replace double-checked locking patterns with thread safe local statics

Change-Id: Ie1aae7ecbd065a88b371d8c0deb586f54f7eff65
Reviewed-on: https://gerrit.libreoffice.org/62835
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

10 files changed, 182 insertions, 276 deletions

diff --git a/avmedia/source/framework/soundhandler.cxx b/avmedia/source/framework/soundhandler.cxx
index 70ed2f53c2dc..b004f7b52403 100644
--- a/avmedia/source/framework/soundhandler.cxx
+++ b/avmedia/source/framework/soundhandler.cxx
@@ -76,33 +76,14 @@ css::uno::Sequence< sal_Int8 > SAL_CALL SoundHandler::getImplementationId()
 
 css::uno::Sequence< css::uno::Type > SAL_CALL SoundHandler::getTypes()
 {
-    /* Optimize this method !                                       */
-    /* We initialize a static variable only one time.               */
-    /* And we don't must use a mutex at every call!                 */
-    /* For the first call; pTypeCollection is NULL -                */
-    /* for the second call pTypeCollection is different from NULL!  */
-    static ::cppu::OTypeCollection* pTypeCollection = nullptr ;
-    if ( pTypeCollection == nullptr )
-    {
-        /* Ready for multithreading; get global mutex for first call of this method only! see before   */
-        ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
-        /* Control these pointer again ... it can be, that another instance will be faster then these! */
-        if ( pTypeCollection == nullptr )
-        {
-            /* Create a static typecollection ...           */
-            static ::cppu::OTypeCollection aTypeCollection
-                (
-                    cppu::UnoType<css::lang::XTypeProvider>::get(),
-                    cppu::UnoType<css::lang::XServiceInfo>::get(),
-                    cppu::UnoType<css::frame::XNotifyingDispatch>::get(),
-                    cppu::UnoType<css::frame::XDispatch>::get(),
-                    cppu::UnoType<css::document::XExtendedFilterDetection>::get()
-                );
-            /* ... and set his address to static pointer! */
-            pTypeCollection = &aTypeCollection ;
-        }
-    }
-    return pTypeCollection->getTypes();
+    static ::cppu::OTypeCollection aTypeCollection(
+        cppu::UnoType<css::lang::XTypeProvider>::get(),
+        cppu::UnoType<css::lang::XServiceInfo>::get(),
+        cppu::UnoType<css::frame::XNotifyingDispatch>::get(),
+        cppu::UnoType<css::frame::XDispatch>::get(),
+        cppu::UnoType<css::document::XExtendedFilterDetection>::get());
+
+    return aTypeCollection.getTypes();
 }
 
 #define IMPLEMENTATIONNAME_SOUNDHANDLER OUString("com.sun.star.comp.framework.SoundHandler")
diff --git a/chart2/source/controller/dialogs/dlg_CreationWizard_UNO.cxx b/chart2/source/controller/dialogs/dlg_CreationWizard_UNO.cxx
index 69004f9bc1c6..9606ae805c6f 100644
--- a/chart2/source/controller/dialogs/dlg_CreationWizard_UNO.cxx
+++ b/chart2/source/controller/dialogs/dlg_CreationWizard_UNO.cxx
@@ -113,23 +113,15 @@ uno::Any SAL_CALL CreationWizardUnoDlg::queryAggregation( uno::Type const & rTyp
 
 uno::Sequence< uno::Type > CreationWizardUnoDlg::getTypes()
 {
-    static uno::Sequence< uno::Type > aTypeList;
-
-    ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
-    if( !aTypeList.getLength() )
-    {
-        std::vector< uno::Type > aTypes;
-        aTypes.push_back( cppu::UnoType<lang::XComponent>::get() );
-        aTypes.push_back( cppu::UnoType<lang::XTypeProvider>::get() );
-        aTypes.push_back( cppu::UnoType<uno::XAggregation>::get() );
-        aTypes.push_back( cppu::UnoType<uno::XWeak>::get() );
-        aTypes.push_back( cppu::UnoType<lang::XServiceInfo>::get() );
-        aTypes.push_back( cppu::UnoType<lang::XInitialization>::get() );
-        aTypes.push_back( cppu::UnoType<frame::XTerminateListener>::get() );
-        aTypes.push_back( cppu::UnoType<ui::dialogs::XExecutableDialog>::get() );
-        aTypes.push_back( cppu::UnoType<beans::XPropertySet>::get() );
-        aTypeList = comphelper::containerToSequence( aTypes );
-    }
+    static uno::Sequence<uno::Type> aTypeList{ cppu::UnoType<lang::XComponent>::get(),
+                                               cppu::UnoType<lang::XTypeProvider>::get(),
+                                               cppu::UnoType<uno::XAggregation>::get(),
+                                               cppu::UnoType<uno::XWeak>::get(),
+                                               cppu::UnoType<lang::XServiceInfo>::get(),
+                                               cppu::UnoType<lang::XInitialization>::get(),
+                                               cppu::UnoType<frame::XTerminateListener>::get(),
+                                               cppu::UnoType<ui::dialogs::XExecutableDialog>::get(),
+                                               cppu::UnoType<beans::XPropertySet>::get() };
 
     return aTypeList;
 }
diff --git a/cppu/source/threadpool/current.cxx b/cppu/source/threadpool/current.cxx
index ed8891fabf8f..cd769c046d3f 100644
--- a/cppu/source/threadpool/current.cxx
+++ b/cppu/source/threadpool/current.cxx
@@ -42,57 +42,43 @@ namespace cppu
 
 static typelib_InterfaceTypeDescription * get_type_XCurrentContext()
 {
-    static typelib_InterfaceTypeDescription * s_type_XCurrentContext = nullptr;
-    if (nullptr == s_type_XCurrentContext)
-    {
-        ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
-        if (nullptr == s_type_XCurrentContext)
-        {
-            OUString sTypeName("com.sun.star.uno.XCurrentContext");
-            typelib_InterfaceTypeDescription * pTD = nullptr;
-            typelib_TypeDescriptionReference * pMembers[1] = { nullptr };
-            OUString sMethodName0("com.sun.star.uno.XCurrentContext::getValueByName");
-            typelib_typedescriptionreference_new(
-                &pMembers[0],
-                typelib_TypeClass_INTERFACE_METHOD,
-                sMethodName0.pData );
-            typelib_typedescription_newInterface(
-                &pTD,
-                sTypeName.pData, 0, 0, 0, 0, 0,
-                * typelib_static_type_getByTypeClass( typelib_TypeClass_INTERFACE ),
-                1,
-                pMembers );
-
-            typelib_typedescription_register( reinterpret_cast<typelib_TypeDescription**>(&pTD) );
-            typelib_typedescriptionreference_release( pMembers[0] );
-
-            typelib_InterfaceMethodTypeDescription * pMethod = nullptr;
-            typelib_Parameter_Init aParameters[1];
-            OUString sParamName0("Name");
-            OUString sParamType0("string");
-            aParameters[0].pParamName = sParamName0.pData;
-            aParameters[0].eTypeClass = typelib_TypeClass_STRING;
-            aParameters[0].pTypeName = sParamType0.pData;
-            aParameters[0].bIn = true;
-            aParameters[0].bOut = false;
-            rtl_uString * pExceptions[1];
-            OUString sExceptionName0("com.sun.star.uno.RuntimeException");
-            pExceptions[0] = sExceptionName0.pData;
-            OUString sReturnType0("any");
-            typelib_typedescription_newInterfaceMethod(
-                &pMethod,
-                3, false,
-                sMethodName0.pData,
-                typelib_TypeClass_ANY, sReturnType0.pData,
-                1, aParameters, 1, pExceptions );
-            typelib_typedescription_register( reinterpret_cast<typelib_TypeDescription**>(&pMethod) );
-            typelib_typedescription_release( &pMethod->aBase.aBase );
-            // another static ref:
-            ++reinterpret_cast< typelib_TypeDescription * >( pTD )->
-                nStaticRefCount;
-            s_type_XCurrentContext = pTD;
-        }
-    }
+    static typelib_InterfaceTypeDescription* s_type_XCurrentContext = []() {
+        OUString sTypeName("com.sun.star.uno.XCurrentContext");
+        typelib_InterfaceTypeDescription* pTD = nullptr;
+        typelib_TypeDescriptionReference* pMembers[1] = { nullptr };
+        OUString sMethodName0("com.sun.star.uno.XCurrentContext::getValueByName");
+        typelib_typedescriptionreference_new(&pMembers[0], typelib_TypeClass_INTERFACE_METHOD,
+                                             sMethodName0.pData);
+        typelib_typedescription_newInterface(
+            &pTD, sTypeName.pData, 0, 0, 0, 0, 0,
+            *typelib_static_type_getByTypeClass(typelib_TypeClass_INTERFACE), 1, pMembers);
+
+        typelib_typedescription_register(reinterpret_cast<typelib_TypeDescription**>(&pTD));
+        typelib_typedescriptionreference_release(pMembers[0]);
+
+        typelib_InterfaceMethodTypeDescription* pMethod = nullptr;
+        typelib_Parameter_Init aParameters[1];
+        OUString sParamName0("Name");
+        OUString sParamType0("string");
+        aParameters[0].pParamName = sParamName0.pData;
+        aParameters[0].eTypeClass = typelib_TypeClass_STRING;
+        aParameters[0].pTypeName = sParamType0.pData;
+        aParameters[0].bIn = true;
+        aParameters[0].bOut = false;
+        rtl_uString* pExceptions[1];
+        OUString sExceptionName0("com.sun.star.uno.RuntimeException");
+        pExceptions[0] = sExceptionName0.pData;
+        OUString sReturnType0("any");
+        typelib_typedescription_newInterfaceMethod(&pMethod, 3, false, sMethodName0.pData,
+                                                   typelib_TypeClass_ANY, sReturnType0.pData, 1,
+                                                   aParameters, 1, pExceptions);
+        typelib_typedescription_register(reinterpret_cast<typelib_TypeDescription**>(&pMethod));
+        typelib_typedescription_release(&pMethod->aBase.aBase);
+        // another static ref:
+        ++reinterpret_cast<typelib_TypeDescription*>(pTD)->nStaticRefCount;
+        return pTD;
+    }();
+
     return s_type_XCurrentContext;
 }
 
diff --git a/dbaccess/source/inc/apitools.hxx b/dbaccess/source/inc/apitools.hxx
index 1a4c3a639c9c..6208b146b4c0 100644
--- a/dbaccess/source/inc/apitools.hxx
+++ b/dbaccess/source/inc/apitools.hxx
@@ -155,17 +155,8 @@ public:
 #define IMPLEMENT_IMPLEMENTATION_ID( classname )    \
 css::uno::Sequence< sal_Int8 > classname::getUnoTunnelImplementationId() \
 {   \
-    static ::cppu::OImplementationId* pId = nullptr;  \
-    if ( !pId ) \
-    {   \
-        ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); \
-        if ( !pId ) \
-        {   \
-            static ::cppu::OImplementationId aId;   \
-            pId = &aId; \
-        }   \
-    }   \
-    return pId->getImplementationId();  \
+    static ::cppu::OImplementationId aId;  \
+    return aId.getImplementationId();  \
 } \
 css::uno::Sequence< sal_Int8 > classname::getImplementationId()    \
 {   \
diff --git a/extensions/source/bibliography/framectr.cxx b/extensions/source/bibliography/framectr.cxx
index b6bd50f6e67b..66fa470ca631 100644
--- a/extensions/source/bibliography/framectr.cxx
+++ b/extensions/source/bibliography/framectr.cxx
@@ -95,35 +95,25 @@ static const DispatchInfo SupportedCommandsArray[] =
     { ".uno:Bib/removeFilter"   ,   frame::CommandGroup::DATA       , true  },
     { ".uno:Bib/sdbsource"      ,   frame::CommandGroup::DATA       , true  },
     { ".uno:Bib/Mapping"        ,   frame::CommandGroup::DATA       , true  },
-    { nullptr                         ,   0                               , false }
 };
 
 typedef std::unordered_map< OUString, CacheDispatchInfo > CmdToInfoCache;
 
 static const CmdToInfoCache& GetCommandToInfoCache()
 {
-    static bool       bCacheInitialized = false;
-    static CmdToInfoCache aCmdToInfoCache;
-
-    if ( !bCacheInitialized )
-    {
-        ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
-        if ( !bCacheInitialized )
+    static CmdToInfoCache aCmdToInfoCache = []() {
+        CmdToInfoCache aCache;
+        for (const auto& command : SupportedCommandsArray)
         {
-            sal_Int32 i( 0 );
-            while ( SupportedCommandsArray[i].pCommand != nullptr )
-            {
-                OUString aCommand( OUString::createFromAscii( SupportedCommandsArray[i].pCommand ));
+            OUString aCommand(OUString::createFromAscii(command.pCommand));
 
-                CacheDispatchInfo aDispatchInfo;
-                aDispatchInfo.nGroupId          = SupportedCommandsArray[i].nGroupId;
-                aDispatchInfo.bActiveConnection = SupportedCommandsArray[i].bActiveConnection;
-                aCmdToInfoCache.emplace(aCommand, aDispatchInfo);
-                ++i;
-            }
-            bCacheInitialized = true;
+            CacheDispatchInfo aDispatchInfo;
+            aDispatchInfo.nGroupId = command.nGroupId;
+            aDispatchInfo.bActiveConnection = command.bActiveConnection;
+            aCache.emplace(aCommand, aDispatchInfo);
         }
-    }
+        return aCache;
+    }();
 
     return aCmdToInfoCache;
 }
diff --git a/extensions/source/propctrlr/eventhandler.cxx b/extensions/source/propctrlr/eventhandler.cxx
index 544fb9b83c1d..224b4b77e3d9 100644
--- a/extensions/source/propctrlr/eventhandler.cxx
+++ b/extensions/source/propctrlr/eventhandler.cxx
@@ -154,56 +154,53 @@ namespace pcr
 
     namespace
     {
-        #define DESCRIBE_EVENT( asciinamespace, asciilistener, asciimethod, id_postfix ) \
-            s_aKnownEvents.emplace(  \
+        #define DESCRIBE_EVENT( map, asciinamespace, asciilistener, asciimethod, id_postfix ) \
+            map.emplace(  \
                 asciimethod, \
                 EventDescription( ++nEventId, asciinamespace, asciilistener, asciimethod, RID_STR_EVT_##id_postfix, HID_EVT_##id_postfix, UID_BRWEVT_##id_postfix ) )
 
         bool lcl_getEventDescriptionForMethod( const OUString& _rMethodName, EventDescription& _out_rDescription )
         {
-            static EventMap s_aKnownEvents;
-            if ( s_aKnownEvents.empty() )
-            {
-                ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
-                if ( s_aKnownEvents.empty() )
-                {
-                    static sal_Int32 nEventId = 0;
-
-                    DESCRIBE_EVENT( "form", "XApproveActionListener",       "approveAction",            APPROVEACTIONPERFORMED );
-                    DESCRIBE_EVENT( "awt",  "XActionListener",              "actionPerformed",          ACTIONPERFORMED );
-                    DESCRIBE_EVENT( "form", "XChangeListener",              "changed",                  CHANGED );
-                    DESCRIBE_EVENT( "awt",  "XTextListener",                "textChanged",              TEXTCHANGED );
-                    DESCRIBE_EVENT( "awt",  "XItemListener",                "itemStateChanged",         ITEMSTATECHANGED );
-                    DESCRIBE_EVENT( "awt",  "XFocusListener",               "focusGained",              FOCUSGAINED );
-                    DESCRIBE_EVENT( "awt",  "XFocusListener",               "focusLost",                FOCUSLOST );
-                    DESCRIBE_EVENT( "awt",  "XKeyListener",                 "keyPressed",               KEYTYPED );
-                    DESCRIBE_EVENT( "awt",  "XKeyListener",                 "keyReleased",              KEYUP );
-                    DESCRIBE_EVENT( "awt",  "XMouseListener",               "mouseEntered",             MOUSEENTERED );
-                    DESCRIBE_EVENT( "awt",  "XMouseMotionListener",         "mouseDragged",             MOUSEDRAGGED );
-                    DESCRIBE_EVENT( "awt",  "XMouseMotionListener",         "mouseMoved",               MOUSEMOVED );
-                    DESCRIBE_EVENT( "awt",  "XMouseListener",               "mousePressed",             MOUSEPRESSED );
-                    DESCRIBE_EVENT( "awt",  "XMouseListener",               "mouseReleased",            MOUSERELEASED );
-                    DESCRIBE_EVENT( "awt",  "XMouseListener",               "mouseExited",              MOUSEEXITED );
-                    DESCRIBE_EVENT( "form", "XResetListener",               "approveReset",             APPROVERESETTED );
-                    DESCRIBE_EVENT( "form", "XResetListener",               "resetted",                 RESETTED );
-                    DESCRIBE_EVENT( "form", "XSubmitListener",              "approveSubmit",            SUBMITTED );
-                    DESCRIBE_EVENT( "form", "XUpdateListener",              "approveUpdate",            BEFOREUPDATE );
-                    DESCRIBE_EVENT( "form", "XUpdateListener",              "updated",                  AFTERUPDATE );
-                    DESCRIBE_EVENT( "form", "XLoadListener",                "loaded",                   LOADED );
-                    DESCRIBE_EVENT( "form", "XLoadListener",                "reloading",                RELOADING );
-                    DESCRIBE_EVENT( "form", "XLoadListener",                "reloaded",                 RELOADED );
-                    DESCRIBE_EVENT( "form", "XLoadListener",                "unloading",                UNLOADING );
-                    DESCRIBE_EVENT( "form", "XLoadListener",                "unloaded",                 UNLOADED );
-                    DESCRIBE_EVENT( "form", "XConfirmDeleteListener",       "confirmDelete",            CONFIRMDELETE );
-                    DESCRIBE_EVENT( "sdb",  "XRowSetApproveListener",       "approveRowChange",         APPROVEROWCHANGE );
-                    DESCRIBE_EVENT( "sdbc", "XRowSetListener",              "rowChanged",               ROWCHANGE );
-                    DESCRIBE_EVENT( "sdb",  "XRowSetApproveListener",       "approveCursorMove",        POSITIONING );
-                    DESCRIBE_EVENT( "sdbc", "XRowSetListener",              "cursorMoved",              POSITIONED );
-                    DESCRIBE_EVENT( "form", "XDatabaseParameterListener",   "approveParameter",         APPROVEPARAMETER );
-                    DESCRIBE_EVENT( "sdb",  "XSQLErrorListener",            "errorOccured",             ERROROCCURRED );
-                    DESCRIBE_EVENT( "awt",  "XAdjustmentListener",          "adjustmentValueChanged",   ADJUSTMENTVALUECHANGED );
-                }
-            }
+            static EventMap s_aKnownEvents = []() {
+                EventMap aMap;
+                sal_Int32 nEventId = 0;
+
+                DESCRIBE_EVENT(aMap, "form", "XApproveActionListener",     "approveAction",          APPROVEACTIONPERFORMED);
+                DESCRIBE_EVENT(aMap, "awt",  "XActionListener",            "actionPerformed",        ACTIONPERFORMED);
+                DESCRIBE_EVENT(aMap, "form", "XChangeListener",            "changed",                CHANGED);
+                DESCRIBE_EVENT(aMap, "awt",  "XTextListener",              "textChanged",            TEXTCHANGED);
+                DESCRIBE_EVENT(aMap, "awt",  "XItemListener",              "itemStateChanged",       ITEMSTATECHANGED);
+                DESCRIBE_EVENT(aMap, "awt",  "XFocusListener",             "focusGained",            FOCUSGAINED);
+                DESCRIBE_EVENT(aMap, "awt",  "XFocusListener",             "focusLost",              FOCUSLOST);
+                DESCRIBE_EVENT(aMap, "awt",  "XKeyListener",               "keyPressed",             KEYTYPED);
+                DESCRIBE_EVENT(aMap, "awt",  "XKeyListener",               "keyReleased",            KEYUP);
+                DESCRIBE_EVENT(aMap, "awt",  "XMouseListener",             "mouseEntered",           MOUSEENTERED);
+                DESCRIBE_EVENT(aMap, "awt",  "XMouseMotionListener",       "mouseDragged",           MOUSEDRAGGED);
+                DESCRIBE_EVENT(aMap, "awt",  "XMouseMotionListener",       "mouseMoved",             MOUSEMOVED);
+                DESCRIBE_EVENT(aMap, "awt",  "XMouseListener",             "mousePressed",           MOUSEPRESSED);
+                DESCRIBE_EVENT(aMap, "awt",  "XMouseListener",             "mouseReleased",          MOUSERELEASED);
+                DESCRIBE_EVENT(aMap, "awt",  "XMouseListener",             "mouseExited",            MOUSEEXITED);
+                DESCRIBE_EVENT(aMap, "form", "XResetListener",             "approveReset",           APPROVERESETTED);
+                DESCRIBE_EVENT(aMap, "form", "XResetListener",             "resetted",               RESETTED);
+                DESCRIBE_EVENT(aMap, "form", "XSubmitListener",            "approveSubmit",          SUBMITTED);
+                DESCRIBE_EVENT(aMap, "form", "XUpdateListener",            "approveUpdate",          BEFOREUPDATE);
+                DESCRIBE_EVENT(aMap, "form", "XUpdateListener",            "updated",                AFTERUPDATE);
+                DESCRIBE_EVENT(aMap, "form", "XLoadListener",              "loaded",                 LOADED);
+                DESCRIBE_EVENT(aMap, "form", "XLoadListener",              "reloading",              RELOADING);
+                DESCRIBE_EVENT(aMap, "form", "XLoadListener",              "reloaded",               RELOADED);
+                DESCRIBE_EVENT(aMap, "form", "XLoadListener",              "unloading",              UNLOADING);
+                DESCRIBE_EVENT(aMap, "form", "XLoadListener",              "unloaded",               UNLOADED);
+                DESCRIBE_EVENT(aMap, "form", "XConfirmDeleteListener",     "confirmDelete",          CONFIRMDELETE);
+                DESCRIBE_EVENT(aMap, "sdb",  "XRowSetApproveListener",     "approveRowChange",       APPROVEROWCHANGE);
+                DESCRIBE_EVENT(aMap, "sdbc", "XRowSetListener",            "rowChanged",             ROWCHANGE);
+                DESCRIBE_EVENT(aMap, "sdb",  "XRowSetApproveListener",     "approveCursorMove",      POSITIONING);
+                DESCRIBE_EVENT(aMap, "sdbc", "XRowSetListener",            "cursorMoved",            POSITIONED);
+                DESCRIBE_EVENT(aMap, "form", "XDatabaseParameterListener", "approveParameter",       APPROVEPARAMETER);
+                DESCRIBE_EVENT(aMap, "sdb",  "XSQLErrorListener",          "errorOccured",           ERROROCCURRED);
+                DESCRIBE_EVENT(aMap, "awt",  "XAdjustmentListener",        "adjustmentValueChanged", ADJUSTMENTVALUECHANGED);
+
+                return aMap;
+            }();
 
             EventMap::const_iterator pos = s_aKnownEvents.find( _rMethodName );
             if ( pos == s_aKnownEvents.end() )
diff --git a/forms/source/richtext/richtextmodel.cxx b/forms/source/richtext/richtextmodel.cxx
index ba25affe199f..7d0ff09eeed8 100644
--- a/forms/source/richtext/richtextmodel.cxx
+++ b/forms/source/richtext/richtextmodel.cxx
@@ -524,17 +524,8 @@ namespace frm
 
     Sequence< sal_Int8 > ORichTextModel::getEditEngineTunnelId()
     {
-        static ::cppu::OImplementationId * pId = nullptr;
-        if (! pId)
-        {
-            ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
-            if (! pId)
-            {
-                static ::cppu::OImplementationId aId;
-                pId = &aId;
-            }
-        }
-        return pId->getImplementationId();
+        static cppu::OImplementationId aId;
+        return aId.getImplementationId();
     }
 
 
diff --git a/svx/source/table/tablecolumn.cxx b/svx/source/table/tablecolumn.cxx
index 183659670256..2342c6f10c87 100644
--- a/svx/source/table/tablecolumn.cxx
+++ b/svx/source/table/tablecolumn.cxx
@@ -234,47 +234,41 @@ Any SAL_CALL TableColumn::getFastPropertyValue( sal_Int32 nHandle )
 
 rtl::Reference< FastPropertySetInfo > TableColumn::getStaticPropertySetInfo()
 {
-    static rtl::Reference< FastPropertySetInfo > xInfo;
-    if( !xInfo.is() )
-    {
-        ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
-        if( !xInfo.is() )
-        {
-            PropertyVector aProperties(6);
-
-            aProperties[0].Name = "Width";
-            aProperties[0].Handle = Property_Width;
-            aProperties[0].Type = ::cppu::UnoType<sal_Int32>::get();
-            aProperties[0].Attributes = 0;
-
-            aProperties[1].Name = "OptimalWidth";
-            aProperties[1].Handle = Property_OptimalWidth;
-            aProperties[1].Type = cppu::UnoType<bool>::get();
-            aProperties[1].Attributes = 0;
-
-            aProperties[2].Name = "IsVisible";
-            aProperties[2].Handle = Property_IsVisible;
-            aProperties[2].Type = cppu::UnoType<bool>::get();
-            aProperties[2].Attributes = 0;
-
-            aProperties[3].Name = "IsStartOfNewPage";
-            aProperties[3].Handle = Property_IsStartOfNewPage;
-            aProperties[3].Type = cppu::UnoType<bool>::get();
-            aProperties[3].Attributes = 0;
-
-            aProperties[4].Name = "Size";
-            aProperties[4].Handle = Property_Width;
-            aProperties[4].Type = ::cppu::UnoType<sal_Int32>::get();
-            aProperties[4].Attributes = 0;
-
-            aProperties[5].Name = "OptimalSize";
-            aProperties[5].Handle = Property_OptimalWidth;
-            aProperties[5].Type = cppu::UnoType<bool>::get();
-            aProperties[5].Attributes = 0;
-
-            xInfo.set( new FastPropertySetInfo(aProperties) );
-        }
-    }
+    static rtl::Reference<FastPropertySetInfo> xInfo = []() {
+        PropertyVector aProperties(6);
+
+        aProperties[0].Name = "Width";
+        aProperties[0].Handle = Property_Width;
+        aProperties[0].Type = ::cppu::UnoType<sal_Int32>::get();
+        aProperties[0].Attributes = 0;
+
+        aProperties[1].Name = "OptimalWidth";
+        aProperties[1].Handle = Property_OptimalWidth;
+        aProperties[1].Type = cppu::UnoType<bool>::get();
+        aProperties[1].Attributes = 0;
+
+        aProperties[2].Name = "IsVisible";
+        aProperties[2].Handle = Property_IsVisible;
+        aProperties[2].Type = cppu::UnoType<bool>::get();
+        aProperties[2].Attributes = 0;
+
+        aProperties[3].Name = "IsStartOfNewPage";
+        aProperties[3].Handle = Property_IsStartOfNewPage;
+        aProperties[3].Type = cppu::UnoType<bool>::get();
+        aProperties[3].Attributes = 0;
+
+        aProperties[4].Name = "Size";
+        aProperties[4].Handle = Property_Width;
+        aProperties[4].Type = ::cppu::UnoType<sal_Int32>::get();
+        aProperties[4].Attributes = 0;
+
+        aProperties[5].Name = "OptimalSize";
+        aProperties[5].Handle = Property_OptimalWidth;
+        aProperties[5].Type = cppu::UnoType<bool>::get();
+        aProperties[5].Attributes = 0;
+
+        return rtl::Reference<FastPropertySetInfo>(new FastPropertySetInfo(aProperties));
+    }();
 
     return xInfo;
 }
diff --git a/svx/source/table/tablerow.cxx b/svx/source/table/tablerow.cxx
index 87cba24d12cd..d1dd1f371800 100644
--- a/svx/source/table/tablerow.cxx
+++ b/svx/source/table/tablerow.cxx
@@ -308,47 +308,41 @@ Any SAL_CALL TableRow::getFastPropertyValue( sal_Int32 nHandle )
 
 rtl::Reference< FastPropertySetInfo > TableRow::getStaticPropertySetInfo()
 {
-    static rtl::Reference< FastPropertySetInfo > xInfo;
-    if( !xInfo.is() )
-    {
-        ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
-        if( !xInfo.is() )
-        {
-            PropertyVector aProperties(6);
-
-            aProperties[0].Name = "Height";
-            aProperties[0].Handle = Property_Height;
-            aProperties[0].Type = ::cppu::UnoType<sal_Int32>::get();
-            aProperties[0].Attributes = 0;
-
-            aProperties[1].Name = "OptimalHeight";
-            aProperties[1].Handle = Property_OptimalHeight;
-            aProperties[1].Type = cppu::UnoType<bool>::get();
-            aProperties[1].Attributes = 0;
-
-            aProperties[2].Name = "IsVisible";
-            aProperties[2].Handle = Property_IsVisible;
-            aProperties[2].Type = cppu::UnoType<bool>::get();
-            aProperties[2].Attributes = 0;
-
-            aProperties[3].Name = "IsStartOfNewPage";
-            aProperties[3].Handle = Property_IsStartOfNewPage;
-            aProperties[3].Type = cppu::UnoType<bool>::get();
-            aProperties[3].Attributes = 0;
-
-            aProperties[4].Name = "Size";
-            aProperties[4].Handle = Property_Height;
-            aProperties[4].Type = ::cppu::UnoType<sal_Int32>::get();
-            aProperties[4].Attributes = 0;
-
-            aProperties[5].Name = "OptimalSize";
-            aProperties[5].Handle = Property_OptimalHeight;
-            aProperties[5].Type = cppu::UnoType<bool>::get();
-            aProperties[5].Attributes = 0;
-
-            xInfo.set( new FastPropertySetInfo(aProperties) );
-        }
-    }
+    static rtl::Reference<FastPropertySetInfo> xInfo = []() {
+        PropertyVector aProperties(6);
+
+        aProperties[0].Name = "Height";
+        aProperties[0].Handle = Property_Height;
+        aProperties[0].Type = ::cppu::UnoType<sal_Int32>::get();
+        aProperties[0].Attributes = 0;
+
+        aProperties[1].Name = "OptimalHeight";
+        aProperties[1].Handle = Property_OptimalHeight;
+        aProperties[1].Type = cppu::UnoType<bool>::get();
+        aProperties[1].Attributes = 0;
+
+        aProperties[2].Name = "IsVisible";
+        aProperties[2].Handle = Property_IsVisible;
+        aProperties[2].Type = cppu::UnoType<bool>::get();
+        aProperties[2].Attributes = 0;
+
+        aProperties[3].Name = "IsStartOfNewPage";
+        aProperties[3].Handle = Property_IsStartOfNewPage;
+        aProperties[3].Type = cppu::UnoType<bool>::get();
+        aProperties[3].Attributes = 0;
+
+        aProperties[4].Name = "Size";
+        aProperties[4].Handle = Property_Height;
+        aProperties[4].Type = ::cppu::UnoType<sal_Int32>::get();
+        aProperties[4].Attributes = 0;
+
+        aProperties[5].Name = "OptimalSize";
+        aProperties[5].Handle = Property_OptimalHeight;
+        aProperties[5].Type = cppu::UnoType<bool>::get();
+        aProperties[5].Attributes = 0;
+
+        return rtl::Reference<FastPropertySetInfo>(new FastPropertySetInfo(aProperties));
+    }();
 
     return xInfo;
 }
diff --git a/toolkit/source/controls/controlmodelcontainerbase.cxx b/toolkit/source/controls/controlmodelcontainerbase.cxx
index 1235e6c09889..4d05caa81ff8 100644
--- a/toolkit/source/controls/controlmodelcontainerbase.cxx
+++ b/toolkit/source/controls/controlmodelcontainerbase.cxx
@@ -79,18 +79,8 @@ namespace
 {
     const Sequence< OUString >& lcl_getLanguageDependentProperties()
     {
-        static Sequence< OUString > s_aLanguageDependentProperties;
-        if ( s_aLanguageDependentProperties.getLength() == 0 )
-        {
-            ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
-            if ( s_aLanguageDependentProperties.getLength() == 0 )
-            {
-                s_aLanguageDependentProperties.realloc( 2 );
-                s_aLanguageDependentProperties[0] = "HelpText";
-                s_aLanguageDependentProperties[1] = "Title";
-                // note: properties must be sorted
-            }
-        }
+        // note: properties must be sorted
+        static Sequence<OUString> s_aLanguageDependentProperties{ "HelpText", "Title" };
         return s_aLanguageDependentProperties;
     }
 }