Thanks for replay. when I refresh the page once, I get the following errors
in the application log file:

2009-05-14 15:08:02,781
[https://hostname:1159/xwiki/bin/skin/skins/albatross/style.css]
[AJPRequestHandler-ApplicationServerThread-13]
  WARN  web.XWikiAction                 - Uncaught exception: Error number 0
in 11: Uncaught exception
Wrapped Exception:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
 
com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception
Wrapped Exception:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:241)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
    at
com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
    at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:111)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
    at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:145)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
    at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:670)
    at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:341)
    at
com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:816)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:231)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:136)
    at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
    at java.lang.Thread.run(Thread.java:619)
Wrapped Exception:
java.lang.NoSuchMethodError:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
    at
com.xpn.xwiki.web.XWikiServletResponse.setCharacterEncoding(XWikiServletResponse.java:115)
    at
com.xpn.xwiki.web.SkinAction.renderFileFromFilesystem(SkinAction.java:247)
    at com.xpn.xwiki.web.SkinAction.renderSkin(SkinAction.java:212)
    at com.xpn.xwiki.web.SkinAction.render(SkinAction.java:109)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:216)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
    at
com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
    at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:111)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
    at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:145)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
    at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:670)
    at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:341)
    at
com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:816)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:231)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:136)
    at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
    at java.lang.Thread.run(Thread.java:619)
2009-05-14 15:08:02,820
[https://hostname:1159/xwiki/bin/skin/skins/albatross/print.css]
[AJPRequestHandler-ApplicationServerThread-8]
  WARN  web.XWikiAction                 - Uncaught exception: Error number 0
in 11: Uncaught exception
Wrapped Exception:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
 
com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception
Wrapped Exception:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:241)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
    at
com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
    at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:111)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
    at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:145)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
    at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:670)
    at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:341)
    at
com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:816)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:231)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:136)
    at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
    at java.lang.Thread.run(Thread.java:619)
Wrapped Exception:
java.lang.NoSuchMethodError:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
    at
com.xpn.xwiki.web.XWikiServletResponse.setCharacterEncoding(XWikiServletResponse.java:115)
    at
com.xpn.xwiki.web.SkinAction.renderFileFromFilesystem(SkinAction.java:247)
    at com.xpn.xwiki.web.SkinAction.renderSkin(SkinAction.java:212)
    at com.xpn.xwiki.web.SkinAction.render(SkinAction.java:109)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:216)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
    at
com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
    at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:111)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
    at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:145)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
    at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:670)
    at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:341)
    at
com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:816)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:231)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:136)
    at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
    at java.lang.Thread.run(Thread.java:619)
2009-05-14 15:08:02,896
[https://hostname:1159/xwiki/bin/skin/resources/js/xwiki/lightbox/lightbox.css]
[AJPRequestHandler-ApplicationServerThread-18]
  WARN  web.XWikiAction                 - Uncaught exception: Error number 0
in 11: Uncaught exception
Wrapped Exception:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
 
com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception
Wrapped Exception:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:241)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
    at
com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
    at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:111)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
    at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:145)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
    at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:670)
    at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:341)
    at
com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:816)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:231)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:136)
    at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
    at java.lang.Thread.run(Thread.java:619)
Wrapped Exception:
java.lang.NoSuchMethodError:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
    at
com.xpn.xwiki.web.XWikiServletResponse.setCharacterEncoding(XWikiServletResponse.java:115)
    at
com.xpn.xwiki.web.SkinAction.renderFileFromFilesystem(SkinAction.java:247)
    at com.xpn.xwiki.web.SkinAction.render(SkinAction.java:133)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:216)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
    at
com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
    at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:111)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
    at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:145)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
    at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:670)
    at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:341)
    at
com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:816)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:231)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:136)
    at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
    at java.lang.Thread.run(Thread.java:619)
2009-05-14 15:08:03,220
[https://hostname:1159/xwiki/bin/skin/resources/js/xwiki/xwiki.js]
[AJPRequestHandler-ApplicationServerThread-13]
  WARN  web.XWikiAction                 - Uncaught exception: Error number 0
in 11: Uncaught exception
Wrapped Exception:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
 
com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception
Wrapped Exception:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:241)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
    at
com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
    at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:111)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
    at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:145)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
    at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:670)
    at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:341)
    at
com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:816)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:231)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:136)
    at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
    at java.lang.Thread.run(Thread.java:619)
Wrapped Exception:
java.lang.NoSuchMethodError:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
    at
com.xpn.xwiki.web.XWikiServletResponse.setCharacterEncoding(XWikiServletResponse.java:115)
    at
com.xpn.xwiki.web.SkinAction.renderFileFromFilesystem(SkinAction.java:247)
    at com.xpn.xwiki.web.SkinAction.render(SkinAction.java:133)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:216)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
    at
com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
    at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:111)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
    at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:145)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
    at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
    at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
    at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:670)
    at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:341)
    at
com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:816)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:231)
    at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:136)
    at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
    at java.lang.Thread.run(Thread.java:619)

also when I call e.g. the ccs file directly I get this error in browser
>https://hostname:1159/xwiki/bin/skin/skins/albatross/style.css
A problem occurred while trying to process your request. Please contact the
webmaster if this happens again.

Detailed information:

        Error number 0 in 11: Uncaught exception
Wrapped Exception:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception
Wrapped Exception:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:241)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
        at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at 
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at
com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
        at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:111)
        at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
        at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
        at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
        at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:145)
        at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
        at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:670)
        at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:341)
        at
com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:816)
        at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:231)
        at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:136)
        at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
        at java.lang.Thread.run(Thread.java:619)


Wrapped Exception:

java.lang.NoSuchMethodError:
javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V
        at
com.xpn.xwiki.web.XWikiServletResponse.setCharacterEncoding(XWikiServletResponse.java:115)
        at
com.xpn.xwiki.web.SkinAction.renderFileFromFilesystem(SkinAction.java:247)
        at com.xpn.xwiki.web.SkinAction.renderSkin(SkinAction.java:212)
        at com.xpn.xwiki.web.SkinAction.render(SkinAction.java:109)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:216)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
        at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at 
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at
com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
        at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:111)
        at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
        at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
        at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
        at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:145)
        at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
        at
com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:670)
        at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:341)
        at
com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:816)
        at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:231)
        at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:136)
        at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
        at java.lang.Thread.run(Thread.java:619)

Regards Marc
    
-- 
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