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)