>> RootPanel.get("stockList").add(mainPanel);
// From the javadoc
public static RootPanel
<http://google-web-toolkit.googlecode.com/svn/javadoc/latest/com/google/gwt/user/client/ui/RootPanel.html>
*get*(java.lang.String id)
Gets the root panel associated with a given browser element. For this to
work, the HTML document into which the application is loaded must have
specified an element with the given id.
*Parameters:*id - the id of the element to be wrapped with a root panel (
null specifies the default instance, which wraps the <body> element)*
Returns:**the root panel, or null if no such element was found*
Looks like your host html is missing an element with id "stockList", so
either add it to your host page or Use the following line, without the id
param,
RootPanel.get().add(mainPanel);
Thanks,
-sowdri-
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