I had to hack in some code so that it would actually log the error. I
could probably find it and offer it back, but I don't know how often
this would come up.
I ran into Xerces problems. In this particular Tomcat instance I have a
couple of CAS 3.x instances that need to be replaced, and a bunch of
Tapestry 5.3 applications using CAS clients. All of them were including
Xerces due to the CAS dependencies. This particular application was
using public federated authentication as most people logging into it
won't be at my institution. Thus it wasn't including a Xerces
dependency. If one of those other applications loaded first, the Xerces
lib would assert to the JVM that it was the SAX implementation to use.
This application would come along, as the JVM for the implementation to
use, and be told to use Xerces. It then blows up with a ClassDefNotFound
error when Xerces isn't on the classpath. If the 5.4 / non-CAS
application loaded first, it could find a SAX parser on the classpath.
So my current solution is to just include Xerces in the new 5.4
application until such time as I can better deal with it.
On 05/25/2018 01:03 PM, Carlos Montero Canabal wrote:
I have this problem in some situations too.
I have a tomcat instance with multiple Tapestry5 apps, some with 5.3 versions
and anothers with 5.4 versions. To work fine, when I restart the tomcat, I have
to start / load first the 5.3 apps, and then the 5.4, it’s the only way to run
everyone in the same tomcat. I didn´t find any solution, I think I would have
to install 5.3 apps on a dedicated tomcat and 5.4 into another one.
I hope my experience helps you.
Regards
Carlos Montero
El 24/5/2018, a las 1:07, Richard Frovarp <rfrov...@apache.org> escribió:
I'm having some very odd problems with Tapestry 5.4.3. Most of my stuff is on
5.3, so I haven't been able to dig very deep on this, and I'm not quite sure
what I'm missing. I'm running Tomcat 8.5.x. Now, it appears that might be from
classpath:org/apache/tapestry5/corelib/pages/ExceptionReport.tml. But something
else must be generating the error. I've been able to make it go away with a
restart of Tomcat, but not of just the app itself. I'm fairly confused. I think
that the exception being reported isn't the actual root cause, but rather the
exception that is reported due to an error with reporting the actual exception.
2018-05-23 17:57:10,697 [ERROR] ioc.Registry java.lang.NullPointerException
2018-05-23 17:57:10,698 [ERROR] ioc.Registry Operations trace:
2018-05-23 17:57:10,698 [ERROR] ioc.Registry [ 1] Handling page render request
for page Index
2018-05-23 17:57:10,698 [ERROR] ioc.Registry [ 2] Constructing instance of page
class edu.ndsu.eci.international_capstone_exchange.pages.Index
2018-05-23 17:57:10,698 [ERROR] ioc.Registry [ 3] Creating ComponentAssembler
for edu.ndsu.eci.international_capstone_exchange.pages.Index
2018-05-23 17:57:10,698 [ERROR] ioc.Registry [ 4] Parsing component template
classpath:edu/ndsu/eci/international_capstone_exchange/pages/Index.tml
2018-05-23 17:57:10,712 [ERROR] TapestryModule.RequestExceptionHandler
Processing of request failed with uncaught exception:
org.apache.tapestry5.ioc.internal.OperationException
org.apache.tapestry5.ioc.internal.OperationException
at
org.apache.tapestry5.ioc.internal.OperationTrackerImpl.logAndRethrow(OperationTrackerImpl.java:186)
at
org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:90)
at
org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:72)
at
org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1260)
at
org.apache.tapestry5.internal.services.TemplateParserImpl.parseTemplate(TemplateParserImpl.java:57)
at $TemplateParser_95423bef7.parseTemplate(Unknown Source)
at
org.apache.tapestry5.internal.services.ComponentTemplateSourceImpl.parseTemplate(ComponentTemplateSourceImpl.java:190)
at
org.apache.tapestry5.internal.services.ComponentTemplateSourceImpl.getTemplate(ComponentTemplateSourceImpl.java:162)
at $ComponentTemplateSource_95423bef6.getTemplate(Unknown Source)
at
org.apache.tapestry5.internal.pageload.PageLoaderImpl$4.invoke(PageLoaderImpl.java:258)
at
org.apache.tapestry5.internal.pageload.PageLoaderImpl$4.invoke(PageLoaderImpl.java:251)
at
org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:82)
at
org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:72)
at
org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1260)
snip
Caused by: java.lang.NullPointerException
at
org.apache.tapestry5.internal.services.XMLTokenStream.getLocation(XMLTokenStream.java:487)
at
org.apache.tapestry5.internal.services.SaxTemplateParser.parse(SaxTemplateParser.java:181)
at
org.apache.tapestry5.internal.services.TemplateParserImpl$1.invoke(TemplateParserImpl.java:61)
at
org.apache.tapestry5.internal.services.TemplateParserImpl$1.invoke(TemplateParserImpl.java:58)
at
org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:82)
... 102 more
2018-05-23 17:57:10,804 [ERROR] ioc.Registry java.lang.NullPointerException
2018-05-23 17:57:10,804 [ERROR] ioc.Registry Operations trace:
2018-05-23 17:57:10,804 [ERROR] ioc.Registry [ 1] Constructing instance of page
class org.apache.tapestry5.corelib.pages.ExceptionReport
2018-05-23 17:57:10,804 [ERROR] ioc.Registry [ 2] Creating ComponentAssembler
for org.apache.tapestry5.corelib.pages.ExceptionReport
2018-05-23 17:57:10,804 [ERROR] ioc.Registry [ 3] Parsing component template
classpath:org/apache/tapestry5/corelib/pages/ExceptionReport.tml
To add to the confusion, I've never had the error trigger when running on my
workstation using Tomcat, just as installed on our server. Almost makes me
think that it is trying to write somewhere that is causing problems. I just
restarted Tomcat, and it now loads. How do I find root cause? I've turned
logging all the way up, and then there is too much noise. Since I can't get it
to trigger on my workstation, I can't get a debugger connected to figure it out
from there.
Thanks,
Richard
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
