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:jdawso..rk.com]
Sent: Tuesday, July 01, 2008 11:52 AM
To: use..ayenne.apache.org
Subject: Fwd: Exception in SAXParserFactory.newInstance with 3.0M4
Moving this to the list:
Begin forwarded message:
> From: Jerald Dawson <jdawso..rk.com>
> Date: July 1, 2008 10:49:20 AM CDT
> To: "Scott Anderson" <sanderso..irvana.com>
> Cc: "Andrus Adamchik" <andru..bjectstyle.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:jdawso..rk.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:jdawso..rk.com]
>>> Sent: Monday, June 30, 2008 4:36 PM
>>> To: use..ayenne.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
>>>>>
>>>>>
>>>
>>
>
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