Erro ao usar fileUpload

Pessoal, boa noite

Não estou conseguindo fazer com que o fileUpload do richfaces funcione. O mais estranho é que o mesmo código funciona na minha máquina e em um servidor Linux. Quando faço deploy em um segundo servidor, também linux, a transferência não é concçluída com sucesso. Estou achando que é conflito de libs, mas não consegui identificar e resolver o problema. Segue abaixo o componente upload e o log.

Componente:
----------------

<rich:fileUpload styleClass=“rich-fileupload-toolbar-decor”
listHeight=“10%”
listWidth=“80%”
immediate=“false”
immediateUpload=“true”
acceptedTypes=“doc,pdf,jpg,avi,mp3,odd,docx,mpq,xls,ppt,pptx,zip,bmp,wav”
ontyperejected=“alert(‘Formato de arquivo não aceito! Selecione apenas aquivos do tipo word, xls, txt, pdf, jpg, bmp, odd, ppt, pptx, zip, mp3, mpq, avi.’)”
addControlLabel=“Procurar”
uploadControlLabel=“Enviar”
clearAllControlLabel=“Limpar Tudo”
clearControlLabel=“Limpar”
cancelEntryControlLabel=“Cancelar”
stopEntryControlLabel=“Parar”
stopControlLabel=“Parar”
autoclear=“false”
doneLabel=“Envio Concluído!”
progressLabel=“Transferindo arquivo…”
transferErrorLabel=“Falha ao transferir o arquivo. Tente novamente.”
id=“uploadAnexos”
fileUploadListener="#{anexoController.listner}">
<a4j:support event=“onclear” action="#{anexoController.limparArquivo}" reRender=“uploadAnexos”/>
</rich:fileUpload>

LOG
---------------------

May 17, 2012 9:14:57 AM org.apache.myfaces.lifecycle.PhaseListenerManager informPhaseListenersBefore
SEVERE: Exception in PhaseListener RESTORE_VIEW(1) beforePhase.
java.lang.ArrayIndexOutOfBoundsException
at java.lang.System.arraycopy(Native Method)
at org.ajax4jsf.request.MultipartRequest.fillBuffer(MultipartRequest.java:396)
at org.ajax4jsf.request.MultipartRequest.initialize(MultipartRequest.java:600)
at org.ajax4jsf.request.MultipartRequest.parseRequest(MultipartRequest.java:616)
at org.richfaces.component.FileUploadPhaselistener.beforePhase(FileUploadPhaselistener.java:63)
at org.apache.myfaces.lifecycle.PhaseListenerManager.informPhaseListenersBefore(PhaseListenerManager.java:73)
at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:93)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:76)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:183)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at br.jus.trf5.jsf.filters.SessionFilter.doFilter(SessionFilter.java:31)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:153)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:367)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.jstripe.tomcat.probe.Tomcat55AgentValve.invoke(Tomcat55AgentValve.java:20)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:776)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:705)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:898)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Thread.java:679)
May 17, 2012 9:16:17 AM org.apache.myfaces.lifecycle.PhaseListenerManager informPhaseListenersBefore
SEVERE: Exception in PhaseListener RESTORE_VIEW(1) beforePhase.
java.lang.ArrayIndexOutOfBoundsException
at java.lang.System.arraycopy(Native Method)
at org.ajax4jsf.request.MultipartRequest.fillBuffer(MultipartRequest.java:396)
at org.ajax4jsf.request.MultipartRequest.initialize(MultipartRequest.java:600)
at org.ajax4jsf.request.MultipartRequest.parseRequest(MultipartRequest.java:616)
at org.richfaces.component.FileUploadPhaselistener.beforePhase(FileUploadPhaselistener.java:63)
at org.apache.myfaces.lifecycle.PhaseListenerManager.informPhaseListenersBefore(PhaseListenerManager.java:73)
at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:93)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:76)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:183)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at br.jus.trf5.jsf.filters.SessionFilter.doFilter(SessionFilter.java:31)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:153)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:367)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.jstripe.tomcat.probe.Tomcat55AgentValve.invoke(Tomcat55AgentValve.java:20)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:776)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:705)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:898)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Thread.java:679)

Algúem poderia me ajudar, por favor?