Xerces 2.5.0 Classpath problems

[bateman23]

Hi,

i'm running JDK 1.4.1 and tried to use the latest Apache Xerces Package. I downloaded everything and extracted the files to "D:\Development\xerces-2_5_0\".
In my book it's said you have to add the xerces.jar file to the classpath. Ok, i know this file doesn't exist any more in Version 2.5.0. The install.html gives hints and says to add the two files xercesImpl.jar and xml-apis.jar instead.
So i did. But still trying to use "import org.apache.xerces.parsers.DOMParser;" just gives me the error message:
"W3DomTest.java:17: package org.apache.xerces.parsers does not exist"

What's wrong ?
Thanx in advances,
Daniel

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http://www.daniel-purucker.de/

 

[sedj]

A few things to check :

- Are there any conflicting or older packages/classes on the CLASSPATH ?
- Are your jar files really on the CLASSPATH (chuck them in /jre/lib/ext and they will be picked up automatically)
- Open the jar files with something like WinZip or the "jar" tool, and check that the classes/packages you are trying to import/reference are actually in the jar file.

 

[bateman23]

Hi sedj, thanx so far.
Afaik there are no conflicts. Here is my whole Classapth:

D:\Development\JDOM\jdom-b9\build\jdom.jar;
D:\Development\xerces2_5_0\xercesImpl.jar;
D:\Development\xerces2_5_0\xml-apis.jar;
D:\Development\xerces2_5_0\xercesSamples.jar;
.;
D:\JBuilder8\jdk1.4\bin;E:\XML-Test

I copied the files above to /jre/lib/ext but that also didn't work.
Anyway: I'm trying to import that stuff through:

import org.apache.parsers.DOMParser;

But how does Java know where to look for the org packages ?
Somehow i'm a little confused...
For example i found another jdom.jar (that package works fine) in the lib-Pah of JBuilder8 (which i've also installed, but don't use at the moment). So i copied the Xerces Files into that directory. Didn't work...
Perhaps i have to rename the paths somehow ?

---------------------------------------
Visit me @:

http://www.daniel-purucker.de/

 

[sedj]

Java knows where the "org" packages are, becasue it takes the directory of the jar file, and then makes sure that each sub-dir within the jar contains what is in the "import" statement - so an import of a package "com.acme.test.*" would need to reflect in a jar file as a directory structure as

 com
        |--
           acme
             |
              --
                test

if you see what I mean ...

- Have you checked the files are in the jar files (Open the jar files with something like WinZip or the "jar" tool, and check that the classes/packages you are trying to import/reference are actually in the jar file.)

- Make sure that no classes clash between your xerces ajrs and your jdom.jar.

- Are you sure that the classpath is defined as "CLASSPATH" (ie upper case). Type "set CLASSPATH" in your console to check the path again ....

- Failing that, as a stop-gap, unzip all the jar files into a directory and try it from there using a

javac -classpath . Test

, making sure that your Test.class file is in directory "." - with the org/* packages underneath.