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via XWiki.org JIRA by Vincent Massol, 1 year ago
java.util.ConcurrentModificationException: null	at java.util.AbstractList$Itr.remove(AbstractList.java:366)	at com.xpn.xwiki.util.AbstractNotifyOnUpdateList$Itr.remove(AbstractNotifyOnUpdateList.java:172)	at com.xpn.xwiki.objects.ListProperty.setList(ListProperty.java:201)	at com.xpn.xwiki.objects.ListProperty.setValue(ListProperty.java:81)	at com.xpn.xwiki.objects.ListProperty.clone(ListProperty.java:166)	at com.xpn.xwiki.objects.ListProperty.clone(ListProperty.java:38)	at com.xpn.xwiki.objects.BaseCollection.clone(BaseCollection.java:596)	at com.xpn.xwiki.objects.BaseObject.clone(BaseObject.java:190)	at com.xpn.xwiki.doc.XWikiDocument.cloneXObjects(XWikiDocument.java:2476)	at com.xpn.xwiki.doc.XWikiDocument.cloneXObjects(XWikiDocument.java:2445)	at com.xpn.xwiki.doc.XWikiDocument.cloneInternal(XWikiDocument.java:3396)	at com.xpn.xwiki.doc.XWikiDocument.clone(XWikiDocument.java:3339)	at com.xpn.xwiki.api.Document.getDoc(Document.java:168)	at com.xpn.xwiki.api.Document.getObject(Document.java:1083)	at com.xpn.xwiki.api.Document.getObject(Document.java:1069)	at sun.reflect.GeneratedMethodAccessor263.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)	at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567)	at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)	at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:228)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:187)	at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:105)	at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:1765)	at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1705)	at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:854)	at sun.reflect.GeneratedMethodAccessor215.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)	at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:228)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:187)	at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:105)	at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:1765)	at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1705)	at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:854)	at sun.reflect.GeneratedMethodAccessor215.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)	at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:228)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:187)	at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:105)	at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:1765)	at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1705)	at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:854)	at sun.reflect.GeneratedMethodAccessor215.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)	at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:106)	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:228)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:187)	at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:105)	at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:1765)	at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:155)	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:241)	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:116)	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:690)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:120)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:144)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)	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:175)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)	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:263)	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)	at java.lang.Thread.run(Thread.java:619)