Viewing a structure delta caused a CPU and memory spike in Windchill PDMLink 11.0

• Viewing a structure delta created a request that was still running 3 days later with 74.9% of the time on CPU
• Example stack trace:

"ajp-nio-8011-exec-39" Id=36026 RUNNABLE
      Blocked (cnt): 490; Waited (cnt): 2555
  at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:940)
  at com.ptc.windchill.enterprise.dsvcore.server.build.DeltaStructureFactory.getNode(DeltaStructureFactory.java:143)
  at com.ptc.windchill.enterprise.dsvcore.server.build.DeltaStructureFactory.getChildNode(DeltaStructureFactory.java:132)
  at com.ptc.windchill.enterprise.dsvcore.server.build.DeltaStructureFactory.collectNodesToBuildRecursively(DeltaStructureFactory.java:110)
  at com.ptc.windchill.enterprise.dsvcore.server.build.DeltaStructureFactory.createDeltaStructure(DeltaStructureFactory.java:86)
  at com.ptc.windchill.enterprise.dsvcore.server.build.DeltaStructureFactory.createPartDeltaStructure(DeltaStructureFactory.java:68)
  at com.ptc.windchill.enterprise.dsvcore.server.build.BuildFromPart.build(BuildFromPart.java:66)
  at com.ptc.windchill.enterprise.dsvcore.server.build.AbstractBuild.execute(AbstractBuild.java:71)
  at com.ptc.windchill.enterprise.dsv.server.ops.DsvOperation.build(DsvOperation.java:386)
  at com.ptc.windchill.enterprise.dsv.server.ops.DsvOperation.run(DsvOperation.java:98)
  at com.ptc.cat.ops.server.DefaultOperationDispatcher.dispatch(DefaultOperationDispatcher.java:138)
  at sun.reflect.GeneratedMethodAccessor1830.invoke(Unknown Source)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:498)
  at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:561)
  at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:545)
  at com.ptc.mvc.gwt.GwtHandlerAdapter.processCall(GwtHandlerAdapter.java:162)
  at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:305)
  at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
  at com.ptc.mvc.gwt.GwtHandlerAdapter.handle(GwtHandlerAdapter.java:117)
  at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
  at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
  at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
  at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
  at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
  at ...internalDoFilter()
  at ...doFilter()
  at com.ptc.core.ui.validation.URLValidationFilter.doFilter(URLValidationFilter.java:77)
  at ...internalDoFilter()
  at ...doFilter()
  at wt.httpgw.filter.WTContextBeanFilter.doWithWtContextBeanHandler(WTContextBeanFilter.java:104)
  at wt.httpgw.filter.WTContextBeanFilter.doFilter(WTContextBeanFilter.java:58)
  at ...internalDoFilter()
  at ...doFilter()
  at wt.servlet.CompressionFilter.doFilter(CompressionFilter.java:301)
  at ...internalDoFilter()
  at ...doFilter()
  at wt.servlet.RequestInterrupter.doFilter(RequestInterrupter.java:335)
  at ...internalDoFilter()
  at ...doFilter()
  at wt.servlet.ServletRequestMonitor.doFilter(ServletRequestMonitor.java:1660)
  at wt.servlet.ServletRequestMonitorFilter.doFilter(ServletRequestMonitorFilter.java:56)
  at ...internalDoFilter()
  at ...doFilter()
  at ....