java.lang.UnsupportedOperationException

[giabao]

java.lang.UnsupportedOperationException
        at java.util.AbstractList.set(AbstractList.java:132)
        at java.util.Collections.swap(Collections.java:532)
        at java.util.Collections.shuffle(Collections.java:500)
        at java.util.Collections.shuffle(Collections.java:469)
        at com.couchbase.client.CouchbaseConnectionFactory.potentiallyRandomizeNodeList(CouchbaseConnectionFactory.java:529)
        at com.couchbase.client.CouchbaseConnectionFactory.initialize(CouchbaseConnectionFactory.java:189)
        at com.couchbase.client.CouchbaseConnectionFactory.<init>(CouchbaseConnectionFactory.java:185)
        at akka.contrib.couchbase.CBExtension.akka$contrib$couchbase$CBExtension$$bucketEntry(CBExtension.scala:19)

[giabao]

error is caused by:

val baseList = cfg.getString("nodes").split(';').toList.map(URI.create).asJava
val cf = new CouchbaseConnectionFactory(baseList, bucket, password)

=> baseList will be a scala.collection.convert.Wrappers.SeqWrapper that not has set method.

We need change to:

val baseList = cfg.getString("nodes").split(';').toBuffer.map(URI.create).asJava