Re: NoClassDefFoundError?
Re: NoClassDefFoundError?
- Subject: Re: NoClassDefFoundError?
- From: Chuck Hill <email@hidden>
- Date: Tue, 28 Mar 2006 10:40:15 -0800
On Mar 28, 2006, at 9:43 AM, Ian Coleman wrote:
I have have gone as far as reinstalling xcode and still none of my
projects will run. Any other ideas? I am running on xcode 2.2 w/
component versions
Xcode IDE: 655.0
Xcode Core: 658.0
ToolSupport: 651.0
All permissions seem to be correct, files are all there, and the
only thing that had changed since the last time the projects ran
was that I had run Software Updater and it installed 3 new updates,
don't remember what they were but could that even make any difference?
Uh, yes! It could. But not knowing what you updates will make that
rather challenging to track down.
Can you still _build_ the applications? Do a Clean and Build to make
sure. If not, possibly that jar file is damaged or has some
incorrect access restrictions. If you can do a full build and not a
run, the problem lies elsewhere. Perhaps you updated to Java 5? It
is possible that may cause a problem.
Failing that, look at Ray's points 2 (possibly may be that your app
jars are not built correctly) and 4. Try repairing permissions on
that drive.
Chuck
Ray Kiddy wrote:
On Mar 27, 2006, at 2:03 PM, Ian Coleman wrote:
yes it is in there, here is the whole Run Log:
<snip>
AssetManager has exited with status 1.
Chuck Hill wrote:
That seems to suggest that /System/Library/Frameworks/
JavaWebObjects.framework/Resources/Java/javawebobjects.jar is
not on the classpath or can't be read (due to lack of
permisssions). Is JavaWebObjects included in the frameworks?
Do you see it on the classpath when the app launches?
Chuck
You really need to check the whole tool chain.
When things go to heck in a handbasket, you need to check all
your assumptions. Remember, any time you "ASSUME", you make a you-
know- what out of you and Uma Thurman....
1) What jars do you think you are using? (Seems you have a handle
on that.)
2) Are those the right jar files? If you look in the file system,
do those jar files actually exist? Can you read them? Do they
actually contain the classes you expect? You can do check with
such as:
% jar tf /System/Library/Frameworks/JavaWebObjects.framework/
Resources/Java/javawebobjects.jar
If you are able to do this and you see the class "com/webobjects/
appserver/WOApplication.class", then that is covered.
3) Are you actually using the right jar? Look in the
MacOSClassPath.txt file. This is probably ok, given the output
that you see from the application, but it is good to check.
4) If you invoke the application manually, constructing the
classpath that you think is needed, does it work any different?
It is theoretically possible that one of the other things I see
on your classpath, being things I do not really recognize, may be
doing something to set your default class loader or change the
behavior of the default class loader. That would be "a bad thing".
Sometimes one just to follow all the dots.
One of my favorite random things is this. Have you put this on a
UFS file system? Taking something off a case-insensitive file
system like HFS+ and moving it onto a case-sensitive file system
like UFS can lead to hours of fun for the whole family.
Good luck.
- ray
ps: Always good to have in these posts: OS version, Dev Tools
versions, any other random things you install....
On Mar 27, 2006, at 1:30 PM, Ian Coleman wrote:
I can not figure out how to fix this problem, mainly because
I don't know how I did it. None of my WO projects will run
any more, they all exit with status 1. Even if I just create
a D2W, it still exits with status 1. They all have this in
the Run Log:
.....
/Library/WebObjects/Extensions/
java.lang.NoClassDefFoundError: com/webobjects/appserver/
WOApplication
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
at java.security.SecureClassLoader.defineClass
(SecureClassLoader.java:123)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:251)
at java.net.URLClassLoader.access$100(URLClassLoader.java:55)
at java.net.URLClassLoader$1.run(URLClassLoader.java:194)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
at java.lang.ClassLoader.loadClass(ClassLoader.java:282)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:
274)
at java.lang.ClassLoader.loadClass(ClassLoader.java:282)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at com.webobjects._bootstrap.WOBootstrap.main
(WOBootstrap.java: 68)
AssetManager has exited with status 1.
Thanks
ian
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