diff --git a/src/ooxml/java/org/apache/poi/xssf/model/SharedStringsTable.java b/src/ooxml/java/org/apache/poi/xssf/model/SharedStringsTable.java
index 241d06f63d..8d3d57ef8b 100644
--- a/src/ooxml/java/org/apache/poi/xssf/model/SharedStringsTable.java
+++ b/src/ooxml/java/org/apache/poi/xssf/model/SharedStringsTable.java
@@ -193,7 +193,7 @@ public class SharedStringsTable extends POIXMLDocumentPart {
      * @return index the index of added entry
      * @deprecated use <code>addSharedStringItem(RichTextString string)</code> instead
      */
-    @Removal(version = "4.2")
+    @Removal(version = "4.2") //make private in 4.2
     public int addEntry(CTRst st) {
         String s = getKey(st);
         count++;
@@ -278,8 +278,8 @@ public class SharedStringsTable extends POIXMLDocumentPart {
     @Override
     protected void commit() throws IOException {
         PackagePart part = getPackagePart();
-        OutputStream out = part.getOutputStream();
-        writeTo(out);
-        out.close();
+        try (OutputStream out = part.getOutputStream()) {
+            writeTo(out);
+        }
     }
 }
diff --git a/src/ooxml/java/org/apache/poi/xssf/streaming/SheetDataWriter.java b/src/ooxml/java/org/apache/poi/xssf/streaming/SheetDataWriter.java
index cae2aee0d1..f47c93ebf1 100644
--- a/src/ooxml/java/org/apache/poi/xssf/streaming/SheetDataWriter.java
+++ b/src/ooxml/java/org/apache/poi/xssf/streaming/SheetDataWriter.java
@@ -280,7 +280,7 @@ public class SheetDataWriter implements Closeable {
             case STRING: {
                 if (_sharedStringSource != null) {
                     XSSFRichTextString rt = new XSSFRichTextString(cell.getStringCellValue());
-                    int sRef = _sharedStringSource.addEntry(rt.getCTRst());
+                    int sRef = _sharedStringSource.addSharedStringItem(rt);
 
                     writeAttribute("t", STCellType.S.toString());
                     _out.write("><v>");