HADOOP-18093. Better exception handling for testFileStatusOnMountLink…

[xinglin]

Signed-off-by: Ayush Saxena [email protected]
(cherry picked from commit 0d17b62)

Description of PR

How was this patch tested?

mvn test -Dtest=TestViewFsLocalFs

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 40s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 1 new or modified test files.
			_ branch-3.2 Compile Tests _
+1 💚	mvninstall	26m 48s		branch-3.2 passed
+1 💚	compile	15m 6s		branch-3.2 passed
+1 💚	checkstyle	0m 51s		branch-3.2 passed
+1 💚	mvnsite	1m 21s		branch-3.2 passed
+1 💚	javadoc	1m 14s		branch-3.2 passed
+1 💚	spotbugs	2m 7s		branch-3.2 passed
+1 💚	shadedclient	14m 52s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 50s		the patch passed
+1 💚	compile	14m 22s		the patch passed
+1 💚	javac	14m 22s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 49s		hadoop-common-project/hadoop-common: The patch generated 0 new + 84 unchanged - 1 fixed = 84 total (was 85)
+1 💚	mvnsite	1m 21s		the patch passed
+1 💚	javadoc	1m 11s		the patch passed
+1 💚	spotbugs	2m 19s		the patch passed
+1 💚	shadedclient	15m 6s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	15m 58s	/patch-unit-hadoop-common-project_hadoop-common.txt	hadoop-common in the patch passed.
+1 💚	asflicense	0m 51s		The patch does not generate ASF License warnings.
		115m 34s

Reason	Tests
Failed junit tests	hadoop.fs.shell.TestCopyToLocal

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3931/1/artifact/out/Dockerfile
GITHUB PR	#3931
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell
uname	Linux 1b28d37f4417 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	branch-3.2 / c10fbaf
Default Java	Private Build-1.8.0_312-8u312-b07-0ubuntu1~18.04-b07
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3931/1/testReport/
Max. process+thread count	1276 (vs. ulimit of 5500)
modules	C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3931/1/console
versions	git=2.17.1 maven=3.6.0 spotbugs=4.2.2
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