Plugin load error after upgrade from 7.0.1 to 7.2.0

I upgraded one of my nodes from ES 7.0.1 -> 7.2.0 and 1.0.1 -> 1.2.0. After upgrade I get the following error.

[2019-10-14T11:16:36,690][INFO ][o.e.e.NodeEnvironment    ] [watcher_broseph] using [1] data paths, mounts [[/ (/dev/sda2)]], net usable_space [2.3tb], net total_space [2.6tb], types [ext4]
[2019-10-14T11:16:36,694][INFO ][o.e.e.NodeEnvironment    ] [watcher_broseph] heap size [29.7gb], compressed ordinary object pointers [true]
[2019-10-14T11:16:36,890][INFO ][o.e.n.Node               ] [watcher_broseph] node name [watcher_broseph], node ID [nz_rt_FFQr2IH6i8E0fnuQ], cluster name [watcher]
[2019-10-14T11:16:36,891][INFO ][o.e.n.Node               ] [watcher_broseph] version[7.2.0], pid[28321], build[oss/deb/508c38a/2019-06-20T15:54:18.811730Z], OS[Linux/4.15.0-65-generic/amd64], JVM[Ubuntu/OpenJDK 64-Bit Server VM/11.0.4/11.0.4+11-post-Ubuntu-1ubuntu218.04.3]
[2019-10-14T11:16:36,892][INFO ][o.e.n.Node               ] [watcher_broseph] JVM home [/usr/lib/jvm/java-11-openjdk-amd64]
[2019-10-14T11:16:36,892][INFO ][o.e.n.Node               ] [watcher_broseph] JVM arguments [-Xms30g, -Xmx30g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -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, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -Djava.io.tmpdir=/tmp/elasticsearch-12014681030949229369, -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, -Djava.locale.providers=COMPAT, -XX:UseAVX=2, -Dclk.tck=100, -Djdk.attach.allowAttachSelf=true, -Djava.security.policy=file:///usr/share/elasticsearch/plugins/opendistro_performance_analyzer/pa_config/es_security.policy, -Dio.netty.allocator.type=pooled, -XX:MaxDirectMemorySize=16106127360, -Des.path.home=/usr/share/elasticsearch, -Des.path.conf=/etc/elasticsearch, -Des.distribution.flavor=oss, -Des.distribution.type=deb, -Des.bundled_jdk=true]
[2019-10-14T11:16:37,804][INFO ][c.a.o.e.p.c.PluginSettings] [watcher_broseph] Config: metricsLocation: /dev/shm/performanceanalyzer/, metricsDeletionInterval: 1, httpsEnabled: false, cleanup-metrics-db-files: true
[2019-10-14T11:16:37,997][INFO ][c.a.o.s.OpenDistroSecurityPlugin] [watcher_broseph] ES Config path is /etc/elasticsearch
[2019-10-14T11:16:38,161][INFO ][c.a.o.s.s.DefaultOpenDistroSecurityKeyStore] [watcher_broseph] OpenSSL OpenSSL 1.1.0j  20 Nov 2018 (269484207) available
[2019-10-14T11:16:38,268][INFO ][c.a.o.s.s.DefaultOpenDistroSecurityKeyStore] [watcher_broseph] JVM supports TLSv1.3
[2019-10-14T11:16:38,269][INFO ][c.a.o.s.s.DefaultOpenDistroSecurityKeyStore] [watcher_broseph] Config directory is /etc/elasticsearch/, from there the key- and truststore files are resolved relatively
[2019-10-14T11:16:38,300][ERROR][o.e.b.Bootstrap          ] [watcher_broseph] Exception
java.lang.IllegalStateException: failed to load plugin class [com.amazon.opendistroforelasticsearch.security.OpenDistroSecurityPlugin]
        at org.elasticsearch.plugins.PluginsService.loadPlugin(PluginsService.java:614) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.loadBundle(PluginsService.java:556) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.loadBundles(PluginsService.java:471) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.<init>(PluginsService.java:163) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.node.Node.<init>(Node.java:307) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.node.Node.<init>(Node.java:251) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:221) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:221) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:349) [elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) [elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) [elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) [elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) [elasticsearch-cli-7.2.0.jar:7.2.0]
        at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-cli-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115) [elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) [elasticsearch-7.2.0.jar:7.2.0]
Caused by: java.lang.reflect.InvocationTargetException
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:?]
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:?]
        at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:?]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:490) ~[?:?]
        at org.elasticsearch.plugins.PluginsService.loadPlugin(PluginsService.java:605) ~[elasticsearch-7.2.0.jar:7.2.0]
        ... 15 more
Caused by: java.lang.NoClassDefFoundError: io/netty/internal/tcnative/SSLPrivateKeyMethod
        at io.netty.handler.ssl.SslContext.newServerContextInternal(SslContext.java:423) ~[?:?]
        at io.netty.handler.ssl.SslContextBuilder.build(SslContextBuilder.java:447) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore$1.run(DefaultOpenDistroSecurityKeyStore.java:785) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore$1.run(DefaultOpenDistroSecurityKeyStore.java:782) ~[?:?]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.buildSSLContext0(DefaultOpenDistroSecurityKeyStore.java:782) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.buildSSLServerContext(DefaultOpenDistroSecurityKeyStore.java:746) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.initSSLConfig(DefaultOpenDistroSecurityKeyStore.java:338) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.<init>(DefaultOpenDistroSecurityKeyStore.java:151) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.OpenDistroSecuritySSLPlugin.<init>(OpenDistroSecuritySSLPlugin.java:194) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.OpenDistroSecurityPlugin.<init>(OpenDistroSecurityPlugin.java:212) ~[?:?]
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:?]
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:?]
        at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:?]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:490) ~[?:?]
        at org.elasticsearch.plugins.PluginsService.loadPlugin(PluginsService.java:605) ~[elasticsearch-7.2.0.jar:7.2.0]
        ... 15 more
Caused by: java.lang.ClassNotFoundException: io.netty.internal.tcnative.SSLPrivateKeyMethod
        at java.net.URLClassLoader.findClass(URLClassLoader.java:471) ~[?:?]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:588) ~[?:?]
        at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:899) ~[?:?]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[?:?]
        at io.netty.handler.ssl.SslContext.newServerContextInternal(SslContext.java:423) ~[?:?]
        at io.netty.handler.ssl.SslContextBuilder.build(SslContextBuilder.java:447) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore$1.run(DefaultOpenDistroSecurityKeyStore.java:785) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore$1.run(DefaultOpenDistroSecurityKeyStore.java:782) ~[?:?]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.buildSSLContext0(DefaultOpenDistroSecurityKeyStore.java:782) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.buildSSLServerContext(DefaultOpenDistroSecurityKeyStore.java:746) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.initSSLConfig(DefaultOpenDistroSecurityKeyStore.java:338) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.<init>(DefaultOpenDistroSecurityKeyStore.java:151) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.OpenDistroSecuritySSLPlugin.<init>(OpenDistroSecuritySSLPlugin.java:194) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.OpenDistroSecurityPlugin.<init>(OpenDistroSecurityPlugin.java:212) ~[?:?]
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:?]
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:?]
        at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:?]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:490) ~[?:?]
        at org.elasticsearch.plugins.PluginsService.loadPlugin(PluginsService.java:605) ~[elasticsearch-7.2.0.jar:7.2.0]
        ... 15 more
[2019-10-14T11:16:38,322][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [watcher_broseph] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: failed to load plugin class [com.amazon.opendistroforelasticsearch.security.OpenDistroSecurityPlugin]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:163) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-7.2.0.jar:7.2.0]
        at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-7.2.0.jar:7.2.0]
Caused by: java.lang.IllegalStateException: failed to load plugin class [com.amazon.opendistroforelasticsearch.security.OpenDistroSecurityPlugin]
        at org.elasticsearch.plugins.PluginsService.loadPlugin(PluginsService.java:614) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.loadBundle(PluginsService.java:556) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.loadBundles(PluginsService.java:471) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.<init>(PluginsService.java:163) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.node.Node.<init>(Node.java:307) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.node.Node.<init>(Node.java:251) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:221) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:221) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:349) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-7.2.0.jar:7.2.0]
        ... 6 more
Caused by: java.lang.reflect.InvocationTargetException
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:?]
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:?]
        at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:?]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:490) ~[?:?]
        at org.elasticsearch.plugins.PluginsService.loadPlugin(PluginsService.java:605) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.loadBundle(PluginsService.java:556) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.loadBundles(PluginsService.java:471) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.<init>(PluginsService.java:163) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.node.Node.<init>(Node.java:307) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.node.Node.<init>(Node.java:251) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:221) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:221) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:349) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-7.2.0.jar:7.2.0]
        ... 6 more
Caused by: java.lang.NoClassDefFoundError: io/netty/internal/tcnative/SSLPrivateKeyMethod
        at io.netty.handler.ssl.SslContext.newServerContextInternal(SslContext.java:423) ~[?:?]
        at io.netty.handler.ssl.SslContextBuilder.build(SslContextBuilder.java:447) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore$1.run(DefaultOpenDistroSecurityKeyStore.java:785) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore$1.run(DefaultOpenDistroSecurityKeyStore.java:782) ~[?:?]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.buildSSLContext0(DefaultOpenDistroSecurityKeyStore.java:782) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.buildSSLServerContext(DefaultOpenDistroSecurityKeyStore.java:746) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.initSSLConfig(DefaultOpenDistroSecurityKeyStore.java:338) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.<init>(DefaultOpenDistroSecurityKeyStore.java:151) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.OpenDistroSecuritySSLPlugin.<init>(OpenDistroSecuritySSLPlugin.java:194) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.OpenDistroSecurityPlugin.<init>(OpenDistroSecurityPlugin.java:212) ~[?:?]
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:?]
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:?]
        at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:?]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:490) ~[?:?]
        at org.elasticsearch.plugins.PluginsService.loadPlugin(PluginsService.java:605) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.loadBundle(PluginsService.java:556) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.loadBundles(PluginsService.java:471) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.<init>(PluginsService.java:163) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.node.Node.<init>(Node.java:307) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.node.Node.<init>(Node.java:251) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:221) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:221) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:349) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-7.2.0.jar:7.2.0]
        ... 6 more
Caused by: java.lang.ClassNotFoundException: io.netty.internal.tcnative.SSLPrivateKeyMethod
        at java.net.URLClassLoader.findClass(URLClassLoader.java:471) ~[?:?]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:588) ~[?:?]
        at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:899) ~[?:?]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[?:?]
        at io.netty.handler.ssl.SslContext.newServerContextInternal(SslContext.java:423) ~[?:?]
        at io.netty.handler.ssl.SslContextBuilder.build(SslContextBuilder.java:447) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore$1.run(DefaultOpenDistroSecurityKeyStore.java:785) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore$1.run(DefaultOpenDistroSecurityKeyStore.java:782) ~[?:?]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.buildSSLContext0(DefaultOpenDistroSecurityKeyStore.java:782) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.buildSSLServerContext(DefaultOpenDistroSecurityKeyStore.java:746) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.initSSLConfig(DefaultOpenDistroSecurityKeyStore.java:338) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.DefaultOpenDistroSecurityKeyStore.<init>(DefaultOpenDistroSecurityKeyStore.java:151) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.ssl.OpenDistroSecuritySSLPlugin.<init>(OpenDistroSecuritySSLPlugin.java:194) ~[?:?]
        at com.amazon.opendistroforelasticsearch.security.OpenDistroSecurityPlugin.<init>(OpenDistroSecurityPlugin.java:212) ~[?:?]
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:?]
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:?]
        at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:?]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:490) ~[?:?]
        at org.elasticsearch.plugins.PluginsService.loadPlugin(PluginsService.java:605) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.loadBundle(PluginsService.java:556) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.loadBundles(PluginsService.java:471) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.plugins.PluginsService.<init>(PluginsService.java:163) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.node.Node.<init>(Node.java:307) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.node.Node.<init>(Node.java:251) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:221) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:221) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:349) ~[elasticsearch-7.2.0.jar:7.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-7.2.0.jar:7.2.0]
        ... 6 more

I can’t seem to find any indication of why the error is actually occurring. Any pointers would be very much appreciated.