Broker Errors

We are seeing the below errors under the Administratior/Broker Server/Brokers

java.lang.NullPointerException
at com.webmethods.portal.framework.portlet.beans.BasicPortletBean.createPortletURL(BasicPortletBean.java:758)
at com.webmethods.portal.framework.portlet.beans.BasicPortletBean.createRenderUrl(BasicPortletBean.java:676)
at com.webmethods.portal.framework.portletcontainer.beans.PortletBean.createRenderUrl(PortletBean.java:397)
at com.webmethods.portal.mech.portlet.impl.PortletMechanics.getLink(PortletMechanics.java:150)
at com.webmethods.portal.framework.portletcontainer.mech.PortletApplicationMechanics.getLink(PortletApplicationMechanics.java:77)
at com.webmethods.portal.framework.presentation.util.PortalJSONSerializer.serializeContent(PortalJSONSerializer.java:238)
at com.webmethods.portal.mech.storage.page.PortletHelper.printJSON(PortletHelper.java:462)
at com.webmethods.portal.framework.presentation.renderers.PortalPageSubRenderer.renderContentMetadata(PortalPageSubRenderer.java:197)
at com.webmethods.portal.framework.presentation.renderers.PortalPageSubRenderer.renderContent(PortalPageSubRenderer.java:131)
at com.webmethods.portal.framework.presentation.renderers.PortalPageSubRenderer.subrender(PortalPageSubRenderer.java:113)
at com.webmethods.portal.framework.presentation.renderers.NoodleRenderer.renderPageContent(NoodleRenderer.java:57)
at com.webmethods.portal.framework.presentation.renderers.DefaultRenderer.render(DefaultRenderer.java:224)
at com.webmethods.portal.framework.presentation.PresentationManager.handlePres(PresentationManager.java:370)
at com.webmethods.portal.framework.dispatch.DispatchManager.pres(DispatchManager.java:623)
at com.webmethods.portal.framework.dispatch.DispatchManager.handle(DispatchManager.java:458)
at com.webmethods.portal.framework.dispatch.DispatchManager.handleDispatch(DispatchManager.java:369)
at com.webmethods.portal.framework.impl.PortalServlet.service(PortalServlet.java:272)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at com.webmethods.portal.framework.impl.NTLMFilter.doFilter(NTLMFilter.java:50)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.webmethods.caf.faces.servlet.GZIPFilter.doFilter(GZIPFilter.java:42)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:451)

What could be the possible reason for this?

Is it the first time Broker running ? Have you properly Host and Port details in MWS ? which wM version are you using ?

Thanks,