algebricks/algebricks-runtime/src/main/java/org/apache/hyracks/algebricks/runtime/operators/group/MicroPreClusteredGroupRuntimeFactory.java
hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/group/preclustered/PreclusteredGroupOperatorNodePushable.java

algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/operators/physical/HybridHashJoinPOperator.java
hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/join/JoinComparator.java

algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/operators/physical/HybridHashJoinPOperator.java
hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/util/FrameTuplePairComparator.java

algebricks/algebricks-runtime/src/main/java/org/apache/hyracks/algebricks/runtime/operators/std/NestedTupleSourceRuntimeFactory.java
hyracks/hyracks-control/hyracks-control-nc/src/main/java/org/apache/hyracks/control/nc/profiling/ConnectorSenderProfilingFrameWriter.java

algebricks/algebricks-runtime/src/main/java/org/apache/hyracks/algebricks/runtime/operators/sort/InMemorySortRuntimeFactory.java
hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/join/OptimizedHybridHashJoinOperatorDescriptor.java

algebricks/algebricks-runtime/src/main/java/org/apache/hyracks/algebricks/runtime/operators/std/NestedTupleSourceRuntimeFactory.java
hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/misc/SplitVectorOperatorDescriptor.java