WebDynpro element DateNavigator onDayClick Error

Hi,

we are using web dynpro for java.

After we upgrade SAP EP 7.0 SP18 to SP22 we get an error with the web dynpro element DateNavigator. If we select a day in the calendar we get the following error:

The initial exception that caused the request to fail, was:

java.lang.IllegalArgumentException

at java.sql.Date.valueOf(Date.java:138)

at com.sap.tc.webdynpro.clientserver.uielib.standard.uradapter.DateNavigatorAdapter.onDATENAVIGATORDAYCLICK(DateNavigatorAdapter.java:447)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

Thanks for helping,

Markus