Github user hmcl commented on a diff in the pull request:
https://github.com/apache/storm/pull/2177#discussion_r123886555
--- Diff:
external/storm-kafka-client/src/main/java/org/apache/storm/kafka/spout/NamedSubscription.java
---
@@ -56,6 +57,6 @@ public NamedSubscription(String ... topics) {
@Override
public String getTopicsString() {
- return String.valueOf(topics);
+ return StringUtils.join(topics, ",");
--- End diff --
I would like to suggest that you use instead Guava's
`Joiner.on(",").join(topics);` which will avoid adding a new dependency
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