【fix sonar】LockTest文件

jero-boot/jero-boot-starter/jero-boot-starter-lock/src/test/java/org/jero/boot/starter/lock/test/LockTest.java

@@ -11,6 +11,8 @@ import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
 import java.util.stream.IntStream;
 
+import static junit.framework.TestCase.assertNull;
+
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = LockTestApplication.class)
 public class LockTest {
@@ -30,7 +32,7 @@ public class LockTest {
                 e.printStackTrace();
             }
         }));
-        executorService.awaitTermination(30, TimeUnit.SECONDS);
+        assertNull(executorService.awaitTermination(30, TimeUnit.SECONDS));
     }
 
     /**
@@ -46,7 +48,7 @@ public class LockTest {
                 e.printStackTrace();
             }
         }));
-        executorService.awaitTermination(30, TimeUnit.SECONDS);
+        assertNull(executorService.awaitTermination(30, TimeUnit.SECONDS));
     }
 
     /**
@@ -62,6 +64,6 @@ public class LockTest {
                 e.printStackTrace();
             }
         }));
-        executorService.awaitTermination(30, TimeUnit.SECONDS);
+        assertNull(executorService.awaitTermination(30, TimeUnit.SECONDS));
     }
 }