Hi,
I've got an app in T5 (5.0.5) which intermittently throws an
exception like:
[ERROR] ExceptionReport Render queue error in BeginRender[core/
ExceptionReport:renderobject_0]:
org.apache.tapestry.ioc.internal.util.TapestryException
org.apache.tapestry.ioc.internal.util.TapestryException [at
classpath:org/apache/tapestry/corelib/pages/ExceptionReport.html,
line 45, column 41]
at
org.apache.tapestry.internal.structure.ComponentPageElementImpl.invoke
(ComponentPageElementImpl.java:935)
Which is caused by:
Caused by: java.lang.NullPointerException
at $Request_11521d0ec62.getContextPath($Request_11521d0ec62.java)
at $Request_11521d0ec27.getContextPath($Request_11521d0ec27.java)
at org.apache.tapestry.internal.services.RequestRenderer.render
(RequestRenderer.java:34)
at org.apache.tapestry.internal.services.RequestRenderer.render
(RequestRenderer.java:24)
But notice that that's an error while /rendering/ the exception
page... something else appears to have triggered an exception, to
cause the error page to render in the first place.
On some further digging, I found:
[ERROR] RequestExceptionHandler Processing of request failed with
uncaught exception: java.lang.NullPointerException
java.lang.NullPointerException
at org.apache.tapestry.internal.services.InternalModule
$2.getCookies(InternalModule.java:294)
at $CookieSource_11521d0ec3c.getCookies
($CookieSource_11521d0ec3c.java)
at
org.apache.tapestry.internal.services.CookiesImpl.readCookieValue
(CookiesImpl.java:53)
at
org.apache.tapestry.services.PersistentLocaleImpl.getCookieValue
(PersistentLocaleImpl.java:46)
at org.apache.tapestry.services.PersistentLocaleImpl.get
(PersistentLocaleImpl.java:40)
at $PersistentLocale_11521d0ec3a.get
($PersistentLocale_11521d0ec3a.java)
at
org.apache.tapestry.internal.services.LocalizationSetterImpl.setThreadLo
cale(LocalizationSetterImpl.java:98)
at $LocalizationSetter_11521d0ec33.setThreadLocale
($LocalizationSetter_11521d0ec33.java)
at
org.apache.tapestry.internal.services.LocalizationFilter.service
(LocalizationFilter.java:41)
at $RequestHandler_11521d0ec39.service
($RequestHandler_11521d0ec39.java)
...
Appears that the request globals contain a null HttpServletRequest.
I've yet to see this on my development box (os x 10.4.10, apple's
java 5; core2duo processor), but I see it with no apparent pattern on
two different linux boxes,
(one running java 1.5.0_09, the other running 1.5.0_12; the former
running tomcat 4.0.x, the latter running tomcat 4.1.x).
Both boxes are dual cpu boxes. Has anybody else seen this?
Robert
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