<BUG>import com.googlecode.cqengine.index.support.DefaultConcurrentSetFactory;import com.googlecode.cqengine.index.support.Factory;</BUG><CONTEXT>package com.googlecode.cqengine;<extra_id_0>import com.googlecode.cqengine.persistence.Persistence;import com.googlecode.cqengine.persistence.onheap.OnHeapPersistence;import com.googlecode.cqengine.query.Query;</CONTEXT>
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