PortletBuilder.build(PortletBuilder.java:150)	at org.jboss.portal.core.deployment.builder.CorePortletBuilder.build(CorePortletBuilder.java:42)	at org.jboss.portal.server.deployment.SimpleDeploymentReactor.build(SimpleDeploymentReactor.java:127)	at org.jboss.portal.server.deployment.SimpleDeploymentReactor.build(SimpleDeploymentReactor.java:134)	at org.jboss.portal.server.deployment.SimpleDeploymentReactor.build(SimpleDeploymentReactor.java:134)	at org.jboss.portal.server.deployment.SimpleDeploymentReactor.process(SimpleDeploymentReactor.java:101)	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:324)	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:144)	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)	at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:122)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)	at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:131)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)	at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)	at $Proxy35.process(Unknown Source)	at org.jboss.portal.server.deployment.WebAppAdapter.deploy(WebAppAdapter.java:49)	at org.jboss.portal.server.deployment.WebAppIntercepter.startService(WebAppIntercepter.java:193)	at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:272)	at org.jboss.system.ServiceMBeanSupport.start(ServiceMBeanSupport.java:173)	at org.jboss.portal.server.util.Service.start(Service.java:73)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:144)	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)	at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:122)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)	at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:131)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)	at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:908)	at $Proxy0.start(Unknown Source)	at org.jboss.system.ServiceController.start(ServiceController.java:416)	at org.jboss.system.ServiceController.start(ServiceController.java:438)	at org.jboss.system.ServiceController.start(ServiceController.java:438)	at org.jboss.system.ServiceController.start(ServiceController.java:438)	at org.jboss.system.ServiceController.start(ServiceController.java:438)	at org.jboss.system.ServiceController.start(ServiceController.java:438)	at org.jboss.system.ServiceController.start(ServiceController.java:438)	at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:144)	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)	at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)	at $Proxy4.start(Unknown Source)	at org.jboss.deployment.SARDeployer.start(SARDeployer.java:261)	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:324)	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:144)	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)	at org.jboss.mx.util.JMXInvocationHandler.invoke(JMXInvocationHandler.java:272)	at $Proxy55.start(Unknown Source)	at org.jboss.deployment.XSLSubDeployer.start(XSLSubDeployer.java:228)	at org.jboss.deployment.MainDeployer.start(MainDeployer.java:964)	at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:775)	at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:738)	at sun.reflect.GeneratedMethodAccessor68.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:144)	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)	at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:122)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)	at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:131)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)	at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)	at $Proxy8.deploy(Unknown Source)	at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:305)	at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:481)	at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:204)	at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:277)	at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:272)	at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:222)	at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:144)	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)	at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:891)	at $Proxy0.start(Unknown Source)	at org.jboss.system.ServiceController.start(ServiceController.java:416)	at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:144)	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)	at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)	at $Proxy4.start(Unknown Source)	at org.jboss.deployment.SARDeployer.start(SARDeployer.java:261)	at org.jboss.deployment.MainDeployer.start(MainDeployer.java:964)	at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:775)	at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:738)	at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:722)	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:324)	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:144)	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)	at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:122)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)	at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:131)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)	at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)	at $Proxy5.deploy(Unknown Source)	at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:413)	at org.jboss.system.server.ServerImpl.start(ServerImpl.java:310)	at org.jboss.Main.boot(Main.java:162)	at org.jboss.Main$1.run(Main.java:423)	at java.lang.Thread.run(Thread.java:534)