Error occurred in portlet!

EXCEPTION:
javax.portlet.PortletException
	at org.apache.pluto.core.impl.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:76)
	at com.finalist.cmsc.portlets.CmscPortlet.doInclude(CmscPortlet.java:548)
	at com.finalist.cmsc.portlets.CmscPortlet.doView(CmscPortlet.java:466)
	at com.finalist.cmsc.portlets.AbstractContentPortlet.doView(AbstractContentPortlet.java:289)
	at com.finalist.cmsc.portlets.ContentChannelPortlet.doView(ContentChannelPortlet.java:110)
	at com.finalist.cmsc.portlets.CmscPortlet.doDispatch(CmscPortlet.java:277)
	at javax.portlet.GenericPortlet.render(GenericPortlet.java:175)
	at com.finalist.cmsc.portalImpl.PortletServlet.dispatch(PortletServlet.java:136)
	at com.finalist.cmsc.portalImpl.PortletServlet.doGet(PortletServlet.java:96)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:548)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:497)
	at com.finalist.pluto.container.invoker.impl.PortletInvokerImpl.invoke(PortletInvokerImpl.java:103)
	at com.finalist.pluto.container.invoker.impl.PortletInvokerImpl.render(PortletInvokerImpl.java:68)
	at org.apache.pluto.PortletContainerImpl.renderPortlet(PortletContainerImpl.java:119)
	at com.finalist.pluto.portalImpl.core.PortletContainerWrapperImpl.renderPortlet(PortletContainerWrapperImpl.java:53)
	at com.finalist.pluto.portalImpl.aggregation.PortletFragment.service(PortletFragment.java:270)
	at com.finalist.pluto.portalImpl.aggregation.ScreenFragment.service(ScreenFragment.java:57)
	at com.finalist.cmsc.portalImpl.PageNavigationRenderer.render(PageNavigationRenderer.java:67)
	at com.finalist.cmsc.portalImpl.PortalServlet.doRender(PortalServlet.java:199)
	at com.finalist.cmsc.portalImpl.PortalServlet.processRenderPhase(PortalServlet.java:176)
	at com.finalist.cmsc.portalImpl.PortalServlet.service(PortalServlet.java:148)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:364)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
	at com.finalist.cmsc.filters.FriendlyUrlFilter.doFilter(FriendlyUrlFilter.java:102)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.mmbase.servlet.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:149)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at net.sf.mmapps.commons.web.CloudThreadFilter.doFilter(CloudThreadFilter.java:33)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at com.finalist.cmsc.filters.DisableUrlSessionFilter.doFilter(DisableUrlSessionFilter.java:103)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
	at java.lang.Thread.run(Unknown Source)
Caused by: org.mmbase.bridge.NotFoundException: Something went wrong while getting node with number '': Node not found !! (key = '') by cloud with account U-490385
	at org.mmbase.bridge.implementation.BasicCloud.getNode(BasicCloud.java:231)
	at org.mmbase.bridge.jsp.taglib.NodeTag.doStartTag(NodeTag.java:151)
	at org.apache.jsp.WEB_002dINF.templates.view.sinomachfair.exhibitionNewsBar_jsp._jspx_meth_mm_005fnode_005f0(exhibitionNewsBar_jsp.java:535)
	at org.apache.jsp.WEB_002dINF.templates.view.sinomachfair.exhibitionNewsBar_jsp._jspService(exhibitionNewsBar_jsp.java:190)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:584)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:497)
	at org.apache.pluto.core.impl.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:65)
	... 56 more
Caused by: java.lang.RuntimeException: Node not found !! (key = '')
	at org.mmbase.module.core.TemporaryNodeManager.getNode(TemporaryNodeManager.java:126)
	at org.mmbase.bridge.implementation.BasicCloud.getNode(BasicCloud.java:229)
	... 71 more

Nested Exception is org.mmbase.bridge.NotFoundException: Something went wrong while getting node with number '': Node not found !! (key = '') by cloud with account U-490385
	at org.mmbase.bridge.implementation.BasicCloud.getNode(BasicCloud.java:231)
	at org.mmbase.bridge.jsp.taglib.NodeTag.doStartTag(NodeTag.java:151)
	at org.apache.jsp.WEB_002dINF.templates.view.sinomachfair.exhibitionNewsBar_jsp._jspx_meth_mm_005fnode_005f0(exhibitionNewsBar_jsp.java:535)
	at org.apache.jsp.WEB_002dINF.templates.view.sinomachfair.exhibitionNewsBar_jsp._jspService(exhibitionNewsBar_jsp.java:190)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:584)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:497)
	at org.apache.pluto.core.impl.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:65)
	at com.finalist.cmsc.portlets.CmscPortlet.doInclude(CmscPortlet.java:548)
	at com.finalist.cmsc.portlets.CmscPortlet.doView(CmscPortlet.java:466)
	at com.finalist.cmsc.portlets.AbstractContentPortlet.doView(AbstractContentPortlet.java:289)
	at com.finalist.cmsc.portlets.ContentChannelPortlet.doView(ContentChannelPortlet.java:110)
	at com.finalist.cmsc.portlets.CmscPortlet.doDispatch(CmscPortlet.java:277)
	at javax.portlet.GenericPortlet.render(GenericPortlet.java:175)
	at com.finalist.cmsc.portalImpl.PortletServlet.dispatch(PortletServlet.java:136)
	at com.finalist.cmsc.portalImpl.PortletServlet.doGet(PortletServlet.java:96)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:548)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:497)
	at com.finalist.pluto.container.invoker.impl.PortletInvokerImpl.invoke(PortletInvokerImpl.java:103)
	at com.finalist.pluto.container.invoker.impl.PortletInvokerImpl.render(PortletInvokerImpl.java:68)
	at org.apache.pluto.PortletContainerImpl.renderPortlet(PortletContainerImpl.java:119)
	at com.finalist.pluto.portalImpl.core.PortletContainerWrapperImpl.renderPortlet(PortletContainerWrapperImpl.java:53)
	at com.finalist.pluto.portalImpl.aggregation.PortletFragment.service(PortletFragment.java:270)
	at com.finalist.pluto.portalImpl.aggregation.ScreenFragment.service(ScreenFragment.java:57)
	at com.finalist.cmsc.portalImpl.PageNavigationRenderer.render(PageNavigationRenderer.java:67)
	at com.finalist.cmsc.portalImpl.PortalServlet.doRender(PortalServlet.java:199)
	at com.finalist.cmsc.portalImpl.PortalServlet.processRenderPhase(PortalServlet.java:176)
	at com.finalist.cmsc.portalImpl.PortalServlet.service(PortalServlet.java:148)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:364)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
	at com.finalist.cmsc.filters.FriendlyUrlFilter.doFilter(FriendlyUrlFilter.java:102)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.mmbase.servlet.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:149)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at net.sf.mmapps.commons.web.CloudThreadFilter.doFilter(CloudThreadFilter.java:33)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at com.finalist.cmsc.filters.DisableUrlSessionFilter.doFilter(DisableUrlSessionFilter.java:103)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Node not found !! (key = '')
	at org.mmbase.module.core.TemporaryNodeManager.getNode(TemporaryNodeManager.java:126)
	at org.mmbase.bridge.implementation.BasicCloud.getNode(BasicCloud.java:229)
	... 71 more

Cause:
org.mmbase.bridge.NotFoundException: Something went wrong while getting node with number '': Node not found !! (key = '') by cloud with account U-490385
	at org.mmbase.bridge.implementation.BasicCloud.getNode(BasicCloud.java:231)
	at org.mmbase.bridge.jsp.taglib.NodeTag.doStartTag(NodeTag.java:151)
	at org.apache.jsp.WEB_002dINF.templates.view.sinomachfair.exhibitionNewsBar_jsp._jspx_meth_mm_005fnode_005f0(exhibitionNewsBar_jsp.java:535)
	at org.apache.jsp.WEB_002dINF.templates.view.sinomachfair.exhibitionNewsBar_jsp._jspService(exhibitionNewsBar_jsp.java:190)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:584)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:497)
	at org.apache.pluto.core.impl.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:65)
	at com.finalist.cmsc.portlets.CmscPortlet.doInclude(CmscPortlet.java:548)
	at com.finalist.cmsc.portlets.CmscPortlet.doView(CmscPortlet.java:466)
	at com.finalist.cmsc.portlets.AbstractContentPortlet.doView(AbstractContentPortlet.java:289)
	at com.finalist.cmsc.portlets.ContentChannelPortlet.doView(ContentChannelPortlet.java:110)
	at com.finalist.cmsc.portlets.CmscPortlet.doDispatch(CmscPortlet.java:277)
	at javax.portlet.GenericPortlet.render(GenericPortlet.java:175)
	at com.finalist.cmsc.portalImpl.PortletServlet.dispatch(PortletServlet.java:136)
	at com.finalist.cmsc.portalImpl.PortletServlet.doGet(PortletServlet.java:96)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:548)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:497)
	at com.finalist.pluto.container.invoker.impl.PortletInvokerImpl.invoke(PortletInvokerImpl.java:103)
	at com.finalist.pluto.container.invoker.impl.PortletInvokerImpl.render(PortletInvokerImpl.java:68)
	at org.apache.pluto.PortletContainerImpl.renderPortlet(PortletContainerImpl.java:119)
	at com.finalist.pluto.portalImpl.core.PortletContainerWrapperImpl.renderPortlet(PortletContainerWrapperImpl.java:53)
	at com.finalist.pluto.portalImpl.aggregation.PortletFragment.service(PortletFragment.java:270)
	at com.finalist.pluto.portalImpl.aggregation.ScreenFragment.service(ScreenFragment.java:57)
	at com.finalist.cmsc.portalImpl.PageNavigationRenderer.render(PageNavigationRenderer.java:67)
	at com.finalist.cmsc.portalImpl.PortalServlet.doRender(PortalServlet.java:199)
	at com.finalist.cmsc.portalImpl.PortalServlet.processRenderPhase(PortalServlet.java:176)
	at com.finalist.cmsc.portalImpl.PortalServlet.service(PortalServlet.java:148)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:364)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
	at com.finalist.cmsc.filters.FriendlyUrlFilter.doFilter(FriendlyUrlFilter.java:102)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.mmbase.servlet.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:149)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at net.sf.mmapps.commons.web.CloudThreadFilter.doFilter(CloudThreadFilter.java:33)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at com.finalist.cmsc.filters.DisableUrlSessionFilter.doFilter(DisableUrlSessionFilter.java:103)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Node not found !! (key = '')
	at org.mmbase.module.core.TemporaryNodeManager.getNode(TemporaryNodeManager.java:126)
	at org.mmbase.bridge.implementation.BasicCloud.getNode(BasicCloud.java:229)
	... 71 more

Cause:
java.lang.RuntimeException: Node not found !! (key = '')
	at org.mmbase.module.core.TemporaryNodeManager.getNode(TemporaryNodeManager.java:126)
	at org.mmbase.bridge.implementation.BasicCloud.getNode(BasicCloud.java:229)
	at org.mmbase.bridge.jsp.taglib.NodeTag.doStartTag(NodeTag.java:151)
	at org.apache.jsp.WEB_002dINF.templates.view.sinomachfair.exhibitionNewsBar_jsp._jspx_meth_mm_005fnode_005f0(exhibitionNewsBar_jsp.java:535)
	at org.apache.jsp.WEB_002dINF.templates.view.sinomachfair.exhibitionNewsBar_jsp._jspService(exhibitionNewsBar_jsp.java:190)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:584)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:497)
	at org.apache.pluto.core.impl.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:65)
	at com.finalist.cmsc.portlets.CmscPortlet.doInclude(CmscPortlet.java:548)
	at com.finalist.cmsc.portlets.CmscPortlet.doView(CmscPortlet.java:466)
	at com.finalist.cmsc.portlets.AbstractContentPortlet.doView(AbstractContentPortlet.java:289)
	at com.finalist.cmsc.portlets.ContentChannelPortlet.doView(ContentChannelPortlet.java:110)
	at com.finalist.cmsc.portlets.CmscPortlet.doDispatch(CmscPortlet.java:277)
	at javax.portlet.GenericPortlet.render(GenericPortlet.java:175)
	at com.finalist.cmsc.portalImpl.PortletServlet.dispatch(PortletServlet.java:136)
	at com.finalist.cmsc.portalImpl.PortletServlet.doGet(PortletServlet.java:96)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:548)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:497)
	at com.finalist.pluto.container.invoker.impl.PortletInvokerImpl.invoke(PortletInvokerImpl.java:103)
	at com.finalist.pluto.container.invoker.impl.PortletInvokerImpl.render(PortletInvokerImpl.java:68)
	at org.apache.pluto.PortletContainerImpl.renderPortlet(PortletContainerImpl.java:119)
	at com.finalist.pluto.portalImpl.core.PortletContainerWrapperImpl.renderPortlet(PortletContainerWrapperImpl.java:53)
	at com.finalist.pluto.portalImpl.aggregation.PortletFragment.service(PortletFragment.java:270)
	at com.finalist.pluto.portalImpl.aggregation.ScreenFragment.service(ScreenFragment.java:57)
	at com.finalist.cmsc.portalImpl.PageNavigationRenderer.render(PageNavigationRenderer.java:67)
	at com.finalist.cmsc.portalImpl.PortalServlet.doRender(PortalServlet.java:199)
	at com.finalist.cmsc.portalImpl.PortalServlet.processRenderPhase(PortalServlet.java:176)
	at com.finalist.cmsc.portalImpl.PortalServlet.service(PortalServlet.java:148)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:364)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
	at com.finalist.cmsc.filters.FriendlyUrlFilter.doFilter(FriendlyUrlFilter.java:102)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.mmbase.servlet.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:149)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at net.sf.mmapps.commons.web.CloudThreadFilter.doFilter(CloudThreadFilter.java:33)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at com.finalist.cmsc.filters.DisableUrlSessionFilter.doFilter(DisableUrlSessionFilter.java:103)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
	at java.lang.Thread.run(Unknown Source)

门窗幕墙挑战严峻 国际市场仍蕴藏机遇

2009.03.25

来源:中国建设报


随着近几年来我国建筑业的蓬勃发展,铝合金门窗的产量不断增加,据铝门窗幕墙委员会统计,2003年我国的铝合金门窗产量为2.8亿平方米,2005年 3.2亿平方米,2007年为3.65亿平方米。中国是名副其实的门窗生产大国。随着建筑节能政策的实施,建筑节能产品已经在建筑工程中广泛推广使用。

据中国建筑金属结构协会一位专家介绍,目前我国的严寒地区、寒冷地区、部分夏热冬冷地区的铝合金门窗都要使用铝合金节能门窗。铝 合金门窗隔热铝型材的断桥技术主要是两种:一种是穿条式铝合金隔热技术,另一种是浇注式隔热技术,其中穿条式隔热技术约占我国铝合金隔热门窗的80%左 右。

2008年下半年爆发了全球性金融危机,在这样的经济背景下,铝门窗幕墙行业面临着十分严峻和复杂的形势,但也要看到 当前我国仍处于重要战略机遇期,保持经济平稳较快发展,具备许多有利条件和积极因素。一是综合国力强大,应对各种风险和危机奠定了坚实的经济基础。二是内 需潜力巨大,蕴藏着扩大内需的广阔空间,特别是今后几年我国将在铁路、航空、交通、建筑领域加大政府产业投资力度。三是政府调控能力和水平在实践中不断提 高,务实的经济政策符合民意。四是人力资源充裕,劳动力素质逐年提高,科教治国的基本方针深入各行各业,技术进步加快,产业竞争力增强,企业具有了全球参 与意识。五是经济全球化和技术革命的趋势没有改变,国际环境依然蕴藏机遇,特别是中国在东南亚、中东地区、非洲地区的发展潜力巨大。

一 位业内人士告诉记者,穿条式隔热铝合金断桥技术在铝合金门窗上的应用最先在欧洲使用,上世纪70年代开始用在铝合金节能门窗,其后几年节能保温的门窗幕墙 全面普及,目前已经广泛应用在铝合金节能门窗、建筑幕墙中。隔热条的主要材料是PA材料,尼龙66加25%%的玻璃纤维。也有些企业根据工程需要增加玻璃 纤维的用料。但是在欧洲,PVC塑料、PT工程塑料产品是不能作为铝合金隔热条使用的。


我国大约于2002年开始 逐步生产铝合金隔热型材,开始使用欧洲进口的隔热条产品。2005年协会组织起草编写了《建筑用硬质塑料隔热条》、《建筑用隔热铝合金型材穿条式》两项行 业标准。2006年国家全面启动建筑节能政策,铝合金节能门窗需求急剧增加,进口隔热条产品供不应求,部分国内企业开始研制国产隔热条产品。据不完全统 计,目前我国每年的铝合金隔热条的需求大约在11亿~13亿米,建筑节能政策的实施对铝合金门窗隔热条市场需求是巨大的。


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