diff --git a/core/src/main/java/com/orientechnologies/orient/core/db/document/ODatabaseDocumentTx.java b/core/src/main/java/com/orientechnologies/orient/core/db/document/ODatabaseDocumentTx.java
index d3a60c5e8f2..dd0ff4fffe1 100755
--- a/core/src/main/java/com/orientechnologies/orient/core/db/document/ODatabaseDocumentTx.java
+++ b/core/src/main/java/com/orientechnologies/orient/core/db/document/ODatabaseDocumentTx.java
@@ -1645,7 +1645,7 @@ public Set<ORecord> executeReadRecords(final Set<ORecordId> iRids, final boolean
       if (iRids == null || iRids.isEmpty())
         return records;
 
-      final Set<ORecordId> rids = new HashSet<ORecordId>(iRids);
+      final Collection<ORecordId> rids = new ArrayList<ORecordId>(iRids);
 
       for (Iterator<ORecordId> it = rids.iterator(); it.hasNext();) {
         final ORecordId rid = it.next();
@@ -1669,7 +1669,7 @@ record = getLocalCache().findRecord(rid);
         }
       }
 
-      final List<OPair<ORecordId, ORawBuffer>> rawRecords = ((OAbstractPaginatedStorage) storage).readRecords(rids);
+      final Collection<OPair<ORecordId, ORawBuffer>> rawRecords = ((OAbstractPaginatedStorage) storage).readRecords(rids);
       for (OPair<ORecordId, ORawBuffer> entry : rawRecords) {
         // NO SAME RECORD TYPE: CAN'T REUSE OLD ONE BUT CREATE A NEW ONE FOR IT
         final ORecord record = Orient.instance().getRecordFactoryManager().newInstance(entry.value.recordType);
diff --git a/core/src/main/java/com/orientechnologies/orient/core/storage/impl/local/OAbstractPaginatedStorage.java b/core/src/main/java/com/orientechnologies/orient/core/storage/impl/local/OAbstractPaginatedStorage.java
index 7bf88f65e8d..b11ea08a5fb 100644
--- a/core/src/main/java/com/orientechnologies/orient/core/storage/impl/local/OAbstractPaginatedStorage.java
+++ b/core/src/main/java/com/orientechnologies/orient/core/storage/impl/local/OAbstractPaginatedStorage.java
@@ -20,20 +20,6 @@
 
 package com.orientechnologies.orient.core.storage.impl.local;
 
-import java.io.*;
-import java.nio.ByteBuffer;
-import java.nio.channels.Channels;
-import java.nio.channels.FileChannel;
-import java.nio.charset.Charset;
-import java.text.SimpleDateFormat;
-import java.util.*;
-import java.util.concurrent.Callable;
-import java.util.concurrent.atomic.AtomicBoolean;
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipInputStream;
-import java.util.zip.ZipOutputStream;
-
 import com.orientechnologies.common.concur.lock.OLockManager;
 import com.orientechnologies.common.concur.lock.OModificationOperationProhibitedException;
 import com.orientechnologies.common.directmemory.ODirectMemoryPointer;
@@ -127,6 +113,20 @@
 import com.orientechnologies.orient.core.tx.OTxListener;
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 
+import java.io.*;
+import java.nio.ByteBuffer;
+import java.nio.channels.Channels;
+import java.nio.channels.FileChannel;
+import java.nio.charset.Charset;
+import java.text.SimpleDateFormat;
+import java.util.*;
+import java.util.concurrent.Callable;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
+
 /**
  * @author Andrey Lomakin
  * @since 28.03.13
@@ -3221,7 +3221,7 @@ private ORawBuffer readRecord(final OCluster clusterSegment, final ORecordId rid
    * @param iRids
    *          Set of rids to load in one shot
    */
-  public List<OPair<ORecordId, ORawBuffer>> readRecords(final Set<ORecordId> iRids) {
+  public Collection<OPair<ORecordId, ORawBuffer>> readRecords(final Collection<ORecordId> iRids) {
     checkOpeness();
 
     final List<OPair<ORecordId, ORawBuffer>> records = new ArrayList<OPair<ORecordId, ORawBuffer>>();
@@ -4394,7 +4394,7 @@ protected ORID getImmutableResourceId(ORID iResourceId) {
     }
   }
 
-  protected Map<Integer, List<ORecordId>> getRidsGroupedByCluster(final Set<ORecordId> iRids) {
+  protected Map<Integer, List<ORecordId>> getRidsGroupedByCluster(final Collection<ORecordId> iRids) {
     final Map<Integer, List<ORecordId>> ridsPerCluster = new HashMap<Integer, List<ORecordId>>();
     for (ORecordId rid : iRids) {
       List<ORecordId> rids = ridsPerCluster.get(rid.clusterId);