4 files changed, 11 insertions, 0 deletions
diff --git a/vcl/source/app/scheduler.cxx b/vcl/source/app/scheduler.cxx
index c2a3b07d4d3a..23bba5d7a25e 100644
--- a/vcl/source/app/scheduler.cxx
+++ b/vcl/source/app/scheduler.cxx
@@ -609,6 +609,9 @@ void Task::SetPriority(TaskPriority ePriority)
 
 Task& Task::operator=( const Task& rTask )
 {
+    if(this == &rTask)
+        return *this;
+
     if ( IsActive() )
         Stop();
 
diff --git a/vcl/source/window/accel.cxx b/vcl/source/window/accel.cxx
index 3a5e31baf8d2..0b16a053730f 100644
--- a/vcl/source/window/accel.cxx
+++ b/vcl/source/window/accel.cxx
@@ -281,6 +281,8 @@ Accelerator* Accelerator::GetAccel( sal_uInt16 nItemId ) const
 
 Accelerator& Accelerator::operator=( const Accelerator& rAccel )
 {
+    if(this == &rAccel)
+        return *this;
 
     // assign new data
     maCurKeyCode    = vcl::KeyCode();
diff --git a/vcl/source/window/menu.cxx b/vcl/source/window/menu.cxx
index 9d7c5cc9e3d2..516d5930d183 100644
--- a/vcl/source/window/menu.cxx
+++ b/vcl/source/window/menu.cxx
@@ -1166,6 +1166,9 @@ OString Menu::GetHelpId( sal_uInt16 nItemId ) const
 
 Menu& Menu::operator=( const Menu& rMenu )
 {
+    if(this == &rMenu)
+        return *this;
+
     // clean up
     Clear();
 
diff --git a/vcl/unx/generic/printer/jobdata.cxx b/vcl/unx/generic/printer/jobdata.cxx
index 8f2b0018ca07..02d10cf48077 100644
--- a/vcl/unx/generic/printer/jobdata.cxx
+++ b/vcl/unx/generic/printer/jobdata.cxx
@@ -29,6 +29,9 @@ using namespace psp;
 
 JobData& JobData::operator=(const JobData& rRight)
 {
+    if(this == &rRight)
+        return *this;
+
     m_nCopies               = rRight.m_nCopies;
     m_bCollate              = rRight.m_bCollate;
     m_nLeftMarginAdjust     = rRight.m_nLeftMarginAdjust;