Re: Freemarker JSP support on Google App Engine

Hi
The problem I'm getting is:

Uncaught exception from servlet
java.lang.VerifyError: (class:
freemarker/ext/jsp/FreeMarkerJspApplicationContext, method: <init>
signature: ()V) Incompatible argument to function
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_.loadClassOrStub(Class_.java:261)
	at com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_.access$100(Class_.java:37)
	at com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_$2.run(Class_.java:103)
	at com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_$2.run(Class_.java:99)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_.forName(Class_.java:99)
	at freemarker.ext.jsp.FreeMarkerJspFactory21.class$(FreeMarkerJspFactory21.java:13)
	at freemarker.ext.jsp.FreeMarkerJspFactory21.<clinit>(FreeMarkerJspFactory21.java:12)
	at freemarker.ext.jsp.FreeMarkerPageContext21.<clinit>(FreeMarkerPageContext21.java:29)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)



Not the same as the one mentioned in the issue. I will send an email to the
google app engine team and see what is happening.

Cheers
Amin


On Wed, May 20, 2009 at 10:14 PM, Attila Szegedi <[email protected]> wrote:

> Here's what I wrote there (assuming you're getting the
> java.lang.IllegalAccessError: Class
> com
> .google
> .apphosting.runtime.security.shared.intercept.java.lang.reflect.Method_
> $3 can not access a member of class
> freemarker.ext.jsp.FreeMarkerPageContext2 with modifiers "static"):
>
> <quote>
> This honestly looks like a bug in AppEngine's JVM security model.
> We're invoking a package-private method
> freemarker.ext.jsp.FreeMarkerPageContext2#create() from a class in the
> same package -freemarker.ext.jsp.PageContextFactory. It ought to work.
> However, it appears that for (presumably some security purposes)
> AppEngine replaces java.lang.reflect.Method with
> com
> .google
> .apphosting
> .runtime.security.shared.intercept.java.lang.reflect.Method, and here
> security trips over itself, as a class from package
> "com
> .google
> .apphosting.runtime.security.shared.intercept.java.lang.reflect."
> can't call a method in package "freemarker.ext.jsp"...
>
> This is not a problem on ordinary JVMs as classes in java.* packages
> have special privileges. Can you file a bug report with Google
> (possibly referencing this report here) and post URL to it here? I'll
> be happy to work with them to resolve this.
> </quote>
>
> Attila.
>
> On 2009.05.20., at 17:09, Amin Mohammed-Coleman wrote:
>
> > Hi again
> >
> > I'm getting an error stating 'This artifact is not accessible.'.  I
> > really need to find out why freemarker jsp support doesn't work on
> > app engine...
> >
> > will try to see the url some other way..not sure how.
> >
> > Cheers
> > AMin
> >
> > On Wed, May 20, 2009 at 10:06 PM, Amin Mohammed-Coleman <
> [email protected]
> > > wrote:
> > Hi
> >
> > I tried that and I got an error.  Will try again.
> > Cheers
> > Amin
> >
> > Sent from my iPhone
> >
> >
> > On 20 May 2009, at 21:57, Attila Szegedi <[email protected]> wrote:
> >
> > It's weird, it didn't allow me access either until I logged in. Try
> > logging with your SourceForge account (create one first if you don't
> > have it) and then you should be able to see it.
> >
> > Attila.
> >
> > On 2009.05.20., at 16:37, Amin Mohammed-Coleman wrote:
> >
> > Hi
> >
> > Thanks for getting back to me.  Unfortunately I can't seem to access
> > the URL.  Is there an alternative to it?
> >
> > Cheers
> > Amin
> >
> > On Wed, May 20, 2009 at 8:54 PM, Attila Szegedi <[email protected]>
> > wrote:
> > Yes, see <
> https://sourceforge.net/tracker/?func=detail&atid=100794&aid=2786848&group_id=794
> >
> >
> > Attila.
> >
> > On 2009.05.20., at 15:20, Amin Mohammed-Coleman wrote:
> >
> > Hi
> >
> > Has anyone had any issues using freemarker jsp support on google app
> > engine?
> >
> >
> > Cheers
> > Amin
>
>
>
>
>
>
>
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