I can't reproduce this error in a test case. I am out of ideas what
might have caused it. Can you possibly debug this condition to figure
out why the 'metadata' field in DataContextQueryAction is null? First
thing to check:
m_editableGroup.getObjectContext().getEntityResolver() != null
Andrus
On Mar 30, 2007, at 5:24 PM, Marc Gabriel-Willem wrote:
Hello,
Sorry, it is the first time I'm using a list like this one. So, I'm
doing some crazy error with it :) For example, I hope my "reply
all" is
a correct action to do in this case.
I saw your first reply.
I have exactly the same error when I stop and restart properly the
Tomcat server. In fact, stoping and restarting the server simulate the
serialization / deserialization operation that an application
server can
do at any time it wants (isn't it ?)
Marc
-----Original Message-----
From: Andrus Adamchik [mailto:[EMAIL PROTECTED]
Sent: Friday, March 30, 2007 3:09 PM
To: [email protected]
Cc: Marc Gabriel-Willem
Subject: Re: Cayenne -- Apache automatic deploy problem
Hi, See my original reply asking for more information here:
http://objectstyle.org/cayenne/lists/cayenne-user/2007/03/0101.html
BTW, it would be much easier to communicate if you subscribe to the
list :-)
Andrus
On Mar 30, 2007, at 4:46 PM, Marc Gabriel-Willem wrote:
Hi,
Sorry to repost that question, but I was not properly register to the
mailing list, so I was unable to reply properly.
I'm using Cayenne (2.0.2) with the apache web server (5.5.20) and I'm
facing to the following problem.
When apache does an automatic deploy, all objects are serialized /
deserialized without any error.
But after that, when the code accesses a cayenne persistent object
(member variable of a jsf backing bean), the following problem
occurs:
Caused by: java.lang.NullPointerException
at
org.apache.cayenne.access.DataContextQueryAction.interceptPaginatedQu
e
ry
(DataContextQueryAction.java:91)
at
org.apache.cayenne.access.DataContextQueryAction.execute
(DataContextQuer
yAction.java:50)
at
org.apache.cayenne.access.DataContext.onQuery(DataContext.java:1387)
at
org.apache.cayenne.access.DataContext.performQuery(DataContext.java:
1376
)
at
org.apache.cayenne.access.ToManyList.resolvedObjectList
(ToManyList.java:
307)
at
org.apache.cayenne.access.ToManyList.size(ToManyList.java:260)
at
com.sideinternational.web.profiling.group.GroupEditor.save
(GroupEditor.j
ava:246)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.jav
a:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessor
Impl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.myfaces.el.MethodBindingImpl.invoke
(MethodBindingImpl.java:13
2)
For information, the following code throws that exception (the
call to
the size() method) :
List itemsToRemove = m_editableGroup.getGroupContentArray();
for (int i=0; i < itemsToRemove.size(); i)
...
Note: Child data context and ObjectEntities are stored in a
serializable
jsf backing bean.
Thank you for your help.
Marc Gabriel
