Clean up sEmpty

Change-Id: If1b2bfe308caa2bce92e73d2c5c86ee273faed93

58 files changed, 108 insertions, 164 deletions

diff --git a/connectivity/source/drivers/evoab2/NTables.cxx b/connectivity/source/drivers/evoab2/NTables.cxx
index fe20ab6914f7..dd18ee81670a 100644
--- a/connectivity/source/drivers/evoab2/NTables.cxx
+++ b/connectivity/source/drivers/evoab2/NTables.cxx
@@ -51,7 +51,6 @@ ObjectType OEvoabTables::createObject(const OUString& aName)
 
     Sequence< OUString > aTypes(1);
     aTypes[0] = "TABLE";
-    OUString sEmpty;
 
     Reference< XResultSet > xResult = m_xMetaData->getTables(Any(),aSchema,aName,aTypes);
 
@@ -67,7 +66,7 @@ ObjectType OEvoabTables::createObject(const OUString& aName)
                     aName,
                     xRow->getString(4),
                     xRow->getString(5),
-                    sEmpty);
+                    "");
                     xRet = pRet;
         }
     }
diff --git a/connectivity/source/drivers/kab/KTables.cxx b/connectivity/source/drivers/kab/KTables.cxx
index 7aa95c01f0ff..c74523af506e 100644
--- a/connectivity/source/drivers/kab/KTables.cxx
+++ b/connectivity/source/drivers/kab/KTables.cxx
@@ -43,7 +43,6 @@ sdbcx::ObjectType KabTables::createObject(const OUString& _rName)
 
     Sequence< OUString > aTypes(1);
     aTypes[0] = "%";
-    OUString sEmpty;
 
     Reference< XResultSet > xResult = m_xMetaData->getTables(Any(), aSchema, aName, aTypes);
 
@@ -59,7 +58,7 @@ sdbcx::ObjectType KabTables::createObject(const OUString& _rName)
                     aName,
                     xRow->getString(4),
                     xRow->getString(5),
-                    sEmpty);
+                    "");
             xRet = pRet;
         }
     }
diff --git a/connectivity/source/drivers/macab/MacabTables.cxx b/connectivity/source/drivers/macab/MacabTables.cxx
index 7a685f86201f..a33400249cea 100644
--- a/connectivity/source/drivers/macab/MacabTables.cxx
+++ b/connectivity/source/drivers/macab/MacabTables.cxx
@@ -43,7 +43,6 @@ sdbcx::ObjectType MacabTables::createObject(const OUString& _rName)
 
     Sequence< OUString > aTypes(1);
     aTypes[0] = "%";
-    OUString sEmpty;
 
     Reference< XResultSet > xResult = m_xMetaData->getTables(Any(), aSchema, aName, aTypes);
 
@@ -59,7 +58,7 @@ sdbcx::ObjectType MacabTables::createObject(const OUString& _rName)
                     aName,
                     xRow->getString(4),
                     xRow->getString(5),
-                    sEmpty);
+                    "");
             xRet = pRet;
         }
     }
diff --git a/cui/source/customize/macropg.cxx b/cui/source/customize/macropg.cxx
index 6f58102bbdc4..63381478222d 100644
--- a/cui/source/customize/macropg.cxx
+++ b/cui/source/customize/macropg.cxx
@@ -398,14 +398,13 @@ void _SvxMacroTabPage::Reset( const SfxItemSet* )
 
     try
     {
-            OUString sEmpty;
             if( m_xAppEvents.is() )
             {
                 EventsHash::iterator h_itEnd =  m_appEventsHash.end();
                 EventsHash::iterator h_it = m_appEventsHash.begin();
                 for ( ; h_it !=  h_itEnd; ++h_it )
                 {
-                    h_it->second.second = sEmpty;
+                    h_it->second.second.clear();
                 }
             }
             if( m_xDocEvents.is() && bDocModified )
@@ -414,7 +413,7 @@ void _SvxMacroTabPage::Reset( const SfxItemSet* )
                 EventsHash::iterator h_it = m_docEventsHash.begin();
                 for ( ; h_it !=  h_itEnd; ++h_it )
                 {
-                    h_it->second.second = sEmpty;
+                    h_it->second.second.clear();
                 }
                 // if we have a valid XModifiable (in the case of doc events)
                 // call setModified(true)
diff --git a/cui/source/options/optlingu.cxx b/cui/source/options/optlingu.cxx
index f404fa28fa4c..10cfb0c087fb 100644
--- a/cui/source/options/optlingu.cxx
+++ b/cui/source/options/optlingu.cxx
@@ -1805,13 +1805,12 @@ SvTreeListEntry* SvxLinguTabPage::CreateEntry( OUString& rTxt, sal_uInt16 nCol )
     if( !pCheckButtonData )
         pCheckButtonData = new SvLBoxButtonData(m_pLinguOptionsCLB);
 
-    OUString sEmpty;
     if (CBCOL_FIRST == nCol)
         pEntry->AddItem(std::unique_ptr<SvLBoxButton>(new SvLBoxButton(
             pEntry, SvLBoxButtonKind_enabledCheckbox, 0, pCheckButtonData)));
     if (CBCOL_SECOND == nCol)
         pEntry->AddItem(std::unique_ptr<SvLBoxString>(new SvLBoxString(
-            pEntry, 0, sEmpty)));    // empty column
+            pEntry, 0, "")));    // empty column
     pEntry->AddItem(std::unique_ptr<SvLBoxContextBmp>(new SvLBoxContextBmp(
             pEntry, 0, Image(), Image(), false)));
     pEntry->AddItem(std::unique_ptr<BrwString_Impl>(new BrwString_Impl(
@@ -1940,11 +1939,10 @@ SvTreeListEntry* SvxEditModulesDlg::CreateEntry( OUString& rTxt, sal_uInt16 nCol
         pCheckButtonData->SetLink( m_pModulesCLB->GetCheckButtonHdl() );
     }
 
-    OUString sEmpty;
     if (CBCOL_FIRST == nCol)
         pEntry->AddItem(std::unique_ptr<SvLBoxButton>(new SvLBoxButton(pEntry, SvLBoxButtonKind_enabledCheckbox, 0, pCheckButtonData)));
     if (CBCOL_SECOND == nCol)
-        pEntry->AddItem(std::unique_ptr<SvLBoxString>(new SvLBoxString(pEntry, 0, sEmpty)));    // empty column
+        pEntry->AddItem(std::unique_ptr<SvLBoxString>(new SvLBoxString(pEntry, 0, "")));    // empty column
     pEntry->AddItem(std::unique_ptr<SvLBoxContextBmp>(new SvLBoxContextBmp( pEntry, 0, Image(), Image(), false)));
     pEntry->AddItem(std::unique_ptr<BrwStringDic_Impl>(new BrwStringDic_Impl(pEntry, 0, rTxt)));
 
diff --git a/cui/source/tabpages/autocdlg.cxx b/cui/source/tabpages/autocdlg.cxx
index 7487c6d7523d..b5aa5bdc48de 100644
--- a/cui/source/tabpages/autocdlg.cxx
+++ b/cui/source/tabpages/autocdlg.cxx
@@ -477,14 +477,13 @@ SvTreeListEntry* OfaSwAutoFmtOptionsPage::CreateEntry(OUString& rTxt, sal_uInt16
     pEntry->AddItem(std::unique_ptr<SvLBoxContextBmp>(new SvLBoxContextBmp(
                     pEntry, 0, Image(), Image(), false)));
 
-    OUString sEmpty;
     if (nCol == CBCOL_SECOND)
-        pEntry->AddItem(std::unique_ptr<SvLBoxString>(new SvLBoxString(pEntry, 0, sEmpty)));
+        pEntry->AddItem(std::unique_ptr<SvLBoxString>(new SvLBoxString(pEntry, 0, "")));
     else
         pEntry->AddItem(std::unique_ptr<SvLBoxButton>(new SvLBoxButton(pEntry, SvLBoxButtonKind_enabledCheckbox, 0, pCheckButtonData)));
 
     if (nCol == CBCOL_FIRST)
-        pEntry->AddItem(std::unique_ptr<SvLBoxString>(new SvLBoxString(pEntry, 0, sEmpty)));
+        pEntry->AddItem(std::unique_ptr<SvLBoxString>(new SvLBoxString(pEntry, 0, "")));
     else
         pEntry->AddItem(std::unique_ptr<SvLBoxButton>(new SvLBoxButton(pEntry, SvLBoxButtonKind_enabledCheckbox, 0, pCheckButtonData)));
     pEntry->AddItem(std::unique_ptr<OfaImpBrwString>(new OfaImpBrwString( pEntry, 0, rTxt)));
@@ -1800,14 +1799,13 @@ SvTreeListEntry* OfaQuoteTabPage::CreateEntry(OUString& rTxt, sal_uInt16 nCol)
     pEntry->AddItem(std::unique_ptr<SvLBoxContextBmp>(
                 new SvLBoxContextBmp(pEntry, 0, Image(), Image(), false)));
 
-    OUString sEmpty;
     if (nCol == CBCOL_SECOND)
-        pEntry->AddItem(std::unique_ptr<SvLBoxString>(new SvLBoxString(pEntry, 0, sEmpty)));
+        pEntry->AddItem(std::unique_ptr<SvLBoxString>(new SvLBoxString(pEntry, 0, "")));
     else
         pEntry->AddItem(std::unique_ptr<SvLBoxButton>(new SvLBoxButton(pEntry, SvLBoxButtonKind_enabledCheckbox, 0, pCheckButtonData)));
 
     if (nCol == CBCOL_FIRST)
-        pEntry->AddItem(std::unique_ptr<SvLBoxString>(new SvLBoxString(pEntry, 0, sEmpty)));
+        pEntry->AddItem(std::unique_ptr<SvLBoxString>(new SvLBoxString(pEntry, 0, "")));
     else
         pEntry->AddItem(std::unique_ptr<SvLBoxButton>(new SvLBoxButton(
             pEntry, SvLBoxButtonKind_enabledCheckbox, 0, pCheckButtonData)));
diff --git a/dbaccess/source/core/api/KeySet.cxx b/dbaccess/source/core/api/KeySet.cxx
index 060f028ebd80..429ff3040cdf 100644
--- a/dbaccess/source/core/api/KeySet.cxx
+++ b/dbaccess/source/core/api/KeySet.cxx
@@ -549,8 +549,7 @@ void SAL_CALL OKeySet::updateRow(const ORowSetRow& _rInsertRow ,const ORowSetRow
         ::dbtools::throwSQLException( DBACORE_RESSTRING( RID_STR_NO_CONDITION_FOR_PK ), SQL_GENERAL_ERROR, m_xConnection );
 
     // now create end execute the prepared statement
-    OUString sEmpty;
-    executeUpdate(_rInsertRow ,_rOriginalRow,aSql.makeStringAndClear(),sEmpty,aIndexColumnPositions);
+    executeUpdate(_rInsertRow ,_rOriginalRow,aSql.makeStringAndClear(),"",aIndexColumnPositions);
 }
 
 void OKeySet::executeUpdate(const ORowSetRow& _rInsertRow ,const ORowSetRow& _rOriginalRow,const OUString& i_sSQL,const OUString& i_sTableName,const ::std::vector<sal_Int32>& _aIndexColumnPositions)
@@ -657,8 +656,7 @@ void SAL_CALL OKeySet::insertRow( const ORowSetRow& _rInsertRow,const connectivi
     aValues[aValues.getLength() - 1] = ')';
     aSql.append(aValues.makeStringAndClear());
     // now create,fill and execute the prepared statement
-    OUString sEmpty;
-    executeInsert(_rInsertRow,aSql.makeStringAndClear(),sEmpty,bRefetch);
+    executeInsert(_rInsertRow,aSql.makeStringAndClear(),"",bRefetch);
 }
 
 void OKeySet::executeInsert( const ORowSetRow& _rInsertRow,const OUString& i_sSQL,const OUString& i_sTableName,bool bRefetch )
diff --git a/dbaccess/source/core/api/SingleSelectQueryComposer.cxx b/dbaccess/source/core/api/SingleSelectQueryComposer.cxx
index e97ebf0cd1aa..c2a18e142569 100644
--- a/dbaccess/source/core/api/SingleSelectQueryComposer.cxx
+++ b/dbaccess/source/core/api/SingleSelectQueryComposer.cxx
@@ -1617,8 +1617,7 @@ void OSingleSelectQueryComposer::setConditionByColumn( const Reference< XPropert
 
             if ( nType != DataType::BOOLEAN && DataType::BIT != nType )
             {
-                OUString sEmpty;
-                lcl_addFilterCriteria_throw(filterOperator,sEmpty,aSQL);
+                lcl_addFilterCriteria_throw(filterOperator,"",aSQL);
             }
 
             switch(nType)
@@ -1690,8 +1689,7 @@ void OSingleSelectQueryComposer::setConditionByColumn( const Reference< XPropert
             sal_Int32 nFilterOp = filterOperator;
             if ( filterOperator != SQLFilterOperator::SQLNULL && filterOperator != SQLFilterOperator::NOT_SQLNULL )
                 nFilterOp = SQLFilterOperator::SQLNULL;
-            OUString sEmpty;
-            lcl_addFilterCriteria_throw(nFilterOp,sEmpty,aSQL);
+            lcl_addFilterCriteria_throw(nFilterOp,"",aSQL);
         }
 
         // Attach filter
diff --git a/dbaccess/source/ui/app/AppController.cxx b/dbaccess/source/ui/app/AppController.cxx
index d6f67c3b02ee..e2ac9570173d 100644
--- a/dbaccess/source/ui/app/AppController.cxx
+++ b/dbaccess/source/ui/app/AppController.cxx
@@ -1064,9 +1064,8 @@ void OApplicationController::Execute(sal_uInt16 _nId, const Sequence< PropertyVa
                         ::std::vector<SotClipboardFormatId> aFormatIds;
                         getSupportedFormats(getContainer()->getElementType(),aFormatIds);
                         const ::std::vector<SotClipboardFormatId>::iterator aEnd = aFormatIds.end();
-                        OUString sEmpty;
                         for (::std::vector<SotClipboardFormatId>::iterator aIter = aFormatIds.begin();aIter != aEnd; ++aIter)
-                            pDlg->Insert(*aIter,sEmpty);
+                            pDlg->Insert(*aIter,"");
 
                         const TransferableDataHelper& rClipboard = getViewClipboard();
                         pasteFormat(pDlg->GetFormat(rClipboard.GetTransferable()));
diff --git a/dbaccess/source/ui/browser/formadapter.cxx b/dbaccess/source/ui/browser/formadapter.cxx
index 87c8a5af1b21..43e481ed4e7e 100644
--- a/dbaccess/source/ui/browser/formadapter.cxx
+++ b/dbaccess/source/ui/browser/formadapter.cxx
@@ -142,9 +142,8 @@ void SbaXFormAdapter::StartListening()
     if (m_aPropertiesChangeListeners.getLength())
     {
         Reference< css::beans::XMultiPropertySet >  xBroadcaster(m_xMainForm, UNO_QUERY);
-        OUString sEmpty;
         if (xBroadcaster.is())
-            xBroadcaster->addPropertiesChangeListener(css::uno::Sequence<OUString>(&sEmpty, 1), &m_aPropertiesChangeListeners);
+            xBroadcaster->addPropertiesChangeListener(css::uno::Sequence<OUString>{""}, &m_aPropertiesChangeListeners);
     }
 
     // log off ourself
@@ -1257,9 +1256,8 @@ void SAL_CALL SbaXFormAdapter::addPropertiesChangeListener(const Sequence< OUStr
     if (m_aPropertiesChangeListeners.getLength() == 1)
     {
         Reference< css::beans::XMultiPropertySet >  xBroadcaster(m_xMainForm, UNO_QUERY);
-        OUString sEmpty;
         if (xBroadcaster.is())
-            xBroadcaster->addPropertiesChangeListener(Sequence< OUString>(&sEmpty, 1), &m_aPropertiesChangeListeners);
+            xBroadcaster->addPropertiesChangeListener(Sequence< OUString>{""}, &m_aPropertiesChangeListeners);
     }
 }
 
diff --git a/dbaccess/source/ui/querydesign/querydlg.cxx b/dbaccess/source/ui/querydesign/querydlg.cxx
index cb9dff43fee2..6d4d2ad386bd 100644
--- a/dbaccess/source/ui/querydesign/querydlg.cxx
+++ b/dbaccess/source/ui/querydesign/querydlg.cxx
@@ -204,8 +204,7 @@ IMPL_LINK( DlgQryJoin, LBChangeHdl, ListBox*, /*pListBox*/ )
                 m_pTableControl->lateInit();
                 m_pCBNatural->Check(false);
                 m_pTableControl->enableRelation(false);
-                OUString sEmpty;
-                m_pConnData->AppendConnLine(sEmpty,sEmpty);
+                m_pConnData->AppendConnLine("","");
                 m_pPB_OK->Enable(true);
             }
             break;
diff --git a/desktop/source/deployment/gui/dp_gui_updatedialog.cxx b/desktop/source/deployment/gui/dp_gui_updatedialog.cxx
index d6619adb2c40..0f8715c95bb5 100644
--- a/desktop/source/deployment/gui/dp_gui_updatedialog.cxx
+++ b/desktop/source/deployment/gui/dp_gui_updatedialog.cxx
@@ -929,14 +929,13 @@ void UpdateDialog::initDescription()
 
 void UpdateDialog::clearDescription()
 {
-    OUString sEmpty;
     m_pPublisherLabel->Hide();
     m_pPublisherLink->Hide();
-    m_pPublisherLink->SetText( sEmpty );
-    m_pPublisherLink->SetURL( sEmpty );
+    m_pPublisherLink->SetText( "" );
+    m_pPublisherLink->SetURL( "" );
     m_pReleaseNotesLabel->Hide();
     m_pReleaseNotesLink->Hide();
-    m_pReleaseNotesLink->SetURL( sEmpty );
+    m_pReleaseNotesLink->SetURL( "" );
     m_pDescriptions->SetText("");
 }
 
diff --git a/framework/source/uielement/langselectionmenucontroller.cxx b/framework/source/uielement/langselectionmenucontroller.cxx
index 5d89a000994f..6cb7728976f8 100644
--- a/framework/source/uielement/langselectionmenucontroller.cxx
+++ b/framework/source/uielement/langselectionmenucontroller.cxx
@@ -200,7 +200,6 @@ void LanguageSelectionMenuController::fillPopupMenu( Reference< css::awt::XPopup
 
     sal_Int16 nItemId = 1;  // in this control the item id is not important for executing the command
     const OUString sAsterisk("*");  // multiple languages in current selection
-    const OUString sEmpty;  // 'no language found' from language guessing
     const OUString sNone( SvtLanguageTable::GetLanguageString( LANGUAGE_NONE ));
     std::set< OUString >::const_iterator it;
     for (it = aLangItems.begin(); it != aLangItems.end(); ++it)
@@ -208,7 +207,7 @@ void LanguageSelectionMenuController::fillPopupMenu( Reference< css::awt::XPopup
         const OUString & rStr( *it );
         if (rStr != sNone &&
             rStr != sAsterisk &&
-            rStr != sEmpty)
+            !rStr.isEmpty()) // 'no language found' from language guessing
         {
             pPopupMenu->InsertItem( nItemId, rStr );
             aCmd = aCmd_Language;
diff --git a/framework/source/uielement/langselectionstatusbarcontroller.cxx b/framework/source/uielement/langselectionstatusbarcontroller.cxx
index 2f2ab7969604..ea8a10665b5a 100644
--- a/framework/source/uielement/langselectionstatusbarcontroller.cxx
+++ b/framework/source/uielement/langselectionstatusbarcontroller.cxx
@@ -149,7 +149,6 @@ throw (css::uno::RuntimeException, std::exception)
     // add first few entries to main menu
     sal_Int16 nItemId = static_cast< sal_Int16 >(MID_LANG_SEL_1);
     const OUString sAsterisk("*");  // multiple languages in current selection
-    const OUString sEmpty;  // 'no language found' from language guessing
     const OUString sNone( SvtLanguageTable::GetLanguageString( LANGUAGE_NONE ));
     std::map< sal_Int16, OUString > aLangMap;
     std::set< OUString >::const_iterator it;
@@ -158,7 +157,7 @@ throw (css::uno::RuntimeException, std::exception)
         const OUString & rStr( *it );
         if ( rStr != sNone &&
              rStr != sAsterisk &&
-             rStr != sEmpty)
+             !rStr.isEmpty()) // 'no language found' from language guessing
         {
             DBG_ASSERT( MID_LANG_SEL_1 <= nItemId && nItemId <= MID_LANG_SEL_9,
                     "nItemId outside of expected range!" );
@@ -186,7 +185,7 @@ throw (css::uno::RuntimeException, std::exception)
         const OUString & rStr( *it );
         if( rStr != sNone &&
             rStr != sAsterisk &&
-            rStr != sEmpty)
+            !rStr.isEmpty()) // 'no language found' from language guessing
         {
             DBG_ASSERT( MID_LANG_PARA_1 <= nItemId && nItemId <= MID_LANG_PARA_9,
                     "nItemId outside of expected range!" );
diff --git a/include/svtools/unoevent.hxx b/include/svtools/unoevent.hxx
index 1a4ce964ece7..5f15a43d5c34 100644
--- a/include/svtools/unoevent.hxx
+++ b/include/svtools/unoevent.hxx
@@ -73,8 +73,6 @@ class SVT_DLLPUBLIC SvBaseEventDescriptor : public cppu::WeakImplHelper2
     const OUString sServiceName;
 
 protected:
-    const OUString sEmpty;
-
     /// last element is 0, 0
     const SvEventDescription* mpSupportedMacroItems;
     sal_Int16 mnMacroItems;
diff --git a/include/xmloff/numehelp.hxx b/include/xmloff/numehelp.hxx
index 053772dfd3f3..81477e903707 100644
--- a/include/xmloff/numehelp.hxx
+++ b/include/xmloff/numehelp.hxx
@@ -67,7 +67,6 @@ class XMLOFF_DLLPUBLIC XMLNumberFormatAttributesExportHelper
 {
     ::com::sun::star::uno::Reference< ::com::sun::star::util::XNumberFormats > xNumberFormats;
     SvXMLExport*        pExport;
-    const OUString sEmpty;
     const OUString sStandardFormat;
     const OUString sType;
     const OUString sAttrValue;
diff --git a/include/xmloff/txtimp.hxx b/include/xmloff/txtimp.hxx
index ca0ce7ab7e5a..923514a2f939 100644
--- a/include/xmloff/txtimp.hxx
+++ b/include/xmloff/txtimp.hxx
@@ -709,7 +709,7 @@ public:
     /// get the last open redline ID
     OUString GetOpenRedlineId();
     /// modify the last open redline ID
-    void SetOpenRedlineId( OUString& rId);
+    void SetOpenRedlineId( OUString const & rId);
     /// reset the last open redline ID
     void ResetOpenRedlineId();
 
diff --git a/jvmfwk/source/elements.cxx b/jvmfwk/source/elements.cxx
index 901a4bdbd3f5..02730683a0b4 100644
--- a/jvmfwk/source/elements.cxx
+++ b/jvmfwk/source/elements.cxx
@@ -617,10 +617,9 @@ void NodeJava::setJavaInfo(const JavaInfo * pInfo, bool bAutoSelect)
     else
     {
         m_javaInfo->m_bEmptyNode = true;
-        OUString sEmpty;
-        m_javaInfo->sVendor = sEmpty;
-        m_javaInfo->sLocation = sEmpty;
-        m_javaInfo->sVersion = sEmpty;
+        m_javaInfo->sVendor.clear();
+        m_javaInfo->sLocation.clear();
+        m_javaInfo->sVersion.clear();
         m_javaInfo->nFeatures = 0;
         m_javaInfo->nRequirements = 0;
         m_javaInfo->arVendorData = rtl::ByteSequence();
diff --git a/reportdesign/source/filter/xml/xmlExport.cxx b/reportdesign/source/filter/xml/xmlExport.cxx
index 26c25515c06d..42c816cdaf17 100644
--- a/reportdesign/source/filter/xml/xmlExport.cxx
+++ b/reportdesign/source/filter/xml/xmlExport.cxx
@@ -835,7 +835,6 @@ void ORptExport::exportContainer(const Reference< XSection>& _xSection)
                         sal_Int32 nFormatKey = xFormattedField->getFormatKey();
                         XMLNumberFormatAttributesExportHelper aHelper(GetNumberFormatsSupplier(),*this);
                         bool bIsStandard = false;
-                        OUString sEmpty;
                         sal_Int16 nCellType = aHelper.GetCellType(nFormatKey,bIsStandard);
                         // "Standard" means "no format set, value could be anything",
                         // so don't set a format attribute in this case.
@@ -843,7 +842,7 @@ void ORptExport::exportContainer(const Reference< XSection>& _xSection)
                         if (!bIsStandard)
                         {
                             if ( nCellType == util::NumberFormat::TEXT )
-                                aHelper.SetNumberFormatAttributes(sEmpty, sEmpty);
+                                aHelper.SetNumberFormatAttributes("", "");
                             else
                                 aHelper.SetNumberFormatAttributes(nFormatKey, 0.0, false);
                         }
diff --git a/sc/source/core/data/table3.cxx b/sc/source/core/data/table3.cxx
index 0287e66b924a..0b292e60ec22 100644
--- a/sc/source/core/data/table3.cxx
+++ b/sc/source/core/data/table3.cxx
@@ -106,7 +106,7 @@ bool SplitString( const OUString &sWhole,
     i18n::LocaleDataItem aLocaleItem = ScGlobal::pLocaleData->getLocaleItem();
 
     // Get prefix element
-    OUString sEmpty, sUser = "-";
+    OUString sUser = "-";
     ParseResult aPRPre = ScGlobal::pCharClass->parsePredefinedToken(
         KParseType::IDENTNAME, sWhole, 0,
         KParseTokens::ANY_LETTER, sUser, KParseTokens::ANY_LETTER, sUser );
@@ -120,7 +120,7 @@ bool SplitString( const OUString &sWhole,
     sUser = aLocaleItem.decimalSeparator;
     ParseResult aPRNum = ScGlobal::pCharClass->parsePredefinedToken(
         KParseType::ANY_NUMBER, sWhole, aPRPre.EndPos,
-        KParseTokens::ANY_NUMBER, sEmpty, KParseTokens::ANY_NUMBER, sUser );
+        KParseTokens::ANY_NUMBER, "", KParseTokens::ANY_NUMBER, sUser );
 
     if ( aPRNum.EndPos == aPRPre.EndPos )
         return false;
diff --git a/sc/source/filter/xml/XMLTableHeaderFooterContext.cxx b/sc/source/filter/xml/XMLTableHeaderFooterContext.cxx
index f88bf6e516b2..7606526ceced 100644
--- a/sc/source/filter/xml/XMLTableHeaderFooterContext.cxx
+++ b/sc/source/filter/xml/XMLTableHeaderFooterContext.cxx
@@ -117,7 +117,7 @@ SvXMLImportContext *XMLTableHeaderFooterContext::CreateChildContext(
             if( xHeaderFooterContent.is() )
             {
                 uno::Reference < text::XText > xText(xHeaderFooterContent->getCenterText());
-                xText->setString(sEmpty);
+                xText->setString("");
                 xTextCursor.set(xText->createTextCursor());
                 xOldTextCursor.set(GetImport().GetTextImport()->GetCursor());
                 GetImport().GetTextImport()->SetCursor( xTextCursor );
@@ -154,7 +154,7 @@ SvXMLImportContext *XMLTableHeaderFooterContext::CreateChildContext(
                 }
                 if (xText.is())
                 {
-                    xText->setString(sEmpty);
+                    xText->setString("");
                     //SvXMLImport aSvXMLImport( GetImport() );
                     uno::Reference < text::XTextCursor > xTempTextCursor(xText->createTextCursor());
                     pContext = new XMLHeaderFooterRegionContext( GetImport(), nPrefix, rLocalName, xAttrList, xTempTextCursor);
@@ -176,7 +176,7 @@ void XMLTableHeaderFooterContext::EndElement()
         if( GetImport().GetTextImport()->GetCursor()->goLeft( 1, true ) )
         {
             GetImport().GetTextImport()->GetText()->insertString(
-                GetImport().GetTextImport()->GetCursorAsRange(), sEmpty,
+                GetImport().GetTextImport()->GetCursorAsRange(), "",
                 true );
         }
         GetImport().GetTextImport()->ResetCursor();
@@ -186,11 +186,11 @@ void XMLTableHeaderFooterContext::EndElement()
     if (xHeaderFooterContent.is())
     {
         if (!bContainsLeft)
-            xHeaderFooterContent->getLeftText()->setString(sEmpty);
+            xHeaderFooterContent->getLeftText()->setString("");
         if (!bContainsCenter)
-            xHeaderFooterContent->getCenterText()->setString(sEmpty);
+            xHeaderFooterContent->getCenterText()->setString("");
         if (!bContainsRight)
-            xHeaderFooterContent->getRightText()->setString(sEmpty);
+            xHeaderFooterContent->getRightText()->setString("");
 
         xPropSet->setPropertyValue( sCont, uno::makeAny(xHeaderFooterContent) );
     }
@@ -243,9 +243,8 @@ void XMLHeaderFooterRegionContext::EndElement()
         //GetImport().GetTextImport()->GetCursor()->gotoEnd(sal_False);
         if( GetImport().GetTextImport()->GetCursor()->goLeft( 1, true ) )
         {
-            OUString sEmpty;
             GetImport().GetTextImport()->GetText()->insertString(
-                GetImport().GetTextImport()->GetCursorAsRange(), sEmpty,
+                GetImport().GetTextImport()->GetCursorAsRange(), "",
                 true );
         }
         GetImport().GetTextImport()->ResetCursor();
diff --git a/sc/source/filter/xml/XMLTableHeaderFooterContext.hxx b/sc/source/filter/xml/XMLTableHeaderFooterContext.hxx
index abcc4687cecd..3f89046cf2e2 100644
--- a/sc/source/filter/xml/XMLTableHeaderFooterContext.hxx
+++ b/sc/source/filter/xml/XMLTableHeaderFooterContext.hxx
@@ -43,7 +43,6 @@ class XMLTableHeaderFooterContext: public SvXMLImportContext
     const OUString   sShareContent;
     const OUString   sContent;
     const OUString   sContentLeft;
-    const OUString   sEmpty;
     OUString           sCont;
 
     bool    bDisplay;
diff --git a/sc/source/filter/xml/XMLTrackedChangesContext.cxx b/sc/source/filter/xml/XMLTrackedChangesContext.cxx
index 1499f34d7afc..9bed201e5277 100644
--- a/sc/source/filter/xml/XMLTrackedChangesContext.cxx
+++ b/sc/source/filter/xml/XMLTrackedChangesContext.cxx
@@ -1218,9 +1218,8 @@ void ScXMLChangeCellContext::EndElement()
                 //GetImport().GetTextImport()->GetCursor()->gotoEnd(sal_False);
                 if( GetImport().GetTextImport()->GetCursor()->goLeft( 1, sal_True ) )
                 {
-                    OUString sEmpty;
                     GetImport().GetTextImport()->GetText()->insertString(
-                        GetImport().GetTextImport()->GetCursorAsRange(), sEmpty,
+                        GetImport().GetTextImport()->GetCursorAsRange(), "",
                         sal_True );
                 }
             }
diff --git a/sc/source/filter/xml/xmlimprt.cxx b/sc/source/filter/xml/xmlimprt.cxx
index 61953d7388c5..b92e56226288 100644
--- a/sc/source/filter/xml/xmlimprt.cxx
+++ b/sc/source/filter/xml/xmlimprt.cxx
@@ -2899,7 +2899,7 @@ void ScXMLImport::SetStyleToRange(const ScRange& rRange, const OUString* pStyleN
         if (pCurrency)
             sPrevCurrency = *pCurrency;
         else if (!sPrevCurrency.isEmpty())
-            sPrevCurrency = sEmpty;
+            sPrevCurrency.clear();
     }
     else if ((nCellType != nPrevCellType) ||
         ((pStyleName && !pStyleName->equals(sPrevStyleName)) ||
@@ -2912,11 +2912,11 @@ void ScXMLImport::SetStyleToRange(const ScRange& rRange, const OUString* pStyleN
         if (pStyleName)
             sPrevStyleName = *pStyleName;
         else if(!sPrevStyleName.isEmpty())
-            sPrevStyleName = sEmpty;
+            sPrevStyleName.clear();
         if (pCurrency)
             sPrevCurrency = *pCurrency;
         else if(!sPrevCurrency.isEmpty())
-            sPrevCurrency = sEmpty;
+            sPrevCurrency.clear();
     }
     table::CellRangeAddress aCellRange;
     aCellRange.StartColumn = rRange.aStart.Col();
@@ -2952,7 +2952,7 @@ ScMyStyleNumberFormats* ScXMLImport::GetStyleNumberFormats()
 void ScXMLImport::SetStylesToRangesFinished()
 {
     SetStyleToRanges();
-    sPrevStyleName = sEmpty;
+    sPrevStyleName.clear();
 }
 
 // XImporter
diff --git a/sc/source/filter/xml/xmlimprt.hxx b/sc/source/filter/xml/xmlimprt.hxx
index 413b78339038..ae5ffe1747f9 100644
--- a/sc/source/filter/xml/xmlimprt.hxx
+++ b/sc/source/filter/xml/xmlimprt.hxx
@@ -954,7 +954,6 @@ class ScXMLImport: public SvXMLImport, boost::noncopyable
 
     com::sun::star::uno::Reference <com::sun::star::sheet::XSheetCellRangeContainer> xSheetCellRanges;
 
-    OUString           sEmpty;
     OUString           sPrevStyleName;
     OUString           sPrevCurrency;
     sal_uInt32              nSolarMutexLocked;
diff --git a/sc/source/filter/xml/xmlstyli.cxx b/sc/source/filter/xml/xmlstyli.cxx
index 76056e1b3cec..0f9b7f26e7d5 100644
--- a/sc/source/filter/xml/xmlstyli.cxx
+++ b/sc/source/filter/xml/xmlstyli.cxx
@@ -1034,9 +1034,9 @@ void ScMasterPageContext::ClearContent(const OUString& rContent)
         uno::Reference < sheet::XHeaderFooterContent > xHeaderFooterContent(xPropSet->getPropertyValue( rContent ), uno::UNO_QUERY);
         if (xHeaderFooterContent.is())
         {
-            xHeaderFooterContent->getLeftText()->setString(sEmpty);
-            xHeaderFooterContent->getCenterText()->setString(sEmpty);
-            xHeaderFooterContent->getRightText()->setString(sEmpty);
+            xHeaderFooterContent->getLeftText()->setString("");
+            xHeaderFooterContent->getCenterText()->setString("");
+            xHeaderFooterContent->getRightText()->setString("");
             xPropSet->setPropertyValue( rContent, uno::makeAny(xHeaderFooterContent) );
         }
     }
diff --git a/sc/source/filter/xml/xmlstyli.hxx b/sc/source/filter/xml/xmlstyli.hxx
index 10bf52a3ae6d..ca856bdd6d05 100644
--- a/sc/source/filter/xml/xmlstyli.hxx
+++ b/sc/source/filter/xml/xmlstyli.hxx
@@ -218,7 +218,6 @@ namespace com { namespace sun { namespace star {
 class ScMasterPageContext : public XMLTextMasterPageContext
 {
     com::sun::star::uno::Reference<com::sun::star::beans::XPropertySet> xPropSet;
-    const OUString     sEmpty;
     bool                bContainsRightHeader;
     bool                bContainsRightFooter;
 
diff --git a/sc/source/filter/xml/xmlwrap.cxx b/sc/source/filter/xml/xmlwrap.cxx
index 4f96f25bb65d..77afa8384287 100644
--- a/sc/source/filter/xml/xmlwrap.cxx
+++ b/sc/source/filter/xml/xmlwrap.cxx
@@ -324,7 +324,6 @@ bool ScXMLImportWrapper::Import( sal_uInt8 nMode, ErrCode& rError )
     uno::Reference<xml::sax::XParser> xXMLParser = xml::sax::Parser::create(xContext);
 
     // get filter
-    OUString sEmpty;
     uno::Reference<frame::XModel> xModel = mrDocShell.GetModel();
 
     /** property map for export info set */
@@ -499,7 +498,7 @@ bool ScXMLImportWrapper::Import( sal_uInt8 nMode, ErrCode& rError )
                             xContext, xModel, xXMLParser, aParserInput,
                             bOasis ? OUString("com.sun.star.comp.Calc.XMLOasisSettingsImporter")
                                    : OUString("com.sun.star.comp.Calc.XMLSettingsImporter"),
-                            "settings.xml", sEmpty, aSettingsArgs, false);
+                            "settings.xml", "", aSettingsArgs, false);
 
         SAL_INFO( "sc.filter", "settings import end" );
     }
@@ -513,7 +512,7 @@ bool ScXMLImportWrapper::Import( sal_uInt8 nMode, ErrCode& rError )
             bOasis ? OUString("com.sun.star.comp.Calc.XMLOasisStylesImporter")
                    : OUString("com.sun.star.comp.Calc.XMLStylesImporter"),
             OUString("styles.xml"),
-            sEmpty, aStylesArgs, true);
+            "", aStylesArgs, true);
 
         SAL_INFO( "sc.filter", "styles import end" );
     }
diff --git a/sc/source/ui/miscdlgs/solveroptions.cxx b/sc/source/ui/miscdlgs/solveroptions.cxx
index b539260f396a..5593a071a56a 100644
--- a/sc/source/ui/miscdlgs/solveroptions.cxx
+++ b/sc/source/ui/miscdlgs/solveroptions.cxx
@@ -247,7 +247,6 @@ void ScSolverOptionsDialog::FillListBox()
     m_pLbSettings->SetUpdateMode(false);
     m_pLbSettings->Clear();
 
-    OUString sEmpty;
     if (!mpCheckButtonData)
         mpCheckButtonData = new SvLBoxButtonData(m_pLbSettings);
 
@@ -281,7 +280,7 @@ void ScSolverOptionsDialog::FillListBox()
             // value entry
             pEntry = new SvTreeListEntry;
             pEntry->AddItem(std::unique_ptr<SvLBoxString>(
-                new SvLBoxString(pEntry, 0, sEmpty))); // empty column
+                new SvLBoxString(pEntry, 0, ""))); // empty column
             pEntry->AddItem(std::unique_ptr<SvLBoxContextBmp>(
                 new SvLBoxContextBmp(pEntry, 0, Image(), Image(), false)));
             std::unique_ptr<ScSolverOptionsString> pItem(
diff --git a/sfx2/source/appl/newhelp.cxx b/sfx2/source/appl/newhelp.cxx
index b0da8b4d1cb4..f2106fc9d2ac 100644
--- a/sfx2/source/appl/newhelp.cxx
+++ b/sfx2/source/appl/newhelp.cxx
@@ -1194,13 +1194,12 @@ void BookmarksBox_Impl::dispose()
     // save bookmarks to configuration
     SvtHistoryOptions aHistOpt;
     aHistOpt.Clear( eHELPBOOKMARKS );
-    OUString sEmpty;
     sal_uInt16 nCount = GetEntryCount();
     for ( sal_uInt16 i = 0; i < nCount; ++i )
     {
         OUString aTitle = GetEntry(i);
         OUString* pURL = static_cast<OUString*>(GetEntryData(i));
-        aHistOpt.AppendItem(eHELPBOOKMARKS, *pURL, sEmpty, aTitle, sEmpty, boost::none);
+        aHistOpt.AppendItem(eHELPBOOKMARKS, *pURL, "", aTitle, "", boost::none);
         delete pURL;
     }
     ListBox::dispose();
diff --git a/sfx2/source/bastyp/sfxhtml.cxx b/sfx2/source/bastyp/sfxhtml.cxx
index 5b40bbab9121..266a23d0b8a9 100644
--- a/sfx2/source/bastyp/sfxhtml.cxx
+++ b/sfx2/source/bastyp/sfxhtml.cxx
@@ -118,7 +118,7 @@ bool SfxHTMLParser::ParseAreaOptions(ImageMap * pImageMap, const OUString& rBase
 
     sal_uInt16 nShape = IMAP_OBJ_RECTANGLE;
     std::vector<sal_uInt32> aCoords;
-    OUString aName, aHRef, aAlt, aTarget, sEmpty;
+    OUString aName, aHRef, aAlt, aTarget;
     bool bNoHRef = false;
     SvxMacroTableDtor aMacroTbl;
 
@@ -171,7 +171,7 @@ IMAPOBJ_SETEVENT:
                 if( !sTmp.isEmpty() )
                 {
                     sTmp = convertLineEnd(sTmp, GetSystemLineEnd());
-                    aMacroTbl.Insert( nEvent, SvxMacro( sTmp, sEmpty, eScrpType ));
+                    aMacroTbl.Insert( nEvent, SvxMacro( sTmp, "", eScrpType ));
                 }
             }
             break;
diff --git a/svtools/source/uno/unoevent.cxx b/svtools/source/uno/unoevent.cxx
index cb113b11cbc2..842a07331cfd 100644
--- a/svtools/source/uno/unoevent.cxx
+++ b/svtools/source/uno/unoevent.cxx
@@ -50,7 +50,6 @@ SvBaseEventDescriptor::SvBaseEventDescriptor( const SvEventDescription* pSupport
         sScript("Script"),
         sNone("None"),
         sServiceName(sAPI_ServiceName),
-        sEmpty(),
         mpSupportedMacroItems(pSupportedMacroItems),
         mnMacroItems(0)
 {
@@ -86,7 +85,7 @@ void SvBaseEventDescriptor::replaceByName(
     rElement >>= aSequence;
 
     // perform replace (in subclass)
-    SvxMacro aMacro(sEmpty,sEmpty);
+    SvxMacro aMacro("","");
     getMacroFromAny(aMacro, rElement);
     replaceByName(nMacroID, aMacro);
 }
@@ -106,7 +105,7 @@ Any SvBaseEventDescriptor::getByName(
 
     // perform get (in subclass)
     Any aAny;
-    SvxMacro aMacro( sEmpty, sEmpty );
+    SvxMacro aMacro( "", "" );
     getByName(aMacro, nMacroID);
     getAnyFromMacro(aAny, aMacro);
     return aAny;
@@ -338,7 +337,7 @@ void SvBaseEventDescriptor::getMacroFromAny(
         if (bNone)
         {
             // return empty macro
-            rMacro = SvxMacro( sEmpty, sEmpty );
+            rMacro = SvxMacro( "", "" );
         }
         else
         {
@@ -411,7 +410,7 @@ void SvEventDescriptor::getByName(
         rMacro = rItem.GetMacro(nEvent);
     else
     {
-        SvxMacro aEmptyMacro(sEmpty, sEmpty);
+        SvxMacro aEmptyMacro("", "");
         rMacro = aEmptyMacro;
     }
 }
@@ -547,7 +546,7 @@ void SvMacroTableEventDescriptor::copyMacrosIntoTable(
         const sal_uInt16 nEvent = mpSupportedMacroItems[i].mnEvent;
         if (hasById(nEvent))
         {
-            SvxMacro& rMacro = rMacroTable.Insert(nEvent, SvxMacro(sEmpty, sEmpty));
+            SvxMacro& rMacro = rMacroTable.Insert(nEvent, SvxMacro("", ""));
             getByName(rMacro, nEvent);
         }
     }
diff --git a/svx/source/sidebar/nbdtmg.cxx b/svx/source/sidebar/nbdtmg.cxx
index 13006279d21f..d4d647f08cc8 100644
--- a/svx/source/sidebar/nbdtmg.cxx
+++ b/svx/source/sidebar/nbdtmg.cxx
@@ -645,7 +645,7 @@ bool GraphyicBulletsTypeMgr::RelplaceNumRule(SvxNumRule& aNum, sal_uInt16 nIndex
         GrfBulDataRelation* pEntry = aGrfDataLst[nIndex];
         if ( !aGrfName.isEmpty() )
             pEntry->sGrfName = aGrfName;
-        //pEntry->sDescription = sEmpty;
+        //pEntry->sDescription.clear();
         pEntry->nGallaryIndex = (sal_uInt16)0xFFFF;
         pEntry->bIsCustomized = true;
         OUString aStrFromRES = SVX_RESSTR( RID_SVXSTR_NUMBULLET_CUSTOM_BULLET_DESCRIPTION);
diff --git a/sw/source/core/edit/edtox.cxx b/sw/source/core/edit/edtox.cxx
index 8d596e8df064..16385174285c 100644
--- a/sw/source/core/edit/edtox.cxx
+++ b/sw/source/core/edit/edtox.cxx
@@ -314,10 +314,9 @@ void SwEditShell::ApplyAutoMark()
 
         sal_Int32 nSrchFlags = SearchFlags::LEV_RELAXED;
 
-        OUString sEmpty;
         SearchOptions aSearchOpt(
                             SearchAlgorithms_ABSOLUTE, nSrchFlags,
-                            sEmpty, sEmpty,
+                            "", "",
                             SvtSysLocale().GetLanguageTag().getLocale(),
                             nLEV_Other, nLEV_Longer, nLEV_Shorter,
                             nTransliterationFlags );
diff --git a/sw/source/core/unocore/unoevent.cxx b/sw/source/core/unocore/unoevent.cxx
index aed1588a97d1..791cad3e7556 100644
--- a/sw/source/core/unocore/unoevent.cxx
+++ b/sw/source/core/unocore/unoevent.cxx
@@ -136,7 +136,7 @@ void SwHyperlinkEventDescriptor::copyMacrosIntoINetFormat(
         const sal_uInt16 nEvent = mpSupportedMacroItems[i].mnEvent;
         if (hasById(nEvent))
         {
-            SvxMacro aMacro(sEmpty, sEmpty);
+            SvxMacro aMacro("", "");
             getByName(aMacro, nEvent);
             aFormat.SetMacro(nEvent, aMacro);
         }
diff --git a/sw/source/uibase/uiview/view2.cxx b/sw/source/uibase/uiview/view2.cxx
index a85fbf96ac82..a050e583a94d 100644
--- a/sw/source/uibase/uiview/view2.cxx
+++ b/sw/source/uibase/uiview/view2.cxx
@@ -2073,8 +2073,7 @@ void SwView::ExecuteInsertDoc( SfxRequest& rRequest, const SfxPoolItem* pItem )
 
     if ( !pItem )
     {
-        OUString sEmpty;
-        InsertDoc( nSlot, sEmpty, sEmpty );
+        InsertDoc( nSlot, "", "" );
     }
     else
     {
diff --git a/unotools/source/config/dynamicmenuoptions.cxx b/unotools/source/config/dynamicmenuoptions.cxx
index c8ba910f9710..c16b8a291bad 100644
--- a/unotools/source/config/dynamicmenuoptions.cxx
+++ b/unotools/source/config/dynamicmenuoptions.cxx
@@ -99,7 +99,7 @@ class SvtDynMenu
         //           The while-loop starts with pointer on internal member list lSetupEntries, change to
         //           lUserEntries then and stop after that with NULL!
         //           Separator entries will be packed in another way then normal entries! We define
-        //           special strings "sEmpty" and "sSeparator" to perform too ...
+        //           special string "sSeparator" to perform too ...
         Sequence< Sequence< PropertyValue > > GetList() const
         {
             sal_Int32                             nSetupCount = (sal_Int32)lSetupEntries.size();
@@ -108,7 +108,6 @@ class SvtDynMenu
             Sequence< PropertyValue >             lProperties ( PROPERTYCOUNT );
             Sequence< Sequence< PropertyValue > > lResult     ( nSetupCount+nUserCount );
             OUString                              sSeparator  ( "private:separator" );
-            OUString                              sEmpty;
             const vector< SvtDynMenuEntry >*            pList       = &lSetupEntries;
 
             lProperties[OFFSET_URL            ].Name = PROPERTYNAME_URL;
@@ -125,9 +124,9 @@ class SvtDynMenu
                     if( pItem->sURL == sSeparator )
                     {
                         lProperties[OFFSET_URL              ].Value <<= sSeparator;
-                        lProperties[OFFSET_TITLE            ].Value <<= sEmpty;
-                        lProperties[OFFSET_IMAGEIDENTIFIER  ].Value <<= sEmpty;
-                        lProperties[OFFSET_TARGETNAME       ].Value <<= sEmpty;
+                        lProperties[OFFSET_TITLE            ].Value <<= OUString();
+                        lProperties[OFFSET_IMAGEIDENTIFIER  ].Value <<= OUString();
+                        lProperties[OFFSET_TARGETNAME       ].Value <<= OUString();
                     }
                     else
                     {
diff --git a/vbahelper/source/msforms/vbacontrol.cxx b/vbahelper/source/msforms/vbacontrol.cxx
index 84f9852542bd..910829b67f7a 100644
--- a/vbahelper/source/msforms/vbacontrol.cxx
+++ b/vbahelper/source/msforms/vbacontrol.cxx
@@ -318,7 +318,6 @@ ScVbaControl::getControlSource() throw (uno::RuntimeException, std::exception)
 void SAL_CALL
 ScVbaControl::setControlSource( const OUString& _controlsource ) throw (uno::RuntimeException, std::exception)
 {
-    OUString sEmpty;
     // afaik this is only relevant for Excel documents ( and we need to set up a
     // reference tab in case no Sheet is specified in "_controlsource"
     // Can't use the active sheet either, code may of course access
@@ -352,7 +351,7 @@ ScVbaControl::setControlSource( const OUString& _controlsource ) throw (uno::Run
             break;
     }
 
-    svt::BindableControlHelper::ApplyListSourceAndBindableData( m_xModel, m_xProps, _controlsource, sEmpty, sal_uInt16( nRefTab ) );
+    svt::BindableControlHelper::ApplyListSourceAndBindableData( m_xModel, m_xProps, _controlsource, "", sal_uInt16( nRefTab ) );
 }
 
 OUString SAL_CALL
@@ -383,8 +382,7 @@ ScVbaControl::getRowSource() throw (uno::RuntimeException, std::exception)
 void SAL_CALL
 ScVbaControl::setRowSource( const OUString& _rowsource ) throw (uno::RuntimeException, std::exception)
 {
-    OUString sEmpty;
-    svt::BindableControlHelper::ApplyListSourceAndBindableData( m_xModel, m_xProps, sEmpty, _rowsource );
+    svt::BindableControlHelper::ApplyListSourceAndBindableData( m_xModel, m_xProps, "", _rowsource );
 }
 
 OUString SAL_CALL
diff --git a/xmloff/inc/txtflde.hxx b/xmloff/inc/txtflde.hxx
index 7bbaa791470c..6178b190a165 100644
--- a/xmloff/inc/txtflde.hxx
+++ b/xmloff/inc/txtflde.hxx
@@ -518,8 +518,6 @@ private:
     const OUString sPropertyTooltip;
     const OUString sPropertyTextRange;
 
-    const OUString sEmpty;
-
     XMLPropertyState* pCombinedCharactersPropertyState;
 
 };
diff --git a/xmloff/source/core/DocumentSettingsContext.cxx b/xmloff/source/core/DocumentSettingsContext.cxx
index 8dc14efc0d63..fc71a98efc85 100644
--- a/xmloff/source/core/DocumentSettingsContext.cxx
+++ b/xmloff/source/core/DocumentSettingsContext.cxx
@@ -405,8 +405,7 @@ void XMLDocumentSettingsContext::EndElement()
 
                 if ( sProp == "PrinterName" )
                 {
-                    OUString sEmpty;
-                    aSeqConfigProps[i].Value = uno::makeAny( sEmpty );
+                    aSeqConfigProps[i].Value = uno::makeAny( OUString() );
                     nFound++;
                 }
                 else if ( sProp == "PrinterSetup" )
diff --git a/xmloff/source/core/SettingsExportHelper.cxx b/xmloff/source/core/SettingsExportHelper.cxx
index 3c4edf5047c2..5bba8272628c 100644
--- a/xmloff/source/core/SettingsExportHelper.cxx
+++ b/xmloff/source/core/SettingsExportHelper.cxx
@@ -402,7 +402,6 @@ void XMLSettingsExportHelper::exportIndexAccess(
     DBG_ASSERT(!rName.isEmpty(), "no name");
     DBG_ASSERT(rIndexed->getElementType().equals(cppu::UnoType<uno::Sequence<beans::PropertyValue>>::get() ),
                 "wrong IndexAccess" );
-    OUString sEmpty;
     if (rIndexed->hasElements())
     {
         m_rContext.AddAttribute( XML_NAME, rName );
@@ -410,7 +409,7 @@ void XMLSettingsExportHelper::exportIndexAccess(
         sal_Int32 nCount = rIndexed->getCount();
         for (sal_Int32 i = 0; i < nCount; i++)
         {
-            exportMapEntry(rIndexed->getByIndex(i), sEmpty, false);
+            exportMapEntry(rIndexed->getByIndex(i), "", false);
         }
         m_rContext.EndElement( true );
     }
diff --git a/xmloff/source/core/nmspmap.cxx b/xmloff/source/core/nmspmap.cxx
index b355f038e9b7..c05fd934d954 100644
--- a/xmloff/source/core/nmspmap.cxx
+++ b/xmloff/source/core/nmspmap.cxx
@@ -301,7 +301,7 @@ sal_uInt16 SvXMLNamespaceMap::_GetKeyByAttrName( const OUString& rAttrName,
         if ( pNamespace )
         {
             NameSpaceMap::const_iterator aMapIter = aNameMap.find (nKey);
-            *pNamespace = aMapIter != aNameMap.end() ? (*aMapIter).second->sName : sEmpty;
+            *pNamespace = aMapIter != aNameMap.end() ? (*aMapIter).second->sName : OUString();
         }
     }
     else
diff --git a/xmloff/source/core/xmlerror.cxx b/xmloff/source/core/xmlerror.cxx
index feb4ac0bdfe7..cd6d9e93205e 100644
--- a/xmloff/source/core/xmlerror.cxx
+++ b/xmloff/source/core/xmlerror.cxx
@@ -196,9 +196,8 @@ void XMLErrors::AddRecord(
     }
     else
     {
-        OUString sEmpty;
         AddRecord( nId, rParams, rExceptionMessage,
-                   -1, -1, sEmpty, sEmpty );
+                   -1, -1, "", "" );
     }
 }
 
diff --git a/xmloff/source/core/xmlexp.cxx b/xmloff/source/core/xmlexp.cxx
index 61c1c280a9a2..91f73b73e72e 100644
--- a/xmloff/source/core/xmlexp.cxx
+++ b/xmloff/source/core/xmlexp.cxx
@@ -2390,8 +2390,7 @@ void SvXMLExport::SetError(
     sal_Int32 nId,
     const Sequence<OUString>& rMsgParams)
 {
-    OUString sEmpty;
-    SetError( nId, rMsgParams, sEmpty, NULL );
+    SetError( nId, rMsgParams, "", NULL );
 }
 
 void SvXMLExport::DisposingModel()
diff --git a/xmloff/source/core/xmlimp.cxx b/xmloff/source/core/xmlimp.cxx
index 272505b0c06c..9108fc760ab0 100644
--- a/xmloff/source/core/xmlimp.cxx
+++ b/xmloff/source/core/xmlimp.cxx
@@ -1796,8 +1796,7 @@ void SvXMLImport::SetError(
     sal_Int32 nId,
     const Sequence<OUString>& rMsgParams)
 {
-    OUString sEmpty;
-    SetError( nId, rMsgParams, sEmpty, NULL );
+    SetError( nId, rMsgParams, "", NULL );
 }
 
 void SvXMLImport::SetError(
diff --git a/xmloff/source/style/XMLFontStylesContext.cxx b/xmloff/source/style/XMLFontStylesContext.cxx
index 373e116bf9a8..0efac45022cc 100644
--- a/xmloff/source/style/XMLFontStylesContext.cxx
+++ b/xmloff/source/style/XMLFontStylesContext.cxx
@@ -90,9 +90,8 @@ XMLFontStyleContextFontFace::XMLFontStyleContextFontFace( SvXMLImport& rImport,
     SvXMLStyleContext( rImport, nPrfx, rLName, xAttrList, XML_STYLE_FAMILY_FONT ),
     xStyles( &rStyles )
 {
-    OUString sEmpty;
-    aFamilyName <<= sEmpty;
-    aStyleName <<= sEmpty;
+    aFamilyName <<= OUString();
+    aStyleName <<= OUString();
     aFamily <<= (sal_Int16)awt::FontFamily::DONTKNOW;
     aPitch <<= (sal_Int16)awt::FontPitch::DONTKNOW;
     aEnc <<= (sal_Int16)rStyles.GetDfltCharset();
diff --git a/xmloff/source/style/numehelp.cxx b/xmloff/source/style/numehelp.cxx
index 4a8de1db6e2d..def5eec8db00 100644
--- a/xmloff/source/style/numehelp.cxx
+++ b/xmloff/source/style/numehelp.cxx
@@ -78,7 +78,7 @@ XMLNumberFormatAttributesExportHelper::~XMLNumberFormatAttributesExportHelper()
 
 sal_Int16 XMLNumberFormatAttributesExportHelper::GetCellType(const sal_Int32 nNumberFormat, OUString& sCurrency, bool& bIsStandard)
 {
-    XMLNumberFormat aFormat(sEmpty, nNumberFormat, 0);
+    XMLNumberFormat aFormat("", nNumberFormat, 0);
     XMLNumberFormatSet::iterator aItr(aNumberFormats.find(aFormat));
     XMLNumberFormatSet::iterator aEndItr(aNumberFormats.end());
     if (aItr != aEndItr)
diff --git a/xmloff/source/style/xmlaustp.cxx b/xmloff/source/style/xmlaustp.cxx
index d1ff59d97934..46d2d47d4af0 100644
--- a/xmloff/source/style/xmlaustp.cxx
+++ b/xmloff/source/style/xmlaustp.cxx
@@ -335,9 +335,8 @@ void SvXMLAutoStylePoolP::RegisterNames(
 OUString SvXMLAutoStylePoolP::Add( sal_Int32 nFamily,
                                   const vector< XMLPropertyState >& rProperties )
 {
-    OUString sEmpty;
     OUString sName;
-    pImpl->Add(sName, nFamily, sEmpty, rProperties );
+    pImpl->Add(sName, nFamily, "", rProperties );
     return sName;
 }
 
diff --git a/xmloff/source/style/xmlnumfe.cxx b/xmloff/source/style/xmlnumfe.cxx
index 9730adb00076..767c7eb47a06 100644
--- a/xmloff/source/style/xmlnumfe.cxx
+++ b/xmloff/source/style/xmlnumfe.cxx
@@ -853,8 +853,7 @@ bool SvXMLNumFmtExport::WriteTextWithCurrency_Impl( const OUString& rString,
             AddToTextElement_Impl( rString.copy( 0, nPos ) );
         }
         //  currency symbol (empty string -> default)
-        OUString sEmpty;
-        WriteCurrencyElement_Impl( sEmpty, sEmpty );
+        WriteCurrencyElement_Impl( "", "" );
         bRet = true;
 
         //  text after currency symbol
diff --git a/xmloff/source/text/XMLIndexTOCContext.cxx b/xmloff/source/text/XMLIndexTOCContext.cxx
index 899252078adb..bce9924d6946 100644
--- a/xmloff/source/text/XMLIndexTOCContext.cxx
+++ b/xmloff/source/text/XMLIndexTOCContext.cxx
@@ -262,7 +262,6 @@ void XMLIndexTOCContext::EndElement()
     if( bValid )
     {
         // preliminaries
-        OUString sEmpty;
         rtl::Reference<XMLTextImportHelper> rHelper= GetImport().GetTextImport();
 
         // get rid of last paragraph (unless it's the only paragraph)
@@ -272,13 +271,13 @@ void XMLIndexTOCContext::EndElement()
         {
             rHelper->GetCursor()->goLeft(1, sal_True);
             rHelper->GetText()->insertString(rHelper->GetCursorAsRange(),
-                                             sEmpty, sal_True);
+                                             "", sal_True);
         }
 
         // and delete second marker
         rHelper->GetCursor()->goRight(1, sal_True);
         rHelper->GetText()->insertString(rHelper->GetCursorAsRange(),
-                                         sEmpty, sal_True);
+                                         "", sal_True);
 
         // check for Redlines on our end node
         GetImport().GetTextImport()->RedlineAdjustStartNodeCursor(false);
diff --git a/xmloff/source/text/XMLSectionExport.cxx b/xmloff/source/text/XMLSectionExport.cxx
index ba6fd6bdd881..0c3201d9af83 100644
--- a/xmloff/source/text/XMLSectionExport.cxx
+++ b/xmloff/source/text/XMLSectionExport.cxx
@@ -158,7 +158,7 @@ void XMLSectionExport::ExportSectionStart(
         GetExport().AddAttribute(XML_NAMESPACE_TEXT, XML_STYLE_NAME,
                                      GetParaExport().Find(
                                      XML_STYLE_FAMILY_TEXT_SECTION,
-                                     xPropertySet, sEmpty ) );
+                                     xPropertySet, "" ) );
 
         // xml:id for RDF metadata
         GetExport().AddAttributeXmlId(rSection);
diff --git a/xmloff/source/text/XMLSectionExport.hxx b/xmloff/source/text/XMLSectionExport.hxx
index 9163ef2927f8..5a4d47bba2f7 100644
--- a/xmloff/source/text/XMLSectionExport.hxx
+++ b/xmloff/source/text/XMLSectionExport.hxx
@@ -130,8 +130,6 @@ class XMLSectionExport
     const OUString sIsCurrentlyVisible;
     const OUString sHeadingStyleName;
 
-    const OUString sEmpty;
-
     SvXMLExport& rExport;
     XMLTextParagraphExport& rParaExport;
 
diff --git a/xmloff/source/text/XMLSectionImportContext.cxx b/xmloff/source/text/XMLSectionImportContext.cxx
index 2574fce93dc5..7bc8c1c33eb5 100644
--- a/xmloff/source/text/XMLSectionImportContext.cxx
+++ b/xmloff/source/text/XMLSectionImportContext.cxx
@@ -234,7 +234,7 @@ void XMLSectionImportContext::StartElement(
 
                 // and delete first marker (in section)
                 rHelper->GetText()->insertString(
-                    rHelper->GetCursorAsRange(), sEmpty, sal_True);
+                    rHelper->GetCursorAsRange(), "", sal_True);
 
                 // finally, check for redlines that should start at
                 // the section start node
@@ -339,13 +339,13 @@ void XMLSectionImportContext::EndElement()
     {
         rHelper->GetCursor()->goLeft(1, sal_True);
         rHelper->GetText()->insertString(rHelper->GetCursorAsRange(),
-                                         sEmpty, sal_True);
+                                         "", sal_True);
     }
 
     // and delete second marker
     rHelper->GetCursor()->goRight(1, sal_True);
     rHelper->GetText()->insertString(rHelper->GetCursorAsRange(),
-                                     sEmpty, sal_True);
+                                     "", sal_True);
 
     // check for redlines to our endnode
     rHelper->RedlineAdjustStartNodeCursor(false);
diff --git a/xmloff/source/text/XMLSectionImportContext.hxx b/xmloff/source/text/XMLSectionImportContext.hxx
index 7b4ab86042fc..4f14b80c7b69 100644
--- a/xmloff/source/text/XMLSectionImportContext.hxx
+++ b/xmloff/source/text/XMLSectionImportContext.hxx
@@ -58,7 +58,6 @@ class XMLSectionImportContext : public SvXMLImportContext
     const OUString sProtectionKey;
     const OUString sIsProtected;
     const OUString sIsCurrentlyVisible;
-    const OUString sEmpty;
 
     OUString sXmlId;
     OUString sStyleName;
diff --git a/xmloff/source/text/txtflde.cxx b/xmloff/source/text/txtflde.cxx
index c20f22682603..5c7513906b30 100644
--- a/xmloff/source/text/txtflde.cxx
+++ b/xmloff/source/text/txtflde.cxx
@@ -1127,7 +1127,7 @@ void XMLTextFieldExport::ExportFieldHelper(
         // show style, unless name will be shown
         ProcessValueAndType(IsStringField(nToken, rPropSet),
                             GetIntProperty(sPropertyNumberFormat, rPropSet),
-                            sEmpty, sEmpty, 0.0, // values not used
+                            "", "", 0.0, // values not used
                             false,
                             bExportValueType,
                             !bCmd,
@@ -1168,7 +1168,7 @@ void XMLTextFieldExport::ExportFieldHelper(
                        bCmd);
         ProcessValueAndType(IsStringField(nToken, rPropSet),
                             GetIntProperty(sPropertyNumberFormat, rPropSet),
-                            sEmpty, sEmpty, 0.0, // values not used
+                            "", "", 0.0, // values not used
                             false, false, !bCmd,
                             ! GetOptionalBoolProperty(
                                  sPropertyIsFixedLanguage,
@@ -1251,7 +1251,7 @@ void XMLTextFieldExport::ExportFieldHelper(
         {
             ProcessValueAndType(false,
                                 GetIntProperty(sPropertyNumberFormat,rPropSet),
-                                sEmpty, sEmpty, 0.0, // not used
+                                "", "", 0.0, // not used
                                 false, false, true,
                                 ! GetOptionalBoolProperty(
                                     sPropertyIsFixedLanguage,
@@ -1293,7 +1293,7 @@ void XMLTextFieldExport::ExportFieldHelper(
         {
             ProcessValueAndType(false,
                                 GetIntProperty(sPropertyNumberFormat,rPropSet),
-                                sEmpty, sEmpty, 0.0, // not used
+                                "", "", 0.0, // not used
                                 false, false, true,
                                 ! GetOptionalBoolProperty(
                                     sPropertyIsFixedLanguage,
@@ -1398,7 +1398,7 @@ void XMLTextFieldExport::ExportFieldHelper(
         ProcessCommandType(GetIntProperty(sPropertyDataCommandType, rPropSet));
         ProcessString(XML_CONDITION, XML_NAMESPACE_OOOW,
                       GetStringProperty(sPropertyCondition, rPropSet));
-        DBG_ASSERT(sPresentation.equals(sEmpty),
+        DBG_ASSERT(sPresentation.isEmpty(),
                    "Unexpected presentation for database next field");
         ExportDataBaseElement(XML_DATABASE_NEXT, OUString(),
                               rPropSet, xPropSetInfo);
@@ -1412,7 +1412,7 @@ void XMLTextFieldExport::ExportFieldHelper(
                       GetStringProperty(sPropertyCondition, rPropSet));
         ProcessInteger(XML_ROW_NUMBER,
                        GetIntProperty(sPropertySetNumber, rPropSet));
-        DBG_ASSERT(sPresentation.equals(sEmpty),
+        DBG_ASSERT(sPresentation.isEmpty(),
                    "Unexpected presentation for database select field");
         ExportDataBaseElement(XML_DATABASE_ROW_SELECT, OUString(),
                               rPropSet, xPropSetInfo);
@@ -1432,7 +1432,7 @@ void XMLTextFieldExport::ExportFieldHelper(
         {
             ProcessValueAndType(false,  // doesn't happen for text
                                 GetIntProperty(sPropertyNumberFormat,rPropSet),
-                                sEmpty, sEmpty, 0.0, // not used
+                                "", "", 0.0, // not used
                                 false, false, true, false);
         }
         ProcessDisplay(GetBoolProperty(sPropertyIsVisible, rPropSet),
@@ -1457,7 +1457,7 @@ void XMLTextFieldExport::ExportFieldHelper(
     case FIELD_ID_DOCINFO_PRINT_DATE:
         ProcessValueAndType(false,
                             GetIntProperty(sPropertyNumberFormat, rPropSet),
-                            sEmpty, sEmpty, 0.0,
+                            "", "", 0.0,
                             false, false, true,
                             ! GetOptionalBoolProperty(
                                     sPropertyIsFixedLanguage,
@@ -1488,7 +1488,7 @@ void XMLTextFieldExport::ExportFieldHelper(
     {
         ProcessValueAndType(false,  // doesn't happen for text
                                 GetIntProperty(sPropertyNumberFormat,rPropSet),
-                                sEmpty, sEmpty, 0.0, // not used
+                                "", "", 0.0, // not used
                                 false, false, true,
                                 ! GetOptionalBoolProperty(
                                     sPropertyIsFixedLanguage,
@@ -1549,7 +1549,7 @@ void XMLTextFieldExport::ExportFieldHelper(
         ProcessBoolean(XML_IS_HIDDEN,
                        GetBoolProperty(sPropertyIsHidden, rPropSet),
                        false);
-        DBG_ASSERT(sPresentation.equals(sEmpty),
+        DBG_ASSERT(sPresentation.isEmpty(),
                    "Unexpected presentation for hidden paragraph field");
         ExportElement(XML_HIDDEN_PARAGRAPH);
         break;
@@ -1593,7 +1593,7 @@ void XMLTextFieldExport::ExportFieldHelper(
                        GetBoolProperty(sPropertyOn, rPropSet), true);
         ProcessIntegerDef(XML_PAGE_ADJUST,
                        GetInt16Property(sPropertyOffset, rPropSet), 0);
-        DBG_ASSERT(sPresentation.equals(sEmpty),
+        DBG_ASSERT(sPresentation.isEmpty(),
                    "Unexpected presentation page variable field");
         ExportElement(XML_PAGE_VARIABLE_SET);
         break;
@@ -1709,7 +1709,7 @@ void XMLTextFieldExport::ExportFieldHelper(
         ProcessString(XML_LANGUAGE,
                       GetStringProperty(sPropertyScriptType, rPropSet),
                       true, XML_NAMESPACE_SCRIPT);
-        DBG_ASSERT(sPresentation.equals(sEmpty),
+        DBG_ASSERT(sPresentation.isEmpty(),
                    "Unexpected presentation for script field");
         if (GetBoolProperty(sPropertyURLContent, rPropSet))
         {
@@ -1728,7 +1728,7 @@ void XMLTextFieldExport::ExportFieldHelper(
     case FIELD_ID_ANNOTATION:
     {
         // check for empty presentation (just in case)
-        DBG_ASSERT(sPresentation.equals(sEmpty),
+        DBG_ASSERT(sPresentation.isEmpty(),
                    "Unexpected presentation for annotation field");
 
         // annotation element + content
@@ -1818,7 +1818,7 @@ void XMLTextFieldExport::ExportFieldHelper(
                         GetBoolProperty(sPropertyIsShowFormula, rPropSet) );
         ProcessValueAndType( false,
                              GetIntProperty(sPropertyNumberFormat, rPropSet),
-                             sEmpty, sEmpty, 0.0f,
+                             "", "", 0.0f,
                              false, false, true,
                              false );
         ExportElement( XML_TABLE_FORMULA, sPresentation );
@@ -2026,7 +2026,7 @@ void XMLTextFieldExport::ExportFieldDeclarations(
                 ProcessValueAndType(
                     bIsString,
                     GetIntProperty(sPropertyNumberFormat, xFieldPropSet),
-                    sEmpty, sEmpty, 0.0,
+                    "", "", 0.0,
                     false, true, false, false);
             }
             else
@@ -2039,7 +2039,7 @@ void XMLTextFieldExport::ExportFieldDeclarations(
                 // from NumberFormats
                 ProcessValueAndType(
                     bIsString,
-                    0, sEmpty, sEmpty, 0.0,
+                    0, "", "", 0.0,
                     false, true, false, false);
             }
 
@@ -2120,7 +2120,7 @@ void XMLTextFieldExport::ExportFieldDeclarations(
                 // expression:
                 ProcessValueAndType(
                     false,
-                    0, sEmpty, sEmpty,
+                    0, "", "",
                     GetDoubleProperty(sPropertyValue, xPropSet),
                     true,
                     true,
@@ -2343,7 +2343,7 @@ void XMLTextFieldExport::ExportMetaField(
         // style:data-style-name
         ProcessValueAndType(false,
             GetIntProperty(sPropertyNumberFormat, i_xMeta),
-            sEmpty, sEmpty, 0.0, false, false, true,
+            "", "", 0.0, false, false, true,
             false  );
 
         // text:meta-field without xml:id is invalid
diff --git a/xmloff/source/text/txtimp.cxx b/xmloff/source/text/txtimp.cxx
index 88c868ca819b..faa8975cbe7d 100644
--- a/xmloff/source/text/txtimp.cxx
+++ b/xmloff/source/text/txtimp.cxx
@@ -1181,9 +1181,8 @@ void XMLTextImportHelper::DeleteParagraph()
     {
         if (m_xImpl->m_xCursor->goLeft( 1, sal_True ))
         {
-            OUString sEmpty;
             m_xImpl->m_xText->insertString(m_xImpl->m_xCursorAsRange,
-                                           sEmpty, sal_True);
+                                           "", sal_True);
         }
     }
 }
@@ -2779,15 +2778,14 @@ OUString XMLTextImportHelper::GetOpenRedlineId()
     return m_xImpl->m_sOpenRedlineIdentifier;
 }
 
-void XMLTextImportHelper::SetOpenRedlineId( OUString& rId)
+void XMLTextImportHelper::SetOpenRedlineId( OUString const & rId)
 {
     m_xImpl->m_sOpenRedlineIdentifier = rId;
 }
 
 void XMLTextImportHelper::ResetOpenRedlineId()
 {
-    OUString sEmpty;
-    SetOpenRedlineId(sEmpty);
+    SetOpenRedlineId("");
 }
 
 void
diff --git a/xmloff/source/text/txtimppr.cxx b/xmloff/source/text/txtimppr.cxx
index 7e65d799d74b..17804337a0d0 100644
--- a/xmloff/source/text/txtimppr.cxx
+++ b/xmloff/source/text/txtimppr.cxx
@@ -190,12 +190,11 @@ void XMLTextImportPropertyMapper::FontDefaultsCheck(
 {
     if( pFontFamilyName )
     {
-        OUString sEmpty;
         Any aAny;
 
         if( !pFontStyleName )
         {
-            aAny <<= sEmpty;
+            aAny <<= OUString();
     #if OSL_DEBUG_LEVEL > 0
                 sal_Int16 nTmp = getPropertySetMapper()->GetEntryContextId(
                                                 pFontFamilyName->mnIndex + 1 );
diff --git a/xmloff/source/text/txtparae.cxx b/xmloff/source/text/txtparae.cxx
index 226d7e04a48e..f7f0a8fe6866 100644
--- a/xmloff/source/text/txtparae.cxx
+++ b/xmloff/source/text/txtparae.cxx
@@ -3675,9 +3675,8 @@ void XMLTextParagraphExport::exportRuby(
 
             // ruby style
             GetExport().CheckAttrList();
-            OUString sEmpty;
             OUString sStyleName(Find( XML_STYLE_FAMILY_TEXT_RUBY, rPropSet,
-                                        sEmpty ));
+                                        "" ));
             DBG_ASSERT(!sStyleName.isEmpty(), "I can't find the style!");
             GetExport().AddAttribute(XML_NAMESPACE_TEXT,
                                      XML_STYLE_NAME, sStyleName);