[xwiki-devs] [GSOC][WEBDAV] Problem With Core Failing (XWikiCacheStore)

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Asiri Rathnayake

18 Jun 2008 18 Jun '08

9:11 p.m.

Hi All, I cannot test xwiki-webdav anymore because XWikiCacheStore throws a null pointer exception that i cannot figure out. I think this is introduced by a recent commit, please help me with this. Following is the exception, <dump> java.lang.NullPointerException at com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:95) at com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:80) at com.xpn.xwiki.store.XWikiCacheStore.<init>(XWikiCacheStore.java:62) at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:675) at com.xpn.xwiki.XWiki.<init>(XWiki.java:652) at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:312) at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:383) at com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:350) at com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:205) at com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105) at com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69) at com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206) at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:325) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:859) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) </dump> In XWikiCacheStore.initCache() method, CacheFactory cacheFactory = context.getWiki().getCacheFactory(); here, cacheFactory has become null. I've only found this problem and currently looking into it, if anyone can help me get over this quickly it would be a big help. Thanks. - Asiri

Show replies by date

Vincent Massol

18 Jun 18 Jun

9:15 p.m.

Yes this bug was introduced by Thomas' recent commit I guess. Thomas should be able to answer you tomorrow morning (GMT+1). Thomas, btw did you check if all XWiki entry points continue to work and especially XMLRPC and GWT? Thanks -Vincent On Jun 18, 2008, at 9:11 PM, Asiri Rathnayake wrote:

...

Hi All, I cannot test xwiki-webdav anymore because XWikiCacheStore throws a null pointer exception that i cannot figure out. I think this is introduced by a recent commit, please help me with this. Following is the exception, <dump> java.lang.NullPointerException at com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:95) at com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:80) at com.xpn.xwiki.store.XWikiCacheStore.<init>(XWikiCacheStore.java:62) at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:675) at com.xpn.xwiki.XWiki.<init>(XWiki.java:652) at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:312) at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:383) at com .xpn .xwiki .plugin .webdav .XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:350) at com .xpn .xwiki .plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java: 205) at com .xpn .xwiki .plugin .webdav .XWikiResourceFactoryImpl .createResource(XWikiResourceFactoryImpl.java:105) at com .xpn .xwiki .plugin .webdav .XWikiResourceFactoryImpl .createResource(XWikiResourceFactoryImpl.java:69) at com .xpn .xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: 363) at org .mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: 219) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: 181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: 738) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at org .mortbay .jetty .handler .ContextHandlerCollection.handle(ContextHandlerCollection.java:206) at org .mortbay .jetty.handler.HandlerCollection.handle(HandlerCollection.java:113) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: 152) at org.mortbay.jetty.Server.handle(Server.java:325) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: 535) at org.mortbay.jetty.HttpConnection $RequestHandler.headerComplete(HttpConnection.java:859) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391) at org .mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java: 410) at org.mortbay.thread.QueuedThreadPool $PoolThread.run(QueuedThreadPool.java:488) </dump> In XWikiCacheStore.initCache() method, CacheFactory cacheFactory = context.getWiki().getCacheFactory(); here, cacheFactory has become null. I've only found this problem and currently looking into it, if anyone can help me get over this quickly it would be a big help. Thanks. - Asiri

Thomas Mortagne

10:25 p.m.

Hi, This error append when you try to use cache component before ComponentManager initialization, it's not really related to cache itself. How do you reproduce this ? Is it in a unit test ? I don't have any problem in virtual or non virtual mode when using xwiki in standalone or from Eclipse.... On Wed, Jun 18, 2008 at 9:11 PM, Asiri Rathnayake <asiri.rathnayake(a)gmail.com> wrote:

...

-- Thomas Mortagne

Thomas Mortagne

10:28 p.m.

Also I just fixed a build bug : cache was not built when building from /trunks On Wed, Jun 18, 2008 at 10:25 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

...

-- Thomas Mortagne

Thomas Mortagne

10:43 p.m.

ok, I think the problem is that when the first connection is webdav ComponentManager is not initialized in Utils On Wed, Jun 18, 2008 at 10:28 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

...

Also I just fixed a build bug : cache was not built when building from /trunks On Wed, Jun 18, 2008 at 10:25 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

-- Thomas Mortagne

Thomas Mortagne

10:46 p.m.

Asiri, is webdav servlet use Utils.prepareContext to create/prepare the context ? (the Utils's ComponentManager is initialized in it) On Wed, Jun 18, 2008 at 10:43 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

...

ok, I think the problem is that when the first connection is webdav ComponentManager is not initialized in Utils On Wed, Jun 18, 2008 at 10:28 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

Also I just fixed a build bug : cache was not built when building from /trunks On Wed, Jun 18, 2008 at 10:25 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

-- Thomas Mortagne

Asiri Rathnayake

19 Jun 19 Jun

4:32 a.m.

Hi Thomas, Sorry for the late reply, i just woke up :) This is ludovic's original code, <code> context = Utils.prepareContext("", request, response, engine); context.setMode(XWikiContext.MODE_GWT); context.setDatabase("xwiki"); XWiki xwiki = XWiki.getXWiki(context); </code> So yes, Utils.prepareContext() is used but XWiki.getXWiki() fails. Thanks. - Asiri On Thu, Jun 19, 2008 at 2:16 AM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

...

ok, I think the problem is that when the first connection is webdav ComponentManager is not initialized in Utils On Wed, Jun 18, 2008 at 10:28 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote: > Also I just fixed a build bug : cache was not built when building from

/trunks

> > On Wed, Jun 18, 2008 at 10:25 PM, Thomas Mortagne > <thomas.mortagne(a)xwiki.com> wrote: >> Hi, >> >> This error append when you try to use cache component before >> ComponentManager initialization, it's not really related to cache >> itself. >> >> How do you reproduce this ? Is it in a unit test ? I don't have any >> problem in virtual or non virtual mode when using xwiki in standalone >> or from Eclipse.... >> >> On Wed, Jun 18, 2008 at 9:11 PM, Asiri Rathnayake >> <asiri.rathnayake(a)gmail.com> wrote: >>> Hi All, >>> >>> I cannot test xwiki-webdav anymore because XWikiCacheStore throws a

null

>>> pointer exception that i cannot figure out. I think this is introduced

by a

>>> recent commit, please help me with this. Following is the exception, >>> >>> <dump> >>> java.lang.NullPointerException >>> at >>> com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:95) >>> at >>> com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:80) >>> at >>> com.xpn.xwiki.store.XWikiCacheStore.<init>(XWikiCacheStore.java:62) >>> at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:675) >>> at com.xpn.xwiki.XWiki.<init>(XWiki.java:652) >>> at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:312) >>> at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:383) >>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:350)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:205)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351) >>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)

>>> at

>>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)

>>> at >>>

org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)

>>> at >>>

org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219)

>>> at >>>

org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

>>> at >>>

org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738)

>>> at

>>>> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)

>>> at >>>

org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)

>>> at >>>

org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113)

>>> at >>>

org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>>> at org.mortbay.jetty.Server.handle(Server.java:325)

>>> at >>>

org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)

>>> at >>>

org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:859)

>>> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) >>> at

org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)

>>> at

org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391)

>>> at >>>

org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)

>>> at >>>

org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

>>> </dump> >>> >>> In XWikiCacheStore.initCache() method, >>> >>> CacheFactory cacheFactory = context.getWiki().getCacheFactory(); >>> >>> here, cacheFactory has become null. >>> >>> I've only found this problem and currently looking into it, if anyone

can

> help me get over this quickly it would be a big help. > > Thanks. > > - Asiri > _______________________________________________ > devs mailing list > devs(a)xwiki.org > http://lists.xwiki.org/mailman/listinfo/devs > -- Thomas Mortagne

-- Thomas Mortagne

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

Thomas Mortagne

9:39 a.m.

On Thu, Jun 19, 2008 at 4:32 AM, Asiri Rathnayake <asiri.rathnayake(a)gmail.com> wrote:

...

I just committed a throw in Utils.getComponent when component manager has not been initialized, that way we will be sure it's the problem or not.

...

Thanks. - Asiri On Thu, Jun 19, 2008 at 2:16 AM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

/trunks

null

>>> pointer exception that i cannot figure out. I think this is introduced

by a

com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:350)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:205)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351) >>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)

>>> at

>>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)

>>> at >>>

org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)

>>> at >>>

org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219)

>>> at >>>

org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

>>> at >>>

org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738)

>>> at

>>>> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)

>>> at >>>

org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)

>>> at >>>

org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113)

>>> at >>>

org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>>> at org.mortbay.jetty.Server.handle(Server.java:325)

>>> at >>>

org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)

>>> at >>>

org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:859)

>>> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) >>> at

org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)

>>> at

org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391)

>>> at >>>

org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)

>>> at >>>

org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

can

>> help me get over this quickly it would be a big help. >> >> Thanks. >> >> - Asiri >> _______________________________________________ >> devs mailing list >> devs(a)xwiki.org >> http://lists.xwiki.org/mailman/listinfo/devs >> > > > > -- > Thomas Mortagne > -- Thomas Mortagne

-- Thomas Mortagne

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Thomas Mortagne

Asiri Rathnayake

9:54 a.m.

Hi Thomas, On Thu, Jun 19, 2008 at 1:09 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

...

On Thu, Jun 19, 2008 at 4:32 AM, Asiri Rathnayake <asiri.rathnayake(a)gmail.com> wrote:

I just committed a throw in Utils.getComponent when component manager has not been initialized, that way we will be sure it's the problem or not.

Thanks, I will check this asap and post a mail. - Asiri

...

Thanks. - Asiri On Thu, Jun 19, 2008 at 2:16 AM, Thomas Mortagne <

thomas.mortagne(a)xwiki.com>

wrote: > Asiri, is webdav servlet use Utils.prepareContext to create/prepare > the context ? (the Utils's ComponentManager is initialized in it) > > On Wed, Jun 18, 2008 at 10:43 PM, Thomas Mortagne > <thomas.mortagne(a)xwiki.com> wrote: > > ok, I think the problem is that when the first connection is webdav > > ComponentManager is not initialized in Utils > > > > On Wed, Jun 18, 2008 at 10:28 PM, Thomas Mortagne > > <thomas.mortagne(a)xwiki.com> wrote: > >> Also I just fixed a build bug : cache was not built when building

from

> /trunks > >> > >> On Wed, Jun 18, 2008 at 10:25 PM, Thomas Mortagne > >> <thomas.mortagne(a)xwiki.com> wrote: > >>> Hi, > >>> > >>> This error append when you try to use cache component before > >>> ComponentManager initialization, it's not really related to cache > >>> itself. > >>> > >>> How do you reproduce this ? Is it in a unit test ? I don't have any > >>> problem in virtual or non virtual mode when using xwiki in

standalone

> >>> or from Eclipse.... > >>> > >>> On Wed, Jun 18, 2008 at 9:11 PM, Asiri Rathnayake > >>> <asiri.rathnayake(a)gmail.com> wrote: > >>>> Hi All, > >>>> > >>>> I cannot test xwiki-webdav anymore because XWikiCacheStore throws a > null > >>>> pointer exception that i cannot figure out. I think this is

introduced

> by a > >>>> recent commit, please help me with this. Following is the

exception,

> >>>> > >>>> <dump> > >>>> java.lang.NullPointerException > >>>> at > >>>>

com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:95)

> >>>> at > >>>>

com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:80)

> >>>> at

>> >>>> com.xpn.xwiki.store.XWikiCacheStore.<init>(XWikiCacheStore.java:62) >> >>>> at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:675) >> >>>> at com.xpn.xwiki.XWiki.<init>(XWiki.java:652) >> >>>> at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:312) >> >>>> at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:383)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:350)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:205)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351)

> >>>> at

javax.servlet.http.HttpServlet.service(HttpServlet.java:820)

> >>>> at > >>>>

org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)

> >>>> at > >>>>

>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)

> >>>> at > >>>>

>> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219)

> >>>> at > >>>>

>> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738)

> >>>> at > >>>>

org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> >>>> at org.mortbay.jetty.Server.handle(Server.java:325)

> >>>> at > >>>>

>> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)

> >>>> at > >>>>

>> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:859)

> >>>> at

org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)

> >>>> at

>> org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)

> >>>> at

>> org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391)

> >>>> at > >>>>

>> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)

> >>>> at > >>>>

>> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

> >>>> </dump> > >>>> > >>>> In XWikiCacheStore.initCache() method, > >>>> > >>>> CacheFactory cacheFactory = context.getWiki().getCacheFactory(); > >>>> > >>>> here, cacheFactory has become null. > >>>> > >>>> I've only found this problem and currently looking into it, if

anyone

can

>>> help me get over this quickly it would be a big help. >>> >>> Thanks. >>> >>> - Asiri >>> _______________________________________________ >>> devs mailing list >>> devs(a)xwiki.org >>> http://lists.xwiki.org/mailman/listinfo/devs >>> >> >> >> >> -- >> Thomas Mortagne >> > > > > -- > Thomas Mortagne > -- Thomas Mortagne

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

Asiri Rathnayake

12:36 p.m.

Hi Thomas, On Thu, Jun 19, 2008 at 1:09 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

...

On Thu, Jun 19, 2008 at 4:32 AM, Asiri Rathnayake <asiri.rathnayake(a)gmail.com> wrote:

I just committed a throw in Utils.getComponent when component manager has not been initialized, that way we will be sure it's the problem or not.

Ok, now i'm getting the correct exception, <dump> java.lang.RuntimeException: Component manager has not been initialized before lookup for [org.xwiki.cache.CacheFactory] for hint [default] at com.xpn.xwiki.web.Utils.getComponent(Utils.java:527) at com.xpn.xwiki.XWiki.getCacheFactory(XWiki.java:5127) at com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:86) at com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:80) at com.xpn.xwiki.store.XWikiCacheStore.<init>(XWikiCacheStore.java:62) at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:675) at com.xpn.xwiki.XWiki.<init>(XWiki.java:652) at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:312) at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:383) at com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:341) at com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:193) at com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105) at com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69) at com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:353) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206) at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:325) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:859) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) </dump> Can you help me with the correct way of obtaining a handle to the main Wiki ? I mean what am i doing wrong in, <code> context = Utils.prepareContext("", request, response, engine); context.setMode(XWikiContext.MODE_GWT); context.setDatabase("xwiki"); XWiki xwiki = XWiki.getXWiki(context); </code> Anyway, i will look into this. Thanks a lot. - Asiri

...

Thanks. - Asiri On Thu, Jun 19, 2008 at 2:16 AM, Thomas Mortagne <

thomas.mortagne(a)xwiki.com>

from

standalone

introduced

> by a > >>>> recent commit, please help me with this. Following is the

exception,

> >>>> > >>>> <dump> > >>>> java.lang.NullPointerException > >>>> at > >>>>

com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:95)

> >>>> at > >>>>

com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:80)

> >>>> at

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:350)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:205)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351)

> >>>> at

javax.servlet.http.HttpServlet.service(HttpServlet.java:820)

> >>>> at > >>>>

org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)

> >>>> at > >>>>

>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)

> >>>> at > >>>>

>> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219)

> >>>> at > >>>>

>> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738)

> >>>> at > >>>>

org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> >>>> at org.mortbay.jetty.Server.handle(Server.java:325)

> >>>> at > >>>>

>> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)

> >>>> at > >>>>

>> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:859)

> >>>> at

org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)

> >>>> at

>> org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)

> >>>> at

>> org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391)

> >>>> at > >>>>

>> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)

> >>>> at > >>>>

>> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

anyone

can

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

Asiri Rathnayake

12:56 p.m.

Hi Thomas and All, On Thu, Jun 19, 2008 at 2:16 AM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

...

Asiri, is webdav servlet use Utils.prepareContext to create/prepare the context ? (the Utils's ComponentManager is initialized in it)

Previously we used a small workaround for a problem we encountered with component manager as follows, In Utils.prepareContext() method we had a problem where the component manager is null ... so we did, ComponentManager componentManager = (ComponentManager) engine_context.getAttribute(ComponentManager.class.getName()); + if(null != componentManager) { + context.put(ComponentManager.class.getName(), componentManager); + } This worked fine untill recently. But I think now we have to handle this issue. The main problem is, ComponentManager componentManager = (ComponentManager) engine_context.getAttribute(ComponentManager.class.getName()); Here, componentManager becomes null. What could be the reason for this ? Thanks a lot. - Asiri PS : Previously vincent said not to use this workaround but we used it since it worked.

...

On Wed, Jun 18, 2008 at 10:43 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

/trunks

null

>>> pointer exception that i cannot figure out. I think this is introduced

by a

com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:350)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:205)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351) >>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)

>>> at

>>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)

>>> at >>>

org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)

>>> at >>>

org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219)

>>> at >>>

org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

>>> at >>>

org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738)

>>> at

>>>> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)

>>> at >>>

org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)

>>> at >>>

org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113)

>>> at >>>

org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>>> at org.mortbay.jetty.Server.handle(Server.java:325)

>>> at >>>

org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)

>>> at >>>

org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:859)

>>> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) >>> at

org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)

>>> at

org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391)

>>> at >>>

org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)

>>> at >>>

org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

can

-- Thomas Mortagne

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

Thomas Mortagne

2:29 p.m.

On Thu, Jun 19, 2008 at 12:56 PM, Asiri Rathnayake <asiri.rathnayake(a)gmail.com> wrote:

...

Hi Thomas and All, On Thu, Jun 19, 2008 at 2:16 AM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

Asiri, is webdav servlet use Utils.prepareContext to create/prepare the context ? (the Utils's ComponentManager is initialized in it)

You also have to call static Utils.setComponentManager(componentManager) to init Utils ComponentManager. Utils.getComponent("component") does not use the context's ComponentManager anymore to be able to get component whithout context.

...

This worked fine untill recently. But I think now we have to handle this issue. The main problem is, ComponentManager componentManager = (ComponentManager) engine_context.getAttribute(ComponentManager.class.getName()); Here, componentManager becomes null. What could be the reason for this ? Thanks a lot. - Asiri PS : Previously vincent said not to use this workaround but we used it since it worked.

On Wed, Jun 18, 2008 at 10:43 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

/trunks

null

>>> pointer exception that i cannot figure out. I think this is introduced

by a

com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:350)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:205)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69)

>>> at >>>

com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351) >>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)

>>> at

>>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)

>>> at >>>

org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)

>>> at >>>

org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219)

>>> at >>>

org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

>>> at >>>

org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738)

>>> at

>>>> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)

>>> at >>>

org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)

>>> at >>>

org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113)

>>> at >>>

org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>>> at org.mortbay.jetty.Server.handle(Server.java:325)

>>> at >>>

org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)

>>> at >>>

org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:859)

>>> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) >>> at

org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)

>>> at

org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391)

>>> at >>>

org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)

>>> at >>>

org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

can

-- Thomas Mortagne

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Thomas Mortagne

Asiri Rathnayake

6:48 p.m.

On Thu, Jun 19, 2008 at 5:59 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

...

On Thu, Jun 19, 2008 at 12:56 PM, Asiri Rathnayake <asiri.rathnayake(a)gmail.com> wrote:

Hi Thomas and All, On Thu, Jun 19, 2008 at 2:16 AM, Thomas Mortagne <

thomas.mortagne(a)xwiki.com>

wrote:

Asiri, is webdav servlet use Utils.prepareContext to create/prepare the context ? (the Utils's ComponentManager is initialized in it)

componentManager);

+ }

You also have to call static Utils.setComponentManager(componentManager) to init Utils ComponentManager.

How can i initialize the componentManager (to pass into above method) ? Sorry about asking too much questions, kind of away from my build environment, no way to test till tomorrow. Thanks. - Asiri

...

Utils.getComponent("component") does not use the context's ComponentManager anymore to be able to get component whithout context.

since

it worked. > > On Wed, Jun 18, 2008 at 10:43 PM, Thomas Mortagne > <thomas.mortagne(a)xwiki.com> wrote: > > ok, I think the problem is that when the first connection is webdav > > ComponentManager is not initialized in Utils > > > > On Wed, Jun 18, 2008 at 10:28 PM, Thomas Mortagne > > <thomas.mortagne(a)xwiki.com> wrote: > >> Also I just fixed a build bug : cache was not built when building

from

standalone

introduced

> by a > >>>> recent commit, please help me with this. Following is the

exception,

> >>>> > >>>> <dump> > >>>> java.lang.NullPointerException > >>>> at > >>>>

com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:95)

> >>>> at > >>>>

com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:80)

> >>>> at

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:350)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:205)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351)

> >>>> at

javax.servlet.http.HttpServlet.service(HttpServlet.java:820)

> >>>> at > >>>>

org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)

> >>>> at > >>>>

>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)

> >>>> at > >>>>

>> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219)

> >>>> at > >>>>

>> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738)

> >>>> at > >>>>

org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> >>>> at org.mortbay.jetty.Server.handle(Server.java:325)

> >>>> at > >>>>

>> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)

> >>>> at > >>>>

>> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:859)

> >>>> at

org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)

> >>>> at

>> org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)

> >>>> at

>> org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391)

> >>>> at > >>>>

>> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)

> >>>> at > >>>>

>> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

anyone

can

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

Thomas Mortagne

20 Jun 20 Jun

10:45 a.m.

On Thu, Jun 19, 2008 at 6:48 PM, Asiri Rathnayake <asiri.rathnayake(a)gmail.com> wrote:

...

On Thu, Jun 19, 2008 at 5:59 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

On Thu, Jun 19, 2008 at 12:56 PM, Asiri Rathnayake <asiri.rathnayake(a)gmail.com> wrote:

Hi Thomas and All, On Thu, Jun 19, 2008 at 2:16 AM, Thomas Mortagne <

thomas.mortagne(a)xwiki.com>

wrote:

Asiri, is webdav servlet use Utils.prepareContext to create/prepare the context ? (the Utils's ComponentManager is initialized in it)

componentManager);

+ }

You also have to call static Utils.setComponentManager(componentManager) to init Utils ComponentManager.

How can i initialize the componentManager (to pass into above method) ? Sorry about asking too much questions, kind of away from my build environment, no way to test till tomorrow. Thanks. - Asiri > Utils.getComponent("component") does not use the > context's ComponentManager anymore to be able to get component > whithout context. > > > > > This worked fine untill recently. But I think now we have to handle this > > issue. The main problem is, > > > > ComponentManager componentManager = > > (ComponentManager) > > engine_context.getAttribute(ComponentManager.class.getName()); > > > > Here, componentManager becomes null. What could be the reason for this ?

I look in sandbox this time and I think the problem is that ComponentManager is not created and inserted in engine_context so when prepareContext ask for it it get a null value and give it to Utils. You should look in shared-test project (/trunks/xwiki-platform-tools/xwiki-shared-tests/src/main/java/com/xpn/xwiki/test/AbstractXWikiComponentTestCase#getComponentManager()) to see how to create one. Then insert it in the "engine" (XWikiServletContext here) argument before calling prepareContext. I can do it directly in xwiki-webdav and commit in sandbox if you want.

...

Thanks a lot. - Asiri PS : Previously vincent said not to use this workaround but we used it

since

from

standalone

introduced

> by a > >>>> recent commit, please help me with this. Following is the

exception,

> >>>> > >>>> <dump> > >>>> java.lang.NullPointerException > >>>> at > >>>>

com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:95)

> >>>> at > >>>>

com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:80)

> >>>> at

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:350)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:205)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69)

> >>>> at > >>>>

>> com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351)

> >>>> at

javax.servlet.http.HttpServlet.service(HttpServlet.java:820)

> >>>> at > >>>>

org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)

> >>>> at > >>>>

>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)

> >>>> at > >>>>

>> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219)

> >>>> at > >>>>

>> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738)

> >>>> at > >>>>

org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113)

> >>>> at > >>>>

>> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> >>>> at org.mortbay.jetty.Server.handle(Server.java:325)

> >>>> at > >>>>

>> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)

> >>>> at > >>>>

>> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:859)

> >>>> at

org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)

> >>>> at

>> org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)

> >>>> at

>> org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391)

> >>>> at > >>>>

>> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)

> >>>> at > >>>>

>> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

anyone

can >>>> help me get over this quickly it would be a big help. >>>> >>>> Thanks. >>>> >>>> - Asiri >>>> _______________________________________________ >>>> devs mailing list >>>> devs(a)xwiki.org >>>> http://lists.xwiki.org/mailman/listinfo/devs >>>> >>> >>> >>> >>> -- >>> Thomas Mortagne >>> >> >> >> >> -- >> Thomas Mortagne >> > > > > -- > Thomas Mortagne > -- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Thomas Mortagne

Asiri Rathnayake

4:09 p.m.

Hi Thomas, On Fri, Jun 20, 2008 at 2:15 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

...

On Thu, Jun 19, 2008 at 6:48 PM, Asiri Rathnayake <asiri.rathnayake(a)gmail.com> wrote:

On Thu, Jun 19, 2008 at 5:59 PM, Thomas Mortagne <

thomas.mortagne(a)xwiki.com>

wrote: > On Thu, Jun 19, 2008 at 12:56 PM, Asiri Rathnayake > <asiri.rathnayake(a)gmail.com> wrote: > > Hi Thomas and All, > > > > On Thu, Jun 19, 2008 at 2:16 AM, Thomas Mortagne < > thomas.mortagne(a)xwiki.com> > > wrote: > > > >> Asiri, is webdav servlet use Utils.prepareContext to create/prepare > >> the context ? (the Utils's ComponentManager is initialized in it) > >> > > > > Previously we used a small workaround for a problem we encountered

with

component manager as follows, In Utils.prepareContext() method we had a problem where the component manager is null ... so we did, ComponentManager componentManager = (ComponentManager) engine_context.getAttribute(ComponentManager.class.getName()); + if(null != componentManager) { + context.put(ComponentManager.class.getName(),

componentManager);

+ }

You also have to call static Utils.setComponentManager(componentManager) to init Utils ComponentManager.

this

> > issue. The main problem is, > > > > ComponentManager componentManager = > > (ComponentManager) > > engine_context.getAttribute(ComponentManager.class.getName()); > > > > Here, componentManager becomes null. What could be the reason for this

? I look in sandbox this time and I think the problem is that ComponentManager is not created and inserted in engine_context so when prepareContext ask for it it get a null value and give it to Utils. You should look in shared-test project (/trunks/xwiki-platform-tools/xwiki-shared-tests/src/main/java/com/xpn/xwiki/test/AbstractXWikiComponentTestCase#getComponentManager()) to see how to create one. Then insert it in the "engine" (XWikiServletContext here) argument before calling prepareContext.

Thanks, I will look into this.

...

I can do it directly in xwiki-webdav and commit in sandbox if you want.

That's great! Then i can start looking into webdav work straight away. Anyway, I will have go through your code and understand it because learning about xwiki-core is part of gsoc. Also, if we can fix this, i think we can get rid of the additional patch (to core) required to test xwiki-webdav. Thanks a lot. - Asiri

...

> > > > Thanks a lot. > > > > - Asiri > > > > PS : Previously vincent said not to use this workaround but we used it > since > > it worked. > > > > > >> > >> On Wed, Jun 18, 2008 at 10:43 PM, Thomas Mortagne > >> <thomas.mortagne(a)xwiki.com> wrote: > >> > ok, I think the problem is that when the first connection is webdav > >> > ComponentManager is not initialized in Utils > >> > > >> > On Wed, Jun 18, 2008 at 10:28 PM, Thomas Mortagne > >> > <thomas.mortagne(a)xwiki.com> wrote: > >> >> Also I just fixed a build bug : cache was not built when building > from > >> /trunks > >> >> > >> >> On Wed, Jun 18, 2008 at 10:25 PM, Thomas Mortagne > >> >> <thomas.mortagne(a)xwiki.com> wrote: > >> >>> Hi, > >> >>> > >> >>> This error append when you try to use cache component before > >> >>> ComponentManager initialization, it's not really related to cache > >> >>> itself. > >> >>> > >> >>> How do you reproduce this ? Is it in a unit test ? I don't have

any

> >> >>> problem in virtual or non virtual mode when using xwiki in > standalone > >> >>> or from Eclipse.... > >> >>> > >> >>> On Wed, Jun 18, 2008 at 9:11 PM, Asiri Rathnayake > >> >>> <asiri.rathnayake(a)gmail.com> wrote: > >> >>>> Hi All, > >> >>>> > >> >>>> I cannot test xwiki-webdav anymore because XWikiCacheStore

throws a

> >> null > >> >>>> pointer exception that i cannot figure out. I think this is > introduced > >> by a > >> >>>> recent commit, please help me with this. Following is the > exception, > >> >>>> > >> >>>> <dump> > >> >>>> java.lang.NullPointerException > >> >>>> at > >> >>>> > com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:95) > >> >>>> at > >> >>>> > com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:80) > >> >>>> at > >> >>>>

com.xpn.xwiki.store.XWikiCacheStore.<init>(XWikiCacheStore.java:62)

> >> >>>> at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:675) > >> >>>> at com.xpn.xwiki.XWiki.<init>(XWiki.java:652) > >> >>>> at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:312) > >> >>>> at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:383) > >> >>>> at > >> >>>> > >> >

com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:350)

> >> >>>> at > >> >>>> > >> >

com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:205)

> >> >>>> at > >> >>>> > >> >

com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105)

> >> >>>> at > >> >>>> > >> >

com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69)

> >> >>>> at > >> >>>> > >> >

com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351)

> >> >>>> at > javax.servlet.http.HttpServlet.service(HttpServlet.java:820) > >> >>>> at > >> >>>> > org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) > >> >>>> at > >> >>>> > >>

org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)

> >> >>>> at > >> >>>> > >> >

org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219)

> >> >>>> at > >> >>>> > >>

org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

> >> >>>> at > >> >>>> > >>

org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738) >> >> >>>> at >> >> >>>> >> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)

> >> >>>> at > >> >>>> > >> >

org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)

> >> >>>> at > >> >>>> > >> >

org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113)

> >> >>>> at > >> >>>> > >>

org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> >> >>>> at org.mortbay.jetty.Server.handle(Server.java:325)

> >> >>>> at > >> >>>> > >>

org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)

> >> >>>> at > >> >>>> > >> >

org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:859) >> >> >>>> at >> org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) >> >> >>>> at >> >> org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) >> >> >>>> at >> >> org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391)

> >> >>>> at > >> >>>> > >> >

org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)

> >> >>>> at > >> >>>> > >> >

org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

anyone

> can > >>>> help me get over this quickly it would be a big help. > >>>> > >>>> Thanks. > >>>> > >>>> - Asiri > >>>> _______________________________________________ > >>>> devs mailing list > >>>> devs(a)xwiki.org > >>>> http://lists.xwiki.org/mailman/listinfo/devs > >>>> > >>> > >>> > >>> > >>> -- > >>> Thomas Mortagne > >>> > >> > >> > >> > >> -- > >> Thomas Mortagne > >> > > > > > > > > -- > > Thomas Mortagne > > > > > > -- > Thomas Mortagne > _______________________________________________ > devs mailing list > devs(a)xwiki.org > http://lists.xwiki.org/mailman/listinfo/devs > _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

Asiri Rathnayake

21 Jun 21 Jun

1:32 p.m.

Hi Thomas & All, On Fri, Jun 20, 2008 at 2:15 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com> wrote:

...

On Thu, Jun 19, 2008 at 6:48 PM, Asiri Rathnayake <asiri.rathnayake(a)gmail.com> wrote:

On Thu, Jun 19, 2008 at 5:59 PM, Thomas Mortagne <

thomas.mortagne(a)xwiki.com>

with

componentManager);

+ }

You also have to call static Utils.setComponentManager(componentManager) to init Utils ComponentManager.

this

I tried to follow this scheme but now I'm getting a different problem, <dump> java.lang.ClassCastException: org.apache.maven.plugin.MavenPluginDiscoverer at org.codehaus.plexus.component.discovery.DefaultComponentDiscovererManager.initialize(DefaultComponentDiscovererManager.java:94) at org.codehaus.plexus.container.initialization.InitializeComponentDiscovererManagerPhase.initializeCoreComponent(InitializeComponentDiscovererManagerPhase.java:36) at org.codehaus.plexus.container.initialization.AbstractCoreComponentInitializationPhase.execute(AbstractCoreComponentInitializationPhase.java:37) at org.codehaus.plexus.DefaultPlexusContainer.initializePhases(DefaultPlexusContainer.java:914) at org.codehaus.plexus.DefaultPlexusContainer.initialize(DefaultPlexusContainer.java:858) at org.codehaus.plexus.DefaultPlexusContainer.construct(DefaultPlexusContainer.java:834) at org.codehaus.plexus.DefaultPlexusContainer.<init>(DefaultPlexusContainer.java:204) at com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getComponentManager(XWikiDavResourceImpl.java:1441) at com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:348) at com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:213) at com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105) at com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69) at com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206) at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:325) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:873) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:648) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) </dump> Then after little browsing i came across http://jira.codehaus.org/browse/PLX-331 and then tried, 1. Build plexus-servlet locally. 2. Build xwiki-plexus locally (with the new version of plexus-servlet) 3. Build & tried `mvn jetty:run` on xwiki-webdav But still it gives the same error. I am so stuck here and need your help to fix this. Simply, i need to know how to properly initialize the componentManager. The procedure used in (/trunks/xwiki-platform-tools/xwiki-shared-tests/src/main/java/com/xpn/xwiki/test/AbstractXWikiComponentTestCase#getComponentManager()) doesn't seem to work for me. Please help. - Asiri

...

any

throws a

com.xpn.xwiki.store.XWikiCacheStore.<init>(XWikiCacheStore.java:62)

com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:350)

> >> >>>> at > >> >>>> > >> >

com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:205)

> >> >>>> at > >> >>>> > >> >

com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105)

> >> >>>> at > >> >>>> > >> >

com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69)

> >> >>>> at > >> >>>> > >> >

com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351)

> >> >>>> at > javax.servlet.http.HttpServlet.service(HttpServlet.java:820) > >> >>>> at > >> >>>> > org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) > >> >>>> at > >> >>>> > >>

org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)

> >> >>>> at > >> >>>> > >> >

org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219)

> >> >>>> at > >> >>>> > >>

org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

> >> >>>> at > >> >>>> > >>

org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738) >> >> >>>> at >> >> >>>> >> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)

> >> >>>> at > >> >>>> > >> >

org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)

> >> >>>> at > >> >>>> > >> >

org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113)

> >> >>>> at > >> >>>> > >>

org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> >> >>>> at org.mortbay.jetty.Server.handle(Server.java:325)

> >> >>>> at > >> >>>> > >>

org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)

> >> >>>> at > >> >>>> > >> >

org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)

> >> >>>> at > >> >>>> > >> >

org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

anyone

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Thomas Mortagne _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

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15 comments

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participants (3)

Asiri Rathnayake
Thomas Mortagne
Vincent Massol