Re: [appengine-java] Re: java.lang.NullPointerException cannot be cast to javax.servlet.ServletException
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 finbarrtay...@googlemail.comwrote:
This problem still exists.
On Dec 16 2009, 9:42 pm, polyurethan vette...@googlemail.com 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 mguille...@yahoo.fr 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
mailto: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
mguille...@yahoo.fr mailto:mguille...@yahoo.fr
mailto:mguille...@yahoo.fr 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 PrivilegedExceptionActionVoid() {
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
blessedg...@gmail.com mailto:blessedg...@gmail.com
mailto:blessedg...@gmail.com mailto:blessedg...@gmail.com
mailto:blessedg...@gmail.com
mailto:blessedg...@gmail.com mailto:blessedg...@gmail.com
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
[appengine-java] Re: java.lang.NullPointerException cannot be cast to javax.servlet.ServletException
This problem still exists.
On Dec 16 2009, 9:42 pm, polyurethan vette...@googlemail.com 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 mguille...@yahoo.fr 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
mailto: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
mguille...@yahoo.fr mailto:mguille...@yahoo.fr
mailto:mguille...@yahoo.fr 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 PrivilegedExceptionActionVoid() {
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
blessedg...@gmail.com mailto:blessedg...@gmail.com
mailto:blessedg...@gmail.com mailto:blessedg...@gmail.com
mailto:blessedg...@gmail.com
mailto:blessedg...@gmail.com mailto:blessedg...@gmail.com
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
[appengine-java] Re: java.lang.NullPointerException cannot be cast to javax.servlet.ServletException
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 mguille...@yahoo.fr 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
mailto: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
mguille...@yahoo.fr mailto:mguille...@yahoo.fr
mailto:mguille...@yahoo.fr 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 PrivilegedExceptionActionVoid() {
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
blessedg...@gmail.com mailto:blessedg...@gmail.com
mailto:blessedg...@gmail.com mailto:blessedg...@gmail.com
mailto:blessedg...@gmail.com
mailto:blessedg...@gmail.com mailto:blessedg...@gmail.com
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-j...@googlegroups.com.
To unsubscribe from this group, send email to
[appengine-java] Re: java.lang.NullPointerException cannot be cast to javax.servlet.ServletException
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
mailto: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/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
mguille...@yahoo.fr mailto:mguille...@yahoo.fr
mailto:mguille...@yahoo.fr 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 PrivilegedExceptionActionVoid() {
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
blessedg...@gmail.com mailto:blessedg...@gmail.com
mailto:blessedg...@gmail.com mailto:blessedg...@gmail.com
mailto:blessedg...@gmail.com
mailto:blessedg...@gmail.com mailto:blessedg...@gmail.com
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,
[appengine-java] Re: java.lang.NullPointerException cannot be cast to javax.servlet.ServletException
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 PrivilegedExceptionActionVoid() {
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 blessedg...@gmail.com
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
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 mguille...@yahoo.frwrote:
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 PrivilegedExceptionActionVoid() {
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 blessedg...@gmail.com
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
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 mguille...@yahoo.fr
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 PrivilegedExceptionActionVoid() {
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
blessedg...@gmail.com mailto:blessedg...@gmail.com
mailto:blessedg...@gmail.com 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
-~--~~~~--~~--~--~---
