[appengine-java] Re: java.lang.NullPointerException cannot be cast to javax.servlet.ServletException

2009-10-19 Thread Marc Guillemot 

Hi,

any progress on this issue?

Is it possible that it comes from a bug in Jasper, not able to recognize 
RuntimeException occurring in a PrivilegedExceptionAction?

// org.apache.jasper.runtime.PageContextImpl

public void handlePageException(final Throwable t) throws IOException,
 ServletException {
   if (t == null)
 throw new NullPointerException("null Throwable");

   if (SecurityUtil.isPackageProtectionEnabled()) {
 try {
   AccessController.doPrivileged(
   new PrivilegedExceptionAction() {
 public Void run() throws Exception {
   doHandlePageException(t);
   return null;
 }
   });
 } catch (PrivilegedActionException e) {
   Exception ex = e.getException();
   if (ex instanceof IOException) {
 throw (IOException) ex;
   } else {
 throw (ServletException) ex; <-- here?
   }
 }
   } else {
 doHandlePageException(t);
   }

}

Cheers,
Marc.

Toby Reyelts a écrit :
> There's an outstanding issue in the version of Jasper App Engine is 
> currently using that can cause exceptions escaping a JSP to be 
> incorrectly cast to ServletException. As a temporary workaround, you can 
> wrap the body of your JSP in a try-catch block to get the actual exception.
> 
> On Thu, Jul 30, 2009 at 1:13 PM, Blessed Geek  > wrote:
> 
> 
> http://cuckooberra.blessed-are-the-geek.com/TableMgr/TableMgr.jsp
> 
> Any idea what this error log means? LoggedIn.jsp is a rather simple
> jsp, getting a temp authtoken and exchanging it for a permanent one.
> My app runs fine on local eclipse plugin, but on deployment this error
> resulted.
> 
> 07-30 07:30AM 49.848
> /TableMgr/LoggedIn.jsp
> java.lang.ClassCastException: java.lang.NullPointerException cannot be
> cast to javax.servlet.ServletException
>at org.apache.jasper.runtime.PageContextImpl.handlePageException
> (PageContextImpl.java:754)
> 
> 
> 
> 
> > 


--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups 
"Google App Engine for Java" group.
To post to this group, send email to google-appengine-java@googlegroups.com
To unsubscribe from this group, send email to 
google-appengine-java+unsubscr...@googlegroups.com
For more options, visit this group at 
http://groups.google.com/group/google-appengine-java?hl=en
-~--~~~~--~~--~--~---

[appengine-java] Re: java.lang.NullPointerException cannot be cast to javax.servlet.ServletException

2009-10-19 Thread Don Schwarz 
Yes, this is:
https://issues.apache.org/bugzilla/show_bug.cgi?id=31171

We need to bundle a later version of Jasper with the App Engine SDK to fix
this.

On Mon, Oct 19, 2009 at 10:24 AM, Marc Guillemot wrote:

>
> Hi,
>
> any progress on this issue?
>
> Is it possible that it comes from a bug in Jasper, not able to recognize
> RuntimeException occurring in a PrivilegedExceptionAction?
>
> // org.apache.jasper.runtime.PageContextImpl
>
> public void handlePageException(final Throwable t) throws IOException,
> ServletException {
>   if (t == null)
> throw new NullPointerException("null Throwable");
>
>   if (SecurityUtil.isPackageProtectionEnabled()) {
> try {
>   AccessController.doPrivileged(
>   new PrivilegedExceptionAction() {
> public Void run() throws Exception {
>   doHandlePageException(t);
>   return null;
> }
>   });
> } catch (PrivilegedActionException e) {
>   Exception ex = e.getException();
>   if (ex instanceof IOException) {
> throw (IOException) ex;
>   } else {
> throw (ServletException) ex; <-- here?
>   }
> }
>   } else {
> doHandlePageException(t);
>   }
>
> }
>
> Cheers,
> Marc.
>
> Toby Reyelts a écrit :
> > There's an outstanding issue in the version of Jasper App Engine is
> > currently using that can cause exceptions escaping a JSP to be
> > incorrectly cast to ServletException. As a temporary workaround, you can
> > wrap the body of your JSP in a try-catch block to get the actual
> exception.
> >
> > On Thu, Jul 30, 2009 at 1:13 PM, Blessed Geek  > > wrote:
> >
> >
> > http://cuckooberra.blessed-are-the-geek.com/TableMgr/TableMgr.jsp
> >
> > Any idea what this error log means? LoggedIn.jsp is a rather simple
> > jsp, getting a temp authtoken and exchanging it for a permanent one.
> > My app runs fine on local eclipse plugin, but on deployment this
> error
> > resulted.
> >
> > 07-30 07:30AM 49.848
> > /TableMgr/LoggedIn.jsp
> > java.lang.ClassCastException: java.lang.NullPointerException cannot
> be
> > cast to javax.servlet.ServletException
> >at
> org.apache.jasper.runtime.PageContextImpl.handlePageException
> > (PageContextImpl.java:754)
> >
> >
> >
> >
> > >
>
>
> >
>

--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups 
"Google App Engine for Java" group.
To post to this group, send email to google-appengine-java@googlegroups.com
To unsubscribe from this group, send email to 
google-appengine-java+unsubscr...@googlegroups.com
For more options, visit this group at 
http://groups.google.com/group/google-appengine-java?hl=en
-~--~~~~--~~--~--~---

[appengine-java] Re: java.lang.NullPointerException cannot be cast to javax.servlet.ServletException

2009-10-19 Thread Marc Guillemot 

This seems to be a really old issue that relates to something 
different... or do you mean that GAE uses a 5 years old version of Jasper?

I've just look at the current sources of PageContextImpl
http://svn.apache.org/repos/asf/tomcat/trunk/java/org/apache/jasper/runtime/PageContextImpl.java
and it seems to me that the problem still exists there.

Cheers,
Marc.

Don Schwarz a écrit :
> Yes, this is:
> 
> https://issues.apache.org/bugzilla/show_bug.cgi?id=31171
> 
> We need to bundle a later version of Jasper with the App Engine SDK to 
> fix this.
> 
> On Mon, Oct 19, 2009 at 10:24 AM, Marc Guillemot  > wrote:
> 
> 
> Hi,
> 
> any progress on this issue?
> 
> Is it possible that it comes from a bug in Jasper, not able to recognize
> RuntimeException occurring in a PrivilegedExceptionAction?
> 
> // org.apache.jasper.runtime.PageContextImpl
> 
> public void handlePageException(final Throwable t) throws IOException,
> ServletException {
>   if (t == null)
> throw new NullPointerException("null Throwable");
> 
>   if (SecurityUtil.isPackageProtectionEnabled()) {
> try {
>   AccessController.doPrivileged(
>   new PrivilegedExceptionAction() {
> public Void run() throws Exception {
>   doHandlePageException(t);
>   return null;
> }
>   });
> } catch (PrivilegedActionException e) {
>   Exception ex = e.getException();
>   if (ex instanceof IOException) {
> throw (IOException) ex;
>   } else {
> throw (ServletException) ex; <-- here?
>   }
> }
>   } else {
> doHandlePageException(t);
>   }
> 
> }
> 
> Cheers,
> Marc.
> 
> Toby Reyelts a écrit :
>  > There's an outstanding issue in the version of Jasper App Engine is
>  > currently using that can cause exceptions escaping a JSP to be
>  > incorrectly cast to ServletException. As a temporary workaround,
> you can
>  > wrap the body of your JSP in a try-catch block to get the actual
> exception.
>  >
>  > On Thu, Jul 30, 2009 at 1:13 PM, Blessed Geek
> mailto:blessedg...@gmail.com>
>  > >> wrote:
>  >
>  >
>  > http://cuckooberra.blessed-are-the-geek.com/TableMgr/TableMgr.jsp
>  >
>  > Any idea what this error log means? LoggedIn.jsp is a rather
> simple
>  > jsp, getting a temp authtoken and exchanging it for a
> permanent one.
>  > My app runs fine on local eclipse plugin, but on deployment
> this error
>  > resulted.
>  >
>  > 07-30 07:30AM 49.848
>  > /TableMgr/LoggedIn.jsp
>  > java.lang.ClassCastException: java.lang.NullPointerException
> cannot be
>  > cast to javax.servlet.ServletException
>  >at
> org.apache.jasper.runtime.PageContextImpl.handlePageException
>  > (PageContextImpl.java:754)
>  >
>  >
>  >
>  >
>  > >
> 
> 
> 
> 
> 
> > 


--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups 
"Google App Engine for Java" group.
To post to this group, send email to google-appengine-java@googlegroups.com
To unsubscribe from this group, send email to 
google-appengine-java+unsubscr...@googlegroups.com
For more options, visit this group at 
http://groups.google.com/group/google-appengine-java?hl=en
-~--~~~~--~~--~--~---

[appengine-java] Re: java.lang.NullPointerException cannot be cast to javax.servlet.ServletException

2009-10-19 Thread Don Schwarz 
Ah, you're right actually.  I hadn't looked closely enough at that bug.
We'll have to get the Jasper guys to fix that and then upgrade.

Thanks,
Don

On Mon, Oct 19, 2009 at 10:39 AM, Marc Guillemot wrote:

>
> This seems to be a really old issue that relates to something
> different... or do you mean that GAE uses a 5 years old version of Jasper?
>
> I've just look at the current sources of PageContextImpl
>
> http://svn.apache.org/repos/asf/tomcat/trunk/java/org/apache/jasper/runtime/PageContextImpl.java
> and it seems to me that the problem still exists there.
>
> Cheers,
> Marc.
>
> Don Schwarz a écrit :
> > Yes, this is:
> >
> > https://issues.apache.org/bugzilla/show_bug.cgi?id=31171
> >
> > We need to bundle a later version of Jasper with the App Engine SDK to
> > fix this.
> >
> > On Mon, Oct 19, 2009 at 10:24 AM, Marc Guillemot  > > wrote:
> >
> >
> > Hi,
> >
> > any progress on this issue?
> >
> > Is it possible that it comes from a bug in Jasper, not able to
> recognize
> > RuntimeException occurring in a PrivilegedExceptionAction?
> >
> > // org.apache.jasper.runtime.PageContextImpl
> >
> > public void handlePageException(final Throwable t) throws
> IOException,
> > ServletException {
> >   if (t == null)
> > throw new NullPointerException("null Throwable");
> >
> >   if (SecurityUtil.isPackageProtectionEnabled()) {
> > try {
> >   AccessController.doPrivileged(
> >   new PrivilegedExceptionAction() {
> > public Void run() throws Exception {
> >   doHandlePageException(t);
> >   return null;
> > }
> >   });
> > } catch (PrivilegedActionException e) {
> >   Exception ex = e.getException();
> >   if (ex instanceof IOException) {
> > throw (IOException) ex;
> >   } else {
> > throw (ServletException) ex; <-- here?
> >   }
> > }
> >   } else {
> > doHandlePageException(t);
> >   }
> >
> > }
> >
> > Cheers,
> > Marc.
> >
> > Toby Reyelts a écrit :
> >  > There's an outstanding issue in the version of Jasper App Engine
> is
> >  > currently using that can cause exceptions escaping a JSP to be
> >  > incorrectly cast to ServletException. As a temporary workaround,
> > you can
> >  > wrap the body of your JSP in a try-catch block to get the actual
> > exception.
> >  >
> >  > On Thu, Jul 30, 2009 at 1:13 PM, Blessed Geek
> > mailto:blessedg...@gmail.com>
> >  > >>
> wrote:
> >  >
> >  >
> >  >
> http://cuckooberra.blessed-are-the-geek.com/TableMgr/TableMgr.jsp
> >  >
> >  > Any idea what this error log means? LoggedIn.jsp is a rather
> > simple
> >  > jsp, getting a temp authtoken and exchanging it for a
> > permanent one.
> >  > My app runs fine on local eclipse plugin, but on deployment
> > this error
> >  > resulted.
> >  >
> >  > 07-30 07:30AM 49.848
> >  > /TableMgr/LoggedIn.jsp
> >  > java.lang.ClassCastException: java.lang.NullPointerException
> > cannot be
> >  > cast to javax.servlet.ServletException
> >  >at
> > org.apache.jasper.runtime.PageContextImpl.handlePageException
> >  > (PageContextImpl.java:754)
> >  >
> >  >
> >  >
> >  >
> >  > >
> >
> >
> >
> >
> >
> > >
>
>
> >
>

--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups 
"Google App Engine for Java" group.
To post to this group, send email to google-appengine-java@googlegroups.com
To unsubscribe from this group, send email to 
google-appengine-java+unsubscr...@googlegroups.com
For more options, visit this group at 
http://groups.google.com/group/google-appengine-java?hl=en
-~--~~~~--~~--~--~---

[appengine-java] Re: java.lang.NullPointerException cannot be cast to javax.servlet.ServletException

2009-10-22 Thread Marc Guillemot 

Don,

I've tried to produce a unit test to open an issue for Jasper... and failed.

I'm now quite sure that this is a bug in the JVM used for GAE.

The JavaDoc of AccessController.doPrivileged (which is a native method) 
says that it propagates unchecked exceptions and throws a 
PrivilegedActionException only if a *checked* exception was thrown. 
Therefore Jasper code is correct not to await a RuntimeException as a 
PrivilegedActionException can't contain a NullPointerException and GAE's 
JVM is buggy here.

Cheers,
Marc.

Don Schwarz a écrit :
> Ah, you're right actually.  I hadn't looked closely enough at that bug.
> 
> We'll have to get the Jasper guys to fix that and then upgrade.
> 
> Thanks,
> Don
> 
> On Mon, Oct 19, 2009 at 10:39 AM, Marc Guillemot  > wrote:
> 
> 
> This seems to be a really old issue that relates to something
> different... or do you mean that GAE uses a 5 years old version of
> Jasper?
> 
> I've just look at the current sources of PageContextImpl
> 
> http://svn.apache.org/repos/asf/tomcat/trunk/java/org/apache/jasper/runtime/PageContextImpl.java
> and it seems to me that the problem still exists there.
> 
> Cheers,
> Marc.
> 
> Don Schwarz a écrit :
>  > Yes, this is:
>  >
>  > https://issues.apache.org/bugzilla/show_bug.cgi?id=31171
>  >
>  > We need to bundle a later version of Jasper with the App Engine
> SDK to
>  > fix this.
>  >
>  > On Mon, Oct 19, 2009 at 10:24 AM, Marc Guillemot
> mailto:mguille...@yahoo.fr>
>  > >> wrote:
>  >
>  >
>  > Hi,
>  >
>  > any progress on this issue?
>  >
>  > Is it possible that it comes from a bug in Jasper, not able
> to recognize
>  > RuntimeException occurring in a PrivilegedExceptionAction?
>  >
>  > // org.apache.jasper.runtime.PageContextImpl
>  >
>  > public void handlePageException(final Throwable t) throws
> IOException,
>  > ServletException {
>  >   if (t == null)
>  > throw new NullPointerException("null Throwable");
>  >
>  >   if (SecurityUtil.isPackageProtectionEnabled()) {
>  > try {
>  >   AccessController.doPrivileged(
>  >   new PrivilegedExceptionAction() {
>  > public Void run() throws Exception {
>  >   doHandlePageException(t);
>  >   return null;
>  > }
>  >   });
>  > } catch (PrivilegedActionException e) {
>  >   Exception ex = e.getException();
>  >   if (ex instanceof IOException) {
>  > throw (IOException) ex;
>  >   } else {
>  > throw (ServletException) ex; <-- here?
>  >   }
>  > }
>  >   } else {
>  > doHandlePageException(t);
>  >   }
>  >
>  > }
>  >
>  > Cheers,
>  > Marc.
>  >
>  > Toby Reyelts a écrit :
>  >  > There's an outstanding issue in the version of Jasper App
> Engine is
>  >  > currently using that can cause exceptions escaping a JSP to be
>  >  > incorrectly cast to ServletException. As a temporary
> workaround,
>  > you can
>  >  > wrap the body of your JSP in a try-catch block to get the
> actual
>  > exception.
>  >  >
>  >  > On Thu, Jul 30, 2009 at 1:13 PM, Blessed Geek
>  > mailto:blessedg...@gmail.com>
> >
>  >  >      >  >
>  >  >
>  >  >
> http://cuckooberra.blessed-are-the-geek.com/TableMgr/TableMgr.jsp
>  >  >
>  >  > Any idea what this error log means? LoggedIn.jsp is a
> rather
>  > simple
>  >  > jsp, getting a temp authtoken and exchanging it for a
>  > permanent one.
>  >  > My app runs fine on local eclipse plugin, but on
> deployment
>  > this error
>  >  > resulted.
>  >  >
>  >  > 07-30 07:30AM 49.848
>  >  > /TableMgr/LoggedIn.jsp
>  >  > java.lang.ClassCastException:
> java.lang.NullPointerException
>  > cannot be
>  >  > cast to javax.servlet.ServletException
>  >  >at
>  > org.apache.jasper.runtime.PageContextImpl.handlePageException
>  >  > (PageContextImpl.java:754)
>  >  >
>  >  >
>  >  >
>  >  >
>  >  > >
>  >
>  >
>  >
>  >
>  >
>  > >
> 
> 
> 
> 
> 
> > 


--~--~-~--~~~---~--~~

[appengine-java] Re: java.lang.NullPointerException cannot be cast to javax.servlet.ServletException

2009-12-16 Thread polyurethan 
Hey there,

I still get this ClassCastException. When will the JVM be fixed?
It's Dec and the issue was raised in Jul. Is there any progress?

Thanks,
Alexander

On Oct 22, 10:13 am, Marc Guillemot  wrote:
> Don,
>
> I've tried to produce a unit test to open an issue for Jasper... and failed.
>
> I'm now quite sure that this is a bug in the JVM used for GAE.
>
> The JavaDoc of AccessController.doPrivileged (which is a native method)
> says that it propagates unchecked exceptions and throws a
> PrivilegedActionException only if a *checked* exception was thrown.
> Therefore Jasper code is correct not to await a RuntimeException as a
> PrivilegedActionException can't contain a NullPointerException and GAE's
> JVM is buggy here.
>
> Cheers,
> Marc.
>
> Don Schwarz a écrit :> Ah, you're right actually.  I hadn't looked closely 
> enough at that bug.
>
> > We'll have to get the Jasper guys to fix that and then upgrade.
>
> > Thanks,
> > Don
>
> > On Mon, Oct 19, 2009 at 10:39 AM, Marc Guillemot  > > wrote:
>
> >     This seems to be a really old issue that relates to something
> >     different... or do you mean that GAE uses a 5 years old version of
> >     Jasper?
>
> >     I've just look at the current sources of PageContextImpl
> >    http://svn.apache.org/repos/asf/tomcat/trunk/java/org/apache/jasper/r...
> >     and it seems to me that the problem still exists there.
>
> >     Cheers,
> >     Marc.
>
> >     Don Schwarz a écrit :
> >      > Yes, this is:
>
> >      >https://issues.apache.org/bugzilla/show_bug.cgi?id=31171
>
> >      > We need to bundle a later version of Jasper with the App Engine
> >     SDK to
> >      > fix this.
>
> >      > On Mon, Oct 19, 2009 at 10:24 AM, Marc Guillemot
> >     mailto:mguille...@yahoo.fr>
> >      > >> wrote:
>
> >      >     Hi,
>
> >      >     any progress on this issue?
>
> >      >     Is it possible that it comes from a bug in Jasper, not able
> >     to recognize
> >      >     RuntimeException occurring in a PrivilegedExceptionAction?
>
> >      >     // org.apache.jasper.runtime.PageContextImpl
>
> >      >     public void handlePageException(final Throwable t) throws
> >     IOException,
> >      >         ServletException {
> >      >       if (t == null)
> >      >         throw new NullPointerException("null Throwable");
>
> >      >       if (SecurityUtil.isPackageProtectionEnabled()) {
> >      >         try {
> >      >           AccessController.doPrivileged(
> >      >               new PrivilegedExceptionAction() {
> >      >             public Void run() throws Exception {
> >      >               doHandlePageException(t);
> >      >               return null;
> >      >             }
> >      >           });
> >      >         } catch (PrivilegedActionException e) {
> >      >           Exception ex = e.getException();
> >      >           if (ex instanceof IOException) {
> >      >             throw (IOException) ex;
> >      >           } else {
> >      >             throw (ServletException) ex; <-- here?
> >      >           }
> >      >         }
> >      >       } else {
> >      >         doHandlePageException(t);
> >      >       }
>
> >      >     }
>
> >      >     Cheers,
> >      >     Marc.
>
> >      >     Toby Reyelts a écrit :
> >      >      > There's an outstanding issue in the version of Jasper App
> >     Engine is
> >      >      > currently using that can cause exceptions escaping a JSP to be
> >      >      > incorrectly cast to ServletException. As a temporary
> >     workaround,
> >      >     you can
> >      >      > wrap the body of your JSP in a try-catch block to get the
> >     actual
> >      >     exception.
>
> >      >      > On Thu, Jul 30, 2009 at 1:13 PM, Blessed Geek
> >      >     mailto:blessedg...@gmail.com>
> >     >
> >      >      >  >       >     
> >    http://cuckooberra.blessed-are-the-geek.com/TableMgr/TableMgr.jsp
>
> >      >      >     Any idea what this error log means? LoggedIn.jsp is a
> >     rather
> >      >     simple
> >      >      >     jsp, getting a temp authtoken and exchanging it for a
> >      >     permanent one.
> >      >      >     My app runs fine on local eclipse plugin, but on
> >     deployment
> >      >     this error
> >      >      >     resulted.
>
> >      >      >     07-30 07:30AM 49.848
> >      >      >     /TableMgr/LoggedIn.jsp
> >      >      >     java.lang.ClassCastException:
> >     java.lang.NullPointerException
> >      >     cannot be
> >      >      >     cast to javax.servlet.ServletException
> >      >      >            at
> >      >     org.apache.jasper.runtime.PageContextImpl.handlePageException
> >      >      >     (PageContextImpl.java:754)

--

You received this mes

[appengine-java] Re: java.lang.NullPointerException cannot be cast to javax.servlet.ServletException

2010-01-07 Thread Ftaylor 
This problem still exists.

On Dec 16 2009, 9:42 pm, polyurethan  wrote:
> Hey there,
>
> I still get this ClassCastException. When will the JVM be fixed?
> It's Dec and the issue was raised in Jul. Is there any progress?
>
> Thanks,
> Alexander
>
> On Oct 22, 10:13 am, Marc Guillemot  wrote:
>
>
>
> > Don,
>
> > I've tried to produce a unit test to open an issue for Jasper... and failed.
>
> > I'm now quite sure that this is a bug in the JVM used for GAE.
>
> > The JavaDoc of AccessController.doPrivileged (which is a native method)
> > says that it propagates unchecked exceptions and throws a
> > PrivilegedActionException only if a *checked* exception was thrown.
> > Therefore Jasper code is correct not to await a RuntimeException as a
> > PrivilegedActionException can't contain a NullPointerException and GAE's
> > JVM is buggy here.
>
> > Cheers,
> > Marc.
>
> > Don Schwarz a écrit :> Ah, you're right actually.  I hadn't looked closely 
> > enough at that bug.
>
> > > We'll have to get the Jasper guys to fix that and then upgrade.
>
> > > Thanks,
> > > Don
>
> > > On Mon, Oct 19, 2009 at 10:39 AM, Marc Guillemot  > > > wrote:
>
> > >     This seems to be a really old issue that relates to something
> > >     different... or do you mean that GAE uses a 5 years old version of
> > >     Jasper?
>
> > >     I've just look at the current sources of PageContextImpl
> > >    
> > > http://svn.apache.org/repos/asf/tomcat/trunk/java/org/apache/jasper/r...
> > >     and it seems to me that the problem still exists there.
>
> > >     Cheers,
> > >     Marc.
>
> > >     Don Schwarz a écrit :
> > >      > Yes, this is:
>
> > >      >https://issues.apache.org/bugzilla/show_bug.cgi?id=31171
>
> > >      > We need to bundle a later version of Jasper with the App Engine
> > >     SDK to
> > >      > fix this.
>
> > >      > On Mon, Oct 19, 2009 at 10:24 AM, Marc Guillemot
> > >     mailto:mguille...@yahoo.fr>
> > >      > >> wrote:
>
> > >      >     Hi,
>
> > >      >     any progress on this issue?
>
> > >      >     Is it possible that it comes from a bug in Jasper, not able
> > >     to recognize
> > >      >     RuntimeException occurring in a PrivilegedExceptionAction?
>
> > >      >     // org.apache.jasper.runtime.PageContextImpl
>
> > >      >     public void handlePageException(final Throwable t) throws
> > >     IOException,
> > >      >         ServletException {
> > >      >       if (t == null)
> > >      >         throw new NullPointerException("null Throwable");
>
> > >      >       if (SecurityUtil.isPackageProtectionEnabled()) {
> > >      >         try {
> > >      >           AccessController.doPrivileged(
> > >      >               new PrivilegedExceptionAction() {
> > >      >             public Void run() throws Exception {
> > >      >               doHandlePageException(t);
> > >      >               return null;
> > >      >             }
> > >      >           });
> > >      >         } catch (PrivilegedActionException e) {
> > >      >           Exception ex = e.getException();
> > >      >           if (ex instanceof IOException) {
> > >      >             throw (IOException) ex;
> > >      >           } else {
> > >      >             throw (ServletException) ex; <-- here?
> > >      >           }
> > >      >         }
> > >      >       } else {
> > >      >         doHandlePageException(t);
> > >      >       }
>
> > >      >     }
>
> > >      >     Cheers,
> > >      >     Marc.
>
> > >      >     Toby Reyelts a écrit :
> > >      >      > There's an outstanding issue in the version of Jasper App
> > >     Engine is
> > >      >      > currently using that can cause exceptions escaping a JSP to 
> > > be
> > >      >      > incorrectly cast to ServletException. As a temporary
> > >     workaround,
> > >      >     you can
> > >      >      > wrap the body of your JSP in a try-catch block to get the
> > >     actual
> > >      >     exception.
>
> > >      >      > On Thu, Jul 30, 2009 at 1:13 PM, Blessed Geek
> > >      >     mailto:blessedg...@gmail.com>
> > >     >
> > >      >      >  > >       > >     
> > >    http://cuckooberra.blessed-are-the-geek.com/TableMgr/TableMgr.jsp
>
> > >      >      >     Any idea what this error log means? LoggedIn.jsp is a
> > >     rather
> > >      >     simple
> > >      >      >     jsp, getting a temp authtoken and exchanging it for a
> > >      >     permanent one.
> > >      >      >     My app runs fine on local eclipse plugin, but on
> > >     deployment
> > >      >     this error
> > >      >      >     resulted.
>
> > >      >      >     07-30 07:30AM 49.848
> > >      >      >     /TableMgr/LoggedIn.jsp
> > >      >      >     java.lang.ClassCastException:
> > >

Re: [appengine-java] Re: java.lang.NullPointerException cannot be cast to javax.servlet.ServletException

2010-01-13 Thread Don Schwarz 
This problem will be fixed in the next release.  It was indeed an issue
with AccessController.doPrivileged as Marc had hypothesized below.

Thanks, Marc!

On Thu, Jan 7, 2010 at 4:43 AM, Ftaylor wrote:

> This problem still exists.
>
> On Dec 16 2009, 9:42 pm, polyurethan  wrote:
> > Hey there,
> >
> > I still get this ClassCastException. When will the JVM be fixed?
> > It's Dec and the issue was raised in Jul. Is there any progress?
> >
> > Thanks,
> > Alexander
> >
> > On Oct 22, 10:13 am, Marc Guillemot  wrote:
> >
> >
> >
> > > Don,
> >
> > > I've tried to produce a unit test to open an issue for Jasper... and
> failed.
> >
> > > I'm now quite sure that this is a bug in the JVM used for GAE.
> >
> > > The JavaDoc of AccessController.doPrivileged (which is a native method)
> > > says that it propagates unchecked exceptions and throws a
> > > PrivilegedActionException only if a *checked* exception was thrown.
> > > Therefore Jasper code is correct not to await a RuntimeException as a
> > > PrivilegedActionException can't contain a NullPointerException and
> GAE's
> > > JVM is buggy here.
> >
> > > Cheers,
> > > Marc.
> >
> > > Don Schwarz a écrit :> Ah, you're right actually.  I hadn't looked
> closely enough at that bug.
> >
> > > > We'll have to get the Jasper guys to fix that and then upgrade.
> >
> > > > Thanks,
> > > > Don
> >
> > > > On Mon, Oct 19, 2009 at 10:39 AM, Marc Guillemot <
> mguille...@yahoo.fr
> > > > > wrote:
> >
> > > > This seems to be a really old issue that relates to something
> > > > different... or do you mean that GAE uses a 5 years old version
> of
> > > > Jasper?
> >
> > > > I've just look at the current sources of PageContextImpl
> > > >
> http://svn.apache.org/repos/asf/tomcat/trunk/java/org/apache/jasper/r...
> > > > and it seems to me that the problem still exists there.
> >
> > > > Cheers,
> > > > Marc.
> >
> > > > Don Schwarz a écrit :
> > > >  > Yes, this is:
> >
> > > >  >https://issues.apache.org/bugzilla/show_bug.cgi?id=31171
> >
> > > >  > We need to bundle a later version of Jasper with the App
> Engine
> > > > SDK to
> > > >  > fix this.
> >
> > > >  > On Mon, Oct 19, 2009 at 10:24 AM, Marc Guillemot
> > > > mailto:mguille...@yahoo.fr>
> > > >  > >>
> wrote:
> >
> > > >  > Hi,
> >
> > > >  > any progress on this issue?
> >
> > > >  > Is it possible that it comes from a bug in Jasper, not
> able
> > > > to recognize
> > > >  > RuntimeException occurring in a PrivilegedExceptionAction?
> >
> > > >  > // org.apache.jasper.runtime.PageContextImpl
> >
> > > >  > public void handlePageException(final Throwable t) throws
> > > > IOException,
> > > >  > ServletException {
> > > >  >   if (t == null)
> > > >  > throw new NullPointerException("null Throwable");
> >
> > > >  >   if (SecurityUtil.isPackageProtectionEnabled()) {
> > > >  > try {
> > > >  >   AccessController.doPrivileged(
> > > >  >   new PrivilegedExceptionAction() {
> > > >  > public Void run() throws Exception {
> > > >  >   doHandlePageException(t);
> > > >  >   return null;
> > > >  > }
> > > >  >   });
> > > >  > } catch (PrivilegedActionException e) {
> > > >  >   Exception ex = e.getException();
> > > >  >   if (ex instanceof IOException) {
> > > >  > throw (IOException) ex;
> > > >  >   } else {
> > > >  > throw (ServletException) ex; <-- here?
> > > >  >   }
> > > >  > }
> > > >  >   } else {
> > > >  > doHandlePageException(t);
> > > >  >   }
> >
> > > >  > }
> >
> > > >  > Cheers,
> > > >  > Marc.
> >
> > > >  > Toby Reyelts a écrit :
> > > >  >  > There's an outstanding issue in the version of Jasper
> App
> > > > Engine is
> > > >  >  > currently using that can cause exceptions escaping a
> JSP to be
> > > >  >  > incorrectly cast to ServletException. As a temporary
> > > > workaround,
> > > >  > you can
> > > >  >  > wrap the body of your JSP in a try-catch block to get
> the
> > > > actual
> > > >  > exception.
> >
> > > >  >  > On Thu, Jul 30, 2009 at 1:13 PM, Blessed Geek
> > > >  > mailto:blessedg...@gmail.com>
> > > > >
> > > >  >  >  > > >   > > >  >
> > > >http://cuckooberra.blessed-are-the-geek.com/TableMgr/TableMgr.jsp
> >
> > > >  >  > Any idea what this error log me