using In-Memory in JanusGraph Verison 0.5.2 Throws Exception

"" <krishna...@...>

Hi folks

i have updated janusgraph version from 0.4.1 to 0.5.2. all my previous unit testcases with inmemory config throws expection below. should i want to add any more particular dependency to my project for running inmemory graph?
can you please help me regarding this issue.

using below config for inmemory janusgraph instance.
graph ="storage.backend", "inmemory")
.set("graph.timestamps",TimestampProviders.NANO) .open();

java.lang.IllegalArgumentException: Could not find implementation class: org.janusgraph.diskstorage.inmemory.InMemoryStoreManager
at org.janusgraph.util.system.ConfigurationUtil.instantiate(
at org.janusgraph.diskstorage.Backend.getImplementationClass(
at org.janusgraph.diskstorage.Backend.getStorageManager(
at org.janusgraph.core.JanusGraphFactory$

Thanks & Regards
Krishna Sailesh

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