This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
> Full Name: Janelle Whitlock > Email Address: address@hidden > Organization: Kirby Science Discovery Center > Package Version: 4.0u1 build date:2013-03-29 18:10 UTC > Operating System: Windows 8 > Hardware: Java: home: C:\Program Files (x86)\Java\jre7 version: 1.7.0_25 > j3d:1.5.2 fcs (build4) > Description of problem: Creating display: Locations > java.lang.NullPointerException > > > An error is occuring whenever we to access ANY data. We are also be > told that we have timed out from the connection and we have not been > able to see anything before it times out. It is hard to tell you which > items we are trying to access because it tells us that error everytime. > We have a major educational training coming up where we will be showing > the IDV to many teachers and need to get this issue resolved. > > Thank you for your help. :) > Janelle, This looks like the network connection issue, do you have any firewall in your side? Yuan > > ****************** > Stack trace: > java.lang.NullPointerException > at ucar.unidata.metdata.NamedStationTable.getMap(NamedStationTable.java:1438) > at ucar.unidata.metdata.StationTableImpl.values(StationTableImpl.java:161) > at > ucar.unidata.idv.control.StationLocationControl.getStationList(StationLocationControl.java:1315) > at > ucar.unidata.idv.control.StationLocationControl.getFilterNames(StationLocationControl.java:953) > at > ucar.unidata.idv.control.StationModelControl.init(StationModelControl.java:508) > at > ucar.unidata.idv.control.StationLocationControl.init(StationLocationControl.java:294) > at > ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1423) > at > ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1106) > at ucar.unidata.idv.ControlDescriptor.initControl(ControlDescriptor.java:986) > at ucar.unidata.idv.ControlDescriptor$1.run(ControlDescriptor.java:911) > at ucar.unidata.util.Misc$3.run(Misc.java:1249) > > > Ticket Details =================== Ticket ID: PBV-231059 Department: Support IDV Priority: Normal Status: Open