[TINKERPOP-2733] NullPointerException when calling chooseConnection(Client.java:813)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 3.5.2
• Component/s: driver
• Environment: Production
• Assignee: Unassigned
• Reporter: Mark Bennett
• Created: 08/Apr/22 21:22
• Updated: 08/Apr/22 21:38
• Resolved: 08/Apr/22 21:38

Description

This is similar to TINKERPOP-2597 and reported fixed in gremlin driver 3.5.2. However, we are still getting the null pointer exceptions, and our stack trace it a bit different:

java.lang.NullPointerException: null
at org.apache.tinkerpop.gremlin.driver.Client$SessionedClient.chooseConnection(Client.java:813)
at org.apache.tinkerpop.gremlin.driver.Client.submitAsync(Client.java:390)
at org.apache.tinkerpop.gremlin.driver.Client.submitAsync(Client.java:373)
at org.apache.tinkerpop.gremlin.driver.Client.submitAsync(Client.java:298)
at org.apache.tinkerpop.gremlin.driver.Client.submit(Client.java:250)

In addition we see this in our logs:

class=org.apache.tinkerpop.gremlin.driver.ConnectionPool
Signalled closing of connection pool on Host{}

class=org.apache.tinkerpop.gremlin.driver.Client
Could not initialize client for Optional[]