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Re: [tigerstripe-users] Velocity classloader error"java.lang.NoClassDefFoundError: org/apache/log/format/Formatter"
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Hi Steve/Eric,
Thanks for the replies.
Sorry, I was in a travel and could not check the mails.
I noticed that I have some problems with velocity macros (not all of
Iext are replaced and also Expander seems to be internal now. So, I
have to change the templates a bit).
The code generation is successful now.
I am also doing with a freshly installed eclipse.
But it looks like when ever there is a problem with velocity templates
this error is appearing as default velocity.properties is referring to
unavailable logger. This is not fatal to generation but it dumps error
in velocity.log
I have request on the logger whether we can customize the same. I need
to have all logs under specified directory (including velocity.log).
Is there any possibility to provide this via "preferences" window?
Here is some info from velocity that helps with this.
http://velocity.apache.org/engine/releases/velocity-1.5/developer-guide.html#velocity_configuration_keys_and_values
http://velocity.apache.org/engine/releases/velocity-1.5/developer-guide.html#configuring_logging
I checked part of tigerstipe source and found that only classpath and
resourceloaders seem to be customized for velocity. It would be useful
if the logger can be customizable too. Please let me know if this
sounds feasible.
Thanks & Regards
Kalyan
On Wed, May 7, 2008 at 7:37 PM, Steve Jerman (stjerman)
<stjerman@xxxxxxxxx> wrote:
> You also might want to use a fresh install of Eclipse. As Eric says we
> have never run into this problem. I wonder - what version of Eclipse are
> you using and do you have any other 'special' plugins installed? I
> wonder if it is a conflict with something else.
>
> Steve
>
> -----Original Message-----
> From: tigerstripe-users-bounces@xxxxxxxxxxx
> [mailto:tigerstripe-users-bounces@xxxxxxxxxxx] On Behalf Of KV
> Sent: Tuesday, May 06, 2008 5:29 PM
> To: Tigerstripe Users list
> Subject: Re: [tigerstripe-users] Velocity classloader
> error"java.lang.NoClassDefFoundError: org/apache/log/format/Formatter"
>
> Eric,
>
> I logged a request in bugzilla.
> I tried already with a clean workspace. I am planning to do it again and
> i will update on this.
>
> - Kalyan
>
> On Wed, May 7, 2008 at 12:39 AM, Eric Dillon <erdillon@xxxxxxxxx> wrote:
>> I am still confused. Why is it that you are running into this error,
>> when we don't. We have been using this for close to a year in
> production at Cisco...
>> And didn't encounter that problem, although both our models and
>> generation plugins are quite involved.
>>
>> How about starting from scratch? Have you tried to use a clean
>> workspace, new project, simple template to isolate this issue?
>>
>> The Velocity-1.5.jar that we include in the plugins is straight
>> out-of-the-box from the Apache velocity site (we can distribute the
>> binary without touching it. Distributing a modified version would
>> need to be reviewed by Eclipse Legal). We haven't had to change any
>> of the default settings yet to my best knowledge.
>>
>> Dumping the classpath of a generation plugin is certainly an option.
>> Would you mind logging this as bug in Bugzilla? I could add this in
>> the code so you could pick it up from a nightly build if that helps?
>>
>> Eric
>>
>>
>>
>> On 5/6/08 4:21 PM, "KV" <kalyan.abbaraju@xxxxxxxxx> wrote:
>>
>> > Hi Eric,
>> >
>>
>>
>> > Thanks for the details. I got a picture on the lib directory.
>> > As you suggested I tried to add this Avalon logging jar to my
>> plug-in > dependency list velocity did not pick up. May be I have
>> done some > thing wrong. I still have to check on this.
>> >
>> >> From the stack trace, class loading seems to be failing in >
>> VelocityEngine.init() itself. I do not think macro execution started
>> > at all. But to confirm it I am trying to debug it further.
>> > Based on velocity manuals (links below) and velocity-1.5 source
>> code, > the default value for the log class is Apache Avalon. since
>> the > relevant jar is not present velocity initialization is
> failing.
>> >
>> >
>> http://velocity.apache.org/engine/releases/velocity-1.5/developer-guid
>> e.html#v > elocity_configuration_keys_and_values
>> >
>> >
>> http://velocity.apache.org/engine/releases/velocity-1.5/developer-guid
>> e.html#c
>> > onfiguring_logging
>> >
>> > For your reference, here is the content from > >
>> velocity-1.5\src\java\org\apache\velocity\runtime\defaults\velocity.pr
>> operties
>> > runtime.log.logsystem.class =
>> >
>> >
>> org.apache.velocity.runtime.log.AvalonLogChute,org.apache.velocity.run
>> time.log > .Log4JLogChute,org.apache.velocity.runtime.log.JdkLogChute
>> > runtime.log = velocity.log
>> >
>> > I have some more questions:
>> > - Based on the above information is there any possibility of
>> > changing run time logger for velocity in tigerstripe? At least can
>> it > be a
>> > minor requirement for future releases?
>> > - Is there any way to dump the classpath in tigerstipe.log or
> some
>> > other log during the plugin generation?
>> >
>> > Regards
>> > Kalyan
>> >
>> >
>> >> On Tue, May 6, 2008 at 11:03 PM, Eric Dillon <erdillon@xxxxxxxxx>
> wrote:
>> >>> Hi Kalyan,
>> >>>
>> >>> See my comments/responses inline.
>> >>>
>> >>> Still, I'm surprise we haven't run into this here. Are you able
>> to figure >>> out what is the trigger of all this in the velocity
> templates you're using?
>> >>>
>> >>> Eric
>> >>>
>> >>>
>> >>>
>> >>> On 5/6/08 2:52 PM, "KV" <kalyan.abbaraju@xxxxxxxxx> wrote:
>> >>>
>> >>>> Hi Eric,
>> >>>>
>> >>>> Yes. The generation is completely failing. I did ensure that I
>> am >>>> using only one velocity jar file.
>> >>>> And also I have posted this question in velocity users list
>> also. But >>>> at the moment i did not get any new answer. I am
>> currently planning to >>>> check the following two options.
>> >>>>
>> >>>> 1) Include the relevant jar
>> >>>> I checked for the class "org/apache/log/format/Formatter" and I
>> found >>>> it in avalon-logkit-current.jar from apache.
>> >>>> I downloaded this jar and copied to tigerstripe/lib directory to
>
>> >>>> verify it works. But no luck.
>> >>> Well, the tigerstripe/lib is only used when running Tigerstripe
>> headless >>> (i.e. Outside of the IDE from Maven e.g.). So if you
>> added the .jar there >>> it >>> would not have been picked up.
>> >>> You want to package it with your generation plugin as an
>> additional >>> classpath entry. This way the content of the .jar is
>> going to be available >>> to velocity at runtime. To do so, copy it
> in your generation project.
>> >>> Open the ts-plugin.xml and on the "runtime" tab, add the .jar as
>
>> a >>> classpath >>> entry. Save the ts-plugin.xml file.
>> >>>
>> >>> Try to re-deploy and run.
>> >>>
>> >>>
>> >>>>
>> >>>> 2) Check with velocity if another log instance can be used. for
>> example >>>> log4j.
>> >>>> At the moment i am working on this. I can update you once I am
>> >>>> successful in this.
>> >>>>
>> >>>> But I would like to understand the relevance of tigerstripe/lib
>
>> >>>> directory under eclipse? Can you please enlighten me under what
>> >>>> circumstances I can use this directory?
>> >>>> Also if you have any other suggestions it would help me a lot.
>> >>> As mentioned above, this tigerstripe/lib is only relevant when
>> running >>> headless. Any .jar that needs to be visible from a
>> generation plugin should >>> be packaged as an additional classpath
> entry as explained above.
>> >>>
>> >>> This was designed so that you can include any .jar in the code
>> of a >>> generation plugin.
>> >>>
>> >>>
>> >>>>
>> >>>> Thanks & Best Regards
>> >>>> Kalyan
>> >>>>
>> >>>> On Tue, May 6, 2008 at 5:30 PM, Eric Dillon <erdillon@xxxxxxxxx>
> wrote:
>> >>>>> Hi Kalyan,
>> >>>>>
>> >>>>> I am afraid I don't know what is going on here. I am tempted
>> however to >>>>> blame it on velocity :-).
>> >>>>>
>> >>>>> I did google the exception and saw your post on some other
>> forum. I saw a >>>>> note there about having multiple instances of
>> the velocity-1.5.jar which >>>>> is >>>>> not the case here.
>> >>>>>
>> >>>>> Now, what are the symptoms of the error (beyond the log in the
> mail)?
>> >>>>> Does
>> >>>>> your generation fail completely?
>> >>>>>
>> >>>>> Eric
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>> On 5/2/08 11:54 AM, "KV" <kalyan.abbaraju@xxxxxxxxx> wrote:
>> >>>>>
>> >>>>>> Hi,
>> >>>>>>
>> >>>>>> I am getting the following class loader error while doing the
>
>> code >>>>>> generation with my plugin. I tried to include both log4j
>> and >>>>>> commons-logging explicitly to project class path. But it
> did not help.
>> >>>>>>
>> >>>>>> Can you please suggest a solution?
>> >>>>>> 2008-05-02 19:41:51,515 - Log4JLogChute initialized using file
>
>> >>>>>> 'velocity.log'
>> >>>>>> 2008-05-02 19:41:51,515 - Starting Apache Velocity v1.5
> (compiled:
>> >>>>>> 2007-02-22 08:52:29)
>> >>>>>> 2008-05-02 19:41:51,515 - Default Properties File:
>> >>>>>> org\apache\velocity\runtime\defaults\velocity.properties
>> >>>>>> 2008-05-02 19:41:51,515 - Trying to use logger class >>>>>>
>> org.apache.velocity.runtime.log.AvalonLogChute
>> >>>>>> 2008-05-02 19:41:51,515 - Couldn't find class >>>>>>
>> org.apache.velocity.runtime.log.AvalonLogChute or necessary supporting
>
>> >>>>>> classes in classpath.
>> >>>>>> java.lang.NoClassDefFoundError:
>> org/apache/log/format/Formatter >>>>>> at
>> java.lang.Class.forName0(Native Method) >>>>>> at
>> java.lang.Class.forName(Unknown Source) >>>>>> at
>> org.apache.velocity.util.ClassUtils.getClass(ClassUtils.java:63)
>> >>>>>> at
>> org.apache.velocity.util.ClassUtils.getNewInstance(ClassUtils.java:95)
>> >>>>>> at
>> >>>>>>
>> org.apache.velocity.runtime.log.LogManager.createLogChute(LogManager.j
>> ava
>> >>>>>> :14
>> >>>>>> 7)
>> >>>>>> at
>> >>>>>>
>> org.apache.velocity.runtime.log.LogManager.updateLog(LogManager.java:2
>> 08)
>> >>>>>> at
>> >>>>>>
>> org.apache.velocity.runtime.RuntimeInstance.initializeLog(RuntimeInsta
>> nce
>> >>>>>> .ja
>> >>>>>> va
>> >>>>>> :728)
>> >>>>>> at
>> >>>>>>
>>
>> org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:
>> 240>>>>>>
>> )
>> >>>>>> at
>> >>>>>>
>>
>> org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:
>> 534>>>>>>
>> )
>> >>>>>> at
>> org.apache.velocity.app.VelocityEngine.init(VelocityEngine.java:144)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.tigerstripe.workbench.internal.core.project.pluggable.rule
>> s.T
>> >>>>>> emp
>> >>>>>> la
>> >>>>>>
>> teBasedRule.setClasspathLoaderForVelocity(TemplateBasedRule.java:329)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.tigerstripe.workbench.internal.core.project.pluggable.rule
>> s.A
>> >>>>>> rti
>> >>>>>> fa
>> >>>>>> ctBasedRule.trigger(ArtifactBasedRule.java:192)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.tigerstripe.workbench.internal.core.plugin.pluggable.Plugi
>> nRu
>> >>>>>> leE
>> >>>>>> xe
>> >>>>>> cutor.trigger(PluginRuleExecutor.java:102)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.tigerstripe.workbench.internal.core.plugin.pluggable.Plugg
>> abl
>> >>>>>> ePl
>> >>>>>> ug
>> >>>>>> in.trigger(PluggablePlugin.java:123)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.tigerstripe.workbench.internal.core.plugin.PluginHousing.t
>> rig
>> >>>>>> ger
>> >>>>>> (P
>> >>>>>> luginHousing.java:40)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.tigerstripe.workbench.internal.core.plugin.PluginConfig.tr
>> igg
>> >>>>>> er(
>> >>>>>> Pl
>> >>>>>> uginConfig.java:250)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.tigerstripe.workbench.internal.core.generation.M1Generator
>> .in
>> >>>>>> ter
>> >>>>>> na
>> >>>>>> lPluginLoop(M1Generator.java:610) >>>>>> at >>>>>>
>> org.eclipse.tigerstripe.workbench.internal.core.generation.M1Generator
>> .in
>> >>>>>> ter
>> >>>>>> na
>> >>>>>> lRun(M1Generator.java:553)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.tigerstripe.workbench.internal.core.generation.M1Generator
>> .ru
>> >>>>>> n(M
>> >>>>>> 1G
>> >>>>>> enerator.java:350)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.tigerstripe.workbench.eclipse.wizards.generate.NewTigerstr
>> ipe
>> >>>>>> Run
>> >>>>>> Wi
>> >>>>>> zard.finishPage(NewTigerstripeRunWizard.java:131)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.tigerstripe.workbench.eclipse.wizards.NewTSElementWizard$2
>> .ru
>> >>>>>> n(N
>> >>>>>> ew
>> >>>>>> TSElementWizard.java:193)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.jdt.internal.core.BatchOperation.executeOperation(BatchOpe
>> rat
>> >>>>>> ion
>> >>>>>> .j
>> >>>>>> ava:39)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperatio
>> n.j
>> >>>>>> ava
>> >>>>>> :7
>> >>>>>> 20)
>> >>>>>> at
>> org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1797)
>> >>>>>> at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:4466)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.jdt.internal.ui.actions.WorkbenchRunnableAdapter.run(Workb
>> enc
>> >>>>>> hRu
>> >>>>>> nn
>> >>>>>> ableAdapter.java:87)
>> >>>>>> at
>> >>>>>>
>> org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalC
>> ont
>> >>>>>> ext
>> >>>>>> .j
>> >>>>>> ava:113)
>> >>>>>> 2008-05-02 19:41:51,515 - Trying to use logger class >>>>>>
>> org.apache.velocity.runtime.log.Log4JLogChute
>> >>>>>> 2008-05-02 19:41:51,515 - Using logger class >>>>>>
>> org.apache.velocity.runtime.log.Log4JLogChute
>> >>>>>> 2008-05-02 19:41:51,515 - Default ResourceManager
>> initializing. (class >>>>>>
>> org.apache.velocity.runtime.resource.ResourceManagerImpl)
>> >>>>>> 2008-05-02 19:41:51,515 - ResourceLoader instantiated:
>> >>>>>> org.apache.velocity.runtime.resource.loader.FileResourceLoader
>> >>>>>>
>> >>>>>> Regards
>> >>>>>> Kalyan
>> >>>>>> _______________________________________________
>> >>>>>> tigerstripe-users mailing list >>>>>>
>> tigerstripe-users@xxxxxxxxxxx >>>>>>
>> https://dev.eclipse.org/mailman/listinfo/tigerstripe-users
>> >>>>>
>> >>>>> _______________________________________________
>> >>>>> tigerstripe-users mailing list >>>>>
>> tigerstripe-users@xxxxxxxxxxx >>>>>
>> https://dev.eclipse.org/mailman/listinfo/tigerstripe-users
>> >>>>>
>> >>>>
>> >>>>
>> >>>
>> >>> _______________________________________________
>> >>> tigerstripe-users mailing list
>> >>> tigerstripe-users@xxxxxxxxxxx
>> >>> https://dev.eclipse.org/mailman/listinfo/tigerstripe-users
>> >>>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >> --
>> >> Kalyan Abbaraju
>> >> Home +91 8066649703
>> >> Mobile +91 99005 16895
>> >>
>> >
>> >
>>
>> _______________________________________________
>> tigerstripe-users mailing list
>> tigerstripe-users@xxxxxxxxxxx
>> https://dev.eclipse.org/mailman/listinfo/tigerstripe-users
>>
>
>
>
> --
> Kalyan Abbaraju
> Home +91 8066649703
> Mobile +91 99005 16895
> _______________________________________________
> tigerstripe-users mailing list
> tigerstripe-users@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/tigerstripe-users
> _______________________________________________
> tigerstripe-users mailing list
> tigerstripe-users@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/tigerstripe-users
>
--
Kalyan Abbaraju
Home +91 8066649703
Mobile +91 99005 16895
