Thank you for your reply again, Eric.
I looked at the generateGadgetManifest method (line 261 in
http://www.google.com/codesearch/p?hl=en&sa=N&cd=1&ct=rc#ow6Lmd7dcZY/trunk/gadgets/gadgets/src/com/google/gwt/gadgets/rebind/GadgetGenerator.java&q=generateGadgetManifest%20package:http://gwt-google-apis\.googlecode\.com),
and I could repro this with really simple regular Java project (not
GWT project) like below copied code. So, no GWT library (and, of
cause, no AppEngine library) in class path.
public static void main(String[] args) {
try {
org.w3c.dom.bootstrap.DOMImplementationRegistry
registry =
org.w3c.dom.bootstrap.DOMImplementationRegistry.newInstance();
org.w3c.dom.DOMImplementation impl =
registry.getDOMImplementation
("Core 3.0");
org.w3c.dom.Document d = impl.createDocument(null,
null, null);
}
catch( Exception exception) {
exception.printStackTrace();
}
}
When I run it, I got the same exception like below at the statement,
"org.w3c.dom.Document d = impl.createDocument(null, null, null);":
org.w3c.dom.DOMException: NAMESPACE_ERR: An attempt is made to create
or change an object in a way which is incorrect with regard to
namespaces.
at com.sun.org.apache.xerces.internal.dom.ElementNSImpl.setName
(ElementNSImpl.java:105)
at com.sun.org.apache.xerces.internal.dom.ElementNSImpl.<init>
(ElementNSImpl.java:80)
at
com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.createElementNS
(CoreDocumentImpl.java:2084)
at
com.sun.org.apache.xerces.internal.dom.CoreDOMImplementationImpl.createDocument
(CoreDOMImplementationImpl.java:268)
at
com.myexperiment.domimplementationregistrytrace.DOMImplementationRegistryTrace.main
(DOMImplementationRegistryTrace.java:113)
As I wrote at the beginning of this thread, my environment is (x86)
Sun JDK 1.6.0_13.
The rt.jar in the JRE lib folder of that JDK contains
com.sun.org.apache.xerces.internal.dom package. Mater of the fact, JDK
1.5's rt.jar also contains com.sun.org.apache.xerces.internal.dom
package.
I don't know how you guys have being doing not to hit this. Do you set
something to class loader?
Regards
On Aug 7, 5:59 pm, Eric Ayers <zun...@google.com> wrote:
> I'm not sure why this would fix the problem you're seeing, but have
> you tried rebuilding the gadgets distribution from SVN trunk? I think
> if you get past this problem, you're doing to find another one since
> you are using GWT 1.6:
>
> See issue 275:
>
> http://code.google.com/p/gwt-google-apis/issues/detail?id=275
>
>
>
> On Fri, Aug 7, 2009 at 8:31 PM, Art<art...@gmail.com> wrote:
>
> > Eric, thank you for your reply.
>
> > The thing is that I encounter this issue by trying to work around the
> > Xerces class issue.
> > I had encountered the Xerces class issue with Google GWT Gadget
> > library file described at
> >http://groups.google.com/group/google-appengine-java/browse_frm/threa....
> > Thereby, as I wrote, I picked up the gwt-gadgets-noredist.jar from
> >http://gwt-google-apis.googlecode.com/files/gwt-gadgets-1.0.3.tar.gz,
> > which does not contain Xerces classes (And I confirmed that gwt-
> > gadgets-noredist.jar does not contain Xerces classes.)
> > So, I had good expectation of that it would compile without a problem.
> > But.. I got this issue.
>
> > Regards
>
> > On Aug 6, 7:51 pm, Eric Ayers <zun...@google.com> wrote:
> >> This error I've seen caused by a conflict in Xerces distributed with
> >> gwt-gadget.jar. Try using the gwt-gadget-noredist.jar file. It
> >> doesn't bundle the Xerces library.
>
> >> On Thu, Aug 6, 2009 at 10:36 PM, Art<art...@gmail.com> wrote:
>
> >> > Hello,
>
> >> > I'm blocked from trying to have fun with Google gadget and GWT. ;-)
> >> > I got the exception like below in trying to compile a simple Google
> >> > gadget on Eclipse (Galileo).
> >> > I highly appreciate if someone can give me the crew of this cause.
> >> > Regards.
>
> >> > Compiling module com.inetools.igadgetexperiment2.IGadgetExperiment2
> >> > Computing all possible rebind results for
> >> > 'com.inetools.igadgetexperiment2.client.IGadgetExperiment2'
> >> > Rebinding
> >> > com.inetools.igadgetexperiment2.client.IGadgetExperiment2
> >> > Invoking <generate-with
> >> > class='com.google.gwt.gadgets.rebind.GadgetGenerator'/>
> >> > [ERROR] Generator
> >> > 'com.google.gwt.gadgets.rebind.GadgetGenerator' threw threw an
> >> > exception while rebinding
> >> > 'com.inetools.igadgetexperiment2.client.IGadgetExperiment2'
> >> > org.w3c.dom.DOMException: NAMESPACE_ERR: An attempt is made to create
> >> > or change an object in a way which is incorrect with regard to
> >> > namespaces.
> >> > at com.sun.org.apache.xerces.internal.dom.ElementNSImpl.setName
> >> > (ElementNSImpl.java:105)
> >> > at com.sun.org.apache.xerces.internal.dom.ElementNSImpl.<init>
> >> > (ElementNSImpl.java:80)
> >> > at
> >> > com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.createElementNS
> >> > (CoreDocumentImpl.java:2084)
> >> > at
> >> > com.sun.org.apache.xerces.internal.dom.CoreDOMImplementationImpl.createDocument
> >> > (CoreDOMImplementationImpl.java:268)
>
> >> > Here's the Google gadget class (IGadgetExperiment2.java) I try to
> >> > compile:
> >> > package com.inetools.igadgetexperiment2.client;
>
> >> > import com.google.gwt.event.dom.client.ClickEvent;
> >> > import com.google.gwt.event.dom.client.ClickHandler;
> >> > import com.google.gwt.gadgets.client.Gadget;
> >> > import com.google.gwt.gadgets.client.UserPreferences;
> >> > import com.google.gwt.gadgets.client.Gadget.ModulePrefs;
> >> > import com.google.gwt.user.client.Window;
> >> > import com.google.gwt.user.client.ui.Button;
> >> > import com.google.gwt.user.client.ui.RootPanel;
>
> >> > @ModulePrefs( title = "iGoogle Gadget Experiement2", author = "Art",
> >> > author_email = "atozof...@gmail.com")
> >> > public class IGadgetExperiment2 extends Gadget<UserPreferences> {
>
> >> > �...@override
> >> > protected void init(UserPreferences preferences) {
> >> > Button simpleButton = new Button("SimpleGadget");
> >> > simpleButton.addClickHandler(
> >> > new ClickHandler() {
> >> > �...@override
> >> > public void onClick(ClickEvent
> >> > event) {
> >> > Window.alert("Hello World!");
> >> > }
> >> > }
> >> > );
> >> > RootPanel.get().add(simpleButton);
> >> > }
> >> > }
>
> >> > And here's the IGadgetExperiment2.gwt.xml file:
> >> > <?xml version="1.0" encoding="UTF-8"?>
> >> > <!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 1.7.0//
> >> > EN" "http://google-web-toolkit.googlecode.com/svn/tags/1.7.0/distro-
> >> > source/core/src/gwt-module.dtd">
> >> > <module rename-to='igadgetexperiment2'>
> >> > <!-- Inherit the core Web Toolkit stuff. -->
> >> > <inherits name='com.google.gwt.user.User'/>
>
> >> > <!-- Inherit the default GWT style sheet. You can change -->
> >> > <!-- the theme of your GWT application by uncommenting -->
> >> > <!-- any one of the following lines. -->
> >> > <inherits name='com.google.gwt.user.theme.standard.Standard'/>
> >> > <!-- <inherits name='com.google.gwt.user.theme.chrome.Chrome'/> -->
> >> > <!-- <inherits name='com.google.gwt.user.theme.dark.Dark'/> -->
>
> >> > <!-- Other module inherits -->
> >> > <inherits name="com.google.gwt.gadgets.Gadgets" />
>
> >> > <!-- Specify the app entry point class. -->
> >> > <entry-point
> >> > class='com.inetools.igadgetexperiment2.client.IGadgetExperiment2'/>
> >> > </module>
>
> >> > gwt-gadgets-noredist.jar
> >> > fromhttp://gwt-google-apis.googlecode.com/files/gwt-gadgets-1.0.3.tar.gz
> >> > has been added as the library as well as GWT 1.7 SDK (and AppEngine
> >> > 1.2.2 SDK).
>
> >> > Here's the web.xml:
> >> > <?xml version="1.0" encoding="UTF-8"?>
> >> > <!DOCTYPE web-app
> >> > PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
> >> > "http://java.sun.com/dtd/web-app_2_3.dtd";>
>
> >> > <web-app>
>
> >> > <!-- Servlets -->
>
> >> > <!-- Default page to serve -->
> >> > <welcome-file-list>
> >> > <welcome-file>IGadgetExperiment2.html</welcome-file>
> >> > </welcome-file-list>
>
> >> > </web-app>
>
> >> > Environment:
> >> > XP SP3
> >> > Google Plugin for Eclipse 3.5 1.1.0.v200907291526
> >> > eclipse.buildId=I20090611-1540
> >> > java.version=1.6.0_13
> >> > java.vendor=Sun Microsystems Inc.
> >> > BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
> >> > Framework arguments: -product org.eclipse.epp.package.jee.product
> >> > Command-line arguments: -os win32 -ws win32 -arch x86 -product
> >> > org.eclipse.epp.package.jee.product
>
> >> --
> >> Eric Z. Ayers - GWT Team - Atlanta, GA
> >> USAhttp://code.google.com/webtoolkit/
>
> --
> Eric Z. Ayers - GWT Team - Atlanta, GA USAhttp://code.google.com/webtoolkit/
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