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Posted to users@wicket.apache.org by grazia <Gr...@gmail.com> on 2013/06/12 04:24:19 UTC
bug in TableComponentAsXlsHandler
I am using the wicket poi api to generate an excel file from a
PageableListView.
I just run into a bug in lines 67-76 of TableComponentAsXlsHandler.java:
cellExplorer becomes null already at the second iteration of the for loop
(see below)
TableParser parser = new TableParser(newSheet(), cellExporter);
if (tableComponent instanceof IPageable)
{
IPageable pageable = (IPageable)tableComponent;
for (int i = 0; i < pageable.getPageCount(); i++)
{
pageable.setCurrentPage(i);
parser.parse(tableComponent);
}
}
and we get a NullPointerException on line
org.wicketstuff.poi.excel.TableParser.doParse(TableParser.java:152) (see
below)
Do you have any suggestions on how to solve this problem ?
I am using wicket-poi-1.5-RC5.1.jar
SEVERE: Unexpected error occurred
java.lang.RuntimeException: Error while generating a xls file to table
component
at
org.wicketstuff.poi.excel.TableComponentAsXlsHandler.respond(TableComponentAsXlsHandler.java:91)
at
org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:781)
at
org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
at
org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:97)
at
org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
at
org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
at
org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
at
org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:162)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:218)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at
org.apache.catalina.core.StandardContextValve.__invoke(StandardContextValve.java:123)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at
org.apache.catalina.core.StandardHostValve.__invoke(StandardHostValve.java:171)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:931)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.NullPointerException
at org.wicketstuff.poi.excel.TableParser.doParse(TableParser.java:152)
at org.wicketstuff.poi.excel.TableParser.parse(TableParser.java:76)
at
org.wicketstuff.poi.excel.TableComponentAsXlsHandler.respond(TableComponentAsXlsHandler.java:74)
... 26 more
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Re: bug in TableComponentAsXlsHandler
Posted by Martin Grigorov <mg...@apache.org>.
Hi,
On Wed, Jun 12, 2013 at 5:24 AM, grazia <Gr...@gmail.com>wrote:
>
>
> I am using the wicket poi api to generate an excel file from a
> PageableListView.
> I just run into a bug in lines 67-76 of TableComponentAsXlsHandler.java:
> cellExplorer becomes null already at the second iteration of the for loop
> (see below)
>
> TableParser parser = new TableParser(newSheet(), cellExporter);
> if (tableComponent instanceof IPageable)
> {
> IPageable pageable = (IPageable)tableComponent;
> for (int i = 0; i < pageable.getPageCount(); i++)
> {
> pageable.setCurrentPage(i);
> parser.parse(tableComponent);
> }
> }
>
> and we get a NullPointerException on line
> org.wicketstuff.poi.excel.TableParser.doParse(TableParser.java:152) (see
> below)
>
> Do you have any suggestions on how to solve this problem ?
> I am using wicket-poi-1.5-RC5.1.jar
>
You may try with a newer version. The last is 1.5.10
>
>
>
> SEVERE: Unexpected error occurred
> java.lang.RuntimeException: Error while generating a xls file to table
> component
> at
>
> org.wicketstuff.poi.excel.TableComponentAsXlsHandler.respond(TableComponentAsXlsHandler.java:91)
> at
>
> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:781)
> at
>
> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
> at
>
> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:97)
> at
> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
> at
>
> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
> at
>
> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
> at
>
> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:162)
> at
>
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:218)
> at
>
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
> at
>
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
> at
>
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
> at
>
> org.apache.catalina.core.StandardContextValve.__invoke(StandardContextValve.java:123)
> at
>
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java)
> at
>
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
> at
>
> org.apache.catalina.core.StandardHostValve.__invoke(StandardHostValve.java:171)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java)
> at
>
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
> at
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:931)
> at
>
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
> at
>
> org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
> at
>
> org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
> at
>
> org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
> at
>
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:722)
> Caused by: java.lang.NullPointerException
> at org.wicketstuff.poi.excel.TableParser.doParse(TableParser.java:152)
> at org.wicketstuff.poi.excel.TableParser.parse(TableParser.java:76)
> at
>
> org.wicketstuff.poi.excel.TableComponentAsXlsHandler.respond(TableComponentAsXlsHandler.java:74)
> ... 26 more
>
>
>
> --
> View this message in context:
> http://apache-wicket.1842946.n4.nabble.com/bug-in-TableComponentAsXlsHandler-tp4659409.html
> Sent from the Users forum mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>