1 files changed, 24 insertions, 30 deletions

diff --git a/comphelper/source/misc/numberedcollection.cxx b/comphelper/source/misc/numberedcollection.cxx
index 0a771a333251..efadf0fd5a6d 100644
--- a/comphelper/source/misc/numberedcollection.cxx
+++ b/comphelper/source/misc/numberedcollection.cxx
@@ -28,7 +28,6 @@ constexpr OUStringLiteral ERRMSG_INVALID_COMPONENT_PARAM = u"NULL as component r
 
 
 NumberedCollection::NumberedCollection()
-    : ::cppu::BaseMutex ()
 {
 }
 
@@ -41,7 +40,7 @@ NumberedCollection::~NumberedCollection()
 void NumberedCollection::setOwner(const css::uno::Reference< css::uno::XInterface >& xOwner)
 {
     // SYNCHRONIZED ->
-    osl::MutexGuard aLock(m_aMutex);
+    std::scoped_lock aLock(m_aMutex);
 
     m_xOwner = xOwner;
 
@@ -52,7 +51,7 @@ void NumberedCollection::setOwner(const css::uno::Reference< css::uno::XInterfac
 void NumberedCollection::setUntitledPrefix(const OUString& sPrefix)
 {
     // SYNCHRONIZED ->
-    osl::MutexGuard aLock(m_aMutex);
+    std::scoped_lock aLock(m_aMutex);
 
     m_sUntitledPrefix = sPrefix;
 
@@ -63,7 +62,7 @@ void NumberedCollection::setUntitledPrefix(const OUString& sPrefix)
 ::sal_Int32 SAL_CALL NumberedCollection::leaseNumber(const css::uno::Reference< css::uno::XInterface >& xComponent)
 {
     // SYNCHRONIZED ->
-    osl::MutexGuard aLock(m_aMutex);
+    std::scoped_lock aLock(m_aMutex);
 
     if ( ! xComponent.is ())
         throw css::lang::IllegalArgumentException(ERRMSG_INVALID_COMPONENT_PARAM, m_xOwner.get(), 1);
@@ -98,7 +97,7 @@ void NumberedCollection::setUntitledPrefix(const OUString& sPrefix)
 void SAL_CALL NumberedCollection::releaseNumber(::sal_Int32 nNumber)
 {
     // SYNCHRONIZED ->
-    osl::MutexGuard aLock(m_aMutex);
+    std::scoped_lock aLock(m_aMutex);
 
     if (nNumber == css::frame::UntitledNumbersConst::INVALID_NUMBER)
         throw css::lang::IllegalArgumentException ("Special valkud INVALID_NUMBER not allowed as input parameter.", m_xOwner.get(), 1);
@@ -135,7 +134,7 @@ void SAL_CALL NumberedCollection::releaseNumber(::sal_Int32 nNumber)
 void SAL_CALL NumberedCollection::releaseNumberForComponent(const css::uno::Reference< css::uno::XInterface >& xComponent)
 {
     // SYNCHRONIZED ->
-    osl::MutexGuard aLock(m_aMutex);
+    std::scoped_lock aLock(m_aMutex);
 
     if ( ! xComponent.is ())
         throw css::lang::IllegalArgumentException(ERRMSG_INVALID_COMPONENT_PARAM, m_xOwner.get(), 1);
@@ -157,7 +156,7 @@ void SAL_CALL NumberedCollection::releaseNumberForComponent(const css::uno::Refe
 OUString SAL_CALL NumberedCollection::getUntitledPrefix()
 {
     // SYNCHRONIZED ->
-    osl::MutexGuard aLock(m_aMutex);
+    std::scoped_lock aLock(m_aMutex);
 
     return m_sUntitledPrefix;
 
@@ -191,36 +190,31 @@ OUString SAL_CALL NumberedCollection::getUntitledPrefix()
     for (i=1; i<=c; ++i)
         lPossibleNumbers.push_back (i);
 
-    // SYNCHRONIZED ->
+    TDeadItemList                     lDeadItems;
+
+    for (const auto& [rComponent, rItem] : m_lComponents)
     {
-        osl::MutexGuard aLock(m_aMutex);
-        TDeadItemList                     lDeadItems;
+        const css::uno::Reference< css::uno::XInterface > xItem = rItem.xItem.get();
 
-        for (const auto& [rComponent, rItem] : m_lComponents)
+        if ( ! xItem.is ())
         {
-            const css::uno::Reference< css::uno::XInterface > xItem = rItem.xItem.get();
-
-            if ( ! xItem.is ())
-            {
-                lDeadItems.push_back(rComponent);
-                continue;
-            }
-
-            std::vector< ::sal_Int32 >::iterator pPossible = std::find(lPossibleNumbers.begin (), lPossibleNumbers.end (), rItem.nNumber);
-            if (pPossible != lPossibleNumbers.end ())
-                lPossibleNumbers.erase (pPossible);
+            lDeadItems.push_back(rComponent);
+            continue;
         }
 
-        impl_cleanUpDeadItems(m_lComponents, lDeadItems);
+        std::vector< ::sal_Int32 >::iterator pPossible = std::find(lPossibleNumbers.begin (), lPossibleNumbers.end (), rItem.nNumber);
+        if (pPossible != lPossibleNumbers.end ())
+            lPossibleNumbers.erase (pPossible);
+    }
 
-        // a) non free numbers ... return INVALID_NUMBER
-        if (lPossibleNumbers.empty())
-            return css::frame::UntitledNumbersConst::INVALID_NUMBER;
+    impl_cleanUpDeadItems(m_lComponents, lDeadItems);
 
-        // b) return first free number
-        return *(lPossibleNumbers.begin ());
-    }
-    // <- SYNCHRONIZED
+    // a) non free numbers ... return INVALID_NUMBER
+    if (lPossibleNumbers.empty())
+        return css::frame::UntitledNumbersConst::INVALID_NUMBER;
+
+    // b) return first free number
+    return *(lPossibleNumbers.begin ());
 }
 
 void NumberedCollection::impl_cleanUpDeadItems (      TNumberedItemHash& lItems    ,