Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Atlassian JIRA by Andreas Knecht, 1 year ago
via Atlassian JIRA by Andreas Knecht, 1 year ago
java.lang.IllegalArgumentException: 'fred' is not a valid user	at com.atlassian.jira.security.type.SingleUser.getUsers(SingleUser.java:112)	at com.atlassian.jira.scheme.AbstractSchemeManager.getUsers(AbstractSchemeManager.java:494)	at com.atlassian.jira.permission.WorkflowBasedPermissionSchemeManager.getUsers(WorkflowBasedPermissionSchemeManager.java:44)	at com.atlassian.jira.issue.fields.AssigneeSystemField.getAssignableUsers(AssigneeSystemField.java:376)	at com.atlassian.jira.issue.fields.AssigneeSystemField.getAssigneeOptionsList(AssigneeSystemField.java:332)	at com.atlassian.jira.issue.fields.AssigneeSystemField.getEditHtml(AssigneeSystemField.java:87)	at com.atlassian.jira.issue.fields.AbstractOrderableField.getEditHtml(AbstractOrderableField.java:64)	at com.atlassian.jira.issue.fields.screen.AbstractFieldScreenLayoutItem.getEditHtml(AbstractFieldScreenLayoutItem.java:48)	at com.atlassian.jira.issue.fields.screen.FieldScreenRenderLayoutItemImpl.getEditHtml(FieldScreenRenderLayoutItemImpl.java:34)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at webwork.util.InjectionUtils$DefaultInjectionImpl.invoke(InjectionUtils.java:61)	at webwork.util.InjectionUtils.invoke(InjectionUtils.java:52)	at webwork.util.ValueStack.findValue(ValueStack.java:426)	at webwork.util.ValueStack.findValue(ValueStack.java:175)	at webwork.view.taglib.WebWorkBodyTagSupport.findValue(WebWorkBodyTagSupport.java:61)	at webwork.view.taglib.BasicPropertyTag.doStartTag(BasicPropertyTag.java:54)	at org.apache.jsp.template.standard.issuefields_jsp._jspx_meth_webwork_property_16(issuefields_jsp.java:1133)	at org.apache.jsp.template.standard.issuefields_jsp._jspx_meth_webwork_else_5(issuefields_jsp.java:1106)	at org.apache.jsp.template.standard.issuefields_jsp._jspx_meth_webwork_if_7(issuefields_jsp.java:1026)	at org.apache.jsp.template.standard.issuefields_jsp._jspx_meth_webwork_iterator_3(issuefields_jsp.java:989)	at org.apache.jsp.template.standard.issuefields_jsp._jspx_meth_webwork_iterator_2(issuefields_jsp.java:839)	at org.apache.jsp.template.standard.issuefields_jsp._jspService(issuefields_jsp.java:97)	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574)	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499)	at webwork.view.taglib.IncludeTag.include(IncludeTag.java:59)	at webwork.view.taglib.ui.ComponentTag.doEndTag(ComponentTag.java:183)	at org.apache.jsp.secure.views.issue.editissue_jsp._jspx_meth_webwork_component_0(editissue_jsp.java:936)	at org.apache.jsp.secure.views.issue.editissue_jsp._jspx_meth_webwork_if_1(editissue_jsp.java:858)	at org.apache.jsp.secure.views.issue.editissue_jsp._jspx_meth_page_applyDecorator_0(editissue_jsp.java:482)	at org.apache.jsp.secure.views.issue.editissue_jsp._jspx_meth_webwork_if_0(editissue_jsp.java:408)	at org.apache.jsp.secure.views.issue.editissue_jsp._jspService(editissue_jsp.java:113)	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)	at com.atlassian.jira.web.dispatcher.JiraServletDispatcher.service(JiraServletDispatcher.java:253)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.atlassian.jira.web.filters.AccessLogFilter.doFilter(AccessLogFilter.java:51)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:119)	at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:55)	at com.atlassian.jira.web.filters.SitemeshExcludePathFilter.doFilter(SitemeshExcludePathFilter.java:38)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java:182)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.atlassian.seraph.filter.LoginFilter.doFilter(LoginFilter.java:177)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.atlassian.util.profiling.filters.ProfilingFilter.doFilter(ProfilingFilter.java:132)	at com.atlassian.jira.web.filters.ProfilingAndErrorFilter.doFilter(ProfilingAndErrorFilter.java:25)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.atlassian.jira.web.filters.ActionCleanupDelayFilter.doFilter(ActionCleanupDelayFilter.java:39)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.atlassian.johnson.filters.JohnsonFilter.doFilter(JohnsonFilter.java:91)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.atlassian.jira.web.filters.gzip.GzipFilter.doFilter(GzipFilter.java:72)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.atlassian.core.filters.AbstractEncodingFilter.doFilter(AbstractEncodingFilter.java:37)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)	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:148)	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:831)	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:639)	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1196)	at java.lang.Thread.run(Unknown Source)