Compiling widgetset fails on VaadinDOMImplSafari

Up to now I always compiled the widget set with Maven, and that worked wonderfully. However, when I tried to re-compile the widgetset today, after like 6 months of not needing to, I suddenly got the following errors:
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[INFO]
[gwt:compile {execution: default}]

[INFO]
auto discovered modules [com.datadobi.n2n.gwt.WidgetSet]

[INFO]
Compiling module com.datadobi.n2n.gwt.WidgetSet
[INFO]
Validating newly compiled units
[INFO]
[ERROR]
Errors in ‘jar:file:/home/kim/.m2/repository/com/vaadin/vaadin/6.8.13/vaadin-6.8.13.jar!/com/google/gwt/dom/client/VaadinDOMImplIE9.java’
[INFO]
[ERROR]
Line 23: DOMImplIE9 cannot be resolved to a type
[INFO]
[ERROR]
Line 26: The method getAbsoluteLeft(Element) of type VaadinDOMImplIE9 must override or implement a supertype method
[INFO]
[ERROR]
Line 27: DOMImplIE9 cannot be resolved to a type
[INFO]
[ERROR]
Line 31: The method getAbsoluteTop(Element) of type VaadinDOMImplIE9 must override or implement a supertype method
[INFO]
[ERROR]
Line 32: DOMImplIE9 cannot be resolved to a type
[INFO]
[ERROR]
Line 36: The method touchGetPageX(Touch) of type VaadinDOMImplIE9 must override or implement a supertype method
[INFO]
[ERROR]
Line 37: DOMImplIE9 cannot be resolved to a type
[INFO]
[ERROR]
Line 41: The method touchGetPageY(Touch) of type VaadinDOMImplIE9 must override or implement a supertype method
[INFO]
[ERROR]
Line 42: DOMImplIE9 cannot be resolved to a type
[INFO]
[ERROR]
Line 46: The method touchGetClientX(Touch) of type VaadinDOMImplIE9 must override or implement a supertype method
[INFO]
[ERROR]
Line 47: DOMImplIE9 cannot be resolved to a type
[INFO]
[ERROR]
Line 51: The method touchGetClientY(Touch) of type VaadinDOMImplIE9 must override or implement a supertype method
[INFO]
[ERROR]
Line 52: DOMImplIE9 cannot be resolved to a type
[INFO]
[ERROR]
Line 56: The method touchGetScreenX(Touch) of type VaadinDOMImplIE9 must override or implement a supertype method
[INFO]
[ERROR]
Line 57: DOMImplIE9 cannot be resolved to a type
[INFO]
[ERROR]
Line 61: The method touchGetScreenY(Touch) of type VaadinDOMImplIE9 must override or implement a supertype method
[INFO]
[ERROR]
Line 62: DOMImplIE9 cannot be resolved to a type
[INFO]
[ERROR]
Errors in ‘jar:file:/home/kim/.m2/repository/com/vaadin/vaadin/6.8.13/vaadin-6.8.13.jar!/com/google/gwt/dom/client/VaadinDOMImplSafari.java’
[INFO]
[ERROR]
Line 24: DOMImplWebkit cannot be resolved to a type
[INFO]
[ERROR]
Line 26: The method getAbsoluteLeft(Element) of type VaadinDOMImplSafari must override or implement a supertype method
[INFO]
[ERROR]
Line 29: DOMImplWebkit cannot be resolved to a type
[INFO]
[ERROR]
Line 33: The method getAbsoluteTop(Element) of type VaadinDOMImplSafari must override or implement a supertype method
[INFO]
[ERROR]
Line 36: DOMImplWebkit cannot be resolved to a type
[INFO]
[ERROR]
Line 40: The method touchGetPageX(Touch) of type VaadinDOMImplSafari must override or implement a supertype method
[INFO]
[ERROR]
Line 41: DOMImplWebkit cannot be resolved to a type
[INFO]
[ERROR]
Line 45: The method touchGetPageY(Touch) of type VaadinDOMImplSafari must override or implement a supertype method
[INFO]
[ERROR]
Line 46: DOMImplWebkit cannot be resolved to a type
[INFO]
[ERROR]
Line 50: The method touchGetClientX(Touch) of type VaadinDOMImplSafari must override or implement a supertype method
[INFO]
[ERROR]
Line 51: DOMImplWebkit cannot be resolved to a type
[INFO]
[ERROR]
Line 55: The method touchGetClientY(Touch) of type VaadinDOMImplSafari must override or implement a supertype method
[INFO]
[ERROR]
Line 56: DOMImplWebkit cannot be resolved to a type
[INFO]
[ERROR]
Line 60: The method touchGetScreenX(Touch) of type VaadinDOMImplSafari must override or implement a supertype method
[INFO]
[ERROR]
Line 61: DOMImplWebkit cannot be resolved to a type
[INFO]
[ERROR]
Line 65: The method touchGetScreenY(Touch) of type VaadinDOMImplSafari must override or implement a supertype method
[INFO]
[ERROR]
Line 66: DOMImplWebkit cannot be resolved to a type
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I’m using gwt-dev 2.3.0 as indicated in the release notes of vaading 6.8.13 (I’m compiling the widgetset for vaadin 6.8.13).
Any idea what migth be wrong?

Regards,
Kim Marivoet

Ok, problem solved: using version 2.3.0 of the gwt-maven-plugin solved everything.