code: package io.ray.test;
  
  import io.ray.api.ActorHandle;
  import io.ray.api.Ray;
  import org.testng.Assert;
  import org.testng.annotations.AfterClass;
  import org.testng.annotations.BeforeClass;
  import org.testng.annotations.Test;
  
  @Test
  public class SetupJavaWorkerTest extends BaseTest {
  
    private static final String CODE_SEARCH_PATH = System.getProperty("java.class.path");;
  
    public static class Counter {
  
      private int value;
  
      public Counter(int initValue) {
        this.value = initValue;
      }
  
      public int getValue() {
        return value;
      }
    }
  
    @BeforeClass
    public void setup() {
      // mock a fake code search path contains whitespace
      String newCodeSearchPathStr = CODE_SEARCH_PATH + ":fakepathStart fakePathEnd";
      System.setProperty("java.class.path", newCodeSearchPathStr);
    }
  
    @AfterClass
    public void clean() {
      // restore class path
      System.setProperty("java.class.path", CODE_SEARCH_PATH);
    }
    /**
     * raylet will call setup_worker.py with arguments to start java workers after Ray 2.0.0, and
     * setup_worker.py can not start java workers correctly when argumens contian whitespace. This
     * test case is used to test whether the bug is fixed.
     */
    public void testCreateActorFail() {
      ActorHandle<ActorTest.Counter> actor = Ray.actor(ActorTest.Counter::new, 1).remote();
      // throw RayTimeoutException exception if actor is not started correctly by raylet
      Integer value = actor.task(ActorTest.Counter::getValue).remote().get(30 * 1000);
      Assert.assertEquals(Integer.valueOf(1), value);
    }
  }
  