HADOOP-15293. TestLogLevel fails on Java 9

Signed-off-by: Akira Ajisaka <aajisaka@apache.org>

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/log/TestLogLevel.java

@@ -358,7 +358,7 @@ public class TestLogLevel extends KerberosSecurityTestcase {
     } catch (SSLException e) {
       GenericTestUtils.assertExceptionContains("Error while authenticating "
           + "with endpoint", e);
-      GenericTestUtils.assertExceptionContains("Unrecognized SSL message", e
+      GenericTestUtils.assertExceptionContains("recognized SSL message", e
           .getCause());
     }
   }
@@ -379,7 +379,7 @@ public class TestLogLevel extends KerberosSecurityTestcase {
     } catch (SSLException e) {
       GenericTestUtils.assertExceptionContains("Error while authenticating "
           + "with endpoint", e);
-      GenericTestUtils.assertExceptionContains("Unrecognized SSL message", e
+      GenericTestUtils.assertExceptionContains("recognized SSL message", e
           .getCause());
     }
   }