apm-cassandra-java-driver-3.x-plugin stament can't get host bug

[DeadLion]

Please answer these questions before submitting your issue.

• Why do you submit this issue?
• Question or discussion
• Bug
• Requirement
• Feature or performance improvement

---

Bug

SkyWalking 8.5.0

now the cassandra version is 3.7.2 ，we use 3.4.0

        String remotePeer = statement.getHost() == null ? connectionInfo.getContactPoints() : (statement.getHost()
                                                                                                        .getSocketAddress()
                                                                                                        .getHostName() + ":" + statement
            .getHost()
            .getSocketAddress()
            .getPort());

statement.getHost() will throw NPE on 3.4.0 ，maybe we should check null before geting host to adapter low version's driver.

[kezhenxu94]

The supported versions is 3.7.0-3.7.2, you're using 3.4.0, that's not adapted by our contributors, if you want, you need to enhance that.