Re: XPath NoClassDefFoundError

Tue, 29 Jan 2008 15:24:16 -0800 

yes, that was it, phew, now I "hopefully" got it.

thanks again,
Jeff


On Jan 29, 2008, at 4:58 PM, Chuck Hill wrote:



On Jan 29, 2008, at 2:41 PM, Jeff Schmitz wrote:


Looking in the directory you reference, the jar's aren't there.
I also don't see them referenced in the MacOSClasspath.txt file. I really do have the below line in my build.xml file that I use to build my deployment build.
Also, the code that is getting the error is down in a referenced framework that I also build. I've included the jars in both projects and have tried (apparently unsuccessfully) to build them into both projects. 

Any idea now why they aren't getting included?
I'd guess the build.xml is wrong. What does the project directory structure look like in Eclipse? If it is not this: 

Project/
        Libraries/
                jars/
                        some.jar

Then this:

                <lib dir="Libraries">
                        <include name="jars/*.jar"/>
                        <exclude name="**/*.woa/**"/>
                </lib>



Is not going to match.


Chuck



On Jan 29, 2008, at 4:20 PM, Chuck Hill wrote:



On Jan 29, 2008, at 1:56 PM, Jeff Schmitz wrote:


Hello,
 Once again I find myself of classpath/jar hades.


:-P



I have the following code that runs on my development machine fine:
FileInputStream is = new FileInputStream(this.poolDir + poolName + "/" + Constants.FILENAME_PROPERTIES); 
                                
                SAXBuilder builder = new SAXBuilder();
                Document propertiesDoc = builder.build(is);
                XPath xPath = XPath.newInstance(Constants.XPATH_TAGLINE);
However, when I deploy, I get the below exception on the Xpath xPath = ... line.
Are you certain this is not on this line? Perhaps the code on your machine and on the server is different (different line numbers)? 


                SAXBuilder builder = new SAXBuilder();




java.lang.NoClassDefFoundError: org/jdom/input/SAXBuilder
     at com.netBrackets.core.FileIO.getTagline(FileIO.java:49)
at com.netBrackets.core.SponserConfig.<init>(SponserConfig.java:29) 
     at UserInfoWindow.<init>(UserInfoWindow.java:127)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun .reflect .NativeConstructorAccessorImpl .newInstance(NativeConstructorAccessorImpl.java:39) at sun .reflect .DelegatingConstructorAccessorImpl .newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:494) at com .webobjects .foundation._NSUtilities.instantiateObject(_NSUtilities.java:575) at com .webobjects .appserver ._private .WOComponentDefinition ._componentInstanceInContext(WOComponentDefinition.java:463) at com .webobjects .appserver ._private .WOComponentDefinition .componentInstanceInContext(WOComponentDefinition.java:573) at com .webobjects .appserver.WOApplication.pageWithName(WOApplication.java:1954) at com .webobjects.appserver.WOComponent.pageWithName(WOComponent.java: 1200) 
     at PoolLogin.login(PoolLogin.java:125)
I've setup my build I think to include all the needed jar files (I put them in a jars subdirectory of my project - all from here: http://www.jdom.org/) according to this: 


<target name="build.woapp">
        ....
        <woapplication ...>
                ...
                <lib dir="Libraries">
                        <include name="jars/*.jar"/>
                        <exclude name="**/*.woa/**"/>
                </lib>
        </woapplication>
</target>
And since there's no error on the below two lines I'm thinking the jars are getting included in my deployed build (btw, is there any way I check for sure that the jars are included by looking at the deployment bundle?)
Look in AppName.woa/Contents/Resources/Java and also (very, very carefully) at the classpath at AppName.woa/Contents/MacOS/ MacOSClassPath.txt 




SAXBuilder builder = new SAXBuilder();
                Document propertiesDoc = builder.build(is);
So, any ideas why it can't seems to find the SAXBuilder class on my deployment machine when it does find it on the development machine? Seems I can never deploy any new jars without running into trouble like this, wish I could figure it out once and for all.
If the above does not show the problem, the next place to look is / Library/Java/Extensions and /Library/WebObjects/Extensions for conflicting versions. 

Chuck


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Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems. 
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--
Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems. 
http://www.global-village.net/products/practical_webobjects







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