Hello,
Thanks for the help. This is quite a long, detailed post, but
hopefully it will help generate some documentation.
I started by making an exact copy of an existing Maven/GAE project
that I've been working on. The pom.xml file for that project has a
few build commands that run embedded ANT scripts that call the
executables in the SDK direcotry that either run the instance locally
or deploy it. Everything is done within Eclipse.
So, I've taken that copy, Right Clicked in Eclipse, Google->App Engine
Settings...
I check "Use Google App Engine" and try to set the Application ID, but
it claims that the appengine-web.xml is missing. It is currently
there under src/main/webapp/WEB-INF where the standard Maven would
place it. Without the ability at this point to designate where to
find the file, I'm stuck unless I choose to create a new project
according to the GPE FAQ.
So, I create a new Dynamic Web Project per the FAQ. I'm not really
sure what to set for Runtime or Configuration, either because I'm an
eclipse newb or I'm not entirely certain how this will run in the
end. I set that project up, copy over all of my code/resources and
the pom.xml and enable Maven Dependency Management. At this point, it
looks like a clean maven package and I pull out all of my ANT scripts
from the pom.xml (since I shouldn't need them now).
I'm using Eclipse for Java EE. Continuing with the FAQ, it talks
about enabling GWT, which I do not want to do. Elsewhere, it was
suggested that I look at the FAQ for users who are not using Eclipse
for Java EE.
So, I set the "This project has a WAR directory" (and, at this point
realize I could probably have done that on my original application
without starting from scratch and copying over the files). I am able
to enable Google App Engine for this project, but I get a few build
path errors. For example, I accidentally selected a missing SDK at
first. Selecting the correct path for the SDK in the Google Screen
didn't seem to remove the previous "bad" path, so I'm doing that
manually. It also complained about the existing GAE files in my
pom.xml, but did so in a roundabout way.
I tried doing a Maven Package per the FAQ, but it claimed
javax.persistence did not exist. I see geronimo_jpa on the "google
supplied" list of resources in my build path, but it's not working?
Anyways, put it back in my pom.xml and it packaged into the /target/
directory. (At some point, I also removed all folders from ORM
enhancement since I use Objectify).
Finally, I ran as a WebApplication. On the bright side, I'm getting
completely different problems now :) I'm getting files not found:
javax.xml.parsers.FactoryConfigurationError: Provider
org.apache.xerces.jaxp.SAXParserFactoryImpl not found
at
javax.xml.parsers.SAXParserFactory.newInstance(SAXParserFactory.java:
113)
at org.mortbay.xml.XmlParser.<init>(XmlParser.java:69)
WARNING: Nested in javax.xml.parsers.FactoryConfigurationError:
Provider org.apache.xerces.jaxp.SAXParserFactoryImpl not found:
java.lang.ClassNotFoundException: org/apache/xerces/jaxp/
SAXParserFactoryImpl
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
I'm not an expert on XML parsing - it's a small miracle I got it
working in the first place under my old deployment methods. Here are
my dependencies:
net.sf.saxon - saxon - 9.1.0.8
net.sf.saxon - saxon-dom - 9.1.0.8
xml-resolver - 1.2
xml-apis - 1.3.03
Do I know the difference between Xerces and Saxon? Nope. Do I care
what I use? Nope. Do I know if that was even a valid question?
Nope. I used Saxon merely because I was getting some errors with
Xerces back in the day, so I presumed GAE was somehow incompatible. I
see this bug report:
http://code.google.com/p/googleappengine/issues/detail?id=1367
However, I don't really understand it and/or what I need to do :)
Regardless, it was working fine *without* GPE, so I presume my issue
is a GPE bug, not an AppEngine bug.
What did I do differently this time? I believe it has something to do
with Maven Packaging options (WAR vs JAR), and failing to refresh the
"target" folder in Eclipse. I don't think that was the actual folder
I was selecting the first time I ran the Web Application when I tried
this last. So, documentation there could be helpful. I think I was
diving deep into the WTP temp folder when I couldn't figure it out.
So, it looks now as if my dependencies are somehow failing with GPE,
instead of the entire thing failing. I'm going to leave the entire
post there so you can see my process (and perhaps update some FAQs to
help make it simpler.
Thanks for any help in advance!
Jake
Jake
On Apr 14, 10:57 am, Rajeev Dayal <[email protected]> wrote:
> Hey Jake,
>
> I just took a look at the thread that you mentioned. Could you describe the
> problems that you were running into (on the original thread)? I can try and
> help you out.
>
> Rajeev
>
> On Tue, Apr 13, 2010 at 10:21 AM, John Patterson <[email protected]>wrote:
>
>
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