[windup-dev] Auto-discard notification

Tue Apr 7 09:29:47 EDT 2015

Yes, I think this was resolved.

> Haven't heard anything back on this. Is is solved ?
>
> Anything I can/need to do ?
>
> /max
>
> Is there a bug where we can add/share info instead of email ?
>
> How do I reproduce this ?
>
> I haven't used the latest windup tooling so could use some guidance.
>
> And I can try take a look after (if lucky during) next week Newcastle 
> meetup.
>
> ...but my guess is this is more a Lincoln question since he is the 
> Furnace class loader master mind
>
> ...btw. any reason why we don't just run windup externally from the 
> eclipse tooling and avoid any
> of this stuff ?
>
> /max
>
>> Adding Koen and George who may be able to help. Dropping Cat and Burr
>>
>>> On 27 Mar 2015, at 12:38, Ian Tewksbury <itewk at redhat.com> wrote:
>>>
>>> Adding resources from the JBDS team in case they were interested in 
>>> trying to help solve these class loading issues.
>>>
>>> Blue Skies,
>>> ~Ian
>>>
>>> From: "Ian Tewksbury" <itewk at redhat.com>
>>> To: "Lincoln Baxter" <lbaxter at redhat.com>, "Jess Sightler" 
>>> <jsightle at redhat.com>, "Pete Muir" <pmuir at redhat.com>
>>> Cc: "Windup-dev List" <windup-dev at lists.jboss.org>
>>> Sent: Friday, March 27, 2015 8:35:15 AM
>>> Subject: [windup-dev] previously initiated loading for a different 
>>> type with name "org/jboss/forge/furnace/util/Predicate"
>>>
>>> Lincoln and Jess,
>>>
>>> I have spent another evening trying to defeat this class loading 
>>> error with no luck.
>>>
>>> What I have tried:
>>> Debugging CompositeFurnaceClassLoader
>>> changed #loadClass to #findClass as per ClassLoader suggestion, 
>>> didn't help
>>> put break point in #findClass to see how many times it is called for 
>>> org.jboss.forge.furnace.util.Predicate, it is only being called 
>>> once, and on that one call it is failing with the LinkageError, this 
>>> makes 0 sense to me since the error says that it has already been 
>>> loaded
>>> Tried various combinations of checking to see if the class has 
>>> already been loaded, no luck
>>> Tried creating a cache of already loaded classes, didn't help, which 
>>> makes sense because the #findClass method (or #loadClass if you dont 
>>> use my change) only gets called once for this class.
>>> I have updated the windup-eclipse plugin to use the latest furnace 
>>> version, 2.15.2.Final, didn't make a difference
>>> I have updated the windup-eclipse plugin to use the latest Windup 
>>> 2.2.0 Release, plus my changes to add default constructor to 
>>> WindupService and FileService
>>> I have stopped using my custom loadType function I was talking about 
>>> earlier, that was a red hearing I believe
>>> I have spent hours googling this error message with no solution path 
>>> to be fund
>>> At this point I am totally blocked. I don't know what to try next.
>>>
>>> My latest code is here:
>>>
>>> plugin - 
>>> https://github.com/windup/windup-eclipse-plugin/tree/windup2 
>>> <https://github.com/windup/windup-eclipse-plugin/tree/windup2>
>>> windup - https://github.com/itewk/windup/tree/windup-eclipse 
>>> <https://github.com/itewk/windup/tree/windup-eclipse>
>>> * as a reminder you can't use SNAPSHOT versions for WINDUP when 
>>> compiling the windup eclipse plugin with local changes to Windup 
>>> because it will always pull the snapshot from the remote repository 
>>> and ignore your local changes, unless using releases in which case 
>>> maven looks at the local repo first
>>>
>>> Has anyone been able to try and reproduce this themselves yet?
>>> Has anyone been able to look over my WindupServices class to make 
>>> sure I am properly using Forge/Furnace to access Windup?
>>>
>>> I am either doing something really dumb on my end when trying to 
>>> access Windup or there is a bug/logic error with the 
>>> CompositeFurnaceClassLoader.
>>>
>>> Blue Skies,
>>> ~Ian
>>>
>>> !ENTRY org.eclipse.core.jobs 4 2 2015-03-27 08:04:51.234
>>> !MESSAGE An internal error occurred during: "Validating".
>>> !STACK 0
>>> java.lang.LinkageError: loader constraint violation: loader 
>>> (instance of 
>>> org/jboss/tools/forge/core/internal/furnace/CompositeFurnaceClassLoader) 
>>> previously initiated loading for a different type with name 
>>> "org/jboss/forge/furnace/util/Predicate"
>>> at java.lang.Class.getDeclaredMethods0(Native Method)
>>> at java.lang.Class.privateGetDeclaredMethods(Class.java:2615)
>>> at java.lang.Class.getDeclaredMethods(Class.java:1860)
>>> at 
>>> org.jboss.forge.furnace.proxy.javassist.util.proxy.SecurityActions.getDeclaredMethods(SecurityActions.java:30)
>>> at 
>>> org.jboss.forge.furnace.proxy.javassist.util.proxy.RuntimeSupport.findMethod2(RuntimeSupport.java:134)
>>> at 
>>> org.jboss.forge.furnace.proxy.javassist.util.proxy.RuntimeSupport.findMethod(RuntimeSupport.java:65)
>>> at 
>>> org.jboss.forge.furnace.proxy.javassist.util.proxy.RuntimeSupport.find2Methods(RuntimeSupport.java:53)
>>> at 
>>> org.jboss.windup.exec.configuration.WindupConfiguration_$$_javassist_bdf99157-4ab9-4bb9-a9ec-03565e9d16d6.<clinit>(WindupConfiguration_$$_javassist_bdf99157-4ab9-4bb9-a9ec-03565e9d16d6.java) 
>>>
>>> at sun.misc.Unsafe.ensureClassInitialized(Native Method)
>>> at 
>>> sun.reflect.UnsafeFieldAccessorFactory.newFieldAccessor(UnsafeFieldAccessorFactory.java:43)
>>> at 
>>> sun.reflect.ReflectionFactory.newFieldAccessor(ReflectionFactory.java:140)
>>> at java.lang.reflect.Field.acquireFieldAccessor(Field.java:1057)
>>> at java.lang.reflect.Field.getFieldAccessor(Field.java:1038)
>>> at java.lang.reflect.Field.set(Field.java:741)
>>> at 
>>> org.jboss.forge.furnace.proxy.javassist.util.proxy.ProxyFactory.setField(ProxyFactory.java:525)
>>> at 
>>> org.jboss.forge.furnace.proxy.javassist.util.proxy.ProxyFactory.createClass3(ProxyFactory.java:508)
>>> at 
>>> org.jboss.forge.furnace.proxy.javassist.util.proxy.ProxyFactory.createClass2(ProxyFactory.java:492)
>>> at 
>>> org.jboss.forge.furnace.proxy.javassist.util.proxy.ProxyFactory.createClass1(ProxyFactory.java:428)
>>> at 
>>> org.jboss.forge.furnace.proxy.javassist.util.proxy.ProxyFactory.createClass(ProxyFactory.java:400)
>>> at 
>>> org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback$3.call(ClassLoaderAdapterCallback.java:987)
>>> at 
>>> org.jboss.forge.furnace.util.ClassLoaders.executeIn(ClassLoaders.java:42)
>>> at 
>>> org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.enhance(ClassLoaderAdapterCallback.java:900)
>>> at 
>>> org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.enhanceResult(ClassLoaderAdapterCallback.java:253)
>>> at 
>>> org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.access$200(ClassLoaderAdapterCallback.java:37)
>>> at 
>>> org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback$2.call(ClassLoaderAdapterCallback.java:124)
>>> at 
>>> org.jboss.forge.furnace.util.ClassLoaders.executeIn(ClassLoaders.java:42)
>>> at 
>>> org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.invoke(ClassLoaderAdapterCallback.java:96)
>>> at 
>>> org.jboss.forge.furnace.services.Imported_$$_javassist_48ac554d-8d60-4d09-8f17-c0a42f2c85b7.get(Imported_$$_javassist_48ac554d-8d60-4d09-8f17-c0a42f2c85b7.java) 
>>>
>>> at 
>>> org.jboss.tools.forge.core.furnace.FurnaceService.lookup(FurnaceService.java:96)
>>> at 
>>> org.jboss.tools.windup.core.WindupService.getServiceFromFurnace(WindupService.java:485)
>>> at 
>>> org.jboss.tools.windup.core.WindupService.generateGraph(WindupService.java:226)
>>> at 
>>> org.jboss.tools.windup.core.WindupService.getGraph(WindupService.java:301)
>>> at 
>>> org.jboss.tools.windup.core.WindupService.getInlineHints(WindupService.java:103)
>>> at 
>>> org.jboss.tools.windup.core.internal.validators.WindupValidator.validate(WindupValidator.java:81)
>>> at 
>>> org.eclipse.wst.validation.Validator$V2.validate(Validator.java:1159)
>>> at 
>>> org.eclipse.wst.validation.internal.ValManager.validate(ValManager.java:704)
>>> at 
>>> org.eclipse.wst.validation.internal.ValManager$1.visit(ValManager.java:665)
>>> at 
>>> org.eclipse.wst.validation.internal.ValManager.accept(ValManager.java:810)
>>> at 
>>> org.eclipse.wst.validation.internal.ValManager.validate(ValManager.java:669)
>>> at 
>>> org.eclipse.wst.validation.internal.ValidationRunner.execute(ValidationRunner.java:134)
>>> at 
>>> org.eclipse.wst.validation.internal.ValidationRunner.validate(ValidationRunner.java:68)
>>> at 
>>> org.eclipse.wst.validation.ui.internal.ManualValidationRunner.runInWorkspace(ManualValidationRunner.java:83)
>>> at 
>>> org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
>>> at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
>>>
>>> _______________________________________________
>>> windup-dev mailing list
>>> windup-dev at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/windup-dev
>>>