Dear xwiki-users, We are getting a Java exception when saving a 7MB attachment. The attachment appears to be attached properly, since it appears in the attachment list and can be downloaded after the error. However, after attaching four or five files the server becomes so unresponsive that a restart is required. Configuration Info: OS: Windows 2000 Server RAM: 1GB JDK: 1.5.0_8 App Server: JBoss 4.0.4 Database: MySQL 4.1.21 Note that JBoss is run with -Xmx 512M, and increasing that to -Xmx 1024M has no effect. I've gone through the attachment documentation and mailing list archives and didn't see any references to a similar problem. Any help would be appreciated - I plan to checkout the code and see what's happening! Here is the stack trace: A problem occured while trying to service your request. Please contact the support if this happens again. Detailed information: Error number 0 in 11: Uncaught exception Wrapped Exception: Java heap space com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception Wrapped Exception: Java heap space at com.xpn.xwiki.web.ViewEditAction.execute(ViewEditAction.java:224) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestPr ocessor.java:421) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java: 226) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:173) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodi ngFilter.java:127) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilte r.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv e.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv e.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAs sociationValve.java:175) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.j ava:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java :126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java :105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve. java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:1 48) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:86 9) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.proc essConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint .java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorker Thread.java:112) at java.lang.Thread.run(Thread.java:595) Wrapped Exception: java.lang.OutOfMemoryError: Java heap space Thanks, Nathan Smith