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Date: Mon, 20 Jun 2011 13:04:25 -0400
Message-ID: <BANLkTinPaKNy2_O86r_MFJYk9eT=qHQfmg@mail.gmail.com>
Subject: Re: Adding a webapp via the API to a running instance
From: Benson Margulies <bimargulies@gmail.com>
To: Tomcat Users List <users@tomcat.apache.org>
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Hi, I set up a testcase at
https://github.com/bimargulies/Tomcat-Solr-Test-Case. Note that this
is NOT a 3.0 webapp. I read the code, and the failing path is in the
if statement for 'pre-3.0'. Please have a look at the single Java
class in there and tell me what is wrong, since it seems quite
straightforward to me.

On Mon, Jun 20, 2011 at 12:56 PM, Rainer Jung <rainer.jung@kippdata.de> wro=
te:
> Hi Benson,
>
> On 20.06.2011 17:51, Benson Margulies wrote:
>> Reading org.apache.catalina.startup.Tomcat.addWebapp(Host, String,
>> String, String), I don't understand the following:
>>
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0 // prevent it from looking ( if it finds one=
 - it'll have dup error )
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0 ctxCfg.setDefaultWebXml("org/apache/catalin/=
startup/NO_DEFAULT_XML");
>>
>> Why is this being used to prevent the code from seeing a web.xml in
>> the basedir/conf?
>
> I'd say it is not.
>
> Have a look at ourr test suite. It uses the jsp servlet without
> programmatically configuring. I'm pretty sure it comes from the global
> web.xml. The test suite also logs
>
> ... org.apache.catalina.startup.ContextConfig webConfig
> ... INFO: No global web.xml found
>
> but that doesn't keep it from executing JSPs.
>
> For instance TestAbstractHttp11Processor deploys test/webapp-3.0 and
> calls /echo-params.jsp. The basics are in TomcatBaseTest.
>
> So I'd say there's something wrong in your setup.
> HTH.
>
> Rainer
>
>> On Mon, Jun 20, 2011 at 11:31 AM, Benson Margulies
>> <bimargulies@gmail.com> wrote:
>>> I'm using import org.apache.catalina.startup.Tomcat to embed tomcat.
>>>
>>> After it is running, I'm trying to add another webapp with .addWebapp.
>>>
>>> The addWebapp call logs:
>>>
>>> 2011-06-20 11:23:23,385 ["http-bio-9167"-exec-2] INFO
>>> org.apache.catalina.util.LifecycleBase - The start() method was called
>>> on component [Realm[Simple]] after start() had already been called.
>>> The second call will be ignored.
>>> 2011-06-20 11:23:23,387 ["http-bio-9167"-exec-2] INFO
>>> org.apache.catalina.startup.ContextConfig - No global web.xml found
>>>
>>> This second message is odd, since there is a global web.xml sitting in
>>> the conf subdirectory of the pathname I passed to Tomcat.setBaseDir.
>>>
>>> However, this is followed in quick succession by an NPE. In
>>> ContextConfig.java, jspServlet is null. Does it make sense that the
>>> problem is the failure to find the global web.xml, since it would
>>> define the jsp servlet? And, if so, why does this work for my first
>>> webpp (defined before 'start') and not for my second?
>>>
>>> java.lang.NullPointerException
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.startup.ContextConfig=
.convertJsp(ContextConfig.java:1360)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.startup.ContextConfig=
.convertJsps(ContextConfig.java:1339)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.startup.ContextConfig=
.webConfig(ContextConfig.java:1330)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.startup.ContextConfig=
.configureStart(ContextConfig.java:881)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.startup.ContextConfig=
.lifecycleEvent(ContextConfig.java:316)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.util.LifecycleSupport=
.fireLifecycleEvent(LifecycleSupport.java:119)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.util.LifecycleBase.fi=
reLifecycleEvent(LifecycleBase.java:89)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.core.StandardContext.=
startInternal(StandardContext.java:5103)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.util.LifecycleBase.st=
art(LifecycleBase.java:145)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.core.ContainerBase.ad=
dChildInternal(ContainerBase.java:812)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.core.ContainerBase.ad=
dChild(ContainerBase.java:787)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.core.StandardHost.add=
Child(StandardHost.java:607)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.startup.Tomcat.addWeb=
app(Tomcat.java:509)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.startup.Tomcat.addWeb=
app(Tomcat.java:483)
>>> =C2=A0 =C2=A0 =C2=A0 =C2=A0at org.apache.catalina.startup.Tomcat.addWeb=
app(Tomcat.java:171)
>
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