perfsonar development work

[Prodromos Gerakios <>]

Stijn Melis wrote:
> > I think that the jdom parser fails and the data structures do not get
> > populated. As a result you get this error.
> >     
> > > ------------------------------------------------------------------------
> > >
> > > <?xml version="1.0" encoding="UTF-8"?>
> > > <!DOCTYPE properties [
> > >  <!ELEMENT properties ( comment?, property* )>
> > > <!ATTLIST properties version CDATA #FIXED "0.1">
> > > <!ELEMENT comment (#PCDATA) >
> > > <!ELEMENT property (entry,Comment,ProposedValue,Group+,AcceptedValue*) >
> > > <!ELEMENT entry (#PCDATA) >
> > > <!ATTLIST entry
> > > key CDATA #REQUIRED
> > >         password (true|false) #IMPLIED
> > >         required (true|false) #IMPLIED    >
> > > <!ELEMENT Comment (#PCDATA) >
> > > <!ELEMENT ProposedValue (#PCDATA) >
> > > <!ELEMENT Group (#PCDATA) >
> > > <!ATTLIST Group   order CDATA #REQUIRED  check (true|false) #IMPLIED  
> > > <!ELEMENT AcceptedValue (#PCDATA) >
> > > ]>
> > >   
> > >       
> > Where is the definition of "dependsOn" ? :-)  You should either delete
> > dependsOn from
> > the element attributes or define it in the DTD.
> >     
>
> I added dependsOn CDATA #IMPLIED to the DTD, although I find it strange
> that this has always worked, and the dependsOn wasn't in the DTD before :s
>
> However, when I try to go to the basic configuration page again after
> adding the dependsOn to the DTD and restarting tomcat, I still get an error.
>
> java.lang.NullPointerException
>         at
> perfSONARWebAdmin.auxiliary.wizard.DescendantIterator.hasNext(DescendantIterator.java:133)
>         at
> perfSONARWebAdmin.auxiliary.wizard.WizardProperties.populateProperties(WizardProperties.java:330)
>         at
> perfSONARWebAdmin.auxiliary.wizard.WizardProperties.loadFromXML(WizardProperties.java:188)
>         at perfSONARWebAdmin.admin.wizard.Wizard.init(Wizard.java:96)
>         at
> org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1139)
>         at
> org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:791)
>         at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:127)
>         at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
>         at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
>         at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
>         at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
>         at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
>         at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870)
>         at
> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
>         at
> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
>         at
> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
>         at
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
>         at java.lang.Thread.run(Thread.java:595)
>
> I think it's the same error as before, but now it no longer mentions the
> dependsOn attribute.
>
> Regards,
>
> Stijn
>   
I know what is wrong ... I have implemented a naive xml parser (this was 
for the section ordering bug , which is not resolved yet) which reads 
off  the key attributes of all "element" elements. As I mentioned this 
parser is pretty primitive so it does not understand xml comments. 
Please try removing the commented lines between the properties elements. 
It should work then.

I will fix this issue in the next version. Please send me a bug report 
in case I forget about it.

Sorry for the inconvenience,
Prodromos