I have a decorator around exception handling that grabs the exception and reports the entire set of nested exceptions. But I'll double check my code to be sure. :)

Robert

On Jan 18, 2008, at 1/185:03 PM , Howard M. Lewis Ship (JIRA) wrote:


[ https://issues.apache.org/jira/browse/TAPESTRY-2037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Howard M. Lewis Ship reopened TAPESTRY-2037:
--------------------------------------------


Please go into your logs and capture the full exception.

Be careful ... fundamental bugs like this can throw exceptions while reporting an exception, try to get the true, deepest, most underlying cause exception.

NullPointerException caused by many rapid page refreshes
--------------------------------------------------------

               Key: TAPESTRY-2037
               URL: https://issues.apache.org/jira/browse/TAPESTRY-2037
           Project: Tapestry
        Issue Type: Bug
        Components: tapestry-core, tapestry-ioc
  Affects Versions: 5.0.7
       Environment: jdk 1.5
          Reporter: Howard M. Lewis Ship
          Assignee: Howard M. Lewis Ship
          Priority: Critical
           Fix For: 5.0.8


This was reported on the mailing list.
In certain places, hitting the refresh button rapidly can cause a null pointer exception.
It is believed this is related to a JDK 1.5 bug:
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6550283
Tapestry makes a few uses of ThreadLocal that are consistent with this pattern. ThreadLocals are used to connect service proxies to perthread scope services. We will locate all useages of ThreadLocal and, alas, synchronize access to them.
More discussion: http://markmail.org/message/7bwztu66paz2cfqm

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