HADOOP-17039. Change scope of InternalDirOfViewFs and InodeTree to make ViewFileSystem extendable outside common package

[abhishekdas99]

The commit changes the scope to public for following classes:

• InodeTree
• InternalDirOfViewFs
• NflyFSystem
• ChRootedFileSystem

This change makes sure the ViewFileSystem class can be extended outside of hadoop-common package and that class can initialize the mount table (fsState) in its own way

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	1m 22s	Docker mode activated.
		_ Prechecks _
+1 💚	dupname	0m 0s	No case conflicting files found.
+1 💚	@author	0m 0s	The patch does not contain any @author tags.
-1 ❌	test4tests	0m 0s	The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
		_ trunk Compile Tests _
+1 💚	mvninstall	22m 14s	trunk passed
+1 💚	compile	18m 20s	trunk passed
+1 💚	checkstyle	0m 47s	trunk passed
+1 💚	mvnsite	1m 22s	trunk passed
+1 💚	shadedclient	17m 46s	branch has no errors when building and testing our client artifacts.
+1 💚	javadoc	0m 54s	trunk passed
+0 🆗	spotbugs	2m 12s	Used deprecated FindBugs config; considering switching to SpotBugs.
+1 💚	findbugs	2m 9s	trunk passed
		_ Patch Compile Tests _
+1 💚	mvninstall	0m 49s	the patch passed
+1 💚	compile	17m 20s	the patch passed
+1 💚	javac	17m 20s	the patch passed
-0 ⚠️	checkstyle	0m 47s	hadoop-common-project/hadoop-common: The patch generated 17 new + 68 unchanged - 13 fixed = 85 total (was 81)
+1 💚	mvnsite	1m 20s	the patch passed
-1 ❌	whitespace	0m 0s	The patch has 2 line(s) that end in whitespace. Use git apply --whitespace=fix <<patch_file>>. Refer https://git-scm.com/docs/git-apply
+1 💚	shadedclient	15m 25s	patch has no errors when building and testing our client artifacts.
+1 💚	javadoc	0m 54s	the patch passed
+1 💚	findbugs	2m 15s	the patch passed
		_ Other Tests _
+1 💚	unit	9m 31s	hadoop-common in the patch passed.
+1 💚	asflicense	0m 45s	The patch does not generate ASF License warnings.
		115m 6s

Subsystem	Report/Notes
Docker	ClientAPI=1.40 ServerAPI=1.40 base: https://builds.apache.org/job/hadoop-multibranch/job/PR-2017/1/artifact/out/Dockerfile
GITHUB PR	#2017
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle
uname	Linux a0f391f55ab2 4.15.0-74-generic #84-Ubuntu SMP Thu Dec 19 08:06:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	personality/hadoop.sh
git revision	trunk / d60496e
Default Java	Private Build-1.8.0_252-8u252-b09-1~18.04-b09
checkstyle	https://builds.apache.org/job/hadoop-multibranch/job/PR-2017/1/artifact/out/diff-checkstyle-hadoop-common-project_hadoop-common.txt
whitespace	https://builds.apache.org/job/hadoop-multibranch/job/PR-2017/1/artifact/out/whitespace-eol.txt
Test Results	https://builds.apache.org/job/hadoop-multibranch/job/PR-2017/1/testReport/
Max. process+thread count	1699 (vs. ulimit of 5500)
modules	C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common
Console output	https://builds.apache.org/job/hadoop-multibranch/job/PR-2017/1/console
versions	git=2.17.1 maven=3.6.0 findbugs=3.1.0-RC1
Powered by	Apache Yetus 0.12.0 https://yetus.apache.org

This message was automatically generated.