I have similar problem as in Q: "HTTP 500 error when executing custom value provider" After plugin deployment & server reboot, web continue same behavior as without plugin, but in ccm.log I found that plugin alive & try run...

** Also, the JavaScript processing is enabled on the server.

2013-05-22 13:00:30,283 [          http-bio-9443-exec-8] ERROR net.jazz.ajax.servlets.StyleSheetServlet            - GET https://localhost:9443/ccm/web/_style/
?exclude=A~B~C~D~E~F~G~H~I~J~K~L~M~N~O~P~Q~R~S~T~U~V~W~X~Y~Z~a&include=com.ibm.team.apt.web.ui.internal.parts.EstimateAndCorrectionAttributePart.js~com.ibm.team.apt.web.ui.internal.parts.TimeSpentAttributePart.js~com.ibm.team.social.web.ui.internal.actions.WorkItemToActivityAction.js~com.ibm.team.social.web.ui.internal.actions.WorkItemToSocialNetworkAction.js~com.ibm.team.workitem.web.ui.internal.view.editor.PrintWorkItemAction.js~com.ibm.team.workitem.web.ui2.internal.presentation.Target.js~rb.jazz.workitem.toolbar.actions.ui.LinkedDefectEditorToolbarAction.js&ss=CQIIE&_proxyURL=%2Fccm&locale=en-usHEADER: host = localhost:9443
HEADER: user-agent = Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0
HEADER: accept = text/css,*/*;q=0.1
HEADER: accept-language = en-US,en;q=0.5
HEADER: accept-encoding = gzip, deflate
HEADER: referer = https://localhost:9443/ccm/web/projects/OLGA
HEADER: cookie = JSESSIONID=BC0...628; net-jazz-ajax-cookie-rememberUserId=wasadmin; JSESSIONIDSSO=3E1...D7C
HEADER: connection = keep-alive
Parameter: ss = [CQIIE]
Parameter: _proxyURL = [/ccm]
Parameter: include = [com.ibm.team.apt.web.ui.internal.parts.EstimateAndCorrectionAttributePart.js~com.ibm.team.apt.web.ui.internal.parts.TimeSpentAttributePart.js~com.ibm.team.social.web.ui.internal.actions.WorkItemToActivityAction.js~com.ibm.team.social.web.ui.internal.actions.WorkItemToSocialNetworkAction.js~com.ibm.team.workitem.web.ui.internal.view.editor.PrintWorkItemAction.js~com.ibm.team.workitem.web.ui2.internal.presentation.Target.js~rb.jazz.workitem.toolbar.actions.ui.LinkedDefectEditorToolbarAction.js]
Parameter: exclude = [A~B~C~D~E~F~G~H~I~J~K~L~M~N~O~P~Q~R~S~T~U~V~W~X~Y~Z~a]
Parameter: locale = [en-us]

java.lang.IllegalArgumentException: Resource does not exist: rb.jazz.workitem.toolbar.actions.ui.LinkedDefectEditorToolbarAction.js