RE: LuaJava and JAXP

["Joao Machado" <joaocm2@...>]

Hi,

  This is a Java reflection problem. If you call this method by
reflection, even directly in Java, you get the same error. 

This google cached page shows it :
http://216.239.51.104/search?q=cache:UHFpr_aInjEJ:forum.java.sun.com/thr
ead.jsp%3Fforum%3D34%26thread%3D482916%26tstart%3D0%26trange%3D15+crimso
n.tree.ParentNode&hl=pt&ie=UTF-8

I don't know exactly what causes it. 
I have tried the same code with Xerces and GNUJAXP. With GNUJAXP I got
the same error, but in another method. 
With Xerces it worked as expected. 
So, I think that is a Java reflection problem and a specific
implementation problem (with crimson and GNUJAXP), and not a LuaJava
issue.

Regards,

João Machado
Tecnologia
Ideais

Tel.: 55 21 3114-1794
Cel.: 55 21 8124-3531
joaocm@ideais.com.br
http://www.ideais.com.br
 

> -----Original Message-----
> From: lua-bounces@bazar2.conectiva.com.br 
> [mailto:lua-bounces@bazar2.conectiva.com.br] On Behalf Of 
> Martin Kendall
> Sent: quarta-feira, 18 de fevereiro de 2004 08:21
> To: lua@bazar2.conectiva.com.br
> Subject: LuaJava and JAXP
> 
> 
> Hello,
> 
> 
> 
> I was very excited to see LuaJava - A very good way to have 
> the power and beauty of Lua combined with libraries and 
> ubiquity of Java.
> 
> 
> 
> I thought I would try a short program to see how it operated:
> 
> 
> 
> documentBuilderFactory =
> luajava.bindClass("javax.xml.parsers.DocumentBuilderFactory")
> 
> factory = documentBuilderFactory:newInstance()
> 
> builder = factory:newDocumentBuilder()
> 
> document = builder:parse("labels.xml")
> 
> root = document:getDocumentElement()
> 
> print(root:toString())
> 
> 
> 
> This worked beautifully (I'm using Java 1.4.1 on Windows XP) 
> with the file
> labels.xml:
> 
> <?xml version="1.0" encoding="iso-8859-1"?>
> 
> <labels>
> 
>   <label added="2003-06-20">
> 
>     <quote>
> 
>       <!-- Mixed content -->
> 
>       <emph>Midwinter Spring</emph> is its own season&#133;
> 
>     </quote>
> 
>     <name>Thomas Eliot</name>
> 
>     <address>
> 
>       <street>3 Prufrock Lane</street>
> 
>       <city>Stamford</city>
> 
>       <state>CT</state>
> 
>     </address>
> 
>   </label>
> 
>   <label added="2003-06-10">
> 
>     <name>Ezra Pound</name>
> 
>     <address>
> 
>       <street>45 Usura Place</street>
> 
>       <city>Hailey</city>
> 
>       <state>ID</state>
> 
>     </address>
> 
>   </label>
> 
> </labels>
> 
> 
> 
> However, when I added the following line to the program:
> 
> nodelist = root:getElementsByTagName("label")
> 
> 
> 
> I get this error:
> 
> xmltest.lua:7: Class luajava.LuaJavaAPI can not access a 
> member of class org.apache.crimson.tree.ParentNode with 
> modifiers "public"
> 
> luajava.LuaException: Error on file xmltest.lua
> 
>         at luajava.Console.main(Console.java:24)
> 
> 
> 
> I would really appreciate it if anyone could tell me what I 
> am doing wrong.
> 
> 
> 
> Thanks,
> 
> 
> 
> Martin
> 
> 
> 
> 
> 
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