fix test-module checkstyle by JackyYangPassion · Pull Request #1842

fix test-module checkstyle by JackyYangPassion · Pull Request #1842 · apache/hugegraph

ci error:

Error:  Tests run: 727, Failures: 1, Errors: 0, Skipped: 81, Time elapsed: 229.553 s <<< FAILURE! - in com.baidu.hugegraph.core.CoreTestSuite
Error:  testGremlinJobAndRestore(com.baidu.hugegraph.core.TaskCoreTest)  Time elapsed: 1.215 s  <<< FAILURE!
java.lang.AssertionError: expected:<CANCELLING> but was:<FAILED>
	at com.baidu.hugegraph.core.TaskCoreTest.testGremlinJobAndRestore(TaskCoreTest.java:629)