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From: Andrus Adamchik <andrus@objectstyle.org>
To: user@cayenne.apache.org
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Subject: Re: Exception in SAXParserFactory.newInstance with 3.0M4
Date: Tue, 1 Jul 2008 19:05:03 +0300
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Hmmm... I vaguely remember fixing that in M4 (i.e. making  
"encoderClass", "passwordLocation", "passwordSource" attributes  
optional). There was indeed a version of Cayenne that absolutely  
required those attributes (M3?). Now I think it shouldn't. Can you  
doublecheck the runtime version of cayenne-server.jar that causes the  
NPE?

Andrus

On Jul 1, 2008, at 6:57 PM, Scott Anderson wrote:

> To summarize, a NullPointerException in
> DataSourceInfo.getPasswordEncoder() is presumably caused by a missing
> encoderClass attribute in the driver.xml file, despite this field  
> being
> specified with the modeler.
>
> Sounds to me like a candidate for a JIRA against the modeler.
>
> -----Original Message-----
> From: Jerald Dawson [mailto:jdawson@mrk.com]
> Sent: Tuesday, July 01, 2008 11:52 AM
> To: user@cayenne.apache.org
> Subject: Fwd: Exception in SAXParserFactory.newInstance with 3.0M4
>
> Moving this to the list:
>
>
> Begin forwarded message:
>
>> From: Jerald Dawson <jdawson@mrk.com>
>> Date: July 1, 2008 10:49:20 AM CDT
>> To: "Scott Anderson" <sanderson@airvana.com>
>> Cc: "Andrus Adamchik" <andrus@objectstyle.org>
>> Subject: Re: Exception in SAXParserFactory.newInstance with 3.0M4
>>
>> Thats interesting. Here is my drive.xml file:
>>
>> <?xml version="1.0" encoding="utf-8"?>
>> <driver project-version="3.0" class="com.mysql.jdbc.Driver">
>> 	<url value="jdbc:mysql://10.20.1.10/SystemRunner?
>> capitalizeTypenames=true"/>
>> 	<connectionPool min="1" max="1"/>
>> 	<login userName="systemrunner" password="*******"/>
>> </driver>
>>
>> As you can see, I do not have the encoderClass, passwordLocation and
>> passwordSource attributes in the login item. I'm going to try adding
>> those manually and see what happens. Again, this file was created
>> with Modeler.
>>
>> -j
>>
>> On Jul 1, 2008, at 10:30 AM, Scott Anderson wrote:
>>
>>> Judging from the stack trace, I'd guess that the encoderClass
>>> attribute
>>> of the login entity is invalid in the .driver.xml file. I'm not
>>> sure how
>>> that could happen if you created the file using the modeler. I'm
>>> copying
>>> Andrus on this, since he'll probably have a better understand of
>>> what's
>>> going on.
>>>
>>> Here's what my working driver.xml file looks like, for comparison:
>>>
>>> <?xml version="1.0" encoding="utf-8"?>
>>> <driver project-version="3.0" class="com.mysql.jdbc.Driver">
>>> 	<url value="jdbc:mysql://hostname/dbname"/>
>>> 	<connectionPool min="1" max="1"/>
>>> 	<login userName="user" password="pass"
>>> encoderClass="org.apache.cayenne.conf.PlainTextPasswordEncoder"
>>> passwordLocation="model" passwordSource="Not Applicable"/>
>>> </driver>
>>>
>>> -----Original Message-----
>>> From: Jerald Dawson [mailto:jdawson@mrk.com]
>>> Sent: Tuesday, July 01, 2008 10:41 AM
>>> To: Scott Anderson
>>> Subject: Re: Exception in SAXParserFactory.newInstance with 3.0M4
>>>
>>> Ok, I removed all the jars from my classpath except for the ones
>>> specifically needed for cayenne and that seemed to fix my class
>>> problem. I've not dug into it yet to see what jar was specifically
>>> causing it but now when I run my app, it attempts to load the
>>> cayenne.xml file. However, its throwing an exception when it tries  
>>> to
>>> load the user name and password thats stored in the xml files for
>>> access the mysql database. The exception is:
>>>
>>> ...
>>> Jul 1, 2008 9:32:24 AM
>>> org.apache.cayenne.conf.DriverDataSourceFactory
>>> $LoginHandler init
>>> INFO: loading user name and password.
>>> Jul 1, 2008 9:32:24 AM org.apache.cayenne.conf.RuntimeLoadDelegate
>>> shouldLoadDataNode
>>> INFO: Error: DataSource load failed
>>> java.lang.NullPointerException
>>> 	at
>>> org
>>> .apache
>>> .cayenne.conn.DataSourceInfo.getPasswordEncoder(DataSourceInfo.java:
>>> 207)
>>> 	at org.apache.cayenne.conf.DriverDataSourceFactory
>>> $LoginHandler.init(DriverDataSourceFactory.java:324)
>>> ...
>>>
>>> I've checked the xml files and the username and password are stored
>>> in
>>> the files. The model's password encoder is set to
>>> org.apache.cayenne.conf.PlainTextPasswordEncoder,
>>>
>>> Any help would be greatly appreciated. I feel like a newbie
>>> again. :-)
>>>
>>> -j
>>>
>>> On Jul 1, 2008, at 7:45 AM, Scott Anderson wrote:
>>>
>>>> You sure you have all of them? Ashwood, collections, lang, logging,
>>>> and
>>>> velocity, in addition to the server jar and your mysql/j driver?
>>>> In my
>>>> experience, Cayenne generally fail how you describe when one of the
>>>> non-server jars is missing.
>>>>
>>>> -----Original Message-----
>>>> From: Jerald Dawson [mailto:jdawson@mrk.com]
>>>> Sent: Monday, June 30, 2008 4:36 PM
>>>> To: user@cayenne.apache.org
>>>> Subject: Re: Exception in SAXParserFactory.newInstance with 3.0M4
>>>>
>>>> Hi Andrus
>>>>
>>>> I'm using Eclipse 3.4 for development. I've added the cayenne jars
>>>> to
>>>> my classpath and I'm running my app inside eclipse.
>>>>
>>>> -j
>>>>
>>>> On Jun 30, 2008, at 3:07 PM, Andrus Adamchik wrote:
>>>>
>>>>>> Seems to be throwing a class not found exception but I can't be
>>>>>> sure since it just ungracefully terminates the app with not stack
>>>>>> dump.
>>>>>
>>>>> This is unusual for a Java application. What type of application  
>>>>> is
>>>>> that and how do you compile and run it?
>>>>>
>>>>> (and yes - SAX parser is part of JDK, and .. well, it just works).
>>>>>
>>>>> Andrus
>>>>>
>>>>>
>>>>> On Jun 30, 2008, at 10:55 PM, Jerald Dawson wrote:
>>>>>> Hello
>>>>>>
>>>>>> I'm new to  cayenne (actually a webobjects guy) and I'm trying to
>>>>>> get it working. I'm was able able to get modeler working and I
>>>>>> created a model for accessing a mysql database. Everything seemed
>>>>>> pretty simple but now when I try to run my app that uses the
>>>>>> model,
>>>>>> when I call DataContext.createDataContext(), it terminates my  
>>>>>> app.
>>>>>> I've poked around a bit and the crash is actually happening in  
>>>>>> the
>>>>>> SAXParserFactory.newInstance method that is called during the
>>>>>> ConfigLoader initialization, specifically during the  "parser =
>>>>>> Util.createXmlReader();" call. Seems to be throwing a class not
>>>>>> found exception but I can't be sure since it just ungracefully
>>>>>> terminates the app with not stack dump. Anyway, that kind of
>>>>>> puzzles me since my understanding was the all the SAX parser  
>>>>>> stuff
>>>>>> came with java (I'm using 1.5 on Mac OS X 10.5). I thought it
>>>>>> might
>>>>>> be that it could be that it can't find my xml files but I tried
>>>>>> just hard coding the path to the cayanne.xml file and it still
>>>>>> does
>>>>>> not work. Any help would be appreciated.
>>>>>>
>>>>>> jerald dawson
>>>>>>
>>>>>>
>>>>
>>>
>>
>
>