Hello Martin, Thanks for the tip. I'll double check the version of javax.servlet currently being used
On Wed, Oct 24, 2012 at 7:24 PM, Martin Grigorov <mgrigo...@apache.org>wrote: > Hi Maxim, > > What web container do you use ? > According to Servlet API > ( > http://docs.oracle.com/javaee/6/api/javax/servlet/ServletRequest.html#getParameterMap() > ) > the map should be <String, String[]). > > On Wed, Oct 24, 2012 at 1:45 PM, Maxim Solodovnik <solomax...@gmail.com> > wrote: > > Hello Martin, > > > > I just have tested Wicket 6.2 > > Using AjaxDownload: > > > https://svn.apache.org/repos/asf/incubator/openmeetings/trunk/singlewebapp/src/org/apache/openmeetings/web/util/AjaxDownload.java > > > > > https://svn.apache.org/repos/asf/incubator/openmeetings/trunk/singlewebapp/src/org/apache/openmeetings/web/components/admin/backup/BackupPanel.java(line > : > > 123 currently commented out) > > > > I get URL like this on file download: > > > http://192.168.72.100:5080/openmeetings/html/?4-1.IBehaviorListener.0-contents-child-backupUpload&antiCache=1351074316336 > > > > And then get ClassCastException from Wiket in: > > org.apache.wicket.protocol.http.servlet.ServletWebRequest line 305 > > > > param.getValue() returns String and cannot be casted to String[] (for the > > 'antiCache' parameter above) > > > > Is there anything I can do to fix it? > > > > > > Thanks a lot in advance :) > > > > On Wed, Oct 17, 2012 at 5:39 PM, Maxim Solodovnik <solomax...@gmail.com > >wrote: > > > >> Thanks a lot! > >> Those NullPointer exceptions makes makes me mad :( (we use customized > >> Tomcat 6 in our project) And I get them all the time. > >> I get rid of all callback URL and all parameters passed via URL. > >> > >> Thanks!! :) > >> > >> > >> On Wed, Oct 17, 2012 at 5:11 PM, Martin Grigorov <mgrigo...@apache.org > >wrote: > >> > >>> There was a response from Maxim from OpenMeetings team, but > >>> users@wicket.apache.org was not in CC: > >>> > >>> <copy> > >>> Hello Martin, > >>> > >>> I have modified the code and have removed AjaxDownloader (since it is > not > >>> really necessary). > >>> NullPointerException somehow happens while post parameters parsing > >>> (getCallbackURL) is not working anymore. > >>> > >>> I believe this is somehow connected with custom HomePageMapper > >>> > >>> > >>> > https://svn.apache.org/viewvc/incubator/openmeetings/trunk/singlewebapp/src/org/apache/openmeetings/web/app/Application.java?revision=1384647&view=markup > >>> > >>> line 62 and below. > >>> Maybe you can help me with this? > >>> > >>> I have added HomePageMapper to implement "single page application" and > >>> remove all URL parameters automaticatilly being added by Wicket. > >>> > >>> Thanks in advance > >>> > >>> </copy> > >>> > >>> > >>> Hi Maxim, > >>> > >>> The NullPointerException is while Wicket tries to read the POST > >>> parameters. The request mappers manipulate only the GET parameters, so > >>> I think it is not related. > >>> I've just checked Jetty 7.6.3 sources and they return String[0] so it > >>> should be OK in this particular version of Jetty. But I'll add the > >>> check anyway with https://issues.apache.org/jira/browse/WICKET-4818 > >>> > >>> On Wed, Oct 17, 2012 at 9:16 AM, Martin Grigorov <mgrigo...@apache.org > > > >>> wrote: > >>> > Hi, > >>> > > >>> > On Tue, Oct 16, 2012 at 7:59 PM, seba.wag...@gmail.com > >>> > <seba.wag...@gmail.com> wrote: > >>> >> Hi, > >>> >> > >>> >> I did follow this tutorial to create a download via Ajax in a form: > >>> >> > >>> > https://cwiki.apache.org/confluence/display/WICKET/AJAX+update+and+file+download+in+one+blow > >>> >> > >>> >> The slightly modified code can be seen here: > >>> >> > >>> > https://svn.apache.org/viewvc/incubator/openmeetings/trunk/singlewebapp/src/org/apache/openmeetings/web/components/admin/backup/BackupPanel.java?view=markup > >>> >> Line 127 "download.initialize(target);" is called. > >>> > > >>> > It seems you have modified BackupPanel. There is no code like > >>> > "download.initialize(target)" > >>> > > >>> >> > >>> >> The rest seems to me similar to the example, except for that I set > the > >>> File > >>> >> is set dynamically with every Ajax request. > >>> >> > >>> >> The File itself does exist and is created correctly. > >>> >> > >>> >> However Wicket throws this wired exception: > >>> >> http://pastebin.com/raw.php?i=Fijqjd5y > >>> > > >>> > NullPointerException is not something one should expect so it is a > bug. > >>> > According to > >>> > https://github.com/apache/wicket/blob/build/wicket-6.0.0/wicket-core/src/main/java/org/apache/wicket/protocol/http/servlet/ServletWebRequest.java#L321 > >>> > its cause is that HttpServletRequest.getParametersMap() returns a Map > >>> > with an entry with value == null. I'm not sure in what cases this can > >>> > happen but I'll add a check for null there. > >>> > > >>> >> > >>> >> The trace seems to be an internal Wicket error. Is this a Bug inside > >>> Wicket? > >>> >> > >>> >> Sebastian > >>> >> -- > >>> >> Sebastian Wagner > >>> >> https://twitter.com/#!/dead_lock > >>> >> http://www.webbase-design.de > >>> >> http://www.wagner-sebastian.com > >>> >> seba.wag...@gmail.com > >>> > > >>> > > >>> > > >>> > -- > >>> > Martin Grigorov > >>> > jWeekend > >>> > Training, Consulting, Development > >>> > http://jWeekend.com > >>> > >>> > >>> > >>> -- > >>> Martin Grigorov > >>> jWeekend > >>> Training, Consulting, Development > >>> http://jWeekend.com > >>> > >> > >> > >> > >> -- > >> WBR > >> Maxim aka solomax > >> > > > > > > > > -- > > WBR > > Maxim aka solomax > > > > -- > Martin Grigorov > jWeekend > Training, Consulting, Development > http://jWeekend.com > -- WBR Maxim aka solomax
