[GitHub] [flink] wanglijie95 commented on a change in pull request #12181: [FLINK-17645][runtime] Fix SafetyNetCloseableRegistry constructor bug.

[GitBox <gi...@apache.org>]

wanglijie95 commented on a change in pull request #12181:
URL: https://github.com/apache/flink/pull/12181#discussion_r426375851



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File path: flink-core/src/test/java/org/apache/flink/core/fs/SafetyNetCloseableRegistryTest.java
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@@ -27,18 +27,31 @@
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.TemporaryFolder;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
 
 import java.io.Closeable;
 import java.io.IOException;
 import java.util.concurrent.atomic.AtomicInteger;
 
+import static org.powermock.api.mockito.PowerMockito.doNothing;
+import static org.powermock.api.mockito.PowerMockito.doThrow;
+import static org.powermock.api.mockito.PowerMockito.whenNew;
+
 /**
  * Tests for the {@link SafetyNetCloseableRegistry}.
  */
+@RunWith(PowerMockRunner.class)

Review comment:
       Thanks for reivew, @zhuzhurk . I will considier your comment. But `CloseableReaperThread ` is final class and can't be inherited, I will change this for override.




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