Edit Page returns System Error

1. Created a Table on "Product Strategies" page
2. Saved Table successfully
3. Tried to Edit again; system error every time attempted

Cause:
java.util.NoSuchElementException

Stack Trace: [hide]

java.util.NoSuchElementException
at java.util.LinkedList.getLast(LinkedList.java:118)
at org.apache.commons.jrcs.diff.MergeVisitor.getMappedAnchorPoint(MergeVisitor.java:246)
at org.apache.commons.jrcs.diff.MergeVisitor.visit(MergeVisitor.java:177)
at org.apache.commons.jrcs.diff.AddDelta.accept(AddDelta.java:124)
at org.apache.commons.jrcs.diff.Revision.accept(Revision.java:249)
at com.atlassian.confluence.util.DiffUtils.mergeChanges(DiffUtils.java:462)
at com.atlassian.confluence.pages.DefaultDraftManager.getMergedContent(DefaultDraftManager.java:99)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.springframework.aop.framework.AopProxyUtils.invokeJoinpointUsingReflection(AopProxyUtils.java:61)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:149)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:116)
at com.atlassian.confluence.util.profiling.SpringProfilingInterceptor.invoke(SpringProfilingInterceptor.java:18)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:138)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:152)
at $Proxy34.getMergedContent(Unknown Source)
at com.atlassian.confluence.pages.actions.AbstractEditPageAction.doDefault(AbstractEditPageAction.java:95)
at com.atlassian.confluence.pages.actions.EditPageAction.doDefault(EditPageAction.java:139)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.opensymphony.xwork.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:302)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:170)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.atlassian.confluence.security.actions.PermissionCheckInterceptor.intercept(PermissionCheckInterceptor.java:39)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.atlassian.confluence.pages.actions.PageAwareInterceptor.intercept(PageAwareInterceptor.java:94)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.atlassian.confluence.spaces.actions.SpaceAwareInterceptor.intercept(SpaceAwareInterceptor.java:82)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.atlassian.confluence.core.ConfluenceAutowireInterceptor.intercept(ConfluenceAutowireInterceptor.java:25)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.atlassian.confluence.util.XWorkTransactionInterceptor.intercept(XWorkTransactionInterceptor.java:133)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:115)
at com.opensymphony.webwork.dispatcher.ServletDispatcher.serviceAction(ServletDispatcher.java:229)
at com.opensymphony.webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:199)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:103)
at com.caucho.server.http.FilterChainServlet.doFilter(FilterChainServlet.java:96)
at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)
at com.atlassian.confluence.util.profiling.ProfilingPageFilter.parsePage(ProfilingPageFilter.java:150)
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.confluence.util.UserThreadLocalFilter.doFilter(UserThreadLocalFilter.java:45)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java:182)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.seraph.filter.LoginFilter.doFilter(LoginFilter.java:177)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.johnson.filters.JohnsonFilter.doFilter(JohnsonFilter.java:96)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at org.springframework.orm.hibernate.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:170)
at bucket.custom.FlushingSpringSessionInViewFilter.doFilterInternal(FlushingSpringSessionInViewFilter.java:31)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:73)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.util.profiling.filters.ProfilingFilter.doFilter(ProfilingFilter.java:132)
at com.atlassian.confluence.util.error.ProfilingAndErrorFilter.doFilter(ProfilingAndErrorFilter.java:27)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.core.filters.gzip.GzipFilter.doFilter(GzipFilter.java:61)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.core.filters.AbstractEncodingFilter.doFilter(AbstractEncodingFilter.java:37)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.caucho.server.http.Invocation.service(Invocation.java:315)
at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:246)
at com.caucho.server.http.HttpRequest.handleConnection(HttpRequest.java:163)
at com.caucho.server.TcpConnection.run(TcpConnection.java:139)
at java.lang.Thread.run(Thread.java:534)

Referer URL: http://extranet.atlassian.com/display/STRAT/Product+Strategies

Build Information:
Confluence Home: /opt/java/src/confluence/deployments/extranet.atlassian.com/home
Uptime: 12 hours, 23 minutes, 43 seconds
Version: 2.1.1
Build Number: 406

Server Information:
Application Server: Resin/2.1.11
Servlet Version: 2.3
Database Dialect: net.sf.hibernate.dialect.PostgreSQLDialect
Database Driver Name: null
Database Driver Version: Not available

Memory Information:
Total Memory: 297 MB
Free Memory: 86 MB
Used Memory: 211 MB

System Information:
System Date: Friday, 23 Dec 2005
System Time: 12:55:11
System Favourite Colour: Chartreuse
Java Version: 1.4.2_04
Java Vendor: Sun Microsystems Inc.
JVM Version: 1.0
JVM Vendor: Sun Microsystems Inc.
JVM Implementation Version: 1.4.2_04-b05
Java Runtime: Java(TM) 2 Runtime Environment, Standard Edition
Java VM: Java HotSpot(TM) Client VM
User Name: j2ee
User Timezone: America/Chicago
Operating System: Linux 2.4.21-37.ELsmp
OS Architecture: i386
Request

Information:
URL: http://atlassian01.contegix.com:10087/500page.jsp

• Scheme: http
• Server: atlassian01.contegix.com
• Port: 10087
• URI: /500page.jsp
• - Context Path:
• - Servlet Path: /500page.jsp
• - Path Info: null
• - Query String: null

Attributes:

• javax.servlet.error.exception : java.util.NoSuchElementException
• sessioninview.FILTERED : true
• javax.servlet.error.status_code : 500
• com.atlassian.johnson.filters.JohnsonFilter_already_filtered : true
• atlassian.core.seraph.original.url : /pages/editpage.action?pageId=69518087748076295
• webwork.valueStack : com.opensymphony.xwork.util.OgnlValueStack@1f0827a
• javax.servlet.error.servlet_name : action
• loginfilter.already.filtered : true
• os_securityfilter_already_filtered : true
• _sitemesh_filterapplied : true
• javax.servlet.error.message : Internal Server Error
• javax.servlet.error.request_uri : /pages/editpage.action
• javax.servlet.jsp.jspException : java.util.NoSuchElementException
• com.atlassian.core.filters.gzip.GzipFilter_already_filtered : true

Parameters:

• pageId = 69518087748076295

Logging:
3 log statements generated by this request:
[ERROR] Fri Dec 23 12:55:07 CST 2005 [com.atlassian.confluence.util.XWorkTransactionInterceptor] Invoking rollback for transaction on action '/pages/editpage.action (EditPageAction.doDefault())' due to throwable: java.util.NoSuchElementException
Throwable:
java.util.NoSuchElementException
at java.util.LinkedList.getLast(LinkedList.java:118)
at org.apache.commons.jrcs.diff.MergeVisitor.getMappedAnchorPoint(MergeVisitor.java:246)
at org.apache.commons.jrcs.diff.MergeVisitor.visit(MergeVisitor.java:177)
at org.apache.commons.jrcs.diff.AddDelta.accept(AddDelta.java:124)
at org.apache.commons.jrcs.diff.Revision.accept(Revision.java:249)
at com.atlassian.confluence.util.DiffUtils.mergeChanges(DiffUtils.java:462)
at com.atlassian.confluence.pages.DefaultDraftManager.getMergedContent(DefaultDraftManager.java:99)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.springframework.aop.framework.AopProxyUtils.invokeJoinpointUsingReflection(AopProxyUtils.java:61)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:149)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:116)
at com.atlassian.confluence.util.profiling.SpringProfilingInterceptor.invoke(SpringProfilingInterceptor.java:18)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:138)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:152)
at $Proxy34.getMergedContent(Unknown Source)
at com.atlassian.confluence.pages.actions.AbstractEditPageAction.doDefault(AbstractEditPageAction.java:95)
[ERROR] Fri Dec 23 12:55:07 CST 2005 [com.opensymphony.webwork.dispatcher.ServletDispatcher] Could not execute action
Throwable:
java.util.NoSuchElementException
at java.util.LinkedList.getLast(LinkedList.java:118)
at org.apache.commons.jrcs.diff.MergeVisitor.getMappedAnchorPoint(MergeVisitor.java:246)
at org.apache.commons.jrcs.diff.MergeVisitor.visit(MergeVisitor.java:177)
at org.apache.commons.jrcs.diff.AddDelta.accept(AddDelta.java:124)
at org.apache.commons.jrcs.diff.Revision.accept(Revision.java:249)
at com.atlassian.confluence.util.DiffUtils.mergeChanges(DiffUtils.java:462)
at com.atlassian.confluence.pages.DefaultDraftManager.getMergedContent(DefaultDraftManager.java:99)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.springframework.aop.framework.AopProxyUtils.invokeJoinpointUsingReflection(AopProxyUtils.java:61)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:149)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:116)
at com.atlassian.confluence.util.profiling.SpringProfilingInterceptor.invoke(SpringProfilingInterceptor.java:18)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:138)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:152)
at $Proxy34.getMergedContent(Unknown Source)
at com.atlassian.confluence.pages.actions.AbstractEditPageAction.doDefault(AbstractEditPageAction.java:95)
[ERROR] Fri Dec 23 12:55:11 CST 2005 [com.atlassian.confluence.admin.actions.ViewSystemInfoAction] Error trying to retrieve the Driver for url 'null' null
Throwable:
java.lang.NullPointerException
at com.caucho.sql.DBPool.acceptsURL(DBPool.java:897)
at java.sql.DriverManager.getDriver(DriverManager.java:232)
at com.atlassian.confluence.admin.actions.ViewSystemInfoAction.getDatabaseDriverVersion(ViewSystemInfoAction.java:171)
at 500pagejsp._jspService(_500page_jsp.java:109)
at com.caucho.jsp.JavaPage.service(JavaPage.java:75)
at com.caucho.jsp.Page.subservice(Page.java:506)
at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182)
at com.caucho.server.http.Invocation.service(Invocation.java:315)
at com.caucho.server.http.QRequestDispatcher.forward(QRequestDispatcher.java:222)
at com.caucho.server.http.Response.handleErrorStatus(Response.java:593)
at com.caucho.server.http.Response.sendError(Response.java:496)
at javax.servlet.http.HttpServletResponseWrapper.sendError(HttpServletResponseWrapper.java:103)
at javax.servlet.http.HttpServletResponseWrapper.sendError(HttpServletResponseWrapper.java:103)
at com.opensymphony.module.sitemesh.filter.PageResponseWrapper.sendError(PageResponseWrapper.java:180)
at com.opensymphony.webwork.dispatcher.ServletDispatcher.sendError(ServletDispatcher.java:349)
at com.opensymphony.webwork.dispatcher.ServletDispatcher.serviceAction(ServletDispatcher.java:235)
at com.opensymphony.webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:199)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:103)
at com.caucho.server.http.FilterChainServlet.doFilter(FilterChainServlet.java:96)