[Streaming] Test build fixed (#10617)

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/master/JobMaster.java

@@ -67,7 +67,8 @@ public class JobMaster {
     runtimeContext = new JobMasterRuntimeContext(streamingConfig);
 
     // load checkpoint if is recover
-    if (Ray.getRuntimeContext().wasCurrentActorRestarted()) {
+    if (!Ray.getRuntimeContext().isSingleProcess() && Ray.getRuntimeContext()
+        .wasCurrentActorRestarted()) {
       loadMasterCheckpoint();
     }
 

streaming/java/streaming-runtime/src/test/java/io/ray/streaming/runtime/master/JobMasterTest.java

@@ -1,10 +1,25 @@
 package io.ray.streaming.runtime.master;
 
+import io.ray.api.Ray;
+import io.ray.streaming.runtime.BaseUnitTest;
 import java.util.HashMap;
 import org.testng.Assert;
+import org.testng.annotations.AfterMethod;
+import org.testng.annotations.BeforeMethod;
 import org.testng.annotations.Test;
 
-public class JobMasterTest {
+public class JobMasterTest extends BaseUnitTest {
+
+  @BeforeMethod
+  public void init() {
+    // ray init
+    Ray.init();
+  }
+
+  @AfterMethod
+  public void tearDown() {
+    Ray.shutdown();
+  }
 
   @Test
   public void testCreation() {