HELP!!!! Couldn't properly perform introspection

[Migrated From Jforum.net]

Throws Exception in JForum.java service() method.

at net.jforum.JForum.service(JForum.java:200)

=========================================

08:52:55,953 WARN [beans ] Couldn't properly perform introspectio
n
java.beans.IntrospectionException: type mismatch between indexed and non-indexed
methods
at java.beans.IndexedPropertyDescriptor.findIndexedPropertyType(IndexedP
ropertyDescriptor.java:193)
at java.beans.IndexedPropertyDescriptor.<init>(IndexedPropertyDescriptor
.java:102)
at freemarker.ext.beans.BeansWrapper.populateClassMapWithBeanInfo(BeansW
rapper.java:814)
at freemarker.ext.beans.BeansWrapper.populateClassMap(BeansWrapper.java:
736)
at freemarker.ext.beans.BeansWrapper.introspectClass(BeansWrapper.java:6
79)
at freemarker.ext.beans.BeanModel.<init>(BeanModel.java:134)
at freemarker.ext.beans.StringModel.<init>(StringModel.java:90)
at freemarker.ext.beans.StringModel$1.create(StringModel.java:75)
at freemarker.ext.util.ModelCache.getInstance(ModelCache.java:113)
at freemarker.ext.beans.BeansWrapper.wrap(BeansWrapper.java:393)
at freemarker.ext.beans.BeanModel.wrap(BeanModel.java:294)
at freemarker.ext.beans.IteratorModel.next(IteratorModel.java:134)
at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:157)

at freemarker.core.Environment.visit(Environment.java:351)
at freemarker.core.IteratorBlock.accept(IteratorBlock.java:95)
at freemarker.core.Environment.visit(Environment.java:196)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:196)
at freemarker.core.Environment.process(Environment.java:176)
at freemarker.template.Template.process(Template.java:231)
at net.jforum.JForum.service(JForum.java:200)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:157)
at net.jforum.util.legacy.clickstream.ClickstreamFilter.doFilter(Clickst
reamFilter.java:59)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:186)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(Standard
ContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:118)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)

at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:16
0)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ssConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:683)
at java.lang.Thread.run(Thread.java:534)
[originally posted on jforum.net by foliebug]

[Migrated From Jforum.net]

You can safely ignore it.

Rafael
[originally posted on jforum.net by Rafael Steil]

[Migrated From Jforum.net]

I encountered the same problem

how to solve it

please give us a explain
[originally posted on jforum.net by interpb]