Critical Description
On using LDAP credentials (that work with SDK 2.7.11) we are seeing authentication failures with SDK 3.0.1.
PROBLEM
We see the following NullPointerExceptions in the logs.
com.couchbase.client.core.error.AuthenticationFailureException: Unexpected error during SASL auth {"status":"SUCCESS"} |
at com.couchbase.client.core.io.netty.kv.SaslAuthenticationHandler.failConnect(SaslAuthenticationHandler.java:431) |
at com.couchbase.client.core.io.netty.kv.SaslAuthenticationHandler.channelRead(SaslAuthenticationHandler.java:209) |
...
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Caused by: java.lang.NullPointerException
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at com.couchbase.client.core.io.netty.kv.SaslAuthenticationHandler.handleListMechsResponse(SaslAuthenticationHandler.java:262) |
at com.couchbase.client.core.io.netty.kv.SaslAuthenticationHandler.channelRead(SaslAuthenticationHandler.java:202) |
... 29 more |
REPRODUCTION
Code SDK 3.0.1:
import com.couchbase.client.java.*; |
import com.couchbase.client.java.kv.*; |
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public class Demo2 { |
public static void main(String... args) { |
Cluster cluster = Cluster.connect("10.112.194.101", "Administrator", "password"); |
Bucket bucket = cluster.bucket("travel-sample"); |
Collection collection = bucket.defaultCollection();
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GetResult getResult = collection.get("airline_10"); |
System.out.println("Found document: " + getResult); |
}
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}
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1. Configure saslauthd on Couchbase Server 6.5.
[vagrant@node1-cb650-centos7 ~]$ sudo -u couchbase /usr/sbin/testsaslauthd -u guest1 -p guest1password -f /var/run/saslauthd/mux |
0: OK "Success." |
2. Execute the above code using SDK 3.0.1
Reproduction Trace Level Logs: ReproductionTraceLevel301
Not reproducible using SDK 2.7.12: ReproductionTraceLevel2712
Code SDK 2.7.12:
import com.couchbase.client.java.Bucket; |
import com.couchbase.client.java.Cluster; |
import com.couchbase.client.java.CouchbaseCluster; |
import com.couchbase.client.java.document.JsonDocument; |
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import java.util.concurrent.TimeUnit; |
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public class Demo { |
public static void main(String args[]){ |
Cluster cluster = CouchbaseCluster.create("10.112.194.101" ); |
cluster.authenticate("Administrator", "password"); |
Bucket b1 = cluster.openBucket("travel-sample", 30, TimeUnit.SECONDS); |
JsonDocument document = b1.get("airline_10"); |
System.out.print(document);
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}
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}
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Please also note that the issue is also reproducing with Native LDAP.