@daschl
I did not get .trustManager() option but .trustManagerFactory() is available hence I made the changes as below
TrustManagerFactory insecureTrustManagerFac = InsecureTrustManagerFactory.INSTANCE;
ClusterEnvironment.Builder envBuilder = ClusterEnvironment
.builder().ioEnvironment(IoEnvironment.eventLoopThreadCount(10))
.timeoutConfig(TimeoutConfig.connectTimeout(Duration.ofMillis(2500))).
securityConfig(SecurityConfig.enableTls(true).enableHostnameVerification(true).trustManagerFactory(insecureTrustManagerFac));
Still I see handshake failure as below -
Aug 25, 2021 7:53:34 PM com.couchbase.client.core.deps.io.netty.handler.ssl.util.InsecureTrustManagerFactory$1 checkServerTrusted
FINE: Accepting a server certificate: CN=Couchbase Server
Aug 25, 2021 7:53:34 PM com.couchbase.client.core.deps.io.netty.handler.ssl.ReferenceCountedOpenSslEngine shutdownWithError
FINE: SSL_read failed with 1: OpenSSL error: 268436496 error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE
Aug 25, 2021 7:53:34 PM com.couchbase.client.core.deps.io.netty.handler.ssl.util.InsecureTrustManagerFactory$1 checkServerTrusted
FINE: Accepting a server certificate: CN=Couchbase Server
Aug 25, 2021 7:53:34 PM com.couchbase.client.core.deps.io.netty.handler.ssl.ReferenceCountedOpenSslEngine shutdownWithError
FINE: SSL_read failed with 1: OpenSSL error: 268436496 error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE
Aug 25, 2021 7:53:34 PM com.couchbase.client.core.deps.io.netty.handler.ssl.util.InsecureTrustManagerFactory$1 checkServerTrusted
FINE: Accepting a server certificate: CN=Couchbase Server
Aug 25, 2021 7:53:34 PM com.couchbase.client.core.deps.io.netty.handler.ssl.ReferenceCountedOpenSslEngine shutdownWithError
FINE: SSL_read failed with 1: OpenSSL error: 268436496 error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE
Aug 25, 2021 7:53:34 PM com.couchbase.client.core.deps.io.netty.handler.ssl.util.InsecureTrustManagerFactory$1 checkServerTrusted
FINE: Accepting a server certificate: CN=Couchbase Server
Aug 25, 2021 7:53:34 PM com.couchbase.client.core.deps.io.netty.handler.ssl.ReferenceCountedOpenSslEngine shutdownWithError
FINE: SSL_read failed with 1: OpenSSL error: 268436496 error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE