go all in on IntHashMap and LongHashMap

Author: labkey-matthewb

ehr/src/org/labkey/ehr/history/DefaultEncountersDataSource.java

@@ -16,6 +16,7 @@
 package org.labkey.ehr.history;
 
 import org.jetbrains.annotations.NotNull;
+import org.labkey.api.collections.StringHashMap;
 import org.labkey.api.data.BaseColumnInfo;
 import org.labkey.api.data.ColumnInfo;
 import org.labkey.api.data.CompareType;
@@ -39,7 +40,6 @@
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.Date;
-import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
@@ -185,7 +185,7 @@ protected Map<String, Map<Integer, Map<Integer, String>>> getSnomedTags(Containe
         final Map<FieldKey, ColumnInfo> columns = QueryService.get().getColumns(snomed, colKeys);
 
         TableSelector ts = new TableSelector(snomed, columns.values(), newFilter, null);
-        final Map<String, Map<Integer, Map<Integer, String>>> snomedMap = new HashMap<>();
+        final Map<String, Map<Integer, Map<Integer, String>>> snomedMap = new StringHashMap<>();
 
         ts.forEach(new Selector.ForEachBlock<>()
         {