UiBinder fails after upgrading to gwt 2.1.0

[pgraham]

Hi all,

After upgrading to gwt 2.1.0 I get the following exception when
starting up hosted mode:

onModuleLoad() threw an exception

Exception while loading module org.sitebrand.ui.gwt.shell.MainEntry.
See Development Mode for details.
java.lang.reflect.InvocationTargetException at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:396)
at
com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:
183)
at
com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:
510)
at
com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:
352)
at java.lang.Thread.run(Thread.java:619)

Caused by: java.lang.ExceptionInInitializerError
at org.sitebrand.ui.gwt.widgets.panel.TopPanel.(TopPanel.java:37)
at
org.sitebrand.ui.gwt.shell.MainEntry.initNorthPanel(MainEntry.java:76)
at org.sitebrand.ui.gwt.shell.MainEntry.onModuleLoad(MainEntry.java:
62) ... 9 more

Caused by: java.lang.RuntimeException: Deferred binding failed for
'org.sitebrand.ui.gwt.widgets.MainMenu$Binder' (did you forget to
inherit a required module?)
at com.google.gwt.dev.shell.GWTBridgeImpl.create(GWTBridgeImpl.java:
53)
at com.google.gwt.core.client.GWT.create(GWT.java:97)
at org.sitebrand.ui.gwt.widgets.MainMenu.(MainMenu.java:72) ... 12
more

Caused by: java.lang.AbstractMethodError:
org.apache.xerces.dom.ElementNSImpl.setUserData(Ljava/lang/
String;Ljava/lang/Object;Lorg/w3c/dom/UserDataHandler;)Ljava/lang/
Object;
at
com.google.gwt.uibinder.rebind.W3cDocumentBuilder.startElement(W3cDocumentBuilder.java:
130)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown
Source)
at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl
$NSContentDispatcher.scanRootElementHook(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl
$FragmentContentDispatcher.dispatch(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)
at
com.google.gwt.uibinder.rebind.W3cDomHelper.documentFor(W3cDomHelper.java:
64)
at
com.google.gwt.uibinder.rebind.UiBinderGenerator.getW3cDoc(UiBinderGenerator.java:
169)
at
com.google.gwt.uibinder.rebind.UiBinderGenerator.generateOnce(UiBinderGenerator.java:
139)
at
com.google.gwt.uibinder.rebind.UiBinderGenerator.generate(UiBinderGenerator.java:
119)
at
com.google.gwt.dev.javac.StandardGeneratorContext.runGenerator(StandardGeneratorContext.java:
427)
at
com.google.gwt.dev.cfg.RuleGenerateWith.realize(RuleGenerateWith.java:
39)
at com.google.gwt.dev.shell.StandardRebindOracle
$Rebinder.tryRebind(StandardRebindOracle.java:115)
at com.google.gwt.dev.shell.StandardRebindOracle
$Rebinder.rebind(StandardRebindOracle.java:58)
at
com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:
161)
at
com.google.gwt.dev.shell.ShellModuleSpaceHost.rebind(ShellModuleSpaceHost.java:
124)
at com.google.gwt.dev.shell.ModuleSpace.rebind(ModuleSpace.java:585)
at
com.google.gwt.dev.shell.ModuleSpace.rebindAndCreate(ModuleSpace.java:
455)
at com.google.gwt.dev.shell.GWTBridgeImpl.create(GWTBridgeImpl.java:
49) ... 14 more

Everything was working fine with GWT 2.0.4

Any help is appreciated,
Thanks

[Jeff Schwartz]

Is it possible to post both the uibinder's xml and java class files? It would help. Thanks.

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[pgraham]

MainMenu.ui.xml:

<ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
xmlns:g="urn:import:com.google.gwt.user.client.ui">

<ui:with field="css"
type="org.sitebrand.ui.gwt.resources.UiResources.MainMenuCss" />
<ui:with field="lbls"
type="org.sitebrand.ui.gwt.resources.MainMenuLbls" />
<ui:with field="debugIds"
type="org.sitebrand.gwt.constants.DebugConstants" />

<g:MenuBar stylePrimaryName="{css.primary}">
<g:MenuItem ui:field="campaigns"
debugId="{debugIds.menuitem_campaigns}" text="{lbls.campaigns}">
<g:MenuBar vertical="true">
<g:MenuItem ui:field="createCampaign"
text="{lbls.createCampaign}" />
<g:MenuItem ui:field="viewCampaigns"
text="{lbls.viewCampaigns}" />
<g:MenuItem ui:field="campaignPriority"
text="{lbls.campaignPriority}" />
<g:MenuItem ui:field="reports"
text="{lbls.reports}" />
</g:MenuBar>
</g:MenuItem>

<g:MenuItem ui:field="content"
debugId="{debugIds.menuitem_content}" text="{lbls.content}">
<g:MenuBar vertical="true">
<g:MenuItem
ui:field="createContent"
text="{lbls.createContent}" />
<g:MenuItem
ui:field="viewContent"
text="{lbls.viewContent}" />
<g:MenuItem
ui:field="integrate"
text="{lbls.integrate}" />
</g:MenuBar>
</g:MenuItem>

<g:MenuItem ui:field="segments"
debugId="{debugIds.menuitem_segments}" text="{lbls.segments}">
<g:MenuBar vertical="true">
<g:MenuItem
ui:field="createSegment"
text="{lbls.createSegment}" />
<g:MenuItem
ui:field="viewSegments"
text="{lbls.viewSegments}" />
</g:MenuBar>
</g:MenuItem>

<g:MenuItem ui:field="layout"
debugId="{debugIds.menuitem_layout}" text="{lbls.layout}">
<g:MenuBar vertical="true">
<g:MenuItem
ui:field="addTemplate"
text="{lbls.addTemplate}" />
<g:MenuItem
ui:field="viewTemplates"
text="{lbls.viewTemplates}" />
</g:MenuBar>
</g:MenuItem>

<g:MenuItem ui:field="account"
debugId="{debugIds.menuitem_account_mgmt}" text="{lbls.account}">
<g:MenuBar vertical="true">
<g:MenuItem
ui:field="myAccount"
text="{lbls.myAccount}" />
<g:MenuItem
ui:field="organizations"
text="{lbls.organizations}" />
<g:MenuItem
ui:field="sites"
text="{lbls.sites}" />
<g:MenuItem
ui:field="users"
text="{lbls.users}" />
<g:MenuItem
ui:field="globalSettings"
text="{lbls.globalSettings}" />
</g:MenuBar>
</g:MenuItem>

<g:MenuItem ui:field="help" debugId="{debugIds.menuitem_help}"
text="{lbls.help}">
<g:MenuBar vertical="true">
<g:MenuItem
ui:field="manual"
text="{lbls.manual}" />
<g:MenuItem
ui:field="support"
text="{lbls.support}" />
</g:MenuBar>
</g:MenuItem>
</g:MenuBar>

</ui:UiBinder>

MainMenu.java:

public class MainMenu extends Composite {

/*
*
=========================================================================
* UiBinder
*
=========================================================================
*/

interface Binder extends UiBinder<Widget, MainMenu> {}

private static Binder uiBinder = GWT.create(Binder.class);

static {
getCss().ensureInjected();
}

@UiFactory
public static MainMenuCss getCss() {
return UiResources.INST.mainMenuCss();
}

@UiFactory
public static MainMenuLbls getLbls() {
return MainMenuLbls.INST;
}

/*
*
=========================================================================
* Instance
*
=========================================================================
*/

// Top level menu items
@UiField
MenuItem campaigns, content, segments, layout, account, help;

// Campaigns menu items
@UiField
MenuItem createCampaign, viewCampaigns, campaignPriority, reports;

// Content menu items
@UiField
MenuItem createContent, viewContent, integrate;

// Segments menu items
@UiField
MenuItem createSegment, viewSegments;

// Layout menu items
@UiField
MenuItem addTemplate, viewTemplates;

// Account menu items
@UiField
MenuItem myAccount, organizations, sites, users, globalSettings;

// Help menu items
@UiField
MenuItem manual, support;

public MainMenu() {
initWidget(uiBinder.createAndBindUi(this));

UserServiceManager.getClientSession(new GotClientSession() {
@Override
public void got(ClientSession session) {
boolean canEditDomain = session.hasAtLeastPermission(
PermissionType.EDIT, SecurableComponent.GENERAL);

if (!canEditDomain) {
createCampaign.setVisible(false);
campaignPriority.setVisible(false);

createContent.setVisible(false);

segments.setSubMenu(new MenuBar());
segments.setCommand(viewSegments.getCommand());

layout.setSubMenu(new MenuBar());
layout.setCommand(viewTemplates.getCommand());
}

boolean singleItemAccountMenu =
!session.canAdministerAtLeastOneOrganization() &&
!session.canAdministerAtLeastOneSite() &&
!session.isSitebrandAdmin();
if (singleItemAccountMenu) {
account.setSubMenu(new MenuBar());
account.setCommand(myAccount.getCommand());
} else {
if (!
session.canAdministerAtLeastOneOrganization()) {
organizations.setVisible(false);
}

if (!session.canAdministerAtLeastOneSite()) {
sites.setVisible(false);
}

boolean showUsers =
session.canAdministerAtLeastOneOrganization()
||
session.canAdministerAtLeastOneSite();
if (!showUsers) {
users.setVisible(false);
}

if (!session.isSitebrandAdmin()) {
globalSettings.setVisible(false);
}
}
}
});

createCampaign.setCommand(new Command() {
@Override
public void execute() {
new CreateCampaignWindow().show();
}
});

viewCampaigns.setCommand(new Command() {
@Override
public void execute() {
MainTabPanel.get().addTab(new MarketingMainPanel(),
getLbls().campaigns());
}
});

campaignPriority.setCommand(new Command() {
@Override
public void execute() {
MainTabPanel.get().addTab(new
CampaignPriorityMainPanel(),
getLbls().campaignPriority());
}
});

reports.setCommand(new Command() {
@Override
public void execute() {
MainTabPanel.get().addTab(new ReportsMain(),
getLbls().reports());
}
});

createContent.setCommand(new Command() {
@Override
public void execute() {
new AddContentWindow().show();
}
});

viewContent.setCommand(new Command() {
@Override
public void execute() {
MainTabPanel.get().addTab(new ContentMainPanel(),
getLbls().content());
}
});

integrate.setCommand(new Command() {
@Override
public void execute() {
MainTabPanel.get().addTab(new IntegrationMainPanel(),
getLbls().integrate());
}
});

createSegment.setCommand(new Command() {
@Override
public void execute() {
new NewSegmentWindow().show();
}
});

viewSegments.setCommand(new Command() {
@Override
public void execute() {
MainTabPanel.get().addTab(new SegmentMainPanel(),
getLbls().segments());
}
});

addTemplate.setCommand(new Command() {
@Override
public void execute() {
new CreateTemplateWindow(null).show();
}
});

viewTemplates.setCommand(new Command() {
@Override
public void execute() {
MainTabPanel.get().addTab(new TemplatesMainPanel(),
getLbls().layout());
}
});

myAccount.setCommand(new Command() {
@Override
public void execute() {
MainTabPanel.get().addTab(new MyAccountPanel(),
getLbls().myAccount());
}
});

organizations.setCommand(new Command() {
@Override
public void execute() {
MainTabPanel mtp = MainTabPanel.get();
if (!mtp.setFocus(OrganizationsMainPanel.class)) {
mtp.addTab(new OrganizationsMainPanel(), getLbls()
.organizations());
}
}
});

sites.setCommand(new Command() {
@Override
public void execute() {
MainTabPanel mtp = MainTabPanel.get();
if (!mtp.setFocus(SitesMainPanel.class)) {
mtp.addTab(new SitesMainPanel(),
getLbls().sites());
}
}
});

users.setCommand(new Command() {
@Override
public void execute() {
MainTabPanel mtp = MainTabPanel.get();
if (!mtp.setFocus(UsersAndRolesMainPanel.class)) {
mtp.addTab(new UsersAndRolesMainPanel(), getLbls()
.users());
}
}
});

globalSettings.setCommand(new Command() {
@Override
public void execute() {
MainTabPanel mtp = MainTabPanel.get();
if (!mtp.setFocus(AdminMainPanel.class)) {
mtp.addTab(new AdminMainPanel(),
getLbls().globalSettings());
}
}
});

manual.setCommand(new Command() {
@Override
public void execute() {
Window.open(MANUAL_URL, "_blank", "");
}
});

support.setCommand(new Command() {
@Override
public void execute() {
Window.open(SUPPORT_URL, "_blank", "");
}
});

}
}

On Nov 2, 1:15 pm, Jeff Schwartz <jefftschwa...@gmail.com> wrote:
> Is it possible to post both the uibinder's xml and java class files? It
> would help. Thanks.
>

> > google-web-tool...@googlegroups.com<google-web-toolkit%2Bunsubs cr...@googlegroups.com>
> > .

[pgraham]

Update:

I have commented out all code in the two files listed above so that
they are as follows:

MainMenu.ui.xml:

<ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
xmlns:g="urn:import:com.google.gwt.user.client.ui">

</ui:UiBinder>

MainMenu.java:

public class MainMenu extends Composite {

interface Binder extends UiBinder<Widget, MainMenu> {}

private static Binder uiBinder = GWT.create(Binder.class);

public MainMenu() {
initWidget(uiBinder.createAndBindUi(this));
}
}

When I do this I get the same error so it is not related to the
content.

At this point I am thinking that there is a version conflict with
xerces. Does anyone know if Dev Mode relies on xerces to parse
*.ui.xml files and if so which version?

NOTE: I am using the gwt-maven-plugin to compile the app and it works
fine if I compile it and deploy it in Tomcat

Thanks,
Philip

>             @Override...
>
> read more »

[Richard Berger]

OK, this won't help much, but... I was having the same problem just
going through some basic tutorial using UiBinder and GWT 2.1. So, I
redid everything, writing down each step - and, of course, the problem
vanished.

So, there exists the possibility that 2.1 and UiBinder do actually
work together.

I can only offer the truly lame suggestion of restarting Eclipse to
clean up any old invocations of the dev server.

Good luck,
RB

> >             public void...
>
> read more »

[will0]

Same issue as pgraham on Ubuntu 10.04, eclipse 3.6.
This doesn't happen for eclipse 3.5 on the same machine. It also works
on Windows 7 ultimate 64bit, eclipse 3.6.

On Nov 4, 3:36 am, Richard Berger <richardlan...@gmail.com> wrote:
> OK, this won't help much, but... I was having the same problem just

> going through some basic tutorial using UiBinder andGWT2.1.  So, I

> redid everything, writing down each step - and, of course, the problem
> vanished.
>

> So, there exists the possibility that2.1and UiBinder do actually

> work together.
>
> I can only offer the truly lame suggestion of restarting Eclipse to
> clean up any old invocations of the dev server.
>
> Good luck,
> RB
>
> On Nov 3, 8:34 am, pgraham <philip.robert.gra...@gmail.com> wrote:
>
>
>
>
>
>
>
> > Update:
>
> > I have commented out all code in the two files listed above so that
> > they are as follows:
>
> > MainMenu.ui.xml:
>
> > <ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
> >     xmlns:g="urn:import:com.google.gwt.user.client.ui">
>
> > </ui:UiBinder>
>
> > MainMenu.java:
>
> > public class MainMenu extends Composite {
>
> >     interface Binder extends UiBinder<Widget, MainMenu> {}
>
> >     private static Binder uiBinder =GWT.create(Binder.class);
>
> >     public MainMenu() {
> >         initWidget(uiBinder.createAndBindUi(this));
> >     }
>
> > }
>
> > When I do this I get the same error so it is not related to the
> > content.
>
> > At this point I am thinking that there is a version conflict with

> >xerces.  Does anyone know if Dev Mode relies onxercesto parse

> > *.ui.xml files and if so which version?
>

> > NOTE:  I am using thegwt-maven-plugin to compile the app and it works

> ...
>
> read more »

[pgraham]

Right, I suppose I should mention that I am running Kubuntu 10.04 64
bit, eclipse 3.6
with the lastest GPE.

> > > >                  ...
>
> read more »

[hbf]

Same problem on MacOS 10.6.4/Eclipse 3.6 with latest Google Plugin for
Eclipse.

> ...
>
> read more »

[pgraham]

Has anyone figured this out or created an issue?

If not, when I get some time I'll isolate the bug in a minimal project
and create an issue but that might not happen for a few weeks.

On Nov 9, 5:15 am, hbf <kaspar.fisc...@dreizak.com> wrote:
> Same problem on MacOS 10.6.4/Eclipse 3.6 with latest Google Plugin for
> Eclipse.
>
> On Nov 5, 8:05 pm, pgraham <philip.robert.gra...@gmail.com> wrote:
>
>
>
>
>
>
>
> > Right, I suppose I should mention that I am running Kubuntu 10.04 64
> > bit, eclipse 3.6
> > with the lastest GPE.
>
> > On Nov 4, 2:11 pm, will0 <willtemper...@gmail.com> wrote:
>
> > > Same issue as pgraham on Ubuntu 10.04, eclipse 3.6.
> > > This doesn't happen for eclipse 3.5 on the same machine. It also works
> > > on Windows 7 ultimate 64bit, eclipse 3.6.
>
> > > On Nov 4, 3:36 am, Richard Berger <richardlan...@gmail.com> wrote:
>
> > > > OK, this won't help much, but... I was having the same problem just

> > > > going through some basic tutorial usingUiBinderandGWT2.1.  So, I

> > > > redid everything, writing down each step - and, of course, the problem
> > > > vanished.
>

> > > > So, there exists the possibility that2.1andUiBinderdo actually

> > > > work together.
>
> > > > I can only offer the truly lame suggestion of restarting Eclipse to
> > > > clean up any old invocations of the dev server.
>
> > > > Good luck,
> > > > RB
>
> > > > On Nov 3, 8:34 am, pgraham <philip.robert.gra...@gmail.com> wrote:
>
> > > > > Update:
>
> > > > > I have commented out all code in the two files listed above so that
> > > > > they are as follows:
>
> > > > > MainMenu.ui.xml:
>

> > > > > <ui:UiBinderxmlns:ui="urn:ui:com.google.gwt.uibinder"

> > > > >     xmlns:g="urn:import:com.google.gwt.user.client.ui">
>
> > > > > </ui:UiBinder>
>
> > > > > MainMenu.java:
>
> > > > > public class MainMenu extends Composite {
>
> > > > >     interface Binder extendsUiBinder<Widget, MainMenu> {}
>
> > > > >     private static BinderuiBinder=GWT.create(Binder.class);
>
> > > > >     public MainMenu() {
> > > > >         initWidget(uiBinder.createAndBindUi(this));
> > > > >     }
>
> > > > > }
>
> > > > > When I do this I get the same error so it is not related to the
> > > > > content.
>
> > > > > At this point I am thinking that there is a version conflict with
> > > > >xerces.  Does anyone know if Dev Mode relies onxercesto parse
> > > > > *.ui.xml files and if so which version?
>
> > > > > NOTE:  I am using thegwt-maven-plugin to compile the app and it works
> > > > > fine if I compile it and deploy it in Tomcat
>
> > > > > Thanks,
> > > > > Philip
>
> > > > > On Nov 2, 1:54 pm, pgraham <philip.robert.gra...@gmail.com> wrote:
>
> > > > > > MainMenu.ui.xml:
>

> > > > > > <ui:UiBinderxmlns:ui="urn:ui:com.google.gwt.uibinder"

> > > > > >  ...
>
> read more »

[Mency Woo]

I have just spent the last few hours struggling on a similar problem
of

java.lang.AbstractMethodError:
org.apache.xerces.dom.ElementNSImpl.setUserData(Ljava/lang/
String;Ljava/lang/Object;Lorg/w3c/dom/UserDataHandler;)Ljava/lang/
Object;
at
com.google.gwt.uibinder.rebind.W3cDocumentBuilder.startElement(W3cDocumentB
uilder.java:
130)

turns out that it has indeed something to do with xerces. It has
to be version 2.9.1

Hope that helps,

On Nov 9, 2:15 am, hbf <kaspar.fisc...@dreizak.com> wrote:
> Same problem on MacOS 10.6.4/Eclipse 3.6 with latest Google Plugin for
> Eclipse.
>
> On Nov 5, 8:05 pm, pgraham <philip.robert.gra...@gmail.com> wrote:
>
>
>
>
>
>
>
> > Right, I suppose I should mention that I am running Kubuntu 10.04 64
> > bit, eclipse 3.6
> > with the lastest GPE.
>
> > On Nov 4, 2:11 pm, will0 <willtemper...@gmail.com> wrote:
>
> > > Same issue as pgraham on Ubuntu 10.04, eclipse 3.6.
> > > This doesn't happen for eclipse 3.5 on the same machine. It also works
> > > on Windows 7 ultimate 64bit, eclipse 3.6.
>
> > > On Nov 4, 3:36 am, Richard Berger <richardlan...@gmail.com> wrote:
>
> > > > OK, this won't help much, but... I was having the same problem just

> > > > going through some basic tutorial usingUiBinderandGWT2.1.  So, I

> > > > redid everything, writing down each step - and, of course, the problem
> > > > vanished.
>

> > > > So, there exists the possibility that2.1andUiBinderdo actually

> > > > work together.
>
> > > > I can only offer the truly lame suggestion of restarting Eclipse to
> > > > clean up any old invocations of the dev server.
>
> > > > Good luck,
> > > > RB
>
> > > > On Nov 3, 8:34 am, pgraham <philip.robert.gra...@gmail.com> wrote:
>
> > > > > Update:
>
> > > > > I have commented out all code in the two files listed above so that
> > > > > they are as follows:
>
> > > > > MainMenu.ui.xml:
>

> > > > > <ui:UiBinderxmlns:ui="urn:ui:com.google.gwt.uibinder"

> > > > >     xmlns:g="urn:import:com.google.gwt.user.client.ui">
>
> > > > > </ui:UiBinder>
>
> > > > > MainMenu.java:
>
> > > > > public class MainMenu extends Composite {
>

> > > > >     interface Binder extendsUiBinder<Widget, MainMenu> {}
>
> > > > >     private static BinderuiBinder=GWT.create(Binder.class);
>

> > > > >     public MainMenu() {
> > > > >         initWidget(uiBinder.createAndBindUi(this));
> > > > >     }
>
> > > > > }
>
> > > > > When I do this I get the same error so it is not related to the
> > > > > content.
>
> > > > > At this point I am thinking that there is a version conflict with
> > > > >xerces.  Does anyone know if Dev Mode relies onxercesto parse
> > > > > *.ui.xml files and if so which version?
>
> > > > > NOTE:  I am using thegwt-maven-plugin to compile the app and it works
> > > > > fine if I compile it and deploy it in Tomcat
>
> > > > > Thanks,
> > > > > Philip
>
> > > > > On Nov 2, 1:54 pm, pgraham <philip.robert.gra...@gmail.com> wrote:
>
> > > > > > MainMenu.ui.xml:
>

> > > > > > <ui:UiBinderxmlns:ui="urn:ui:com.google.gwt.uibinder"

> > > > > >     interface Binder extendsUiBinder<Widget, MainMenu> {}
>
> > > > > >     private static BinderuiBinder=GWT.create(Binder.class);
>

> ...
>
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[Mency Woo]

I had a similar problem with compile error

java.lang.AbstractMethodError:
org.apache.xerces.dom.ElementNSImpl.setUserData(Ljava/lang/
String;Ljava/lang/Object;Lorg/w3c/dom/UserDataHandler;)Ljava/lang/
Object;
at
com.google.gwt.uibinder.rebind.W3cDocumentBuilder.startElement(W3cDocumentB
uilder.java:
130)

which was fixed by upgrading xerces/xercesImpl.jar to 2.9.1 (and
making sure no other versions of xerces are in the classpath). (ref
http://mojo.codehaus.org/gwt-maven-plugin/dependencies.html )

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[Herwig Henseler]

Hi,

I'm also stuck here and can't migrate to GWT 2.1.

I replaced my old xercesImpl-2.6.2 with version 2.9.1 but to no avail.

I see two incarnations of xercesImpl in my project: One directly
(which I replaced) and one inside GWT (gwt-dev.jar, version unknown).
I guess the version inside GWT is too old. Any ideas how to proceed?

Thanks in advance,
Herwig

> ...
>
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[squix]

I can confirm that upgrade to xercesImpl.jar 2.9.1 solved the problem

Thank you for this solutions, you saved me hours of debugging

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