### Question:
DataHandler extends AbstractXulEventHandler { public void onCancel() { close(); } DataHandler(); void loadConnectionData(); void loadAccessData(); void editOptions( int index ); void clearOptionsData(); void getOptionHelp(); void setDeckChildIndex(); void onPoolingCheck(); void onClusterCheck(); Object getData(); void setData( Object data ); void pushCache(); void popCache(); void onCancel(); void onOK(); void testDatabaseConnection(); void restoreDefaults(); void poolingRowChange( int idx ); void disablePortIfInstancePopulated(); void handleUseSecurityCheckbox(); static final SortedMap<String, DatabaseInterface> connectionMap; static final Map<String, String> connectionNametoID; }### Answer:
@Test public void testOnCancel() throws Exception { }