Bugs item #1065491, was opened at 2004-11-12 14:51
Message generated for change (Comment added) made by starksm
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Category: JBossMX
Group: v4.0
Status: Open
Resolution: None
Priority: 5
Submitted By: Don Hill (ssswdon)
Assigned to: Scott M Stark (starksm)
Summary: war isolation issue
Initial Comment:
I am trying to get war isolation to work for the
default configuration of jboss-4.0.0, The issue I have
is that there exist a older version of castor in
default/lib folder and I need to use a newer version, I
know I can just remove it but the problem is I am
trying to use war isolation for the classloader or get
the CL to look for a class in the web-inf/lib first
before going to the parent, Here is the jboss-web.xml I
am using
<class-loading java2ClassLoadingCompliance='false'>
<loader-repository>
test.issue.com:loader=issue.war
<loader-repository-config>
java2ParentDelegaton=false
</loader-repository-config>
</loader-repository>
</class-loading>
I have tried several options and the only way I can get
it to work is by changing the setting in
jboss-service.xml to <attribute
name="Java2ClassLoadingCompliance">false</attribute>. I
have attached a war file that will dump some xml after
running through castor that is in the web-inf/lib if
the older castor is in the default/lib it will throw a
NPE, I am not sure but I think this will also be the
case in the server/all config.
----------------------------------------------------------------------
>Comment By: Scott M Stark (starksm)
Date: 2004-11-23 18:54
Message:
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The default isolation is being removed. 4.0.1RC1 uses the
same flat class loading model by default that 3.2 does and
this will read the web level class loader configuration. The
default flat class loading model has been a feature of jboss
since 3.0.x.
----------------------------------------------------------------------
Comment By: Dan Small (dsmall0)
Date: 2004-11-23 18:51
Message:
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OK, thanks.
But what about this difference between 4.0.0 and
4.0.1rc1?
That is I would like to know, if possible, what
direction jboss is going in before I update our install
doc.
Also, is this 'un-encapsulation' of dom4j and jaxen
usage a feature?
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Comment By: Scott M Stark (starksm)
Date: 2004-11-23 18:09
Message:
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The oberon war fails due to default configuration of the
tomcat container which does not read the
WEB-INF/jboss-web.xml class loader config. The
jboss-4.0.0/server/default config runs more like standalone
tomcat but it not using the servlet 2.3 class loading model
by default. Edit the
jbossweb-tomcat50.sar/META-INF/jboss-service.xml and either set:
<attribute name="Java2ClassLoadingCompliance">false</attribute>
or enable the parsing of the jboss-web.xml class loading
settings by setting:
<attribute name="UseJBossWebLoader">true</attribute>
----------------------------------------------------------------------
Comment By: Scott M Stark (starksm)
Date: 2004-11-23 07:28
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Correct. So can you provide the servlet which demonstrates
how castor is being used as requested?
----------------------------------------------------------------------
Comment By: Don Hill (ssswdon)
Date: 2004-11-23 06:09
Message:
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I want to be able to deploy a war in the default and all
config without having to modify the server configs, I
thought that I was able to add the class loading entry in
the jboss-web, jbos-app ... and get the behavior that I
needed, what I need is for the classloader of the war to
load classes from the web container e.g,
/web-inf/classes/lib before looking for the classes in the
parent CL.
hth
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Comment By: Dan Small (dsmall0)
Date: 2004-11-22 15:32
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We are having a similar pbm. Only in our case clash
is over versions of jaxen and dom4j.
Btw we have a .war that works with 3.2.5 through 3.2.
7rc1, and works with 4.0.1rc1. It does _not_ however
work with 4.0.0.
In a couple of hours from now you will be able to
download the war from
http://orbeon.sourceforge.
net/unstable-blds/presentation-server/
When it doesn't work you get a ClassCastException.
When it does you will see something similar to
this :
http://www.orbeon.com/ois/
.
Btw, shouldn't the fact that jboss exposes these
implementation details ( dom4j version ) to
clients be considered a bug?
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Comment By: Scott M Stark (starksm)
Date: 2004-11-20 09:13
Message:
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Can you provide the war doing the parsing or at least a
servlet that produces the indicated output.
----------------------------------------------------------------------
Comment By: Don Hill (ssswdon)
Date: 2004-11-12 14:53
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When it works you will get the following output
16:30:57,451 INFO [STDOUT] FieldName=:timestamp
16:30:57,451 INFO [STDOUT] Order total price = 257.5
16:30:57,521 INFO [STDOUT] FieldName=:timestamp
16:30:57,521 INFO [STDOUT] FieldName=:timestamp
16:30:57,531 INFO [STDOUT] <?xml version="1.0"
encoding="UTF-8"?>
<Order reference="12343-AHSHE-314159" total-price="257.5"
Timestamp="1100298657521"><Client><Name>Jean Smith</Name><Addr
ess>2000, Alameda de las Pulgas, San Mateo, CA
94403</Address></Client><Item
reference="RF-0001"><Quantity>10</Quantity>
<UnitPrice>8.95</UnitPrice><Description>Stuffed
Penguin</Description></Item><Item
reference="RF-0034"><Quantity>5</Quant
ity><UnitPrice>28.5</UnitPrice><Description>Chocolate</Description></Item><Item
reference="RF-3341"><Quantity>30</Quanti
ty><UnitPrice>0.85</UnitPrice><Description>Cookie</Description></Item></Order>
What we are trying to achive is to be able to deploy the war
in any config with the client having to make modifications
to the server.
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