Alternative.java

@Test
@RunWith(Arquillian.class)
public void TestSequenceOfCalls() {

  @WarpTest
  class Test {
     
     @FindBy("xyz") Calendar calendar;

     @Transfer String foo;

     @Client(filter=JSFRequest.class)
     void openPage() {
         driver.open(xyz);
     }

     @Server @BeforePhase(PROCESS_DECODES)
     void test() { foo = "bar"; }
     
     @Client(filter=JSFRequest.class)
     void selectDate() {
         assertEquals("bar", foo);

         calendar.setDate(new Date());
     }

     @Server @BeforePhase(PROCESS_DECODES)
     void test() {}
  }
} 

Test.java

@Test
@RunWith(Arquillian.class)
public void TestSequenceOfCalls() {

  @WarpTest
  class Test {
     
     @FindBy("xyz") Calendar calendar;

     @Client
     void openPage() {
         driver.open(xyz);
     }

     @Server(filter=JSFRequest.class)
     class VerifyInitialRequest() {
         @BeforePhase(PROCESS_DECODES)
         void test() {}

         String getFoo();
     }
     
     @Client
     void selectDate(VerifyInitialRequest request) {
         String foo = request.getFoo();

         calendar.setDate(new Date());
     }

     @Server(filter=JSFRequest.class)
     class VerifyAjaxRequest() {
         @BeforePhase(PROCESS_DECODES)
         void test() {}
     }
  }
}