ScrollableDataTable issue

[icai]

Hi,

I tried to use scrollable dataTable, but I get following exception:

java.lang.ClassCastException
 at org.richfaces.renderkit.html.ScrollableDataTableBaseRenderer.getColumnSorting(ScrollableDataTableBaseRenderer.java:863)
 at org.richfaces.renderkit.html.ScrollableDataTableBaseRenderer.access$200(ScrollableDataTableBaseRenderer.java:42)
 at org.richfaces.renderkit.html.ScrollableDataTableBaseRenderer$3.renderContent(ScrollableDataTableBaseRenderer.java:131)
 at org.richfaces.renderkit.html.ExtendedColumnVisitor.visit(ExtendedColumnVisitor.java:31)
 at org.richfaces.renderkit.html.ColumnWalker.iterateOverColumns(ColumnWalker.java:42)
 at org.richfaces.renderkit.html.ScrollableDataTableBaseRenderer.renderHeaders(ScrollableDataTableBaseRenderer.java:490)
 at org.richfaces.renderkit.html.ScrollableDataTableRenderer.doEncodeEnd(ScrollableDataTableRenderer.java:304)
 at org.richfaces.renderkit.html.ScrollableDataTableRenderer.doEncodeEnd(ScrollableDataTableRenderer.java:553)
 at org.ajax4jsf.renderkit.RendererBase.encodeEnd(RendererBase.java:135)
 at org.richfaces.renderkit.html.ScrollableDataTableBaseRenderer.encodeEnd(ScrollableDataTableBaseRenderer.java:746)
 at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:740)
 at org.richfaces.component.UIScrollableDataTable.encodeEnd(UIScrollableDataTable.java:335)
 at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:286)
 at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)
 at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:284)
 at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)
 at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:284)
 at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)
 at org.ajax4jsf.renderkit.html.AjaxOutputPanelRenderer.encodeChildren(AjaxOutputPanelRenderer.java:79)
 at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:721)
 at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282)

My working environment is :
tomahawk-1.1.6.jar
jsf1.1_02.jar
richfaces-3.1.2.GA

None of new components like calendar will work in my app.
Please advise, as to where could be the problem.

Thanks in advance!