ColdFusion 9 CFCookie error -

error message follows:

tried access method  coldfusion.runtime.neopagecontext.isundercfthread()z  class coldfusion.runtime.cookiescope 

this started happening without code changes. can post full stack trace if helps. happens on generic call cfcookie.

<cfcookie name="cookie_name" value="#cookie_value#"> 

we tried restarting coldfusion 9 service, iis 6 , did full reboot of server.

i appreciate suggestions may be.

java.lang.illegalaccesserror: tried access method coldfusion.runtime.neopagecontext.isundercfthread()z class coldfusion.runtime.cookiescope @ coldfusion.runtime.cookiescope.bindname(cookiescope.java:90) @ coldfusion.runtime.cookiescope.bindasscaler(cookiescope.java:81) @ coldfusion.runtime.neopagecontext.symtab_setsplitnameinmap(neopagecontext.java:1389) @ coldfusion.runtime.neopagecontext.symtab_setvalidatedsplitnameinstring(neopagecontext.java:1355) @ coldfusion.runtime.neopagecontext.symtab_setvalidatedsplitnameinstring(neopagecontext.java:1349) @ coldfusion.runtime.cfjsppage._structsetat(cfjsppage.java:2242) @ cfcomparedetails2ecfm192447556.runpage(c:\websites\includes\comparedetails.cfm:21) @ coldfusion.runtime.cfjsppage.invoke(cfjsppage.java:231) @ coldfusion.tagext.lang.includetag.dostarttag(includetag.java:416) @ coldfusion.runtime.cfjsppage._emptytcftag(cfjsppage.java:2722) @ cfcompare2ecfm930575567.runpage(c:\websites\compare.cfm:21) @ coldfusion.runtime.cfjsppage.invoke(cfjsppage.java:231) @ coldfusion.tagext.lang.includetag.dostarttag(includetag.java:416) @ coldfusion.runtime.cfjsppage._emptytcftag(cfjsppage.java:2722) @ cfapplication2ecfc1238545388$funcsetuprequest.runfunction(c:\websites\application.cfc:119) @ coldfusion.runtime.udfmethod.invoke(udfmethod.java:472) @ coldfusion.runtime.udfmethod$returntypefilter.invoke(udfmethod.java:405) @ coldfusion.runtime.udfmethod$argumentcollectionfilter.invoke(udfmethod.java:368) @ coldfusion.filter.functionaccessfilter.invoke(functionaccessfilter.java:55) @ coldfusion.runtime.udfmethod.runfilterchain(udfmethod.java:321) @ coldfusion.runtime.udfmethod.invoke(udfmethod.java:220) @ coldfusion.runtime.cfjsppage._invokeudf(cfjsppage.java:2582) @ cfframework2ecfc1986342034$funcsetuprequestwrapper.runfunction(b:\websites\fw1\org\corfield\framework.cfc:1725) @ coldfusion.runtime.udfmethod.invoke(udfmethod.java:472) @ coldfusion.runtime.udfmethod$returntypefilter.invoke(udfmethod.java:405) @ coldfusion.runtime.udfmethod$argumentcollectionfilter.invoke(udfmethod.java:368) @ coldfusion.filter.functionaccessfilter.invoke(functionaccessfilter.java:55) @ coldfusion.runtime.udfmethod.runfilterchain(udfmethod.java:321) @ coldfusion.runtime.udfmethod.invoke(udfmethod.java:220) @ coldfusion.runtime.cfjsppage._invokeudf(cfjsppage.java:2582) @ cfframework2ecfc1986342034$funconrequeststart.runfunction(b:\websites\fw1\org\corfield\framework.cfc:763) @ coldfusion.runtime.udfmethod.invoke(udfmethod.java:472) @ coldfusion.runtime.udfmethod$returntypefilter.invoke(udfmethod.java:405) @ coldfusion.runtime.udfmethod$argumentcollectionfilter.invoke(udfmethod.java:368) @ coldfusion.filter.functionaccessfilter.invoke(functionaccessfilter.java:55) @ coldfusion.runtime.udfmethod.runfilterchain(udfmethod.java:321) @ coldfusion.runtime.udfmethod.invoke(udfmethod.java:220) @ coldfusion.runtime.templateproxy.invoke(templateproxy.java:491) @ coldfusion.runtime.templateproxy.invoke(templateproxy.java:337) @ coldfusion.runtime.appeventinvoker.invoke(appeventinvoker.java:88) @ coldfusion.runtime.appeventinvoker.onrequeststart(appeventinvoker.java:258) @ coldfusion.filter.applicationfilter.invoke(applicationfilter.java:367) @ coldfusion.filter.requestmonitorfilter.invoke(requestmonitorfilter.java:48) @ coldfusion.filter.monitoringfilter.invoke(monitoringfilter.java:40) @ coldfusion.filter.pathfilter.invoke(pathfilter.java:94) @ coldfusion.filter.exceptionfilter.invoke(exceptionfilter.java:70) @ coldfusion.filter.clientscopepersistencefilter.invoke(clientscopepersistencefilter.java:28) @ coldfusion.filter.browserfilter.invoke(browserfilter.java:38) @ coldfusion.filter.nocachefilter.invoke(nocachefilter.java:46) @ coldfusion.filter.globalsfilter.invoke(globalsfilter.java:38) @ coldfusion.filter.datasourcefilter.invoke(datasourcefilter.java:22) @ coldfusion.filter.cachingfilter.invoke(cachingfilter.java:62) @ coldfusion.cfmservlet.service(cfmservlet.java:201) @ coldfusion.bootstrap.bootstrapservlet.service(bootstrapservlet.java:89) @ jrun.servlet.filterchain.dofilter(filterchain.java:86) @ coldfusion.monitor.event.monitoringservletfilter.dofilter(monitoringservletfilter.java:42) @ coldfusion.bootstrap.bootstrapfilter.dofilter(bootstrapfilter.java:46) @ jrun.servlet.filterchain.dofilter(filterchain.java:94) @ jrun.servlet.filterchain.service(filterchain.java:101) @ jrun.servlet.servletinvoker.invoke(servletinvoker.java:106) @ jrun.servlet.jruninvokerchain.invokenext(jruninvokerchain.java:42) @ jrun.servlet.jrunrequestdispatcher.invoke(jrunrequestdispatcher.java:286) @ jrun.servlet.servletengineservice.dispatch(servletengineservice.java:543) @ jrun.servlet.jrpp.jrunproxyservice.invokerunnable(jrunproxyservice.java:203) @ jrunx.scheduler.threadpool$threadthrottle.invokerunnable(threadpool.java:428) @ jrunx.scheduler.workerthread.run(workerthread.java:66) 

i think relevant trace cfusion-out.log

ava.lang.illegalaccesserror: tried access method coldfusion.runtime.neopagecontext.isundercfthread()z class coldfusion.runtime.cookiescope @ coldfusion.runtime.cookiescope.bindname(cookiescope.java:90) @ coldfusion.runtime.cookiescope.bindasscaler(cookiescope.java:81) @ coldfusion.runtime.neopagecontext.symtab_setsplitnameinmap(neopagecontext.java:1389) @ coldfusion.runtime.neopagecontext.symtab_setvalidatedsplitnameinstring(neopagecontext.java:1355) @ coldfusion.runtime.neopagecontext.symtab_setvalidateddottedname(neopagecontext.java:1437) @ coldfusion.runtime.neopagecontext.setvalidatedattribute(neopagecontext.java:571) @ coldfusion.runtime.neopagecontext.setattribute(neopagecontext.java:434) @ coldfusion.runtime.neopagecontext.setattribute(neopagecontext.java:427) @ coldfusion.runtime.securityscopetracker.setsecuritycookie(securityscopetracker.java:126) @ coldfusion.runtime.securityscopetracker.logout(securityscopetracker.java:85) @ coldfusion.tagext.security.logouttag.dostarttag(logouttag.java:20) @ coldfusion.runtime.cfjsppage._emptytcftag(cfjsppage.java:2722) @ cflogin2ecfm1599616868.runpage(c:\work\coldfusion\cf9_u1_final_hotfix\cfusion\wwwroot\cfide\administrator\login.cfm:11) @ coldfusion.runtime.cfjsppage.invoke(cfjsppage.java:231) @ coldfusion.tagext.lang.includetag.dostarttag(includetag.java:416) @ coldfusion.runtime.cfjsppage._emptytcftag(cfjsppage.java:2722) @ cfapplication2ecfm1920815415._factor5(c:\work\cf9_u1_final_hotfix\cfusion\wwwroot\cfide\administrator\application.cfm:210) @ cfapplication2ecfm1920815415._factor9(c:\work\cf9_u1_final_hotfix\cfusion\wwwroot\cfide\administrator\application.cfm:202) @ cfapplication2ecfm1920815415.runpage(c:\work\cf9_u1_final_hotfix\cfusion\wwwroot\cfide\administrator\application.cfm:1) @ coldfusion.runtime.cfjsppage.invoke(cfjsppage.java:231) @ coldfusion.tagext.lang.includetag.dostarttag(includetag.java:416) @ coldfusion.filter.cfincludefilter.invoke(cfincludefilter.java:65) @ coldfusion.filter.cfincludefilter.include(cfincludefilter.java:33) @ coldfusion.filter.applicationfilter.invoke(applicationfilter.java:297) @ coldfusion.filter.requestmonitorfilter.invoke(requestmonitorfilter.java:48) @ coldfusion.filter.monitoringfilter.invoke(monitoringfilter.java:40) @ coldfusion.filter.pathfilter.invoke(pathfilter.java:94) @ coldfusion.filter.exceptionfilter.invoke(exceptionfilter.java:70) @ coldfusion.filter.clientscopepersistencefilter.invoke(clientscopepersistencefilter.java:28) @ coldfusion.filter.browserfilter.invoke(browserfilter.java:38) @ coldfusion.filter.nocachefilter.invoke(nocachefilter.java:46) @ coldfusion.filter.globalsfilter.invoke(globalsfilter.java:38) @ coldfusion.filter.datasourcefilter.invoke(datasourcefilter.java:22) @ coldfusion.filter.cachingfilter.invoke(cachingfilter.java:62) @ coldfusion.cfmservlet.service(cfmservlet.java:201) @ coldfusion.bootstrap.bootstrapservlet.service(bootstrapservlet.java:89) @ jrun.servlet.filterchain.dofilter(filterchain.java:86) @ coldfusion.monitor.event.monitoringservletfilter.dofilter(monitoringservletfilter.java:42) @ coldfusion.bootstrap.bootstrapfilter.dofilter(bootstrapfilter.java:46) @ jrun.servlet.filterchain.dofilter(filterchain.java:94) @ jrun.servlet.filterchain.service(filterchain.java:101) @ jrun.servlet.servletinvoker.invoke(servletinvoker.java:106) @ jrun.servlet.jruninvokerchain.invokenext(jruninvokerchain.java:42) @ jrun.servlet.jrunrequestdispatcher.invokenext(jrunrequestdispatcher.java:586) @ jrun.servlet.jrunrequestdispatcher.forwardinvoke(jrunrequestdispatcher.java:555) @ jrun.servlet.jrunrequestdispatcher.forward(jrunrequestdispatcher.java:203) @ jrun.servlet.file.fileservlet.service(fileservlet.java:323) @ jrun.servlet.servletinvoker.invoke(servletinvoker.java:106) @ jrun.servlet.jruninvokerchain.invokenext(jruninvokerchain.java:42) @ jrun.servlet.jrunrequestdispatcher.invoke(jrunrequestdispatcher.java:286) @ jrun.servlet.servletengineservice.dispatch(servletengineservice.java:543) @ jrun.servlet.http.webservice.invokerunnable(webservice.java:172) @ jrunx.scheduler.threadpool$threadthrottle.invokerunnable(threadpool.java:428) @ jrunx.scheduler.workerthread.run(workerthread.java:66)