[GIRAPH-126] Use Collections.emptyList() in BasicRPCCommunications.java

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Invalid
• Assignee: André Kelpe
• Reporter: André Kelpe
• Created: 18/Jan/12 18:00
• Updated: 07/Nov/12 09:55
• Resolved: 07/Nov/12 09:55

Description

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.