HADOOP-17292. Using lz4-java in Lz4Codec

[sunchao]

Backporting #2350 to branch-3.3

[sunchao]

The purpose for this PR is to go through all tests (there're some conflicts during backporting). If everything looks good I'll cherry-pick it directly to branch-3.3.

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	24m 38s	Docker mode activated.
		_ Prechecks _
+1 💚	dupname	0m 1s	No case conflicting files found.
+1 💚	@author	0m 0s	The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s	The patch appears to include 6 new or modified test files.
		_ branch-3.3 Compile Tests _
+0 🆗	mvndep	4m 1s	Maven dependency ordering for branch
+1 💚	mvninstall	28m 54s	branch-3.3 passed
+1 💚	compile	16m 4s	branch-3.3 passed
+1 💚	checkstyle	2m 44s	branch-3.3 passed
+1 💚	mvnsite	3m 16s	branch-3.3 passed
+1 💚	shadedclient	17m 3s	branch has no errors when building and testing our client artifacts.
+1 💚	javadoc	2m 34s	branch-3.3 passed
+0 🆗	spotbugs	0m 57s	Used deprecated FindBugs config; considering switching to SpotBugs.
+0 🆗	findbugs	0m 39s	branch/hadoop-project no findbugs output file (findbugsXml.xml)
		_ Patch Compile Tests _
+0 🆗	mvndep	0m 34s	Maven dependency ordering for patch
+1 💚	mvninstall	1m 40s	the patch passed
+1 💚	compile	15m 40s	the patch passed
+1 💚	cc	15m 40s	the patch passed
+1 💚	golang	15m 40s	the patch passed
-1 ❌	javac	15m 40s	root generated 1 new + 1872 unchanged - 0 fixed = 1873 total (was 1872)
-0 ⚠️	checkstyle	2m 49s	root: The patch generated 2 new + 132 unchanged - 1 fixed = 134 total (was 133)
+1 💚	mvnsite	3m 12s	the patch passed
+1 💚	shellcheck	0m 0s	There were no new shellcheck issues.
+1 💚	shelldocs	0m 44s	There were no new shelldocs issues.
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	xml	0m 4s	The patch has no ill-formed XML file.
+1 💚	shadedclient	15m 51s	patch has no errors when building and testing our client artifacts.
+1 💚	javadoc	2m 41s	the patch passed
+0 🆗	findbugs	0m 43s	hadoop-project has no data from findbugs
		_ Other Tests _
+1 💚	unit	0m 42s	hadoop-project in the patch passed.
-1 ❌	unit	11m 58s	hadoop-common in the patch passed.
+1 💚	unit	10m 4s	hadoop-mapreduce-client-nativetask in the patch passed.
-1 ❌	asflicense	1m 6s	The patch generated 2 ASF License warnings.
		181m 22s

Reason	Tests
Failed junit tests	hadoop.io.compress.TestCompressorDecompressor

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2576/1/artifact/out/Dockerfile
GITHUB PR	#2576
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient xml cc findbugs checkstyle golang shellcheck shelldocs
uname	Linux 73661674f7bb 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-3.3 / 3736f6e
Default Java	Private Build-1.8.0_275-8u275-b01-0ubuntu1~16.04-b01
javac	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2576/1/artifact/out/diff-compile-javac-root.txt
checkstyle	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2576/1/artifact/out/diff-checkstyle-root.txt
unit	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2576/1/artifact/out/patch-unit-hadoop-common-project_hadoop-common.txt
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2576/1/testReport/
asflicense	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2576/1/artifact/out/patch-asflicense-problems.txt
Max. process+thread count	1586 (vs. ulimit of 5500)
modules	C: hadoop-project hadoop-common-project/hadoop-common hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask U: .
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2576/1/console
versions	git=2.7.4 maven=3.3.9 shellcheck=0.3.7 findbugs=3.1.0-RC1
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[sunchao]

All tests passed except TestCompressorDecompressor.testCompressorDecompressorWithExeedBufferLimit which is fixed via backporting HADOOP-17270 to branch-3.3. Closing this.