Alert slack notification error

Security is disabled so not sure why I am getting the SSL error below

elasticserach.yml
opendistro_security.disabled: true

[2019-05-14T09:14:43,361][ERROR][c.a.o.a.d.f.SlackDestinationFactory] [5CxMj8A] Exception publishing Message: DestinationType: SLACK, DestinationName:SlackRRCAlerts, Url: https://hooks.slack.com/services/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, Message: {“text”:“Heartbeet Running Failed \n\n Monitor Heartbeat Running just entered alert status. Please investigate the issue.\n- Trigger: Heartbeat Running Failed\n- Severity: 1\n- Period start: 2019-05-14T13:13:42.855Z\n- Period end: 2019-05-14T13:14:42.855Z”}
javax.net.ssl.SSLException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at sun.security.ssl.Alert.createSSLException(Alert.java:133) ~[?:?]
at sun.security.ssl.TransportContext.fatal(TransportContext.java:321) ~[?:?]
at sun.security.ssl.TransportContext.fatal(TransportContext.java:264) ~[?:?]
at sun.security.ssl.TransportContext.fatal(TransportContext.java:259) ~[?:?]
at sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1314) ~[?:?]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:408) ~[?:?]
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:141) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107) ~[httpclient-4.5.2.jar:4.5.2]
at com.amazon.opendistroforelasticsearch.alerting.destination.client.DestinationHttpClient.getHttpResponse(DestinationHttpClient.java:115) ~[alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.client.DestinationHttpClient.execute(DestinationHttpClient.java:80) ~[alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.factory.SlackDestinationFactory.publish(SlackDestinationFactory.java:42) [alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.factory.SlackDestinationFactory.publish(SlackDestinationFactory.java:29) [alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.Notification.lambda$publish$0(Notification.java:43) [alerting-notification-0.9.0.0.jar:?]
at java.security.AccessController.doPrivileged(Native Method) [?:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.Notification.publish(Notification.java:41) [alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.model.destination.Destination.publish(Destination.kt:167) [opendistro_alerting-0.9.0.0.jar:0.9.0.0]
at com.amazon.opendistroforelasticsearch.alerting.MonitorRunner.runAction(MonitorRunner.kt:393) [opendistro_alerting-0.9.0.0.jar:0.9.0.0]
at com.amazon.opendistroforelasticsearch.alerting.MonitorRunner.runMonitor(MonitorRunner.kt:196) [opendistro_alerting-0.9.0.0.jar:0.9.0.0]
at com.amazon.opendistroforelasticsearch.alerting.resthandler.RestExecuteMonitorAction$prepareRequest$1$executeMonitor$1$1.run(RestExecuteMonitorAction.kt:65) [opendistro_alerting-0.9.0.0.jar:0.9.0.0]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:681) [elasticsearch-6.7.1.jar:6.7.1]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at sun.security.validator.PKIXValidator.(PKIXValidator.java:89) ~[?:?]
at sun.security.validator.Validator.getInstance(Validator.java:181) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.getValidator(X509TrustManagerImpl.java:308) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkTrustedInit(X509TrustManagerImpl.java:176) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:188) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:129) ~[?:?]
at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:626) ~[?:?]
at sun.security.ssl.CertificateStatus$CertificateStatusConsumer.consume(CertificateStatus.java:292) ~[?:?]
at sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392) ~[?:?]
at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:448) ~[?:?]
at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:425) ~[?:?]
at sun.security.ssl.TransportContext.dispatch(TransportContext.java:178) ~[?:?]
at sun.security.ssl.SSLTransport.decode(SSLTransport.java:164) ~[?:?]
at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1152) ~[?:?]
at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1063) ~[?:?]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:402) ~[?:?]
… 29 more
Caused by: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at java.security.cert.PKIXParameters.setTrustAnchors(PKIXParameters.java:200) ~[?:?]
at java.security.cert.PKIXParameters.(PKIXParameters.java:120) ~[?:?]
at java.security.cert.PKIXBuilderParameters.(PKIXBuilderParameters.java:104) ~[?:?]
at sun.security.validator.PKIXValidator.(PKIXValidator.java:86) ~[?:?]
at sun.security.validator.Validator.getInstance(Validator.java:181) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.getValidator(X509TrustManagerImpl.java:308) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkTrustedInit(X509TrustManagerImpl.java:176) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:188) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:129) ~[?:?]
at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:626) ~[?:?]
at sun.security.ssl.CertificateStatus$CertificateStatusConsumer.consume(CertificateStatus.java:292) ~[?:?]
at sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392) ~[?:?]
at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:448) ~[?:?]
at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:425) ~[?:?]
at sun.security.ssl.TransportContext.dispatch(TransportContext.java:178) ~[?:?]
at sun.security.ssl.SSLTransport.decode(SSLTransport.java:164) ~[?:?]
at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1152) ~[?:?]
at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1063) ~[?:?]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:402) ~[?:?]
… 29 more
[2019-05-14T09:14:43,377][INFO ][c.a.o.a.m.MonitorRunResult] [5CxMj8A] Internal error: javax.net.ssl.SSLException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty. See the Elasticsearch.log for details
java.lang.IllegalStateException: javax.net.ssl.SSLException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at com.amazon.opendistroforelasticsearch.alerting.destination.factory.SlackDestinationFactory.publish(SlackDestinationFactory.java:46) ~[alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.factory.SlackDestinationFactory.publish(SlackDestinationFactory.java:29) ~[alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.Notification.lambda$publish$0(Notification.java:43) ~[alerting-notification-0.9.0.0.jar:?]
at java.security.AccessController.doPrivileged(Native Method) ~[?:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.Notification.publish(Notification.java:41) ~[alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.model.destination.Destination.publish(Destination.kt:167) ~[opendistro_alerting-0.9.0.0.jar:0.9.0.0]
at com.amazon.opendistroforelasticsearch.alerting.MonitorRunner.runAction(MonitorRunner.kt:393) ~[opendistro_alerting-0.9.0.0.jar:0.9.0.0]
at com.amazon.opendistroforelasticsearch.alerting.MonitorRunner.runMonitor(MonitorRunner.kt:196) [opendistro_alerting-0.9.0.0.jar:0.9.0.0]
at com.amazon.opendistroforelasticsearch.alerting.resthandler.RestExecuteMonitorAction$prepareRequest$1$executeMonitor$1$1.run(RestExecuteMonitorAction.kt:65) [opendistro_alerting-0.9.0.0.jar:0.9.0.0]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:681) [elasticsearch-6.7.1.jar:6.7.1]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: javax.net.ssl.SSLException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at sun.security.ssl.Alert.createSSLException(Alert.java:133) ~[?:?]
at sun.security.ssl.TransportContext.fatal(TransportContext.java:321) ~[?:?]
at sun.security.ssl.TransportContext.fatal(TransportContext.java:264) ~[?:?]
at sun.security.ssl.TransportContext.fatal(TransportContext.java:259) ~[?:?]
at sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1314) ~[?:?]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:408) ~[?:?]
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:141) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107) ~[httpclient-4.5.2.jar:4.5.2]
at com.amazon.opendistroforelasticsearch.alerting.destination.client.DestinationHttpClient.getHttpResponse(DestinationHttpClient.java:115) ~[alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.client.DestinationHttpClient.execute(DestinationHttpClient.java:80) ~[alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.factory.SlackDestinationFactory.publish(SlackDestinationFactory.java:42) ~[alerting-notification-0.9.0.0.jar:?]
… 14 more
Caused by: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at sun.security.validator.PKIXValidator.(PKIXValidator.java:89) ~[?:?]
at sun.security.validator.Validator.getInstance(Validator.java:181) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.getValidator(X509TrustManagerImpl.java:308) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkTrustedInit(X509TrustManagerImpl.java:176) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:188) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:129) ~[?:?]
at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:626) ~[?:?]
at sun.security.ssl.CertificateStatus$CertificateStatusConsumer.consume(CertificateStatus.java:292) ~[?:?]
at sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392) ~[?:?]
at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:448) ~[?:?]
at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:425) ~[?:?]
at sun.security.ssl.TransportContext.dispatch(TransportContext.java:178) ~[?:?]
at sun.security.ssl.SSLTransport.decode(SSLTransport.java:164) ~[?:?]
at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1152) ~[?:?]
at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1063) ~[?:?]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:402) ~[?:?]
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:141) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107) ~[httpclient-4.5.2.jar:4.5.2]
at com.amazon.opendistroforelasticsearch.alerting.destination.client.DestinationHttpClient.getHttpResponse(DestinationHttpClient.java:115) ~[alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.client.DestinationHttpClient.execute(DestinationHttpClient.java:80) ~[alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.factory.SlackDestinationFactory.publish(SlackDestinationFactory.java:42) ~[alerting-notification-0.9.0.0.jar:?]
… 14 more
Caused by: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at java.security.cert.PKIXParameters.setTrustAnchors(PKIXParameters.java:200) ~[?:?]
at java.security.cert.PKIXParameters.(PKIXParameters.java:120) ~[?:?]
at java.security.cert.PKIXBuilderParameters.(PKIXBuilderParameters.java:104) ~[?:?]
at sun.security.validator.PKIXValidator.(PKIXValidator.java:86) ~[?:?]
at sun.security.validator.Validator.getInstance(Validator.java:181) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.getValidator(X509TrustManagerImpl.java:308) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkTrustedInit(X509TrustManagerImpl.java:176) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:188) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:129) ~[?:?]
at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:626) ~[?:?]
at sun.security.ssl.CertificateStatus$CertificateStatusConsumer.consume(CertificateStatus.java:292) ~[?:?]
at sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392) ~[?:?]
at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:448) ~[?:?]
at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:425) ~[?:?]
at sun.security.ssl.TransportContext.dispatch(TransportContext.java:178) ~[?:?]
at sun.security.ssl.SSLTransport.decode(SSLTransport.java:164) ~[?:?]
at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1152) ~[?:?]
at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1063) ~[?:?]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:402) ~[?:?]
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:141) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) ~[httpclient-4.5.2.jar:4.5.2]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107) ~[httpclient-4.5.2.jar:4.5.2]
at com.amazon.opendistroforelasticsearch.alerting.destination.client.DestinationHttpClient.getHttpResponse(DestinationHttpClient.java:115) ~[alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.client.DestinationHttpClient.execute(DestinationHttpClient.java:80) ~[alerting-notification-0.9.0.0.jar:?]
at com.amazon.opendistroforelasticsearch.alerting.destination.factory.SlackDestinationFactory.publish(SlackDestinationFactory.java:42) ~[alerting-notification-0.9.0.0.jar:?]
… 14 more
^[[3~

Thanks for posting an issue.

I dig in little bit and looks like it could be due to some JDK version or JDK version conflict.

Could you confirm what version are you using and there are no conflicts in it ?

root@cloudcontrol-elasticsearch2:~# java -version
openjdk version “11.0.3” 2019-04-16
OpenJDK Runtime Environment (build 11.0.3+1-Debian-1bpo91)
OpenJDK 64-Bit Server VM (build 11.0.3+1-Debian-1bpo91, mixed mode, sharing)
root@cloudcontrol-elasticsearch2:~# which java
/usr/bin/java

root@cloudcontrol-elasticsearch2:~# update-alternatives --config java
There is only one alternative in link group java (providing /usr/bin/java): /usr/lib/jvm/java-11-openjdk-amd64/bin/java
Nothing to configure.

Any fix found @mihirsoni ? We’ve been hit with the same. Not able to configure S3 repository.

@frankfoti, @jawjawjaw - Are you running on Ubuntu 18.04 or docker? Can you try the fix described in: https://stackoverflow.com/a/50103533 and if that doesn’t work, https://stackoverflow.com/a/50688351

@vinooamzn Running Ubuntu 18.04.
Got a fix for it. I purged the openjdk-11-jdk and java-common package.
Then installed openjdk-8-jdk and then openjdk-11-jdk. Everything seemed to work. From downloading plugins over TLS to connecting to S3 for snapshotting.

apt-get purge openjdk-11* java-common
apt install openjdk-8-jdk -y
apt install openjdk-11-jdk -y
1 Like

That fixed it, thank you!