Use Collections.emptyList() in BasicRPCCommunications.java
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Key: GIRAPH-126
URL: https://issues.apache.org/jira/browse/GIRAPH-126
Project: Giraph
Issue Type: Improvement
Reporter: André Kelpe
Priority: Minor
I am doing some tests with giraph and I am having some memory problems. While I
was browsing through the codebase I saw that you are allocating a new ArrayList
(which has an underlying array of 10 elements) for each Vertex, that has no
Messages to be delivered. That's a waste of memory and time. This patch
replaces it with the EMPTY_LIST of the Collections utility class.
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