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Re: [las_users] The backend service threw an uncaught exception


Are you running Tomcat 5.5.25 and THREDDS 3.16?  Try putting the URL for the average (the value of data_0_url) into a browser with a .html at the end and see if F-TDS returns a valid OPeNDAP data access form.

A few bugs have shown up in the user defined variables/F-TDS interactions (especially with older versions of Tomcat).  Armstrong 1.1 which addresses those problems will be available very soon.


Tony Jolibois wrote:
    Hi all,

I continue testing LAS Armstrong...
Here is an exception I had when I tried to plot an average (part of a log file) :

IF `($data_count"0") EQ 1` THEN
!-> IF 1 THEN
   IF ($shade_underlay) THEN
      SHADE($qualifiers)/TITLE="($ferret_plot_title)"/SET ($ferret_var_0)
!-> SHADE/PALETTE=palette_BlueRed/TITLE="Sea water potential temperature_1 [ t= 01-Apr-2007 00:00:00 : 20-Nov-2007 00:00:00 @ave] (degC)"/SET temperature_regrid[d=1,X=54.392:97.448,Y=-1.148:-1.148,Z=0:1000]
" is not legal for a JDOM character content: 0x0 is not a legal XML character.
        at org.jdom.Text.setText(Text.java:188)
        at org.jdom.Text.<init>(Text.java:99)
        at org.jdom.Element.setText(Element.java:630)
        at gov.noaa.pmel.tmap.las.jdom.LASBackendResponse.addError(LASBackendResponse.java:579)
        at gov.noaa.pmel.tmap.las.service.ferret.FerretTool.run(FerretTool.java:240)
        at gov.noaa.pmel.tmap.las.service.ferret.FerretBackendService.getProduct(FerretBackendService.java:38)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.apache.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:397)
        at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:186)
        at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:323)
        ... 23 more
2007-11-15 10:15:41,904 DEBUG product.server.ProductServerRunner - Found error response.  Breaking out.
2007-11-15 10:15:41,909 DEBUG product.server.ProductServerRunner - ProductServerRunner finished.
2007-11-15 10:15:41,909 ERROR product.server.ProductServerAction - The backend service threw an uncaught exception
2007-11-15 10:15:41,910 ERROR product.server.ProductServerAction - org.xml.sax.SAXParseException: Premature end of file.

Any idea ?
Thank you,


CLS Space oceanography Division
Product Information and Diffusion
8-10 rue Hermes,
31526 Ramonville-St-Agne, Cedex, France

Email: tjolibois@xxxxxx
Tel: (+33) (0) 561 393 797

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