Re: NPE in afterRender method in Tomcat
I'm vwr sorry, I'm stupid.The constant Constants.REQUIRED_LOGIN_RQATR
was null.
But I'm surprised the Tomcat does not provide any reasonable message.
Dne 7.6.2010 22:13, Radek Terber napsal(a):
Hi
I have such problem: I have quite simple T5 application - (T5 +
hibernate), currently compiled under T 5.1.0.5. When I run it under
Jetty (ver. 8.0.0), it runs fine.
But when I try it to start under Tomcat, I get NullPointerException
that (probably) indicates the underline request is null.
I tested it under Tomcat 6.0.18, 6.0.20 and 6.0.26. Tomcats was pure
installations - with no aditional libraries.
It runs under Java 6.18 on Win7, the same problem in on Linux and Java
6.16.
I could post application's war somewhere, but it is quite big (cca 28M
including libraries), ant it requires our application server running
anywhere in LAN to run.
Here it the eception:
---
[ERROR] TapestryModule.RequestExceptionHandler Processing of request
failed with uncaught exception: Render queue error in AfterRender[Index
:layout.loginform]:
org.apache.tapestry5.ioc.internal.util.TapestryException
org.apache.tapestry5.internal.services.RenderQueueException: Render
queue error in AfterRender[Index:layout.loginform]: org.apache.tapestry5
.ioc.internal.util.TapestryException [at
classpath:cz/gapo/weby/jmenovky/components/layout/Layout.tml, line 25]
at
org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:86)
at
org.apache.tapestry5.internal.services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:121)
... (I deleted it) ...
at java.lang.Thread.run(Thread.java:619)
Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException
[at classpath:cz/gapo/weby/jmenovky/components/layout/Layout.tml, line
25]
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:948)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.access$400(ComponentPageElementImpl.java:49)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.callback(ComponentPageElementImpl.java:159)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AfterRenderPhase.render(ComponentPageElementImpl.java:374)
at
org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:74)
... 68 more
Caused by: java.lang.NullPointerException
at
org.apache.catalina.connector.Request.getAttribute(Request.java:877)
at
org.apache.catalina.connector.RequestFacade.getAttribute(RequestFacade.java:263)
at
cz.gapo.webapps.common.t5.components.LoginForm.afterRender(LoginForm.java:127)
at
cz.gapo.webapps.common.t5.components.LoginForm.afterRender(LoginForm.java)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AfterRenderPhase.invokeComponent(ComponentPageElementImpl.java:369)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.run(ComponentPageElementImpl.java:164)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:933)
... 72 more
The code fragment cause it:
---
@Inject
private RenderSupport rsup;
@Inject
private Request request;
@AfterRender
public void afterRender(MarkupWriter wr) {
boolean requireLogin =
request.getAttribute(Constants.REQUIRED_LOGIN_RQATR) != null;
// here the NPE is thrown, but the request is not null
if (requireLogin) {
rsup.addScript($j(function() {);
rsup.addScript($j(\#loginFormDialog\).dialog(\option\, \modal\,
false););
rsup.addScript($j(\#loginFormDialog\).dialog(\open\););
rsup.addScript(}););
}
}
---
Thanks for any ideas.
Radek
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NPE in afterRender method in Tomcat
Hi
I have such problem: I have quite simple T5 application - (T5 +
hibernate), currently compiled under T 5.1.0.5. When I run it under
Jetty (ver. 8.0.0), it runs fine.
But when I try it to start under Tomcat, I get NullPointerException that
(probably) indicates the underline request is null.
I tested it under Tomcat 6.0.18, 6.0.20 and 6.0.26. Tomcats was pure
installations - with no aditional libraries.
It runs under Java 6.18 on Win7, the same problem in on Linux and Java 6.16.
I could post application's war somewhere, but it is quite big (cca 28M
including libraries), ant it requires our application server running
anywhere in LAN to run.
Here it the eception:
---
[ERROR] TapestryModule.RequestExceptionHandler Processing of request
failed with uncaught exception: Render queue error in AfterRender[Index
:layout.loginform]: org.apache.tapestry5.ioc.internal.util.TapestryException
org.apache.tapestry5.internal.services.RenderQueueException: Render
queue error in AfterRender[Index:layout.loginform]: org.apache.tapestry5
.ioc.internal.util.TapestryException [at
classpath:cz/gapo/weby/jmenovky/components/layout/Layout.tml, line 25]
at
org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:86)
at
org.apache.tapestry5.internal.services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:121)
... (I deleted it) ...
at java.lang.Thread.run(Thread.java:619)
Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException [at
classpath:cz/gapo/weby/jmenovky/components/layout/Layout.tml, line 25]
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:948)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.access$400(ComponentPageElementImpl.java:49)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.callback(ComponentPageElementImpl.java:159)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AfterRenderPhase.render(ComponentPageElementImpl.java:374)
at
org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:74)
... 68 more
Caused by: java.lang.NullPointerException
at
org.apache.catalina.connector.Request.getAttribute(Request.java:877)
at
org.apache.catalina.connector.RequestFacade.getAttribute(RequestFacade.java:263)
at
cz.gapo.webapps.common.t5.components.LoginForm.afterRender(LoginForm.java:127)
at
cz.gapo.webapps.common.t5.components.LoginForm.afterRender(LoginForm.java)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AfterRenderPhase.invokeComponent(ComponentPageElementImpl.java:369)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.run(ComponentPageElementImpl.java:164)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:933)
... 72 more
The code fragment cause it:
---
@Inject
private RenderSupport rsup;
@Inject
private Request request;
@AfterRender
public void afterRender(MarkupWriter wr) {
boolean requireLogin =
request.getAttribute(Constants.REQUIRED_LOGIN_RQATR) != null;//
here the NPE is thrown, but the request is not null
if (requireLogin) {
rsup.addScript($j(function() {);
rsup.addScript($j(\#loginFormDialog\).dialog(\option\,
\modal\, false););
rsup.addScript($j(\#loginFormDialog\).dialog(\open\););
rsup.addScript(}););
}
}
---
Thanks for any ideas.
Radek
-
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
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Re: NPE in afterRender method in Tomcat
Caused by: java.lang.NullPointerException
at
org.apache.catalina.connector.Request.getAttribute(Request.java:877)
at
org.apache.catalina.connector.RequestFacade.getAttribute(RequestFacade.java:263)
That's really showing that it's gone beyond the Tapestry code and back into
the Tomcat (catalina) code. Are you doing something tricky with threads,
like trying to do part of the render is a background thread?
You'll probably need to single-step down ingo the catalina code to see
what's exactly going on. Not enough information here to diagnose.
On Mon, Jun 7, 2010 at 1:13 PM, Radek Terber lst@post.cz wrote:
Hi
I have such problem: I have quite simple T5 application - (T5 + hibernate),
currently compiled under T 5.1.0.5. When I run it under Jetty (ver. 8.0.0),
it runs fine.
But when I try it to start under Tomcat, I get NullPointerException that
(probably) indicates the underline request is null.
I tested it under Tomcat 6.0.18, 6.0.20 and 6.0.26. Tomcats was pure
installations - with no aditional libraries.
It runs under Java 6.18 on Win7, the same problem in on Linux and Java
6.16.
I could post application's war somewhere, but it is quite big (cca 28M
including libraries), ant it requires our application server running
anywhere in LAN to run.
Here it the eception:
---
[ERROR] TapestryModule.RequestExceptionHandler Processing of request failed
with uncaught exception: Render queue error in AfterRender[Index
:layout.loginform]:
org.apache.tapestry5.ioc.internal.util.TapestryException
org.apache.tapestry5.internal.services.RenderQueueException: Render queue
error in AfterRender[Index:layout.loginform]: org.apache.tapestry5
.ioc.internal.util.TapestryException [at
classpath:cz/gapo/weby/jmenovky/components/layout/Layout.tml, line 25]
at
org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:86)
at
org.apache.tapestry5.internal.services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:121)
... (I deleted it) ...
at java.lang.Thread.run(Thread.java:619)
Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException [at
classpath:cz/gapo/weby/jmenovky/components/layout/Layout.tml, line 25]
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:948)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.access$400(ComponentPageElementImpl.java:49)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.callback(ComponentPageElementImpl.java:159)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AfterRenderPhase.render(ComponentPageElementImpl.java:374)
at
org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:74)
... 68 more
Caused by: java.lang.NullPointerException
at
org.apache.catalina.connector.Request.getAttribute(Request.java:877)
at
org.apache.catalina.connector.RequestFacade.getAttribute(RequestFacade.java:263)
at
cz.gapo.webapps.common.t5.components.LoginForm.afterRender(LoginForm.java:127)
at
cz.gapo.webapps.common.t5.components.LoginForm.afterRender(LoginForm.java)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AfterRenderPhase.invokeComponent(ComponentPageElementImpl.java:369)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.run(ComponentPageElementImpl.java:164)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:933)
... 72 more
The code fragment cause it:
---
@Inject
private RenderSupport rsup;
@Inject
private Request request;
@AfterRender
public void afterRender(MarkupWriter wr) {
boolean requireLogin =
request.getAttribute(Constants.REQUIRED_LOGIN_RQATR) != null;// here
the NPE is thrown, but the request is not null
if (requireLogin) {
rsup.addScript($j(function() {);
rsup.addScript($j(\#loginFormDialog\).dialog(\option\,
\modal\, false););
rsup.addScript($j(\#loginFormDialog\).dialog(\open\););
rsup.addScript(}););
}
}
---
Thanks for any ideas.
Radek
-
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--
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Creator of Apache Tapestry
The source for Tapestry training, mentoring and support. Contact me to learn
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Re: NPE in afterRender method in Tomcat
No, the app is single thread, quite clear, no experiments...
Here is the self contained variant of war (with no dependencies to
oour app server):
http://www.gapo.cz/downloads/genusinum.war
I guess to some library which the application is depend on (in
combination with Tomcat libraries ??), but I have no tools and
experiences to deterrmine it.
Dne 7.6.2010 22:58, Howard Lewis Ship napsal(a):
Caused by: java.lang.NullPointerException
at
org.apache.catalina.connector.Request.getAttribute(Request.java:877)
at
org.apache.catalina.connector.RequestFacade.getAttribute(RequestFacade.java:263)
That's really showing that it's gone beyond the Tapestry code and back into
the Tomcat (catalina) code. Are you doing something tricky with threads,
like trying to do part of the render is a background thread?
You'll probably need to single-step down ingo the catalina code to see
what's exactly going on. Not enough information here to diagnose.
On Mon, Jun 7, 2010 at 1:13 PM, Radek Terberlst@post.cz wrote:
Hi
I have such problem: I have quite simple T5 application - (T5 + hibernate),
currently compiled under T 5.1.0.5. When I run it under Jetty (ver. 8.0.0),
it runs fine.
But when I try it to start under Tomcat, I get NullPointerException that
(probably) indicates the underline request is null.
I tested it under Tomcat 6.0.18, 6.0.20 and 6.0.26. Tomcats was pure
installations - with no aditional libraries.
It runs under Java 6.18 on Win7, the same problem in on Linux and Java
6.16.
I could post application's war somewhere, but it is quite big (cca 28M
including libraries), ant it requires our application server running
anywhere in LAN to run.
Here it the eception:
---
[ERROR] TapestryModule.RequestExceptionHandler Processing of request failed
with uncaught exception: Render queue error in AfterRender[Index
:layout.loginform]:
org.apache.tapestry5.ioc.internal.util.TapestryException
org.apache.tapestry5.internal.services.RenderQueueException: Render queue
error in AfterRender[Index:layout.loginform]: org.apache.tapestry5
.ioc.internal.util.TapestryException [at
classpath:cz/gapo/weby/jmenovky/components/layout/Layout.tml, line 25]
at
org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:86)
at
org.apache.tapestry5.internal.services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:121)
... (I deleted it) ...
at java.lang.Thread.run(Thread.java:619)
Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException [at
classpath:cz/gapo/weby/jmenovky/components/layout/Layout.tml, line 25]
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:948)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.access$400(ComponentPageElementImpl.java:49)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.callback(ComponentPageElementImpl.java:159)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AfterRenderPhase.render(ComponentPageElementImpl.java:374)
at
org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:74)
... 68 more
Caused by: java.lang.NullPointerException
at
org.apache.catalina.connector.Request.getAttribute(Request.java:877)
at
org.apache.catalina.connector.RequestFacade.getAttribute(RequestFacade.java:263)
at
cz.gapo.webapps.common.t5.components.LoginForm.afterRender(LoginForm.java:127)
at
cz.gapo.webapps.common.t5.components.LoginForm.afterRender(LoginForm.java)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AfterRenderPhase.invokeComponent(ComponentPageElementImpl.java:369)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.run(ComponentPageElementImpl.java:164)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:933)
... 72 more
The code fragment cause it:
---
@Inject
private RenderSupport rsup;
@Inject
private Request request;
@AfterRender
public void afterRender(MarkupWriter wr) {
boolean requireLogin =
request.getAttribute(Constants.REQUIRED_LOGIN_RQATR) != null;// here
the NPE is thrown, but the request is not null
if (requireLogin) {
rsup.addScript($j(function() {);
rsup.addScript($j(\#loginFormDialog\).dialog(\option\,
\modal\, false););
rsup.addScript($j(\#loginFormDialog\).dialog(\open\););
rsup.addScript(}););
}
}
---
Thanks for any ideas.
Radek
-
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail:
