MethodInvocationException when clicking on a linked page

When clicking on a page (Jan Baan) within JavaPolis we get the following exception :

Cause:
org.apache.velocity.exception.MethodInvocationException: Invocation of method 'displayShortUrl' in class com.atlassian.confluence.util.GeneralUtil threw exception class java.lang.IllegalArgumentException : URLDecoder: Incomplete trailing escape (%) pattern

Stack Trace: [hide]
org.apache.velocity.exception.MethodInvocationException: Invocation of method 'displayShortUrl' in class com.atlassian.confluence.util.GeneralUtil threw exception class java.lang.IllegalArgumentException : URLDecoder: Incomplete trailing escape (%) pattern
at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:309)
at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:207)
at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:250)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:94)
at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:344)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:153)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:94)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:109)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:271)
at org.apache.velocity.runtime.directive.Parse.render(Parse.java:232)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:153)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:271)
at org.apache.velocity.Template.merge(Template.java:296)
at com.opensymphony.webwork.dispatcher.VelocityResult.doExecute(VelocityResult.java:94)
at bucket.util.profiling.ProfiledVelocityResult.doExecute(ProfiledVelocityResult.java:18)
at com.opensymphony.webwork.dispatcher.WebWorkResultSupport.execute(WebWorkResultSupport.java:115)
at com.opensymphony.xwork.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:261)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:185)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.opensymphony.xwork.interceptor.DefaultWorkflowInterceptor.intercept(DefaultWorkflowInterceptor.java:55)
at com.atlassian.confluence.core.ConfluenceWorkflowInterceptor.intercept(ConfluenceWorkflowInterceptor.java:33)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34)
at com.atlassian.confluence.core.ConfluenceValidationInterceptor.intercept(ConfluenceValidationInterceptor.java:16)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.atlassian.confluence.security.actions.PermissionCheckInterceptor.intercept(PermissionCheckInterceptor.java:40)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.atlassian.confluence.pages.actions.PageAwareInterceptor.intercept(PageAwareInterceptor.java:72)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.atlassian.confluence.core.ConfluenceAutowireInterceptor.intercept(ConfluenceAutowireInterceptor.java:25)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.atlassian.confluence.user.actions.AuthenticatedUserInterceptor.intercept(AuthenticatedUserInterceptor.java:67)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.atlassian.confluence.util.XWorkTransactionInterceptor.intercept(XWorkTransactionInterceptor.java:133)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163)
at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:115)
at com.opensymphony.webwork.dispatcher.ServletDispatcher.serviceAction(ServletDispatcher.java:278)
at com.opensymphony.webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:248)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:48)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java:82)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.atlassian.seraph.filter.LoginFilter.doFilter(LoginFilter.java:95)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.atlassian.johnson.filters.JohnsonFilter.doFilter(JohnsonFilter.java:50)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:68)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.atlassian.util.profiling.filters.ProfilingFilter.doFilter(ProfilingFilter.java:132)
at com.atlassian.confluence.util.error.ProfilingAndErrorFilter.doFilter(ProfilingAndErrorFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.atlassian.core.filters.AbstractEncodingFilter.doFilter(AbstractEncodingFilter.java:36)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:305)
at com.atlassian.confluence.servlet.SimpleDisplayServlet.doGet(SimpleDisplayServlet.java:54)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:145)
at com.atlassian.confluence.util.profiling.ProfilingPageFilter.parsePage(ProfilingPageFilter.java:158)
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:61)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java:168)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.atlassian.seraph.filter.LoginFilter.doFilter(LoginFilter.java:181)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.atlassian.johnson.filters.JohnsonFilter.doFilter(JohnsonFilter.java:96)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at org.springframework.orm.hibernate.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:117)
at bucket.custom.FlushingSpringSessionInViewFilter.doFilterInternal(FlushingSpringSessionInViewFilter.java:30)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:73)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.atlassian.util.profiling.filters.ProfilingFilter.doFilter(ProfilingFilter.java:132)
at com.atlassian.confluence.util.error.ProfilingAndErrorFilter.doFilter(ProfilingAndErrorFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.atlassian.core.filters.AbstractEncodingFilter.doFilter(AbstractEncodingFilter.java:36)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6356)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3635)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)

Referer URL: http://www.javapolis.com/confluence/display/JP04/JavaPolis+Business

Build Information:
Uptime: 2 days, 1 hour, 22 minutes, 37 seconds
Version: 1.2.1
Build Number: 59

Server Information:
Application Server: WebLogic Server 8.1 SP2 Fri Dec 5 15:01:51 PST 2003 316284 WebLogic Server 8.1 SP2 Fri Dec 5 15:01:51 PST 2003 316284 WebLogic Server 8.1 SP2 Fri Dec 5 15:01:51 PST 2003 316284
Servlet Version: 2.3
Database Dialect: net.sf.hibernate.dialect.HSQLDialect

Memory Information:
Total Memory: 510 MB
Free Memory: 108 MB
Used Memory: 402 MB

System Information:
System Date: Monday, 13 Sep 2004
System Time: 14:13:26
System Favourite Colour: Jet Black
Java Version: 1.4.1_05
Java Vendor: Sun Microsystems Inc.
JVM Version: 1.0
JVM Vendor: Sun Microsystems Inc.
JVM Implementation Version: 1.4.1_05-b01
Java Runtime: Java(TM) 2 Runtime Environment, Standard Edition
Java VM: Java HotSpot(TM) Client VM
User Name: root
User Timezone: MET
Operating System: SunOS 5.9
OS Architecture: sparc

Request

Information:
URL: http://www.javapolis.com:80/confluence/pages/viewpage.action

• Scheme: http
• Server: www.javapolis.com
• Port: 80
• URI: /confluence/pages/viewpage.action
• - Context Path: /confluence
• - Servlet Path: /pages/viewpage.action
• - Path Info: null
• - Query String: spaceKey=JP04&title=Jan+Baan

Attributes:

• weblogic.servlet.network_channel.port : 90
• weblogic.servlet.network_channel.sslport : 91
• javax.servlet.error.servlet_name : action
• com.atlassian.confluence.setup.SpringSessionInViewFilter.sessionFactory : true
• javax.servlet.error.message : Invocation of method 'displayShortUrl' in class com.atlassian.confluence.util.GeneralUtil threw exception class java.lang.IllegalArgumentException : URLDecoder: Incomplete trailing escape (%) pattern
• javax.servlet.error.exception : org.apache.velocity.exception.MethodInvocationException: Invocation of method 'displayShortUrl' in class com.atlassian.confluence.util.GeneralUtil threw exception class java.lang.IllegalArgumentException : URLDecoder: Incomplete trailing escape (%) pattern
• webwork.valueStack : com.opensymphony.xwork.util.OgnlValueStack@19439c9
• os_securityfilter_already_filtered : true
• com.atlassian.johnson.filters.JohnsonFilter_already_filtered : true
• javax.servlet.error.request_uri : /confluence/pages/viewpage.action
• atlassian.core.seraph.original.url : /display/JP04/Jan+Baan
• loginfilter.already.filtered : true
• javax.servlet.jsp.jspException : org.apache.velocity.exception.MethodInvocationException: Invocation of method 'displayShortUrl' in class com.atlassian.confluence.util.GeneralUtil threw exception class java.lang.IllegalArgumentException : URLDecoder: Incomplete trailing escape (%) pattern
• weblogic.servlet.errorPage : /500page.jsp
• javax.servlet.error.status_code : 500
• _sitemesh_filterapplied : true

Parameters:

• title = Jan Baan
• spaceKey = JP04

Logging:
0 log statements generated by this request.