Re: Odd NoClassDefFoundError Error
Re: Odd NoClassDefFoundError Error
- Subject: Re: Odd NoClassDefFoundError Error
- From: Chuck Hill <email@hidden>
- Date: Wed, 8 Sep 2010 13:16:59 -0700
On Sep 8, 2010, at 1:07 PM, David Avendasora wrote:
> On Sep 8, 2010, at 3:07 PM, Chuck Hill <email@hidden> wrote:
>> On Sep 8, 2010, at 11:36 AM, David Avendasora wrote:
>>
>>> Okay, Steve Meyer figured it out.
>>>
>>> The app started up just fine, but the first time the "Inbox" class was called, it called it's superclass which has a static variable that loads a set of EOs from the database.
>>
>> That sounds a little... dangerous. ERXEnterpriseObjectCache anyone?
>
> Thanks for the discretion of not calling me stupid.
>
> To my face.
>
> Again.
>
> :-D
Well, now that we have bonded over a pig's head I feel that we are almost related.
> Yes, I think we'll be implementing that.
>
> Dave
>>
>>
>>
>>> That DB connection failed, which left the superclass uninitialized and therefor basically corrupt, and therefor the NoClassDefFoundError.
>>>
>>> I think we'll be digging around looking for more issues like this. Soon.
>>>
>>> Dave
>>>
>>> PS, Sorry about the lack of stack trace.
>>>
>>> On Sep 8, 2010, at 1:20 PM, Chuck Hill wrote:
>>>
>>>> Any exceptions in the log on start up? Were you upgrading something? Are you sure that this one instance did not just _not_ restart and so no see the new code?
>>>>
>>>> Chuck
>>>>
>>>>
>>>> On Sep 8, 2010, at 10:12 AM, David Avendasora wrote:
>>>>
>>>>> Hi all,
>>>>>
>>>>> Has anyone else ever seen this:
>>>>>
>>>>> We have a server that is running 4 instances of one of our apps. Last night we restarted one of the instances and apparently it didn't properly load 1 class that is part of one of our internal frameworks.
>>>>>
>>>>> Every time a user tried a feature that used that one class, we got java.lang.NoClassDefFoundError. The other instances of the same app started from the same files on the hard drive were running fine.
>>>>>
>>>>> We restarted the affected instance and that eliminated the problem.
>>>>>
>>>>> We couldn't find any errors in any of the logs that would explain why the class wouldn't have properly loaded.
>>>>>
>>>>> It's all fine now, but this was a very strange issue.
>>>>>
>>>>> Anyone ever run into something like that?
>>>>>
>>>>> Dave _______________________________________________
>>>>> Do not post admin requests to the list. They will be ignored.
>>>>> Webobjects-dev mailing list (email@hidden)
>>>>> Help/Unsubscribe/Update your Subscription:
>>>>>
>>>>> This email sent to email@hidden
>>>>
>>>> --
>>>> Chuck Hill Senior Consultant / VP Development
>>>>
>>>> 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
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>
>> --
>> Chuck Hill Senior Consultant / VP Development
>>
>> 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
>>
>>
>>
>>
>>
>>
>>
--
Chuck Hill Senior Consultant / VP Development
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
Attachment:
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden