In trying to get MyFaces running with ICEfaces 2 (ICE-5868) I found that a couple of components are not operating properly due to the timing of state saving. The two currently known components with issues are:

OutputChart: after the chart is initially rendered, clicking on the image map points generates an NPE
Caused by: java.lang.NullPointerException
at com.icesoft.faces.component.outputchart.OutputChart.getGeneratedImageMapArea(OutputChart.java:414)
at com.icesoft.faces.component.outputchart.OutputChart.decode(OutputChart.java:359)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1204)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1198)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1198)
at javax.faces.component.UIForm.processDecodes(UIForm.java:114)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1198)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1198)
at javax.faces.component.UIViewRoot._processDecodesDefault(UIViewRoot.java:1320)
...

Progress Bar: the progress bar is not updated even though Push is operating properly.