sc/source/ui/Accessibility/AccessibleCell.cxx                |    4 
 sc/source/ui/Accessibility/AccessibleCellBase.cxx            |   18 +-
 sc/source/ui/Accessibility/AccessibleContextBase.cxx         |   18 --
 sc/source/ui/Accessibility/AccessibleDocument.cxx            |   32 +--
 sc/source/ui/Accessibility/AccessibleDocumentPagePreview.cxx |    8 
 sc/source/ui/Accessibility/AccessibleEditObject.cxx          |    6 
 sc/source/ui/Accessibility/AccessiblePageHeader.cxx          |    8 
 sc/source/ui/Accessibility/AccessiblePageHeaderArea.cxx      |    6 
 sc/source/ui/Accessibility/AccessiblePreviewCell.cxx         |    8 
 sc/source/ui/Accessibility/AccessiblePreviewHeaderCell.cxx   |   12 -
 sc/source/ui/Accessibility/AccessiblePreviewTable.cxx        |   91 +++++------
 sc/source/ui/Accessibility/AccessibleSpreadsheet.cxx         |   32 +--
 sc/source/ui/Accessibility/AccessibleTableBase.cxx           |   18 +-
 sc/source/ui/inc/AccessibleContextBase.hxx                   |    3 
 14 files changed, 127 insertions(+), 137 deletions(-)

New commits:
commit c3de6327f0552e577aacab34d127ea86fdf0b85d
Author:     Michael Weghorn <m.wegh...@posteo.de>
AuthorDate: Wed Apr 9 15:58:22 2025 +0200
Commit:     Michael Weghorn <m.wegh...@posteo.de>
CommitDate: Thu Apr 10 19:44:33 2025 +0200

    sc a11y: Flatten ScAccessiblePreviewTable::getAccessibleAtPoint
    
    Change-Id: I2bdbad8212fd8fd377f2616a7e322b5696171de5
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/183941
    Reviewed-by: Michael Weghorn <m.wegh...@posteo.de>
    Tested-by: Jenkins

diff --git a/sc/source/ui/Accessibility/AccessiblePreviewTable.cxx 
b/sc/source/ui/Accessibility/AccessiblePreviewTable.cxx
index 429dffe13783..178f1d0f13d1 100644
--- a/sc/source/ui/Accessibility/AccessiblePreviewTable.cxx
+++ b/sc/source/ui/Accessibility/AccessiblePreviewTable.cxx
@@ -389,50 +389,49 @@ sal_Int32 SAL_CALL 
ScAccessiblePreviewTable::getAccessibleColumn( sal_Int64 nChi
 
 uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePreviewTable::getAccessibleAtPoint( const awt::Point& aPoint )
 {
-    uno::Reference<XAccessible> xRet;
-    if (containsPoint(aPoint))
-    {
-        SolarMutexGuard aGuard;
-        ensureAlive();
+    if (!containsPoint(aPoint))
+        return nullptr;
 
-        FillTableInfo();
+    SolarMutexGuard aGuard;
+    ensureAlive();
 
-        if ( mpTableInfo )
-        {
-            SCCOL nCols = mpTableInfo->GetCols();
-            SCROW nRows = mpTableInfo->GetRows();
-            const ScPreviewColRowInfo* pColInfo = mpTableInfo->GetColInfo();
-            const ScPreviewColRowInfo* pRowInfo = mpTableInfo->GetRowInfo();
+    FillTableInfo();
+
+    if (!mpTableInfo)
+        return nullptr;
+
+    SCCOL nCols = mpTableInfo->GetCols();
+    SCROW nRows = mpTableInfo->GetRows();
+    const ScPreviewColRowInfo* pColInfo = mpTableInfo->GetColInfo();
+    const ScPreviewColRowInfo* pRowInfo = mpTableInfo->GetRowInfo();
 
-            tools::Rectangle aScreenRect(GetBoundingBox());
+    tools::Rectangle aScreenRect(GetBoundingBox());
 
-            awt::Point aMovedPoint = aPoint;
-            aMovedPoint.X += aScreenRect.Left();
-            aMovedPoint.Y += aScreenRect.Top();
+    awt::Point aMovedPoint = aPoint;
+    aMovedPoint.X += aScreenRect.Left();
+    aMovedPoint.Y += aScreenRect.Top();
 
-            if ( nCols > 0 && nRows > 0 && aMovedPoint.X >= 
pColInfo[0].nPixelStart && aMovedPoint.Y >= pRowInfo[0].nPixelStart )
+    if ( nCols > 0 && nRows > 0 && aMovedPoint.X >= pColInfo[0].nPixelStart && 
aMovedPoint.Y >= pRowInfo[0].nPixelStart )
+    {
+        SCCOL nColIndex = 0;
+        while ( nColIndex < nCols && aMovedPoint.X > 
pColInfo[nColIndex].nPixelEnd )
+            ++nColIndex;
+        SCROW nRowIndex = 0;
+        while ( nRowIndex < nRows && aMovedPoint.Y > 
pRowInfo[nRowIndex].nPixelEnd )
+            ++nRowIndex;
+        if ( nColIndex < nCols && nRowIndex < nRows )
+        {
+            try
+            {
+                return getAccessibleCellAt( nRowIndex, nColIndex );
+            }
+            catch (uno::Exception&)
             {
-                SCCOL nColIndex = 0;
-                while ( nColIndex < nCols && aMovedPoint.X > 
pColInfo[nColIndex].nPixelEnd )
-                    ++nColIndex;
-                SCROW nRowIndex = 0;
-                while ( nRowIndex < nRows && aMovedPoint.Y > 
pRowInfo[nRowIndex].nPixelEnd )
-                    ++nRowIndex;
-                if ( nColIndex < nCols && nRowIndex < nRows )
-                {
-                    try
-                    {
-                        xRet = getAccessibleCellAt( nRowIndex, nColIndex );
-                    }
-                    catch (uno::Exception&)
-                    {
-                    }
-                }
             }
         }
     }
 
-    return xRet;
+    return nullptr;
 }
 
 void SAL_CALL ScAccessiblePreviewTable::grabFocus()
commit b0b37f0d98bf6f4bac90de6b0b588fd732209840
Author:     Michael Weghorn <m.wegh...@posteo.de>
AuthorDate: Wed Apr 9 15:50:01 2025 +0200
Commit:     Michael Weghorn <m.wegh...@posteo.de>
CommitDate: Thu Apr 10 19:44:25 2025 +0200

    sc a11y: Drop ScAccessibleContextBase::IsObjectValid
    
    Use the equivalent base class method
    OAccessibleComponentHelper::ensureAlive instead.
    
    Change-Id: I27fd4ace99ffac9451e4dab76cba19a2a39f37ca
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/183940
    Tested-by: Jenkins
    Reviewed-by: Michael Weghorn <m.wegh...@posteo.de>

diff --git a/sc/source/ui/Accessibility/AccessibleCell.cxx 
b/sc/source/ui/Accessibility/AccessibleCell.cxx
index 8cda34ab2170..98d6fc6a0447 100644
--- a/sc/source/ui/Accessibility/AccessibleCell.cxx
+++ b/sc/source/ui/Accessibility/AccessibleCell.cxx
@@ -135,7 +135,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessibleCell::getAccessibleAtPoint(
 void SAL_CALL ScAccessibleCell::grabFocus(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (getAccessibleParent().is() && mpViewShell)
     {
         uno::Reference<XAccessibleComponent> 
xAccessibleComponent(getAccessibleParent()->getAccessibleContext(), 
uno::UNO_QUERY);
@@ -278,7 +278,7 @@ uno::Reference<XAccessibleRelationSet> SAL_CALL
        ScAccessibleCell::getAccessibleRelationSet()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     rtl::Reference<utl::AccessibleRelationSetHelper> pRelationSet;
     if (mpAccDoc)
         pRelationSet = mpAccDoc->GetRelationSet(&maCellAddress);
diff --git a/sc/source/ui/Accessibility/AccessibleCellBase.cxx 
b/sc/source/ui/Accessibility/AccessibleCellBase.cxx
index ebff91c101e2..8735629c858d 100644
--- a/sc/source/ui/Accessibility/AccessibleCellBase.cxx
+++ b/sc/source/ui/Accessibility/AccessibleCellBase.cxx
@@ -68,7 +68,7 @@ ScAccessibleCellBase::~ScAccessibleCellBase()
 bool ScAccessibleCellBase::isVisible()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     // test whether the cell is hidden (column/row - hidden/filtered)
     bool bVisible(true);
     if (mpDoc)
@@ -87,7 +87,7 @@ bool ScAccessibleCellBase::isVisible()
 sal_Int32 SAL_CALL ScAccessibleCellBase::getForeground()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     sal_Int32 nColor(0);
     if (mpDoc)
     {
@@ -126,7 +126,7 @@ sal_Int32 SAL_CALL ScAccessibleCellBase::getForeground()
 sal_Int32 SAL_CALL ScAccessibleCellBase::getBackground()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     sal_Int32 nColor(0);
 
     if (mpDoc)
@@ -190,7 +190,7 @@ sal_Int64
     ScAccessibleCellBase::getAccessibleIndexInParent()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     return mnIndex;
 }
 
@@ -214,7 +214,7 @@ uno::Any SAL_CALL
     ScAccessibleCellBase::getCurrentValue()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     uno::Any aAny;
     if (mpDoc)
     {
@@ -227,7 +227,7 @@ sal_Bool SAL_CALL
     ScAccessibleCellBase::setCurrentValue( const uno::Any& aNumber )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     double fValue = 0;
     bool bResult = false;
     if((aNumber >>= fValue) && mpDoc && mpDoc->GetDocumentShell())
@@ -294,7 +294,7 @@ bool ScAccessibleCellBase::IsEditable(sal_Int64 
nParentStates)
 OUString ScAccessibleCellBase::GetNote() const
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     OUString sNote;
     if (mpDoc)
     {
@@ -340,7 +340,7 @@ OUString ScAccessibleCellBase::GetNote() const
 OUString ScAccessibleCellBase::getShadowAttrs() const
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     table::ShadowFormat aShadowFmt;
     if (mpDoc)
     {
@@ -420,7 +420,7 @@ OUString ScAccessibleCellBase::getShadowAttrs() const
 OUString ScAccessibleCellBase::getBorderAttrs()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     table::BorderLine aTopBorder;
     table::BorderLine aBottomBorder;
     table::BorderLine aLeftBorder;
diff --git a/sc/source/ui/Accessibility/AccessibleContextBase.cxx 
b/sc/source/ui/Accessibility/AccessibleContextBase.cxx
index c17991bc9e0d..f4d1a69c2c46 100644
--- a/sc/source/ui/Accessibility/AccessibleContextBase.cxx
+++ b/sc/source/ui/Accessibility/AccessibleContextBase.cxx
@@ -109,14 +109,14 @@ awt::Rectangle ScAccessibleContextBase::implGetBounds(  )
 awt::Point SAL_CALL ScAccessibleContextBase::getLocationOnScreen(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     return 
vcl::unohelper::ConvertToAWTPoint(GetBoundingBoxOnScreen().TopLeft());
 }
 
 bool ScAccessibleContextBase::isShowing(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     bool bShowing(false);
     if (mxParent.is())
     {
@@ -164,7 +164,7 @@ sal_Int64 SAL_CALL
        ScAccessibleContextBase::getAccessibleIndexInParent()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     //  Use a simple but slow solution for now.  Optimize later.
    //   Return -1 to indicate that this object's parent does not know about the
    //   object.
@@ -200,7 +200,7 @@ OUString SAL_CALL
        ScAccessibleContextBase::getAccessibleDescription()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (msDescription.isEmpty())
     {
         OUString sDescription(createAccessibleDescription());
@@ -221,7 +221,7 @@ OUString SAL_CALL
        ScAccessibleContextBase::getAccessibleName()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (msName.isEmpty())
     {
         OUString sName(createAccessibleName());
@@ -253,7 +253,7 @@ lang::Locale SAL_CALL
        ScAccessibleContextBase::getLocale()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (mxParent.is())
     {
         uno::Reference<XAccessibleContext> xParentContext (
@@ -318,10 +318,4 @@ void ScAccessibleContextBase::CommitFocusLost()
                  uno::Any());
 }
 
-void ScAccessibleContextBase::IsObjectValid() const
-{
-    if (rBHelper.bDisposed || rBHelper.bInDispose)
-        throw lang::DisposedException();
-}
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/Accessibility/AccessibleDocument.cxx 
b/sc/source/ui/Accessibility/AccessibleDocument.cxx
index 42ba75f6433a..4963e96de9af 100644
--- a/sc/source/ui/Accessibility/AccessibleDocument.cxx
+++ b/sc/source/ui/Accessibility/AccessibleDocument.cxx
@@ -1591,7 +1591,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessibleDocument::getAccessibleAtPoin
     if (containsPoint(rPoint))
     {
         SolarMutexGuard aGuard;
-        IsObjectValid();
+        ensureAlive();
         if (mpChildrenShapes)
             xAccessible = mpChildrenShapes->GetAt(rPoint);
         if(!xAccessible.is())
@@ -1617,7 +1617,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessibleDocument::getAccessibleAtPoin
 void SAL_CALL ScAccessibleDocument::grabFocus(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (!getAccessibleParent().is())
         return;
 
@@ -1642,7 +1642,7 @@ sal_Int64 SAL_CALL
     ScAccessibleDocument::getAccessibleChildCount()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     sal_Int64 nCount(1);
     if (mpChildrenShapes)
         nCount = mpChildrenShapes->GetCount(); // returns the count of the 
shapes inclusive the table
@@ -1658,7 +1658,7 @@ uno::Reference<XAccessible> SAL_CALL
     ScAccessibleDocument::getAccessibleChild(sal_Int64 nIndex)
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     uno::Reference<XAccessible> xAccessible;
     if (nIndex >= 0)
     {
@@ -1749,7 +1749,7 @@ void SAL_CALL
     ScAccessibleDocument::selectAccessibleChild( sal_Int64 nChildIndex )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if (!(mpChildrenShapes && mpViewShell))
         return;
@@ -1778,7 +1778,7 @@ sal_Bool SAL_CALL
     ScAccessibleDocument::isAccessibleChildSelected( sal_Int64 nChildIndex )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     bool bResult(false);
 
     if (mpChildrenShapes)
@@ -1810,7 +1810,7 @@ void SAL_CALL
     ScAccessibleDocument::clearAccessibleSelection(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if (mpChildrenShapes)
         mpChildrenShapes->DeselectAll(); //deselects all (also the table)
@@ -1820,7 +1820,7 @@ void SAL_CALL
     ScAccessibleDocument::selectAllAccessibleChildren(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if (mpChildrenShapes)
         mpChildrenShapes->SelectAll();
@@ -1836,7 +1836,7 @@ sal_Int64 SAL_CALL
     ScAccessibleDocument::getSelectedAccessibleChildCount(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     sal_Int64 nCount(0);
 
     if (mpChildrenShapes)
@@ -1855,7 +1855,7 @@ uno::Reference<XAccessible > SAL_CALL
     ScAccessibleDocument::getSelectedAccessibleChild( sal_Int64 
nSelectedChildIndex )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     uno::Reference<XAccessible> xAccessible;
     if (mpChildrenShapes)
     {
@@ -1882,7 +1882,7 @@ void SAL_CALL
     ScAccessibleDocument::deselectAccessibleChild( sal_Int64 nChildIndex )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if (!(mpChildrenShapes && mpViewShell))
         return;
@@ -1958,14 +1958,14 @@ tools::Rectangle 
ScAccessibleDocument::GetVisibleArea_Impl() const
 tools::Rectangle ScAccessibleDocument::GetVisibleArea() const
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     return maVisArea;
 }
 
 Point ScAccessibleDocument::LogicToPixel (const Point& rPoint) const
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     Point aPoint;
     ScGridWindow* pWin = 
static_cast<ScGridWindow*>(mpViewShell->GetWindowByPos(meSplitPos));
     if (pWin)
@@ -1979,7 +1979,7 @@ Point ScAccessibleDocument::LogicToPixel (const Point& 
rPoint) const
 Size ScAccessibleDocument::LogicToPixel (const Size& rSize) const
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     Size aSize;
     ScGridWindow* pWin = 
static_cast<ScGridWindow*>(mpViewShell->GetWindowByPos(meSplitPos));
     if (pWin)
@@ -2007,7 +2007,7 @@ OUString
     ScAccessibleDocument::createAccessibleName()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     OUString sName = ScResId(STR_ACC_DOC_NAME);
     sal_Int32 nNumber(sal_Int32(meSplitPos) + 1);
     sName += OUString::number(nNumber);
@@ -2168,7 +2168,7 @@ sal_Int32 SAL_CALL ScAccessibleDocument::getForeground(  )
 sal_Int32 SAL_CALL ScAccessibleDocument::getBackground(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     return 
sal_Int32(ScModule::get()->GetColorConfig().GetColorValue(::svtools::DOCCOLOR).nColor);
 }
 
diff --git a/sc/source/ui/Accessibility/AccessibleDocumentPagePreview.cxx 
b/sc/source/ui/Accessibility/AccessibleDocumentPagePreview.cxx
index 1e60087df40f..5b7ab88b86f8 100644
--- a/sc/source/ui/Accessibility/AccessibleDocumentPagePreview.cxx
+++ b/sc/source/ui/Accessibility/AccessibleDocumentPagePreview.cxx
@@ -1252,7 +1252,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessibleDocumentPagePreview::getAcces
     if (containsPoint(rPoint))
     {
         SolarMutexGuard aGuard;
-        IsObjectValid();
+        ensureAlive();
 
         if ( mpViewShell )
         {
@@ -1312,7 +1312,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessibleDocumentPagePreview::getAcces
 void SAL_CALL ScAccessibleDocumentPagePreview::grabFocus()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (getAccessibleParent().is())
     {
         uno::Reference<XAccessibleComponent> 
xAccessibleComponent(getAccessibleParent()->getAccessibleContext(), 
uno::UNO_QUERY);
@@ -1329,7 +1329,7 @@ void SAL_CALL ScAccessibleDocumentPagePreview::grabFocus()
 sal_Int64 SAL_CALL ScAccessibleDocumentPagePreview::getAccessibleChildCount()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     sal_Int64 nRet = 0;
     if ( mpViewShell )
@@ -1344,7 +1344,7 @@ sal_Int64 SAL_CALL 
ScAccessibleDocumentPagePreview::getAccessibleChildCount()
 uno::Reference<XAccessible> SAL_CALL 
ScAccessibleDocumentPagePreview::getAccessibleChild(sal_Int64 nIndex)
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     uno::Reference<XAccessible> xAccessible;
 
     if ( mpViewShell )
diff --git a/sc/source/ui/Accessibility/AccessibleEditObject.cxx 
b/sc/source/ui/Accessibility/AccessibleEditObject.cxx
index d903b9d43218..c1ab7c135978 100644
--- a/sc/source/ui/Accessibility/AccessibleEditObject.cxx
+++ b/sc/source/ui/Accessibility/AccessibleEditObject.cxx
@@ -173,7 +173,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessibleEditObject::getAccessibleAtPo
     if (containsPoint(rPoint))
     {
         SolarMutexGuard aGuard;
-        IsObjectValid();
+        ensureAlive();
 
         CreateTextHelper();
 
@@ -248,7 +248,7 @@ sal_Int64 SAL_CALL
     ScAccessibleEditObject::getAccessibleChildCount()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     CreateTextHelper();
     return mpTextHelper->GetChildCount();
 }
@@ -257,7 +257,7 @@ uno::Reference< XAccessible > SAL_CALL
     ScAccessibleEditObject::getAccessibleChild(sal_Int64 nIndex)
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     CreateTextHelper();
     return mpTextHelper->GetChild(nIndex);
 }
diff --git a/sc/source/ui/Accessibility/AccessiblePageHeader.cxx 
b/sc/source/ui/Accessibility/AccessiblePageHeader.cxx
index c7a3d4cf8297..4fced4eb1c9f 100644
--- a/sc/source/ui/Accessibility/AccessiblePageHeader.cxx
+++ b/sc/source/ui/Accessibility/AccessiblePageHeader.cxx
@@ -138,7 +138,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePageHeader::getAccessibleAtPo
     if (containsPoint(aPoint))
     {
         SolarMutexGuard aGuard;
-        IsObjectValid();
+        ensureAlive();
 
         sal_Int64 nCount(getAccessibleChildCount()); // fill the areas
 
@@ -162,7 +162,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePageHeader::getAccessibleAtPo
 void SAL_CALL ScAccessiblePageHeader::grabFocus()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (getAccessibleParent().is())
     {
         uno::Reference<XAccessibleComponent> 
xAccessibleComponent(getAccessibleParent()->getAccessibleContext(), 
uno::UNO_QUERY);
@@ -176,7 +176,7 @@ void SAL_CALL ScAccessiblePageHeader::grabFocus()
 sal_Int64 SAL_CALL ScAccessiblePageHeader::getAccessibleChildCount()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if((mnChildCount < 0) && mpViewShell)
     {
@@ -206,7 +206,7 @@ sal_Int64 SAL_CALL 
ScAccessiblePageHeader::getAccessibleChildCount()
 uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePageHeader::getAccessibleChild( sal_Int64 nIndex )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     uno::Reference<XAccessible> xRet;
 
diff --git a/sc/source/ui/Accessibility/AccessiblePageHeaderArea.cxx 
b/sc/source/ui/Accessibility/AccessiblePageHeaderArea.cxx
index 845cdbc5d884..95b185345f78 100644
--- a/sc/source/ui/Accessibility/AccessiblePageHeaderArea.cxx
+++ b/sc/source/ui/Accessibility/AccessiblePageHeaderArea.cxx
@@ -102,7 +102,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePageHeaderArea::getAccessible
     if (containsPoint(rPoint))
     {
         SolarMutexGuard aGuard;
-        IsObjectValid();
+        ensureAlive();
 
         if(!mpTextHelper)
             CreateTextHelper();
@@ -119,7 +119,7 @@ sal_Int64 SAL_CALL
     ScAccessiblePageHeaderArea::getAccessibleChildCount()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (!mpTextHelper)
         CreateTextHelper();
     return mpTextHelper->GetChildCount();
@@ -129,7 +129,7 @@ uno::Reference< XAccessible > SAL_CALL
     ScAccessiblePageHeaderArea::getAccessibleChild(sal_Int64 nIndex)
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (!mpTextHelper)
         CreateTextHelper();
     return mpTextHelper->GetChild(nIndex);
diff --git a/sc/source/ui/Accessibility/AccessiblePreviewCell.cxx 
b/sc/source/ui/Accessibility/AccessiblePreviewCell.cxx
index c0aefc808cc8..82bfacca871f 100644
--- a/sc/source/ui/Accessibility/AccessiblePreviewCell.cxx
+++ b/sc/source/ui/Accessibility/AccessiblePreviewCell.cxx
@@ -95,7 +95,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePreviewCell::getAccessibleAtP
     if (containsPoint(rPoint))
     {
         SolarMutexGuard aGuard;
-        IsObjectValid();
+        ensureAlive();
 
         if(!mpTextHelper)
             CreateTextHelper();
@@ -109,7 +109,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePreviewCell::getAccessibleAtP
 void SAL_CALL ScAccessiblePreviewCell::grabFocus()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (getAccessibleParent().is())
     {
         uno::Reference<XAccessibleComponent> 
xAccessibleComponent(getAccessibleParent()->getAccessibleContext(), 
uno::UNO_QUERY);
@@ -123,7 +123,7 @@ void SAL_CALL ScAccessiblePreviewCell::grabFocus()
 sal_Int64 SAL_CALL ScAccessiblePreviewCell::getAccessibleChildCount()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (!mpTextHelper)
         CreateTextHelper();
     return mpTextHelper->GetChildCount();
@@ -132,7 +132,7 @@ sal_Int64 SAL_CALL 
ScAccessiblePreviewCell::getAccessibleChildCount()
 uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePreviewCell::getAccessibleChild(sal_Int64 nIndex)
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (!mpTextHelper)
         CreateTextHelper();
     return mpTextHelper->GetChild(nIndex);
diff --git a/sc/source/ui/Accessibility/AccessiblePreviewHeaderCell.cxx 
b/sc/source/ui/Accessibility/AccessiblePreviewHeaderCell.cxx
index 670d45ff0cb9..843e61f611e1 100644
--- a/sc/source/ui/Accessibility/AccessiblePreviewHeaderCell.cxx
+++ b/sc/source/ui/Accessibility/AccessiblePreviewHeaderCell.cxx
@@ -131,7 +131,7 @@ void SAL_CALL ScAccessiblePreviewHeaderCell::release()
 uno::Any SAL_CALL ScAccessiblePreviewHeaderCell::getCurrentValue()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     double fValue(0.0);
     if (mbColumnHeader)
@@ -151,7 +151,7 @@ sal_Bool SAL_CALL 
ScAccessiblePreviewHeaderCell::setCurrentValue( const uno::Any
 uno::Any SAL_CALL ScAccessiblePreviewHeaderCell::getMaximumValue()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     double fValue(0.0);
     ScDocument& rDoc = mpViewShell->GetDocument();
@@ -181,7 +181,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePreviewHeaderCell::getAccessi
     if (containsPoint(rPoint))
     {
         SolarMutexGuard aGuard;
-        IsObjectValid();
+        ensureAlive();
 
         if(!mxTextHelper)
             CreateTextHelper();
@@ -195,7 +195,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePreviewHeaderCell::getAccessi
 void SAL_CALL ScAccessiblePreviewHeaderCell::grabFocus()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (getAccessibleParent().is())
     {
         uno::Reference<XAccessibleComponent> 
xAccessibleComponent(getAccessibleParent()->getAccessibleContext(), 
uno::UNO_QUERY);
@@ -209,7 +209,7 @@ void SAL_CALL ScAccessiblePreviewHeaderCell::grabFocus()
 sal_Int64 SAL_CALL ScAccessiblePreviewHeaderCell::getAccessibleChildCount()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (!mxTextHelper)
         CreateTextHelper();
     return mxTextHelper->GetChildCount();
@@ -218,7 +218,7 @@ sal_Int64 SAL_CALL 
ScAccessiblePreviewHeaderCell::getAccessibleChildCount()
 uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePreviewHeaderCell::getAccessibleChild(sal_Int64 nIndex)
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (!mxTextHelper)
         CreateTextHelper();
     return mxTextHelper->GetChild(nIndex);
diff --git a/sc/source/ui/Accessibility/AccessiblePreviewTable.cxx 
b/sc/source/ui/Accessibility/AccessiblePreviewTable.cxx
index 791c3a7d7836..429dffe13783 100644
--- a/sc/source/ui/Accessibility/AccessiblePreviewTable.cxx
+++ b/sc/source/ui/Accessibility/AccessiblePreviewTable.cxx
@@ -122,7 +122,7 @@ void SAL_CALL ScAccessiblePreviewTable::release()
 sal_Int32 SAL_CALL ScAccessiblePreviewTable::getAccessibleRowCount()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     FillTableInfo();
 
@@ -135,7 +135,7 @@ sal_Int32 SAL_CALL 
ScAccessiblePreviewTable::getAccessibleRowCount()
 sal_Int32 SAL_CALL ScAccessiblePreviewTable::getAccessibleColumnCount()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     FillTableInfo();
 
@@ -168,7 +168,7 @@ OUString SAL_CALL 
ScAccessiblePreviewTable::getAccessibleColumnDescription( sal_
 sal_Int32 SAL_CALL ScAccessiblePreviewTable::getAccessibleRowExtentAt( 
sal_Int32 nRow, sal_Int32 nColumn )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     FillTableInfo();
 
@@ -199,7 +199,7 @@ sal_Int32 SAL_CALL 
ScAccessiblePreviewTable::getAccessibleRowExtentAt( sal_Int32
 sal_Int32 SAL_CALL ScAccessiblePreviewTable::getAccessibleColumnExtentAt( 
sal_Int32 nRow, sal_Int32 nColumn )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     FillTableInfo();
 
@@ -278,7 +278,7 @@ sal_Bool SAL_CALL 
ScAccessiblePreviewTable::isAccessibleColumnSelected( sal_Int3
 uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePreviewTable::getAccessibleCellAt( sal_Int32 nRow, sal_Int32 
nColumn )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     FillTableInfo();
 
@@ -331,7 +331,7 @@ sal_Bool SAL_CALL 
ScAccessiblePreviewTable::isAccessibleSelected( sal_Int32 nRow
 {
     //  in the page preview, there is no selection
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     FillTableInfo();
 
@@ -345,7 +345,7 @@ sal_Bool SAL_CALL 
ScAccessiblePreviewTable::isAccessibleSelected( sal_Int32 nRow
 sal_Int64 SAL_CALL ScAccessiblePreviewTable::getAccessibleIndex( sal_Int32 
nRow, sal_Int32 nColumn )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     FillTableInfo();
 
@@ -360,7 +360,7 @@ sal_Int64 SAL_CALL 
ScAccessiblePreviewTable::getAccessibleIndex( sal_Int32 nRow,
 sal_Int32 SAL_CALL ScAccessiblePreviewTable::getAccessibleRow( sal_Int64 
nChildIndex )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     FillTableInfo();
 
@@ -374,7 +374,7 @@ sal_Int32 SAL_CALL 
ScAccessiblePreviewTable::getAccessibleRow( sal_Int64 nChildI
 sal_Int32 SAL_CALL ScAccessiblePreviewTable::getAccessibleColumn( sal_Int64 
nChildIndex )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     FillTableInfo();
 
@@ -393,7 +393,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePreviewTable::getAccessibleAt
     if (containsPoint(aPoint))
     {
         SolarMutexGuard aGuard;
-        IsObjectValid();
+        ensureAlive();
 
         FillTableInfo();
 
@@ -438,7 +438,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePreviewTable::getAccessibleAt
 void SAL_CALL ScAccessiblePreviewTable::grabFocus()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (getAccessibleParent().is())
     {
         uno::Reference<XAccessibleComponent> 
xAccessibleComponent(getAccessibleParent()->getAccessibleContext(), 
uno::UNO_QUERY);
@@ -452,7 +452,7 @@ void SAL_CALL ScAccessiblePreviewTable::grabFocus()
 sal_Int64 SAL_CALL ScAccessiblePreviewTable::getAccessibleChildCount()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     FillTableInfo();
 
@@ -465,7 +465,7 @@ sal_Int64 SAL_CALL 
ScAccessiblePreviewTable::getAccessibleChildCount()
 uno::Reference< XAccessible > SAL_CALL 
ScAccessiblePreviewTable::getAccessibleChild( sal_Int64 nIndex )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     FillTableInfo();
 
diff --git a/sc/source/ui/Accessibility/AccessibleSpreadsheet.cxx 
b/sc/source/ui/Accessibility/AccessibleSpreadsheet.cxx
index a98ac677605e..b3198242eaf1 100644
--- a/sc/source/ui/Accessibility/AccessibleSpreadsheet.cxx
+++ b/sc/source/ui/Accessibility/AccessibleSpreadsheet.cxx
@@ -776,7 +776,7 @@ void ScAccessibleSpreadsheet::CommitFocusCell(const 
ScAddress &aNewCell)
 uno::Reference< XAccessibleTable > SAL_CALL 
ScAccessibleSpreadsheet::getAccessibleRowHeaders(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     uno::Reference< XAccessibleTable > xAccessibleTable;
     if( mpDoc && mbIsSpreadsheet )
     {
@@ -795,7 +795,7 @@ uno::Reference< XAccessibleTable > SAL_CALL 
ScAccessibleSpreadsheet::getAccessib
 uno::Reference< XAccessibleTable > SAL_CALL 
ScAccessibleSpreadsheet::getAccessibleColumnHeaders(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     uno::Reference< XAccessibleTable > xAccessibleTable;
     if( mpDoc && mbIsSpreadsheet )
     {
@@ -814,7 +814,7 @@ uno::Reference< XAccessibleTable > SAL_CALL 
ScAccessibleSpreadsheet::getAccessib
 uno::Sequence< sal_Int32 > SAL_CALL 
ScAccessibleSpreadsheet::getSelectedAccessibleRows(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     uno::Sequence<sal_Int32> aSequence;
     if (IsFormulaMode())
     {
@@ -844,7 +844,7 @@ uno::Sequence< sal_Int32 > SAL_CALL 
ScAccessibleSpreadsheet::getSelectedAccessib
 uno::Sequence< sal_Int32 > SAL_CALL 
ScAccessibleSpreadsheet::getSelectedAccessibleColumns(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     uno::Sequence<sal_Int32> aSequence;
     if (IsFormulaMode() || !mpViewShell)
         return aSequence;
@@ -868,7 +868,7 @@ uno::Sequence< sal_Int32 > SAL_CALL 
ScAccessibleSpreadsheet::getSelectedAccessib
 sal_Bool SAL_CALL ScAccessibleSpreadsheet::isAccessibleRowSelected( sal_Int32 
nRow )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (IsFormulaMode())
     {
         return false;
@@ -889,7 +889,7 @@ sal_Bool SAL_CALL 
ScAccessibleSpreadsheet::isAccessibleRowSelected( sal_Int32 nR
 sal_Bool SAL_CALL ScAccessibleSpreadsheet::isAccessibleColumnSelected( 
sal_Int32 nColumn )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if (IsFormulaMode())
     {
@@ -955,7 +955,7 @@ rtl::Reference<ScAccessibleCell> 
ScAccessibleSpreadsheet::GetAccessibleCellAt(sa
 uno::Reference< XAccessible > SAL_CALL 
ScAccessibleSpreadsheet::getAccessibleCellAt( sal_Int32 nRow, sal_Int32 nColumn 
)
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (!IsFormulaMode())
     {
         if (nRow > (maRange.aEnd.Row() - maRange.aStart.Row()) ||
@@ -971,7 +971,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessibleSpreadsheet::getAccessibleCel
 sal_Bool SAL_CALL ScAccessibleSpreadsheet::isAccessibleSelected( sal_Int32 
nRow, sal_Int32 nColumn )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if (IsFormulaMode())
     {
@@ -999,7 +999,7 @@ uno::Reference< XAccessible > SAL_CALL 
ScAccessibleSpreadsheet::getAccessibleAtP
     if (containsPoint(rPoint))
     {
         SolarMutexGuard aGuard;
-        IsObjectValid();
+        ensureAlive();
         if (mpViewShell)
         {
             SCCOL nX;
@@ -1035,7 +1035,7 @@ sal_Int32 SAL_CALL 
ScAccessibleSpreadsheet::getForeground(  )
 sal_Int32 SAL_CALL ScAccessibleSpreadsheet::getBackground(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     return 
sal_Int32(ScModule::get()->GetColorConfig().GetColorValue(::svtools::DOCCOLOR).nColor);
 }
 
@@ -1090,7 +1090,7 @@ sal_Int64 SAL_CALL 
ScAccessibleSpreadsheet::getAccessibleStateSet()
 void SAL_CALL ScAccessibleSpreadsheet::selectAccessibleChild( sal_Int64 
nChildIndex )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (nChildIndex < 0 || nChildIndex >= getAccessibleChildCount())
         throw lang::IndexOutOfBoundsException();
 
@@ -1107,7 +1107,7 @@ void SAL_CALL
         ScAccessibleSpreadsheet::clearAccessibleSelection(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (mpViewShell && !IsFormulaMode())
         mpViewShell->Unmark();
 }
@@ -1115,7 +1115,7 @@ void SAL_CALL
 void SAL_CALL ScAccessibleSpreadsheet::selectAllAccessibleChildren(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     if (!mpViewShell)
         return;
 
@@ -1136,7 +1136,7 @@ sal_Int64 SAL_CALL
         ScAccessibleSpreadsheet::getSelectedAccessibleChildCount(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     sal_Int64 nResult(0);
     if (mpViewShell)
     {
@@ -1163,7 +1163,7 @@ uno::Reference<XAccessible > SAL_CALL
         ScAccessibleSpreadsheet::getSelectedAccessibleChild( sal_Int64 
nSelectedChildIndex )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     uno::Reference < XAccessible > xAccessible;
     if (IsFormulaMode())
     {
@@ -1199,7 +1199,7 @@ uno::Reference<XAccessible > SAL_CALL
 void SAL_CALL ScAccessibleSpreadsheet::deselectAccessibleChild( sal_Int64 
nChildIndex )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if (nChildIndex < 0 || nChildIndex >= getAccessibleChildCount())
         throw lang::IndexOutOfBoundsException();
diff --git a/sc/source/ui/Accessibility/AccessibleTableBase.cxx 
b/sc/source/ui/Accessibility/AccessibleTableBase.cxx
index 316b92567182..6ad24f61a706 100644
--- a/sc/source/ui/Accessibility/AccessibleTableBase.cxx
+++ b/sc/source/ui/Accessibility/AccessibleTableBase.cxx
@@ -91,14 +91,14 @@ void SAL_CALL ScAccessibleTableBase::release()
 sal_Int32 SAL_CALL ScAccessibleTableBase::getAccessibleRowCount(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     return maRange.aEnd.Row() - maRange.aStart.Row() + 1;
 }
 
 sal_Int32 SAL_CALL ScAccessibleTableBase::getAccessibleColumnCount(  )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
     return maRange.aEnd.Col() - maRange.aStart.Col() + 1;
 }
 
@@ -127,7 +127,7 @@ OUString SAL_CALL 
ScAccessibleTableBase::getAccessibleColumnDescription( sal_Int
 sal_Int32 SAL_CALL ScAccessibleTableBase::getAccessibleRowExtentAt( sal_Int32 
nRow, sal_Int32 nColumn )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if ((nColumn > (maRange.aEnd.Col() - maRange.aStart.Col())) || (nColumn < 
0) ||
         (nRow > (maRange.aEnd.Row() - maRange.aStart.Row())) || (nRow < 0))
@@ -160,7 +160,7 @@ sal_Int32 SAL_CALL 
ScAccessibleTableBase::getAccessibleRowExtentAt( sal_Int32 nR
 sal_Int32 SAL_CALL ScAccessibleTableBase::getAccessibleColumnExtentAt( 
sal_Int32 nRow, sal_Int32 nColumn )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if ((nColumn > (maRange.aEnd.Col() - maRange.aStart.Col())) || (nColumn < 
0) ||
         (nRow > (maRange.aEnd.Row() - maRange.aStart.Row())) || (nRow < 0))
@@ -266,7 +266,7 @@ sal_Bool SAL_CALL 
ScAccessibleTableBase::isAccessibleSelected( sal_Int32 /* nRow
 sal_Int64 SAL_CALL ScAccessibleTableBase::getAccessibleIndex( sal_Int32 nRow, 
sal_Int32 nColumn )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if (nRow > (maRange.aEnd.Row() - maRange.aStart.Row()) ||
         nRow < 0 ||
@@ -282,7 +282,7 @@ sal_Int64 SAL_CALL 
ScAccessibleTableBase::getAccessibleIndex( sal_Int32 nRow, sa
 sal_Int32 SAL_CALL ScAccessibleTableBase::getAccessibleRow( sal_Int64 
nChildIndex )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if (nChildIndex >= getAccessibleChildCount() || nChildIndex < 0)
         throw lang::IndexOutOfBoundsException();
@@ -293,7 +293,7 @@ sal_Int32 SAL_CALL ScAccessibleTableBase::getAccessibleRow( 
sal_Int64 nChildInde
 sal_Int32 SAL_CALL ScAccessibleTableBase::getAccessibleColumn( sal_Int64 
nChildIndex )
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if (nChildIndex >= getAccessibleChildCount() || nChildIndex < 0)
         throw lang::IndexOutOfBoundsException();
@@ -306,7 +306,7 @@ sal_Int32 SAL_CALL 
ScAccessibleTableBase::getAccessibleColumn( sal_Int64 nChildI
 sal_Int64 SAL_CALL ScAccessibleTableBase::getAccessibleChildCount()
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     // FIXME: representing rows & columns this way is a plain and simple 
madness.
     // this needs a radical re-think.
@@ -321,7 +321,7 @@ uno::Reference< XAccessible > SAL_CALL
     ScAccessibleTableBase::getAccessibleChild(sal_Int64 nIndex)
 {
     SolarMutexGuard aGuard;
-    IsObjectValid();
+    ensureAlive();
 
     if (nIndex >= getAccessibleChildCount() || nIndex < 0)
         throw lang::IndexOutOfBoundsException();
diff --git a/sc/source/ui/inc/AccessibleContextBase.hxx 
b/sc/source/ui/inc/AccessibleContextBase.hxx
index 50cc376e0203..bb30cf1a3f4a 100644
--- a/sc/source/ui/inc/AccessibleContextBase.hxx
+++ b/sc/source/ui/inc/AccessibleContextBase.hxx
@@ -180,9 +180,6 @@ protected:
 
     bool IsDefunc() const { return rBHelper.bDisposed; }
 
-    /// @throws css::lang::DisposedException
-    void IsObjectValid() const;
-
     /// Reference to the parent object.
     css::uno::Reference<css::accessibility::XAccessible> mxParent;
 

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