Comment on GoogleAppEngine in google-guice

[google...@googlecode.com]

Comment by yan...@gmail.com:

check this out:

http://blog.yanivkessler.com/2011/04/simple-appengine-guice-module-part-1.html

For more information:
http://code.google.com/p/google-guice/wiki/GoogleAppEngine

[google...@googlecode.com]

Comment by JasonThr...@gmail.com:

Should probably add this to the docs above:

== App Engine Log Errors ==

App Engine will throw a {{{java.lang.reflect.InvocationTargetException}}}
when your App Engine projects starts because it tries to register a
finalizer. This is not allowed in the App Engine environment, and it is
benign to see this error: Guice will continue working normally. See:
http://code.google.com/p/google-guice/issues/detail?id=488

Note that App Engine's log output will register these errors at the
{{{INFO}}} level as:

{{{
I 2011-05-28 22:08:58.194
com.google.inject.internal.util.$FinalizableReferenceQueue$SystemLoader
loadFinalizer: Not allowed to access system class loader.
I 2011-05-28 22:08:58.258
com.google.inject.internal.util.$FinalizableReferenceQueue <init>: Failed
to start reference finalizer thread. Reference cleanup will only occur when
new references are created.
java.lang.reflect.InvocationTargetException
at
com.google.appengine.runtime.Request.process-00f20a346f2e6269(Request.java)
...

[google...@googlecode.com]

Comment by dougande...@gmail.com:

Now that Guice 3.0 is out, is App Engine compatible with Guice 3.0?

[google...@googlecode.com]

Comment by vec...@gmail.com:

yes, I use guice 3.0 with latest GAE version

[google...@googlecode.com]

Comment by kartik...@gmail.com:

Hey I am getting the following error

Uncaught exception from servlet
java.lang.NoClassDefFoundError: javax/inject/Provider
at
com.google.inject.internal.MoreTypes.canonicalizeForKey(MoreTypes.java:81)
at com.google.inject.Key.<init>(Key.java:119)
at com.google.inject.Key.get(Key.java:212)
at com.google.inject.spi.Elements$RecordingBinder.bind(Elements.java:262)
at
com.google.inject.internal.InjectorShell$RootModule.configure(InjectorShell.java:276)
at
com.google.inject.spi.Elements$RecordingBinder.install(Elements.java:223)
at com.google.inject.spi.Elements.getElements(Elements.java:101)
at
com.google.inject.internal.InjectorShell$Builder.build(InjectorShell.java:133)
at
com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:103)
I have followed all the instructions as is.
Can you tell me where I am going wrong.

[Christian Edward Gruber]

Have you included the JSR-330 jar into your app? How are you building your ultimate WAR for app engine deployment?

Christian.

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Comment by cgruberatgoog:

If you're using JSR-330 annotations (javax.inject) then you need to include
that Jar as well, or it won't be in the classpath as you see above.

[google...@googlecode.com]

Comment by alexande...@teamdev.com:

This page hasn't been updated since mid October 2011. As the comment from
March 2012 says, Guice 3.0 works with GAE for the comment author.

Is Guice 3.0 under GAE officially supported?

For more information:
https://code.google.com/p/google-guice/wiki/GoogleAppEngine

[google...@googlecode.com]

Comment by icyerasor:

If you want to use "Google Cloud Endpoints" AND Guice, it seems like you
have to extend a
GuiceSystemServiceServletModule
and register the Endpoints like this:
protected void configureServlets() {
Set<Class<?>> serviceClasses = new HashSet<Class<?>>();
serviceClasses.add(Endpoint1.class);
serviceClasses.add(Endpoint2.class);
this.serveGuiceSystemServiceServlet("/_ah/spi/*", serviceClasses);
}
Took me like forever to figure that out, why doesn't it say that anywhere!?