Deploying on Google App Engine

[Alberto Gimeno]

Hi!

I'm trying to deploy my application on Google App Engine.

I got this error: (I'm using play-1.0-stable6-r414)

# 05-26 05:00AM 29.110 play.Logger info: Play! is running in Google App Engine
# I 05-26 05:00AM 29.128 play.Logger info:
# I 05-26 05:00AM 29.128 play.Logger info: Starting
/base/data/home/apps/dmo/2.333756329075309259/WEB-INF/application
# I 05-26 05:00AM 29.137 play.Logger info: Module gae is available
(/base/data/home/apps/dmo/2.333756329075309259/WEB-INF/modules/gae)
# I 05-26 05:00AM 29.511 play.Logger info: Precompiling ...
# E 05-26 05:00AM 52.688
play.Logger error: Cannot start in PROD mode with errors
java.lang.ClassCastException:
org.codehaus.groovy.control.messages.ExceptionMessage cannot be cast
to org.codehaus.groovy.control.messages.SyntaxErrorMessage
at play.templates.Template.compile(Template.java:146)
at play.templates.TemplateLoader.scan(TemplateLoader.java:85)
at play.templates.TemplateLoader.scan(TemplateLoader.java:94)
at play.templates.TemplateLoader.scan(TemplateLoader.java:94)
at play.templates.TemplateLoader.scan(TemplateLoader.java:94)
at play.templates.TemplateLoader.getAllTemplate(TemplateLoader.java:75)
at play.Play.preCompile(Play.java:378)
at play.Play.init(Play.java:198)
at play.server.ServletWrapper.init(ServletWrapper.java:53)
at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:433)
[...]

# E 05-26 05:00AM 54.877
play.Logger niceThrowable:

@5okm1i9hb
For request null
Internal Server Error (500)

Unexpected error
Unexpected error : Application is not started

play.exceptions.UnexpectedException: Application is not started
at play.Invoker$Invocation.before(Invoker.java:65)
at play.Invoker$Invocation.doIt(Invoker.java:109)
at play.server.ServletWrapper$ServletInvocation.doIt(ServletWrapper.java:331)
at play.Invoker.invokeInThread(Invoker.java:44)
at play.server.ServletWrapper.service(ServletWrapper.java:82)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)

--
Alberto Gimeno Brieba
email y gtalk: gime...@gmail.com
blog: http://gimenete.net
web favorita: http://www.debugmodeon.com
teléfono móvil: +34 625 24 64 81

[Alberto Gimeno]

Following the manual step-by-step
http://www.playframework.org/manual/contents/gae
I get this error when running with the sdk with dev_appserver.sh

Caused by: java.lang.ClassNotFoundException:
com.google.appengine.api.memcache.MemcacheServiceFactory

I'm using appengine-java-sdk-1.2.1

And it also fails when I deploy it.

[Alberto Gimeno]

I have commented some lines on play/templates/Template.java to avoid
the ClassCastException. And this is the root exception:

play.Logger niceThrowable:

@5okm9og9d
For request null

Cannot start in PROD mode with errors

Oops: MultipleCompilationErrorsException
An unexpected error occured caused by exception
MultipleCompilationErrorsException:<br/> startup failed, General error
during class generation: Unable to get members for class
play.modules.gae.GAE java.lang.SecurityException: Unable to get
members for class play.modules.gae.GAE at
com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_$10.run(Class_.java:357)
at com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_$10.run(Class_.java:347)
at java.security.AccessController.doPrivileged(Native Method) at
com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_.getMembers(Class_.java:347)
at com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_.getDeclaredMethods(Class_.java:174)
at org.codehaus.groovy.vmplugin.v4.Java4.configureClassNode(Java4.java:50)
at

[Guillaume Bort]

Hm,

Which version of the Google App Engine SDK do you use ?
Just tried with the latest (1.2.1) and the simple tutorial just work
(in local mode almost).

[Guillaume Bort]

>>> I'm using appengine-java-sdk-1.2.1

Sorry :)

[Guillaume Bort]

Do you have these errors using the local SDK or while running on the real GAE ?

On Tue, May 26, 2009 at 3:43 PM, Guillaume Bort

[Alberto Gimeno]

These are the steps I follow:

> play-1.0-stable6/play new test-gae

I edit the conf/application.conf file putting the following new line

module.gae=${play.path}/modules/gae

(and I comment this line: #module.crud=${play.path}/modules/crud )

I edit app/controllers/Application.java. This is the index() method

public static void index() {
renderText("Hello world");
}

I run the application with play, I go to http://localhost:9000/ And
it works. It just prints "Hello world".

I edit war/WEB-INF/appengine-web.xml and put my application id and version

I generate the war

> play-1.0-stable6/play war -o ../test-gae-war

I run the application with the SDK

> appengine-java-sdk-1.2.1/bin/dev_appserver.sh ../test-gae-war/
> The server is running at http://localhost:8080/

I go to http://localhost:8080/ and this is the error

Oops: NoClassDefFoundError

An unexpected error occured caused by exception NoClassDefFoundError:
com/google/appengine/api/memcache/MemcacheServiceFactory


Then I try to update the application to google app engine:

> appengine-java-sdk-1.2.1/bin/appcfg.sh update ../test-gae-war/
> [...]
> Update completed successfully.
> Success.
> Cleaning up temporary files...

I visit my application (http://dmo.appspot.com/) and I just see an
error message. In the dashboard I can see the exception stack trace I
put in the first mail.

I have tried with different versions of play: play-1.0-stable6 and
play-1.0-stable6-r414

Thanks in advance.

On Tue, May 26, 2009 at 3:39 PM, Guillaume Bort
<guillau...@gmail.com> wrote:
>

[Guillaume Bort]

Ok these steps work for me with the 414, but I try on windows right now.
Do you use MacOS or Linux ?

There is something bad thus. If you look at the WEB-INF/lib directory
of your generated WAR, do you see some provided-* jars ?
If so delete them, and tell me if it fix the problem.

Tx

[Alberto Gimeno]

I use MacOS X. This is the content of my test-gae-war/WEB-INF/lib directory

SnakeYAML-1.2.jar
ZDB.jar
activation.jar
antlr-2.7.6.jar
asm-3.1.jar
asyncweb-common-0.9.0-SNAPSHOT.jar
backport-util-concurrent-3.0.jar
bcprov-jdk15-142.jar
c3p0-0.9.1.jar
cglib-nodep-2.2.jar
commons-beanutils.jar
commons-codec.jar
commons-collections-3.1.jar
commons-fileupload-1.2.jar
commons-httpclient.jar
commons-io.jar
commons-lang.jar
commons-logging-1.1.1.jar
compiler-jdt.jar
datanucleus-appengine-1.0.0.final.jar
datanucleus-core-1.1.0.jar
datanucleus-enhancer-1.1.0.jar
datanucleus-jpa-1.1.0.jar
dom4j-1.6.1.jar
ehcache-1.5.0.jar
ejb3-persistence.jar
ezmorph-1.0.3.jar
flexjson_modified.jar
groovy-all-1.6.1.jar
hibernate-annotations.jar
hibernate-commons-annotations.jar
hibernate-entitymanager.jar
hibernate3.jar
hsqldb.jar
htmlparser.jar
java-openid-sxip-0.9.4.339-light.jar
javassist.jar
jaxen-1.1.jar
jdo2-api-2.3-SNAPSHOT.jar
jregex1.2_01.jar
json-lib-2.2.2-jdk15.jar
jsr107cache-1.0.jar
jta.jar
junit-4.4.jar
log4j-1.2.16.jar
lucene-analyzers-2.3.1.jar
lucene-core-2.3.1.jar
mail.jar
memcached-2.1.jar
mina-core-2.0.0-M2-SNAPSHOT.jar
oval-1.31.jar
play-gae.jar
play.jar
quartz-1.6.1-RC1.jar
slf4j-api-1.5.0.jar
slf4j-log4j12-1.5.0.jar
spring-beans.jar
spring-context.jar
spring-core.jar
spy-2.4.jar


On Tue, May 26, 2009 at 4:09 PM, Guillaume Bort

[Guillaume Bort]

Well,

In fact this is because a bug with windows export the
appengine-api-1.0-sdk-1.2.0.jar to the WAR that it works for me.
It seems that the new version of the API does no more contain the
com/google/appengine/api/memcache/MemcacheServiceFactory class.

I can reproduct the bug now. It will update the API version and tell you soon.

Thanks.

[Guillaume Bort]

Ok, try the stable6-415. It should work.

On Tue, May 26, 2009 at 4:17 PM, Guillaume Bort

[Alberto Gimeno]

Many thanks. I'm going to try it! :)

On Tue, May 26, 2009 at 4:28 PM, Guillaume Bort

[Alberto Gimeno]

Now it works on my local machine with the SDK. But when I upload the
application I get this error:

Nested in javax.servlet.ServletException: init:
java.lang.NoClassDefFoundError: java.net.InetAddress is a restricted
class. Please see the Google App Engine developer's guide for more
details.
at com.google.apphosting.runtime.security.shared.stub.java.net.InetAddress.<clinit>(InetAddress.java)
at net.sf.ehcache.Cache.<clinit>(Cache.java:126)
at net.sf.ehcache.config.ConfigurationHelper.createCache(ConfigurationHelper.java:418)
at net.sf.ehcache.config.ConfigurationHelper.createDefaultCache(ConfigurationHelper.java:334)
at net.sf.ehcache.CacheManager.configure(CacheManager.java:306)
at net.sf.ehcache.CacheManager.init(CacheManager.java:226)
at net.sf.ehcache.CacheManager.<init>(CacheManager.java:213)
at net.sf.ehcache.CacheManager.create(CacheManager.java:394)
at play.cache.EhCacheImpl.<init>(EhCacheImpl.java:17)
at play.cache.EhCacheImpl.getInstance(EhCacheImpl.java:24)
at play.cache.Cache.<clinit>(Cache.java:17)
at play.Play.start(Play.java:319)
at play.Play.init(Play.java:199)
at play.server.ServletWrapper.init(ServletWrapper.java:53)

It seams that play is trying to initializate the play.cache.EhCacheImp
implementation and it doesn't work because ehcache uses
java.net.InetAddress wich is not allowed on app engine.

Thanks for your attention!

[Guillaume Bort]

Well,

I'm wonder why EHCache try to start a socket ...
Should be fixed in the 417. But I can't try on the real GAE right now.
Can you try it and tell me ?

[Alberto Gimeno]

Well, I have changed two things on play/cache/Cache.java

public static CacheImpl cacheImpl = null; // EhCacheImpl.getInstance();

And

/**
* Init the cache system.
*/
public static void init() {
/*
if (Play.configuration.getProperty("memcached",
"disabled").equals("enabled")) {
try {
cacheImpl = MemcachedImpl.getInstance();
Logger.info("Connected to memcached");
} catch (Exception e) {
Logger.error(e, "Error while connecting to memcached");
Logger.warn("Fallback to local cache");
cacheImpl = EhCacheImpl.getInstance();
}
} else {
cacheImpl = EhCacheImpl.getInstance();
}
*/
}

And now it works on the google app engine servers.

[Alberto Gimeno]

Hi!

Now it works! Thank you very much :)