# java.lang.NoClassDefFoundError: Could not initialize class com.sun.jna.Native **URL:** \ **Category:** Elasticsearch\ **Created:** [September 13, 2020, 2:06pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441 "2020-09-13T14:06:11Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![muthug](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/muthug/32/82555_2.png) [@muthug](https://discuss.elastic.co/u/muthug)\ **Post date:** [September 13, 2020, 2:06pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/1 "2020-09-13T14:06:11Z")
Hi, Greetings !! I have installed ES 7.9 version and jdk 8u202 version. But unable to start the ES service. Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: fatal error in thread [main], exiting Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: java.lang.NoClassDefFoundError: Could not initialize class com.sun.jna.Native Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.systemd.Libsystemd.lambda$static$0(Libsystemd.java:34) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at java.base/java.security.AccessController.doPrivileged(AccessController.java:312) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.systemd.Libsystemd.(Libsystemd.java:33) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.systemd.SystemdPlugin.sd\_notify(SystemdPlugin.java:126) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.systemd.SystemdPlugin.onNodeStarted(SystemdPlugin.java:137) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at java.base/java.util.ArrayList.forEach(ArrayList.java:1510) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.node.Node.start(Node.java:868) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.bootstrap.Bootstrap.start(Bootstrap.java:317) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:402) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:170) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:161) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:127) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.cli.Command.main(Command.java:90) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:126) Sep 13 16:03:20 FRAKHRPL100N systemd-entrypoint[72677]: at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [September 13, 2020, 2:10pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/2 "2020-09-13T14:10:43Z")
What is your OS? What type of hardware are you deploying on? ---
**Author:** ![muthug](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/muthug/32/82555_2.png) [@muthug](https://discuss.elastic.co/u/muthug)\ **Post date:** [September 13, 2020, 2:12pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/3 "2020-09-13T14:12:04Z")
RHEL 7, RAM 8GB HDD 80GB ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [September 13, 2020, 2:13pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/4 "2020-09-13T14:13:44Z")
Why are you not using the JVM that comes bundled with Elasticsearch? ---
**Author:** ![muthug](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/muthug/32/82555_2.png) [@muthug](https://discuss.elastic.co/u/muthug)\ **Post date:** [September 13, 2020, 2:18pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/5 "2020-09-13T14:18:09Z")
Currently we are running with very old ELK version(i hope you are aware), my infra is completely build with RHEL. So, i am just installing newer version of ELK in single machine to test the require things which we are going to use. ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [September 13, 2020, 2:20pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/6 "2020-09-13T14:20:18Z")
I still do not understand why you are not using the bundled JVM. I would at least test it to see if that resolves the issue. ---
**Author:** ![muthug](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/muthug/32/82555_2.png) [@muthug](https://discuss.elastic.co/u/muthug)\ **Post date:** [September 13, 2020, 2:25pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/7 "2020-09-13T14:25:12Z")
I am really sorry Christian, i am not getting you what exactly you are saying. My ES version: /usr/share/elasticsearch/bin/elasticsearch --version Version: 7.9.1, Build: default/rpm/083627f112ba94dffc1232e8b42b73492789ef91/2020-09-01T21:22:21.964974Z, **JVM: 14.0.1** ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [September 13, 2020, 2:33pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/8 "2020-09-13T14:33:22Z")
> [@muthug](#): > > Hi, > > Greetings !! > > I have installed ES 7.9 version and jdk 8u202 version. This was what confused me. If you are using that JVM I am not sure what is wrong. What do you get if you run `uname -m`? ---
**Author:** ![muthug](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/muthug/32/82555_2.png) [@muthug](https://discuss.elastic.co/u/muthug)\ **Post date:** [September 13, 2020, 2:37pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/9 "2020-09-13T14:37:19Z")
x86\_64 ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [September 13, 2020, 2:38pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/10 "2020-09-13T14:38:05Z")
Then I am out of ideas. Let's see if anyone else have come across this. ---
**Author:** ![muthug](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/muthug/32/82555_2.png) [@muthug](https://discuss.elastic.co/u/muthug)\ **Post date:** [September 13, 2020, 2:38pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/11 "2020-09-13T14:38:47Z")
☹ ☹ ☹ ---
**Author:** ![muthug](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/muthug/32/82555_2.png) [@muthug](https://discuss.elastic.co/u/muthug)\ **Post date:** [September 13, 2020, 2:40pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/12 "2020-09-13T14:40:10Z")
It is freshly installed one. and i am ready to reinstall if you have any links which helps me with step by step installation instruction of ELK 7.9 on RHEL 7 ---
**Author:** ![muthug](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/muthug/32/82555_2.png) [@muthug](https://discuss.elastic.co/u/muthug)\ **Post date:** [September 13, 2020, 3:05pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/13 "2020-09-13T15:05:59Z")
I have found below details in log (/var/log/elasticsearch) at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:127) [elasticsearch-cli-7.9.1.jar:7.9.1] at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-cli-7.9.1.jar:7.9.1] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:126) [elasticsearch-7.9.1.jar:7.9.1] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) [elasticsearch-7.9.1.jar:7.9.1] [2020-09-13T16:58:01,507][WARN][o.e.b.Natives] [FRAKHRPL100N] cannot check if running as root because JNA is not available [2020-09-13T16:58:01,507][WARN][o.e.b.Natives] [FRAKHRPL100N] cannot install system call filter because JNA is not available [2020-09-13T16:58:01,508][WARN][o.e.b.Natives] [FRAKHRPL100N] cannot register console handler because JNA is not available [2020-09-13T16:58:01,509][WARN][o.e.b.Natives] [FRAKHRPL100N] cannot getrlimit RLIMIT\_NPROC because JNA is not available [2020-09-13T16:58:01,509][WARN][o.e.b.Natives] [FRAKHRPL100N] cannot getrlimit RLIMIT\_AS because JNA is not available [2020-09-13T16:58:01,510][WARN][o.e.b.Natives] [FRAKHRPL100N] cannot getrlimit RLIMIT\_FSIZE because JNA is not available [2020-09-13T16:58:01,957][INFO][o.e.n.Node] [FRAKHRPL100N] version[7.9.1], pid[75824], build[default/rpm/083627f112ba94dffc1232e8b42b73492789ef91/2020-09-01T21:22:21.964974Z], OS[Linux/3.10.0-1127.18.2.el7.x86\_64/amd64], JVM[AdoptOpenJDK/OpenJDK 64-Bit Server VM/14.0.1/14.0.1+7] [2020-09-13T16:58:01,970][INFO][o.e.n.Node] [FRAKHRPL100N] JVM home [/usr/share/elasticsearch/jdk] [2020-09-13T16:58:01,971][INFO][o.e.n.Node] [FRAKHRPL100N] JVM arguments [-Xshare:auto, -Des.networkaddress.cache.ttl=60, -Des.networkaddress.cache.negative.ttl=10, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -XX:+ShowCodeDetailsInExceptionMessages, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dio.netty.allocator.numDirectArenas=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -Djava.locale.providers=SPI,COMPAT, -Xms1g, -Xmx1g, -XX:+UseG1GC, -XX:G1ReservePercent=25, -XX:InitiatingHeapOccupancyPercent=30, -Djava.io.tmpdir=/tmp/elasticsearch-11637351746200502192, -XX:+HeapDumpOnOutOfMemoryError, -XX:HeapDumpPath=/var/lib/elasticsearch, -XX:ErrorFile=/var/log/elasticsearch/hs\_err\_pid%p.log, -Xlog:gc\*,gc+age=trace,safepoint:file=/var/log/elasticsearch/gc.log:utctime,pid,tags:filecount=32,filesize=64m, -XX:MaxDirectMemorySize=536870912, -Des.path.home=/usr/share/elasticsearch, -Des.path.conf=/etc/elasticsearch, -Des.distribution.flavor=default, -Des.distribution.type=rpm, -Des.bundled\_jdk=true] ---
**Author:** ![muthug](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/muthug/32/82555_2.png) [@muthug](https://discuss.elastic.co/u/muthug)\ **Post date:** [September 13, 2020, 3:24pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/14 "2020-09-13T15:24:26Z")
Service started ref link **([https://stackoverflow.com/questions/47824643/unable-to-load-jna-native-support-library-elasticsearch-6-x/50371992#50371992](https://stackoverflow.com/questions/47824643/unable-to-load-jna-native-support-library-elasticsearch-6-x/50371992#50371992))** service elasticsearch status ● elasticsearch.service - Elasticsearch Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; enabled; vendor preset: disabled) Active: active (running) since Sun 2020-09-13 17:22:50 CEST; 21s ago Docs: [https://www.elastic.co](https://www.elastic.co) Main PID: 77699 (java) CGroup: /system.slice/elasticsearch.service ├─77699 /usr/share/elasticsearch/jdk/bin/java -Xshare:auto -Des.networkaddress.cache.ttl=60 -Des.networkaddress.cache.negative.ttl=10 -XX:+AlwaysPreTouch -Xss1m -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Djna.nosys=tru... └─77864 /usr/share/elasticsearch/modules/x-pack-ml/platform/linux-x86\_64/bin/controller ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [October 11, 2020, 3:24pm UTC](https://discuss.elastic.co/t/java-lang-noclassdeffounderror-could-not-initialize-class-com-sun-jna-native/248441/15 "2020-10-11T15:24:27Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.