Re: WebObjects jar frameworks and classpaths
Re: WebObjects jar frameworks and classpaths
- Subject: Re: WebObjects jar frameworks and classpaths
- From: John Pollard <email@hidden>
- Date: Thu, 8 Jan 2009 16:14:33 +0000
List,
I have now updated my build.xml file from a new dummy application
created using the latest WOLips as advised in the WOLips blog for the
new hotness. I also did this for my WO framework that contains the
jars I need to link in to, using a new dummy framework.
Now I get sight of my problem a step earlier, when trying to install
(WOLips Ant Tools, Install), where I see:
/Users/john/EclipseWork/workspace/MPMall/Sources/mpMall/
SyndicationFeedBuilder.java:15: package com.sun.syndication.feed.synd
does not exist
[wocompile] import com.sun.syndication.feed.synd.*;
...[snip]
Though there are still no errors showing in my actual code, this only
shows up when I try to install. If this package can't be found, why
doesn't it show in my source file?
When I look at the Java Build Path of my application after upgrading
to "hotness", I see that things that were previously listed as
dependent Projects in the Projects tab are now shown in the Libraries
tab as things like "MPServerEOs Framework". So what is now the
suggested way of adding dependent frameworks? I can still do so in the
Projects tab, but can't see how to confirm with what is now showing in
the Libraries tab; I can't see how to add my framework that contains
the jars and have it appear like the others now do as "MyJarFramework
Framework". Perhaps if I can solve this it will remove my compile
problem as the framework in question contains the jar that contains
the missing com.sun.syndication.feed.synd package in the error message.
Thanks again
John
On 8 Jan 2009, at 14:01, John Pollard wrote:
Lachlan,
Many thanks for your reply. I have updated to the latest Eclipse
3.4.1 and the latest WOLips nightly, but that does not resolve this
issue. I am also posting to the rome mailing list to try from that
angle, but a nightly build of the latest rome jar didn't help either.
I also tried adding the two jars to my application directly, cutting
out the framework, but got the same outcome.
The rome jar only depends on the jdom dar, so shouldn't be too
complicated. I will post back if I eventually find the reason for
this.
John
On 6 Jan 2009, at 23:31, Lachlan Deck wrote:
Hi John,
On 07/01/2009, at 12:18 AM, John Pollard wrote:
A bit off topic, but I am struggling to make sense of this. Simply
put I want to understand why I can't put a couple of jars into a
WO framework and have the code still work as it does when the same
jars are in /Library/Java/Extensions.
Not really off topic. This is a classpath issue.
Created a new WebObjects framework.
Manually moved two jar files (rome-1.0RC1.jar and jdom.jar) out
of /Library/Java/Extensions into the new framework project's /
Libraries sub folder
Good.
In Java Build Path properties, Libraries tab, Add Jars.. to add
them in, then in the Order and Export tab tick them
Good.
In the app project, add the new framework as a dependency
Eclipse shows no compile time problems, so why the runtime error:
[java.lang.NoClassDefFoundError] com/sun/syndication/io/
ModuleGenerator
I will be very grateful for any pointers to help me solve this
one; in particular why/when Eclipse is happy at compile time, but
actually the classes are not found when run.
Are you running WOLips nightly and Eclipse 3.4.x? If not you might
need to update WOLips/Eclipse to get the fix that I think went in
late November.
The class that is not found is definitely in the rome jar.
Search the archives for Transitive. It's a transitive dependency
problem.
with regards,
--
Lachlan Deck
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