jdk 5: Compilation error when using UIExtendedDataTable:

Error:

cannot access org.richfaces.cdk.annotations.Attribute

    [javac] file org\richfaces\cdk\annotations\Attribute.class not found

    [javac]         UIExtendedDataTable dataTable = (UIExtendedDataTable) event.getSource();

code:

public void selectionListener(AjaxBehaviorEvent event) {

        UIExtendedDataTable dataTable = (UIExtendedDataTable) event.getSource();

        Object originalKey = dataTable.getRowKey();

...}

so Added richfaces annotations.jar to classpath....then got bad version number.

because all richfaces 4 components' version is 49 and annotations classes' version is 50.

Anybody has the same issue or how can we report to the richfaces developers....??