Problems with GWT 2.5.1

[paolociccarese]

I've tried to run the annotator with the latest version of GWT and I am experiencing a problem in the initialization of the UI of the TextAnnotationFormsPanel. In particular a null pointer on the Image initialization:
g:Image ui:field='leftBottomSide' resource='{leftArrow}' styleName='{style.arrow}'

You can experience the issue by loading the annotator and trying to annotate with the tool 'Annotate' any fragment of text.