catch exception by constant reference

27 files changed, 155 insertions, 157 deletions

diff --git a/extensions/source/bibliography/bibload.cxx b/extensions/source/bibliography/bibload.cxx
index c80c81e51aaa..3ae659d6de38 100644
--- a/extensions/source/bibliography/bibload.cxx
+++ b/extensions/source/bibliography/bibload.cxx
@@ -338,7 +338,7 @@ void BibliographyLoader::loadView(const Reference< XFrame > & rFrame, const rtl:
             Any a = xPropSet->getPropertyValue( OUString( RTL_CONSTASCII_USTRINGPARAM( "LayoutManager" )));
             a >>= xLayoutManager;
         }
-        catch ( uno::Exception& )
+        catch ( const uno::Exception& )
         {
         }
     }
diff --git a/extensions/source/bibliography/framectr.cxx b/extensions/source/bibliography/framectr.cxx
index 744c57a414e0..c645c9af8718 100644
--- a/extensions/source/bibliography/framectr.cxx
+++ b/extensions/source/bibliography/framectr.cxx
@@ -406,7 +406,7 @@ sal_Bool BibFrameController_Impl::SaveModified(const Reference< form::runtime::X
                 _xCursor->updateRow();
             bResult = sal_True;
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("SaveModified: Exception occurred!");
         }
@@ -594,7 +594,7 @@ void BibFrameController_Impl::dispatch(const util::URL& _rURL, const uno::Sequen
                     Reference< XResultSetUpdate >  xUpdateCursor( pDatMan->getForm(), UNO_QUERY );
                     xUpdateCursor->moveToInsertRow();
                 }
-                catch(Exception&)
+                catch(const Exception&)
                 {
                     OSL_FAIL("Exception in last() or moveToInsertRow()");
                 }
@@ -634,7 +634,7 @@ void BibFrameController_Impl::dispatch(const util::URL& _rURL, const uno::Sequen
                     if (bSuccess)
                         xUpdateCursor->deleteRow();
                 }
-                catch(Exception&)
+                catch(const Exception&)
                 {
                     bSuccess = sal_False;
                 }
@@ -654,7 +654,7 @@ void BibFrameController_Impl::dispatch(const util::URL& _rURL, const uno::Sequen
                                 // Datensatz bewegen um Stati neu zu setzen
                                 xCursor->first();
                         }
-                        catch(Exception&)
+                        catch(const Exception&)
                         {
                             OSL_FAIL("DeleteRecord : exception caught !");
                         }
diff --git a/extensions/source/bibliography/general.cxx b/extensions/source/bibliography/general.cxx
index 658d68386916..16e2a13d2c24 100644
--- a/extensions/source/bibliography/general.cxx
+++ b/extensions/source/bibliography/general.cxx
@@ -155,7 +155,7 @@ void BibPosListener::cursorMoved(const lang::EventObject& /*aEvent*/) throw( uno
                 uno::Any aVal = xValueAcc->getByName(uTypeMapping);
                 uno::Reference< uno::XInterface >  xInt = *(uno::Reference< uno::XInterface > *)aVal.getValue();
                 uno::Reference< sdb::XColumn >  xCol(xInt, UNO_QUERY);
-                DBG_ASSERT(xCol.is(), "BibPosListener::positioned : invalid column (no sdb::XColumn) !");
+                DBG_ASSERT(xCol.is(), "BibPosListener::cursorMoved : invalid column (no sdb::XColumn) !");
                 if (xCol.is())
                 {
                     nTempVal = xCol->getShort();
@@ -179,10 +179,9 @@ void BibPosListener::cursorMoved(const lang::EventObject& /*aEvent*/) throw( uno
             }
         }
     }
-    catch(Exception& rEx)
+    catch(const Exception&)
     {
-        (void) rEx; // make compiler happy
-        OSL_FAIL("BibPosListener::positioned: something went wrong !");
+        OSL_FAIL("BibPosListener::cursorMoved: something went wrong !");
     }
 }
 
diff --git a/extensions/source/config/ldap/ldapuserprofilebe.cxx b/extensions/source/config/ldap/ldapuserprofilebe.cxx
index 981e7e2b338d..3f59431ab224 100644
--- a/extensions/source/config/ldap/ldapuserprofilebe.cxx
+++ b/extensions/source/config/ldap/ldapuserprofilebe.cxx
@@ -147,7 +147,7 @@ bool LdapUserProfileBe::readLdapConfiguration(
         getLdapStringParam(xAccess, kUser, definition->mAnonUser);
         getLdapStringParam(xAccess, kPassword, definition->mAnonCredentials);
     }
-    catch (uno::Exception & e)
+    catch (const uno::Exception & e)
     {
         OSL_TRACE("LdapUserProfileBackend: access to configuration data failed: %s",
                 rtl::OUStringToOString( e.Message, RTL_TEXTENCODING_ASCII_US ).getStr() );
diff --git a/extensions/source/dbpilots/commonpagesdbp.cxx b/extensions/source/dbpilots/commonpagesdbp.cxx
index ca7740c9fb89..eb455bc2a624 100644
--- a/extensions/source/dbpilots/commonpagesdbp.cxx
+++ b/extensions/source/dbpilots/commonpagesdbp.cxx
@@ -154,7 +154,7 @@ namespace dbp
                     }
             }
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("OTableSelectionPage::initializePage: caught an exception!");
         }
@@ -189,7 +189,7 @@ namespace dbp
             if (!updateContext())
                 return sal_False;
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("OTableSelectionPage::commitPage: caught an exception!");
         }
@@ -311,10 +311,10 @@ namespace dbp
                     }
                 }
             }
-            catch(SQLContext& e) { aSQLException <<= e; }
-            catch(SQLWarning& e) { aSQLException <<= e; }
-            catch(SQLException& e) { aSQLException <<= e; }
-            catch (Exception&)
+            catch(const SQLContext& e) { aSQLException <<= e; }
+            catch(const SQLWarning& e) { aSQLException <<= e; }
+            catch(const SQLException& e) { aSQLException <<= e; }
+            catch (const Exception&)
             {
                 OSL_FAIL("OTableSelectionPage::implFillTables: could not fill the table list!");
             }
@@ -343,10 +343,10 @@ namespace dbp
                         aQueryNames = xQueries->getElementNames();
                 }
             }
-            catch(SQLContext& e) { aSQLException <<= e; }
-            catch(SQLWarning& e) { aSQLException <<= e; }
-            catch(SQLException& e) { aSQLException <<= e; }
-            catch (Exception&)
+            catch(const SQLContext& e) { aSQLException <<= e; }
+            catch(const SQLWarning& e) { aSQLException <<= e; }
+            catch(const SQLException& e) { aSQLException <<= e; }
+            catch (const Exception&)
             {
                 OSL_FAIL("OTableSelectionPage::implFillTables: could not fill the table list!");
             }
@@ -363,7 +363,7 @@ namespace dbp
                 if ( xHandler.is() )
                     xHandler->handle(xRequest);
             }
-            catch(Exception&) { }
+            catch(const Exception&) { }
             return;
         }
 
@@ -387,7 +387,7 @@ namespace dbp
             if (m_xDSContext.is())
                 fillListBox(m_aDatasource, m_xDSContext->getElementNames());
         }
-        catch (Exception&)
+        catch (const Exception&)
         {
             OSL_FAIL("OTableSelectionPage::implCollectDatasource: could not collect the data source names!");
         }
diff --git a/extensions/source/dbpilots/controlwizard.cxx b/extensions/source/dbpilots/controlwizard.cxx
index 899acca822a6..234c0fd0c088 100644
--- a/extensions/source/dbpilots/controlwizard.cxx
+++ b/extensions/source/dbpilots/controlwizard.cxx
@@ -306,7 +306,7 @@ namespace dbp
         {
             getContext().xObjectModel->getPropertyValue(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("ClassId"))) >>= nClassId;
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("OControlWizard::activate: could not obtain the class id!");
         }
@@ -430,7 +430,7 @@ namespace dbp
             }
             m_aContext.xDrawPage = xPage;
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("OControlWizard::implDeterminePage: caught an exception!");
         }
@@ -452,7 +452,7 @@ namespace dbp
             m_aContext.xDatasourceContext = Reference< XNameAccess >(xContext, UNO_QUERY);
             DBG_ASSERT(m_aContext.xDatasourceContext.is() || !xContext.is(), "OControlWizard::implGetDSContext: invalid database context (missing the XNameAccess)!");
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("OControlWizard::implGetDSContext: invalid database context!");
         }
@@ -524,7 +524,7 @@ namespace dbp
             if (getServiceFactory().is())
                 xHandler = Reference< XInteractionHandler >(getServiceFactory()->createInstance(sInteractionHandlerServiceName), UNO_QUERY);
         }
-        catch(Exception&) { }
+        catch(const Exception&) { }
         if (!xHandler.is())
             ShowServiceNotAvailableError(_pWindow, sInteractionHandlerServiceName, sal_True);
         return xHandler;
@@ -642,7 +642,7 @@ namespace dbp
                         xColumns->getByName(*pBegin) >>= xColumn;
                         xColumn->getPropertyValue(s_sFieldTypeProperty) >>= nFieldType;
                     }
-                    catch(Exception&)
+                    catch(const Exception&)
                     {
                         OSL_FAIL("OControlWizard::initContext: unexpected exception while gathering column information!");
                     }
@@ -650,10 +650,10 @@ namespace dbp
                 }
             }
         }
-        catch(SQLContext& e) { aSQLException <<= e; }
-        catch(SQLWarning& e) { aSQLException <<= e; }
-        catch(SQLException& e) { aSQLException <<= e; }
-        catch(Exception&)
+        catch(const SQLContext& e) { aSQLException <<= e; }
+        catch(const SQLWarning& e) { aSQLException <<= e; }
+        catch(const SQLException& e) { aSQLException <<= e; }
+        catch(const Exception&)
         {
             OSL_FAIL("OControlWizard::initContext: could not retrieve the control context (caught an exception)!");
         }
@@ -678,7 +678,7 @@ namespace dbp
             {
                 xHandler->handle(xRequest);
             }
-            catch(Exception&) { }
+            catch(const Exception&) { }
             return sal_False;
         }
 
@@ -706,7 +706,7 @@ namespace dbp
                 );
             }
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("OControlWizard::commitControlSettings: could not commit the basic control settings!");
         }
@@ -731,7 +731,7 @@ namespace dbp
                 _pSettings->sControlLabel = sControlLabel;
             }
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("OControlWizard::initControlSettings: could not retrieve the basic control settings!");
         }
diff --git a/extensions/source/dbpilots/dbptools.cxx b/extensions/source/dbpilots/dbptools.cxx
index 970bb59d6b9a..8df666e8ec9b 100644
--- a/extensions/source/dbpilots/dbptools.cxx
+++ b/extensions/source/dbpilots/dbptools.cxx
@@ -57,7 +57,7 @@ namespace dbp
             // can't do anything ... no free names
             _rElementsName = sBase;
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("::dbp::disambiguateName: something went (strangely) wrong!");
         }
diff --git a/extensions/source/dbpilots/gridwizard.cxx b/extensions/source/dbpilots/gridwizard.cxx
index f7f867eeac45..3f997295a816 100644
--- a/extensions/source/dbpilots/gridwizard.cxx
+++ b/extensions/source/dbpilots/gridwizard.cxx
@@ -223,7 +223,7 @@ namespace dbp
                     // insert the column
                     xColumnContainer->insertByName(sColumnName, makeAny(xColumn));
                 }
-                catch(Exception&)
+                catch(const Exception&)
                 {
                     OSL_FAIL( ( ::rtl::OString("OGridWizard::implApplySettings: unexpected exception while creating the grid column for field ")
                             += ::rtl::OString(pFormFieldName->getStr(), pFormFieldName->getLength(), osl_getThreadTextEncoding())
diff --git a/extensions/source/dbpilots/groupboxwiz.cxx b/extensions/source/dbpilots/groupboxwiz.cxx
index 2e86570124ff..de3026902aca 100644
--- a/extensions/source/dbpilots/groupboxwiz.cxx
+++ b/extensions/source/dbpilots/groupboxwiz.cxx
@@ -173,7 +173,7 @@ namespace dbp
             OOptionGroupLayouter aLayouter(getServiceFactory());
             aLayouter.doLayout(getContext(), getSettings());
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("OGroupBoxWizard::createRadios: caught an exception while creating the radio shapes!");
         }
diff --git a/extensions/source/dbpilots/listcombowizard.cxx b/extensions/source/dbpilots/listcombowizard.cxx
index 5f7b710173aa..674555fb07a8 100644
--- a/extensions/source/dbpilots/listcombowizard.cxx
+++ b/extensions/source/dbpilots/listcombowizard.cxx
@@ -218,7 +218,7 @@ namespace dbp
             // the bound field
             getContext().xObjectModel->setPropertyValue(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("DataField")), makeAny(::rtl::OUString(getSettings().sLinkedFormField)));
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("OListComboWizard::implApplySettings: could not set the property values for the listbox!");
         }
@@ -277,7 +277,7 @@ namespace dbp
                 if (xColumns.is())
                     aColumnNames = xColumns->getElementNames();
             }
-            catch(Exception&)
+            catch(const Exception&)
             {
                 DBG_ASSERT(!_bNeedIt, "OLinkFieldsPage::initializePage: caught an exception while retrieving the columns!");
             }
@@ -349,7 +349,7 @@ namespace dbp
                 aTableNames = xTables->getElementNames();
             fillListBox(m_aSelectTable, aTableNames);
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("OContentTableSelection::initializePage: could not retrieve the table names!");
         }
diff --git a/extensions/source/nsplugin/source/so_instance.cxx b/extensions/source/nsplugin/source/so_instance.cxx
index 776319b4e93a..273c3db220cc 100644
--- a/extensions/source/nsplugin/source/so_instance.cxx
+++ b/extensions/source/nsplugin/source/so_instance.cxx
@@ -207,7 +207,7 @@ sal_Bool SoPluginInstance::LoadDocument(NSP_HWND hParent)
             if ( xLMProps.is() )
                 xLMProps->setPropertyValue( ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("AutomaticToolbars")), uno::makeAny( (sal_Bool)sal_False ) );
         }
-        catch( uno::Exception& )
+        catch( const uno::Exception& )
         {}
 
         // get frames supplier
@@ -345,10 +345,10 @@ sal_Bool SoPluginInstance::LoadDocument(NSP_HWND hParent)
             xProps->setPropertyValue( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "IsFullScreen" ) ), uno::makeAny( sal_False ) );
             xPres->start();
         }
-        catch( uno::Exception& )
+        catch( const uno::Exception& )
         {}
     }
-    catch( uno::Exception& e )
+    catch( const uno::Exception& e )
     {
         debug_fprintf(NSP_LOG_APPEND, "Unknown exception while loading document in netscape plugin windows\n");
         OString o = OUStringToOString( e.Message, RTL_TEXTENCODING_ASCII_US );
@@ -424,7 +424,7 @@ sal_Bool SoPluginInstance::Destroy(void)
                 xCloseable->removeCloseListener( m_xCloseListener );
         }
     }
-    catch( uno::Exception& )
+    catch( const uno::Exception& )
     {}
 
     try
@@ -439,7 +439,7 @@ sal_Bool SoPluginInstance::Destroy(void)
 
         xDocumentCloser->dispose(); // this call should close the document
     }
-    catch( uno::Exception& )
+    catch( const uno::Exception& )
     {
            debug_fprintf(NSP_LOG_APPEND, "print by Nsplugin.exe, could not close the document correctly!\n");
         try
diff --git a/extensions/source/nsplugin/source/so_main.cxx b/extensions/source/nsplugin/source/so_main.cxx
index c450874191ce..127bedf70a76 100644
--- a/extensions/source/nsplugin/source/so_main.cxx
+++ b/extensions/source/nsplugin/source/so_main.cxx
@@ -347,7 +347,7 @@ Reference< lang::XMultiServiceFactory > SAL_CALL start_office(NSP_PIPE_FD read_f
             debug_fprintf(NSP_LOG_APPEND, "Staroffice already start\n");
             return Reference< lang::XMultiServiceFactory >(xRemoteContext->getServiceManager(), UNO_QUERY);
         }
-        catch ( connection::NoConnectException & )
+        catch ( const connection::NoConnectException & )
         {
         }
 
@@ -411,7 +411,7 @@ Reference< lang::XMultiServiceFactory > SAL_CALL start_office(NSP_PIPE_FD read_f
                     xUrlResolver->resolve( sConnectString ), UNO_QUERY_THROW );
                 return Reference< lang::XMultiServiceFactory >(xRemoteContext->getServiceManager(), UNO_QUERY);
             }
-            catch ( connection::NoConnectException & )
+            catch ( const connection::NoConnectException & )
             {
                 // wait 500 ms, then try to connect again
                 TimeValue tv = { 0 /* secs */, 500000000 /* nanosecs */ };
@@ -421,7 +421,7 @@ Reference< lang::XMultiServiceFactory > SAL_CALL start_office(NSP_PIPE_FD read_f
         debug_fprintf(NSP_LOG_APPEND, "Failed to connect to Staroffice in 2 minutes\n");
         return Reference< lang::XMultiServiceFactory >(NULL);
     }
-    catch ( Exception & e)
+    catch (const Exception & e)
     {
         debug_fprintf(NSP_LOG_APPEND, "unexpected UNO exception caught: ");
         debug_fprintf(NSP_LOG_APPEND, (sal_Char *)e.Message.getStr());
diff --git a/extensions/source/ole/oleobjw.cxx b/extensions/source/ole/oleobjw.cxx
index fbb93706f06a..77e45daf6891 100644
--- a/extensions/source/ole/oleobjw.cxx
+++ b/extensions/source/ole/oleobjw.cxx
@@ -195,7 +195,7 @@ Any SAL_CALL IUnknownWrapper_Impl::invokeGetProperty( const OUString& aPropertyN
         }
         aResult = invokeWithDispIdComTlb( aDescGet, aPropertyName, aParams, aOutParamIndex, aOutParam );
     }
-    catch ( Exception& e )
+    catch ( const Exception& e )
     {
        throw RuntimeException(OUSTR("[automation bridge] unexpected exception in "
                "IUnknownWrapper_Impl::invokeGetProperty ! Message : \n") +
@@ -223,7 +223,7 @@ Any SAL_CALL IUnknownWrapper_Impl::invokePutProperty( const OUString& aPropertyN
         }
         aResult = invokeWithDispIdComTlb( aDescPut, aPropertyName, aParams, aOutParamIndex, aOutParam );
     }
-    catch ( Exception& e )
+    catch ( const Exception& e )
     {
        throw RuntimeException(OUSTR("[automation bridge] unexpected exception in "
                "IUnknownWrapper_Impl::invokePutProperty ! Message : \n") +
@@ -269,23 +269,23 @@ Any SAL_CALL IUnknownWrapper_Impl::invoke( const OUString& aFunctionName,
                                          aOutParam);
         }
     }
-    catch (IllegalArgumentException &)
+    catch (const IllegalArgumentException &)
     {
         throw;
     }
-    catch (CannotConvertException &)
+    catch (const CannotConvertException &)
     {
         throw;
     }
-    catch (InvocationTargetException &)
+    catch (const InvocationTargetException &)
     {
         throw;
     }
-    catch (BridgeRuntimeError & e)
+    catch (const BridgeRuntimeError & e)
     {
          throw RuntimeException(e.message, Reference<XInterface>());
     }
-    catch (Exception & e)
+    catch (const Exception & e)
     {
         throw RuntimeException(OUSTR("[automation bridge] unexpected exception in "
                                      "IUnknownWrapper_Impl::invoke ! Message : \n") +
@@ -447,20 +447,20 @@ void SAL_CALL IUnknownWrapper_Impl::setValue( const OUString& aPropertyName,
             break;
         }
     }
-    catch (CannotConvertException &)
+    catch (const CannotConvertException &)
     {
         throw;
     }
-    catch (UnknownPropertyException &)
+    catch (const UnknownPropertyException &)
     {
         throw;
     }
-    catch (BridgeRuntimeError& e)
+    catch (const BridgeRuntimeError& e)
     {
         throw RuntimeException(
             e.message, Reference<XInterface>());
     }
-    catch (Exception & e)
+    catch (const Exception & e)
     {
         throw RuntimeException(OUSTR("[automation bridge] unexpected exception in "
                                      "IUnknownWrapper_Impl::setValue ! Message : \n") +
@@ -633,16 +633,16 @@ Any SAL_CALL IUnknownWrapper_Impl::getValue( const OUString& aPropertyName )
             break;
         }
     }
-    catch (UnknownPropertyException& )
+    catch ( const UnknownPropertyException& )
     {
         throw;
     }
-    catch (BridgeRuntimeError& e)
+    catch (const BridgeRuntimeError& e)
     {
         throw RuntimeException(
             e.message, Reference<XInterface>());
     }
-    catch (Exception & e)
+    catch (const Exception & e)
     {
         throw RuntimeException(OUSTR("[automation bridge] unexpected exception in "
                                      "IUnknownWrapper_Impl::getValue ! Message : \n") +
@@ -689,11 +689,11 @@ sal_Bool SAL_CALL IUnknownWrapper_Impl::hasMethod( const OUString& aName )
         else
             ret = sal_True;
     }
-    catch (BridgeRuntimeError& e)
+    catch (const BridgeRuntimeError& e)
     {
         throw RuntimeException(e.message, Reference<XInterface>());
     }
-    catch (Exception & e)
+    catch (const Exception & e)
     {
         throw RuntimeException(OUSTR("[automation bridge] unexpected exception in "
                                      "IUnknownWrapper_Impl::hasMethod ! Message : \n") +
@@ -739,11 +739,11 @@ sal_Bool SAL_CALL IUnknownWrapper_Impl::hasProperty( const OUString& aName )
             ret = sal_True;
         }
     }
-    catch (BridgeRuntimeError& e)
+    catch (const BridgeRuntimeError& e)
     {
         throw RuntimeException(e.message, Reference<XInterface>());
     }
-    catch (Exception & e)
+    catch (const Exception & e)
     {
         throw RuntimeException(OUSTR("[automation bridge] unexpected exception in "
                                      "IUnknownWrapper_Impl::hasProperty ! Message : \n") +
@@ -1273,9 +1273,9 @@ void SAL_CALL IUnknownWrapper_Impl::initialize( const Sequence< Any >& aArgument
         // so we should allow to create wrappers for them as well
         pType = getTypeInfo();
     }
-    catch( BridgeRuntimeError& )
+    catch( const BridgeRuntimeError& )
     {}
-    catch( Exception& )
+    catch( const Exception& )
     {}
 
     if ( pType )
@@ -1315,11 +1315,11 @@ void SAL_CALL IUnknownWrapper_Impl::initialize( const Sequence< Any >& aArgument
                     m_sDefaultMember = usName;
             }
         }
-        catch ( BridgeRuntimeError & e )
+        catch ( const BridgeRuntimeError & e )
         {
             throw RuntimeException( e.message, Reference<XInterface>() );
         }
-        catch( Exception& e )
+        catch( const Exception& e )
         {
             throw RuntimeException(
                     OUSTR("[automation bridge] unexpected exception in IUnknownWrapper_Impl::initialiase() error message: \n") + e.Message,
diff --git a/extensions/source/ole/servprov.cxx b/extensions/source/ole/servprov.cxx
index 8204fe7e63a9..cdfb6aafb37b 100644
--- a/extensions/source/ole/servprov.cxx
+++ b/extensions/source/ole/servprov.cxx
@@ -452,7 +452,7 @@ Any SAL_CALL OleConverter_Impl2::createBridge(const Any& modelDepObject,
                 {
                     variantToAny(pVariant, ret);
                 }
-                catch (CannotConvertException & e)
+                catch (const CannotConvertException & e)
                 {
                     throw IllegalArgumentException(
                         e.Message, 0, -1);
diff --git a/extensions/source/ole/unoconversionutilities.hxx b/extensions/source/ole/unoconversionutilities.hxx
index 359009e4d485..4827d690d0e3 100644
--- a/extensions/source/ole/unoconversionutilities.hxx
+++ b/extensions/source/ole/unoconversionutilities.hxx
@@ -392,14 +392,14 @@ void UnoConversionUtilities<T>::variantToAny( const VARIANTARG* pArg, Any& rAny,
                                 Any convAny = conv->convertTo(anySeq, ptype);
                                 rAny = convAny;
                             }
-                            catch (IllegalArgumentException& e)
+                            catch (const IllegalArgumentException& e)
                             {
                                 throw BridgeRuntimeError(
                                     OUSTR("[automation bridge]com.sun.star.lang.IllegalArgumentException "
                                           "in UnoConversionUtilities<T>::variantToAny! Message: ") +
                                     e.Message);
                             }
-                            catch (CannotConvertException& e)
+                            catch (const CannotConvertException& e)
                             {
                                 throw BridgeRuntimeError(
                                     OUSTR("[automation bridge]com.sun.star.script.CannotConvertException "
@@ -582,19 +582,19 @@ void UnoConversionUtilities<T>::variantToAny( const VARIANTARG* pArg, Any& rAny,
                       "The provided VARIANT of type\" ") + OUString::valueOf((sal_Int32) var.vt) +
                 OUSTR("\" is unappropriate for conversion!"), Reference<XInterface>(), -1);
     }
-    catch (CannotConvertException &)
+    catch (const CannotConvertException &)
     {
         throw;
     }
-    catch (IllegalArgumentException &)
+    catch (const IllegalArgumentException &)
     {
         throw;
     }
-    catch (BridgeRuntimeError &)
+    catch (const BridgeRuntimeError &)
     {
          throw;
     }
-    catch (Exception & e)
+    catch (const Exception & e)
     {
         throw BridgeRuntimeError(OUSTR("[automation bridge] unexpected exception in "
                                        "UnoConversionUtilities<T>::variantToAny ! Message : \n") +
@@ -666,19 +666,19 @@ void UnoConversionUtilities<T>::anyToVariant(VARIANT* pVariant, const Any& rAny,
             }
         }
     }
-    catch (IllegalArgumentException &)
+    catch (const IllegalArgumentException &)
     {
         throw;
     }
-    catch (CannotConvertException & )
+    catch (const CannotConvertException &)
     {
         throw;
     }
-    catch (BridgeRuntimeError&)
+    catch (const BridgeRuntimeError&)
     {
         throw;
     }
-    catch(Exception & e)
+    catch(const Exception & e)
     {
         throw BridgeRuntimeError(
             OUSTR("[automation bridge]UnoConversionUtilities<T>::anyToVariant \n"
@@ -998,19 +998,19 @@ void UnoConversionUtilities<T>::anyToVariant(VARIANT* pVariant, const Any& rAny)
 
         }
     }
-    catch (CannotConvertException & )
+    catch (const CannotConvertException &)
     {
         throw;
     }
-    catch (IllegalArgumentException & )
+    catch (const IllegalArgumentException &)
     {
         throw;
     }
-    catch(BridgeRuntimeError&)
+    catch(const BridgeRuntimeError&)
     {
         throw;
     }
-    catch(Exception & e)
+    catch(const Exception & e)
     {
         throw BridgeRuntimeError(
             OUSTR("[automation bridge]UnoConversionUtilities<T>::anyToVariant \n"
@@ -1633,19 +1633,19 @@ void UnoConversionUtilities<T>::variantToAny( const VARIANT* pVariant, Any& rAny
             }
         }
     }
-    catch (IllegalArgumentException & )
+    catch (const IllegalArgumentException &)
     {
         throw;
     }
-    catch (CannotConvertException &)
+    catch (const CannotConvertException &)
     {
         throw;
     }
-    catch (BridgeRuntimeError & )
+    catch (const BridgeRuntimeError &)
     {
          throw;
     }
-    catch (Exception & e)
+    catch (const Exception & e)
     {
         throw BridgeRuntimeError(OUSTR("[automation bridge] unexpected exception in "
                                        "UnoConversionUtilities<T>::variantToAny ! Message : \n") +
@@ -1979,11 +1979,11 @@ bool UnoConversionUtilities<T>::convertValueObject( const VARIANTARG *var, Any&
             throw BridgeRuntimeError(
                 OUSTR("[automation bridge] Conversion of ValueObject failed "));
     }
-    catch (BridgeRuntimeError &)
+    catch (const BridgeRuntimeError &)
     {
          throw;
     }
-    catch (Exception & e)
+    catch (const Exception & e)
     {
         throw BridgeRuntimeError(OUSTR("[automation bridge] unexpected exception in "
                                        "UnoConversionUtilities<T>::convertValueObject ! Message : \n") +
@@ -2120,11 +2120,11 @@ void UnoConversionUtilities<T>::dispatchExObject2Sequence( const VARIANTARG* pva
             throw BridgeRuntimeError(
                 OUSTR("[automation bridge] Conversion of ValueObject failed "));
     }
-    catch (BridgeRuntimeError & )
+    catch (const BridgeRuntimeError &)
     {
         throw;
     }
-    catch (Exception & e)
+    catch (const Exception & e)
     {
         throw BridgeRuntimeError(OUSTR("[automation bridge] unexpected exception in "
                                        "UnoConversionUtilities<T>::convertValueObject ! Message : \n") +
diff --git a/extensions/source/ole/unoobjw.cxx b/extensions/source/ole/unoobjw.cxx
index d87a0f67349f..4672696330d8 100644
--- a/extensions/source/ole/unoobjw.cxx
+++ b/extensions/source/ole/unoobjw.cxx
@@ -297,11 +297,11 @@ STDMETHODIMP InterfaceOleWrapper_Impl::GetIDsOfNames(REFIID /*riid*/,
             }
         }
     }
-    catch(BridgeRuntimeError& )
+    catch(const BridgeRuntimeError&)
     {
         OSL_ASSERT(0);
     }
-    catch(Exception& )
+    catch(const Exception&)
     {
         OSL_ASSERT(0);
     }
@@ -470,7 +470,7 @@ sal_Bool  InterfaceOleWrapper_Impl::getInvocationInfoForCall( DISPID id, Invocat
         try{
             invInfo= inv2->getInfoForName( sMemberName, sal_False);
         }
-        catch( IllegalArgumentException )
+        catch(const IllegalArgumentException&)
         {
             validInfo= sal_False;
         }
@@ -880,12 +880,12 @@ STDMETHODIMP InterfaceOleWrapper_Impl::Invoke(DISPID dispidMember,
         else
             ret = DISP_E_MEMBERNOTFOUND;
     }
-    catch(BridgeRuntimeError& e)
+    catch(const BridgeRuntimeError& e)
     {
         writeExcepinfo(pexcepinfo, e.message);
         ret = DISP_E_EXCEPTION;
     }
-    catch(Exception& e)
+    catch(const Exception& e)
     {
         OUString message= OUSTR("InterfaceOleWrapper_Impl::Invoke : \n") +
                                 e.Message;
@@ -948,17 +948,17 @@ HRESULT InterfaceOleWrapper_Impl::doInvoke( DISPPARAMS * pdispparams, VARIANT *
         if (pvarResult != NULL)
             anyToVariant(pvarResult, returnValue);
     }
-    catch(IllegalArgumentException & e) //XInvocation::invoke
+    catch(const IllegalArgumentException & e) //XInvocation::invoke
     {
         writeExcepinfo(pexcepinfo, e.Message);
         ret = DISP_E_TYPEMISMATCH;
     }
-    catch(CannotConvertException & e) //XInvocation::invoke
+    catch(const CannotConvertException & e) //XInvocation::invoke
     {
         writeExcepinfo(pexcepinfo, e.Message);
         ret = mapCannotConvertException( e, puArgErr);
     }
-    catch(InvocationTargetException &  e) //XInvocation::invoke
+    catch(const InvocationTargetException &  e) //XInvocation::invoke
     {
         const Any& org = e.TargetException;
         Exception excTarget;
@@ -968,17 +968,17 @@ HRESULT InterfaceOleWrapper_Impl::doInvoke( DISPPARAMS * pdispparams, VARIANT *
         writeExcepinfo(pexcepinfo, message);
         ret = DISP_E_EXCEPTION;
     }
-    catch(NoSuchMethodException & e) //XInvocation::invoke
+    catch(const NoSuchMethodException & e) //XInvocation::invoke
     {
         writeExcepinfo(pexcepinfo, e.Message);
         ret = DISP_E_MEMBERNOTFOUND;
     }
-    catch(BridgeRuntimeError & e)
+    catch(const BridgeRuntimeError & e)
     {
         writeExcepinfo(pexcepinfo, e.message);
         ret = DISP_E_EXCEPTION;
     }
-    catch(Exception & e)
+    catch(const Exception & e)
     {
         OUString message= OUSTR("InterfaceOleWrapper_Impl::doInvoke : \n") +
                                 e.Message;
@@ -1008,17 +1008,17 @@ HRESULT InterfaceOleWrapper_Impl::doGetProperty( DISPPARAMS * /*pdispparams*/, V
         if (pvarResult)
             anyToVariant(pvarResult, returnValue);
     }
-    catch(UnknownPropertyException e) //XInvocation::getValue
+    catch(const UnknownPropertyException e) //XInvocation::getValue
     {
         writeExcepinfo(pexcepinfo, e.Message);
         ret = DISP_E_MEMBERNOTFOUND;
     }
-    catch(BridgeRuntimeError& e)
+    catch(const BridgeRuntimeError& e)
     {
         writeExcepinfo(pexcepinfo, e.message);
         ret = DISP_E_EXCEPTION;
     }
-    catch(Exception& e)
+    catch(const Exception& e)
     {
         OUString message= OUSTR("InterfaceOleWrapper_Impl::doGetProperty : \n") +
                                 e.Message;
@@ -1043,15 +1043,15 @@ HRESULT InterfaceOleWrapper_Impl::doSetProperty( DISPPARAMS * /*pdispparams*/, V
     {
         m_xInvocation->setValue( name, params.getConstArray()[0]);
     }
-    catch(UnknownPropertyException )
+    catch(const UnknownPropertyException &)
     {
         ret = DISP_E_MEMBERNOTFOUND;
     }
-    catch(CannotConvertException e)
+    catch(const CannotConvertException &e)
     {
         ret= mapCannotConvertException( e, puArgErr);
     }
-    catch(InvocationTargetException e)
+    catch(const InvocationTargetException &e)
     {
         if (pexcepinfo != NULL)
         {
@@ -1177,12 +1177,12 @@ HRESULT InterfaceOleWrapper_Impl::InvokeGeneral( DISPID dispidMember, unsigned s
             }
         }
     }
-    catch(BridgeRuntimeError & e)
+    catch(const BridgeRuntimeError & e)
     {
         writeExcepinfo(pexcepinfo, e.message);
         ret = DISP_E_EXCEPTION;
     }
-    catch(Exception & e)
+    catch(const Exception & e)
     {
         OUString message= OUSTR("InterfaceOleWrapper_Impl::InvokeGeneral : \n") +
                                 e.Message;
@@ -1578,12 +1578,12 @@ STDMETHODIMP  UnoObjectWrapperRemoteOpt::Invoke ( DISPID dispidMember, REFIID /*
                 ret= DISP_E_MEMBERNOTFOUND;
         }
     }
-    catch(BridgeRuntimeError& e)
+    catch(const BridgeRuntimeError& e)
     {
         writeExcepinfo(pexcepinfo, e.message);
         ret = DISP_E_EXCEPTION;
     }
-    catch(Exception& e)
+    catch(const Exception& e)
     {
         OUString message= OUSTR("UnoObjectWrapperRemoteOpt::Invoke : \n") +
             e.Message;
@@ -1609,7 +1609,7 @@ HRESULT UnoObjectWrapperRemoteOpt::methodInvoke( DISPID /*dispidMember*/, DISPPA
 
 
 // The returned HRESULT is only appropriate for IDispatch::Invoke
-static HRESULT mapCannotConvertException( CannotConvertException e, unsigned int * puArgErr)
+static HRESULT mapCannotConvertException(const CannotConvertException &e, unsigned int * puArgErr)
 {
     HRESULT ret;
     sal_Bool bWriteIndex= sal_True;
diff --git a/extensions/source/plugin/base/multiplx.cxx b/extensions/source/plugin/base/multiplx.cxx
index bb187bf4d90e..f5c1a8507b7d 100644
--- a/extensions/source/plugin/base/multiplx.cxx
+++ b/extensions/source/plugin/base/multiplx.cxx
@@ -190,7 +190,7 @@ if( pCont )                                                                 \
             {                                                               \
                 pListener->MethodName( aEvt );                              \
             }                                                               \
-            catch( RuntimeException& )                                  \
+            catch(const RuntimeException&)                                  \
             {                                                               \
                 /* ignore all usr system exceptions from the listener */    \
             }                                                               \
diff --git a/extensions/source/plugin/base/nfuncs.cxx b/extensions/source/plugin/base/nfuncs.cxx
index 63dc29f3adb8..c14907b5083f 100644
--- a/extensions/source/plugin/base/nfuncs.cxx
+++ b/extensions/source/plugin/base/nfuncs.cxx
@@ -199,9 +199,8 @@ IMPL_LINK( AsynchronousGetURL, getURL, XPlugin_Impl*, pImpl )
                         aUrl,
                         aTarget );
     }
-    catch( ::com::sun::star::plugin::PluginException& e )
+    catch(const ::com::sun::star::plugin::PluginException&)
     {
-        (void)e;
     }
     pImpl->leavePluginCallback();
     delete this;
@@ -323,7 +322,7 @@ extern "C" {
                     );
             pImpl->leavePluginCallback();
         }
-        catch( ::com::sun::star::plugin::PluginException& e )
+        catch( const ::com::sun::star::plugin::PluginException& e )
         {
             pImpl->leavePluginCallback();
             return e.ErrorCode;
@@ -365,7 +364,7 @@ extern "C" {
                                ::com::sun::star::uno::Reference< ::com::sun::star::lang::XEventListener > ( pListener ) );
             pImpl->leavePluginCallback();
         }
-        catch( ::com::sun::star::plugin::PluginException& e )
+        catch( const ::com::sun::star::plugin::PluginException& e )
         {
             pImpl->leavePluginCallback();
             return e.ErrorCode;
@@ -394,7 +393,7 @@ extern "C" {
                          file );
             pImpl->leavePluginCallback();
         }
-        catch( ::com::sun::star::plugin::PluginException& e )
+        catch( const ::com::sun::star::plugin::PluginException& e )
         {
             pImpl->leavePluginCallback();
             return e.ErrorCode;
@@ -479,7 +478,7 @@ extern "C" {
                 displayStatusText( pImpl, ::rtl::OStringToOUString( message, pImpl->getTextEncoding() ) );
             pImpl->leavePluginCallback();
         }
-        catch( ::com::sun::star::plugin::PluginException& )
+        catch( const ::com::sun::star::plugin::PluginException& )
         {
             pImpl->leavePluginCallback();
             return;
@@ -504,7 +503,7 @@ extern "C" {
                     free( pAgent );
                 pAgent = strdup( ::rtl::OUStringToOString( UserAgent, pImpl->getTextEncoding() ).getStr() );
             }
-            catch( ::com::sun::star::plugin::PluginException& )
+            catch( const ::com::sun::star::plugin::PluginException& )
             {
                 pImpl->leavePluginCallback();
             }
diff --git a/extensions/source/plugin/base/xplugin.cxx b/extensions/source/plugin/base/xplugin.cxx
index d8acf40d4598..c15fb72b077b 100644
--- a/extensions/source/plugin/base/xplugin.cxx
+++ b/extensions/source/plugin/base/xplugin.cxx
@@ -328,7 +328,7 @@ void XPlugin_Impl::handleSpecialArgs()
                 Any aProp = xProp->getPropertyValue( OUString( RTL_CONSTASCII_USTRINGPARAM( "URL" ) ) );
                 aProp >>= aURL;
             }
-            catch( UnknownPropertyException )
+            catch(const UnknownPropertyException &)
             {
             }
         }
@@ -398,7 +398,7 @@ void XPlugin_Impl::handleSpecialArgs()
                 Any aProp = xProp->getPropertyValue( OUString( RTL_CONSTASCII_USTRINGPARAM( "URL" ) ) );
                 aProp >>= aURL;
             }
-            catch( UnknownPropertyException )
+            catch(const UnknownPropertyException &)
             {
             }
         }
@@ -1037,7 +1037,7 @@ void PluginInputStream::load()
                                );
         m_pContent->openStream( static_cast< XOutputStream* >( this ) );
     }
-    catch( com::sun::star::uno::Exception )
+    catch(const com::sun::star::uno::Exception &)
     {
     }
 }
diff --git a/extensions/source/propctrlr/fontdialog.cxx b/extensions/source/propctrlr/fontdialog.cxx
index d57b2ea2251d..707e6d7e0ab2 100644
--- a/extensions/source/propctrlr/fontdialog.cxx
+++ b/extensions/source/propctrlr/fontdialog.cxx
@@ -277,7 +277,7 @@ namespace pcr
             aPropExtractor.invalidateItem(PROPERTY_FONT_RELIEF, CFID_RELIEF, *_pSet);
             aPropExtractor.invalidateItem(PROPERTY_FONT_EMPHASIS_MARK, CFID_EMPHASIS, *_pSet);
         }
-        catch (Exception&)
+        catch (const Exception&)
         {
             OSL_FAIL("ControlCharacterDialog::translatePropertiesToItems: caught an exception!");
         }
diff --git a/extensions/source/propctrlr/formcomponenthandler.cxx b/extensions/source/propctrlr/formcomponenthandler.cxx
index 62e7ded9e911..1712b7c4cd2b 100644
--- a/extensions/source/propctrlr/formcomponenthandler.cxx
+++ b/extensions/source/propctrlr/formcomponenthandler.cxx
@@ -241,7 +241,7 @@ namespace pcr
                         xRet = xStringResourceResolver;
                     }
                 }
-                catch(UnknownPropertyException&)
+                catch(const UnknownPropertyException&)
                 {
                     // nii
                 }
@@ -301,7 +301,7 @@ namespace pcr
                             pResolvedStrings[i] = aIdStr;
                     }
                 }
-                catch( resource::MissingResourceException & )
+                catch( const resource::MissingResourceException & )
                 {}
                 aPropertyValue <<= aResolvedStrings;
             }
@@ -451,7 +451,7 @@ namespace pcr
                                 }
                             }
                         }
-                        catch( resource::MissingResourceException & )
+                        catch( const resource::MissingResourceException & )
                         {}
 
 
@@ -486,7 +486,7 @@ namespace pcr
                                 {
                                     xStringResourceManager->removeIdForLocale( aPureIdStr, aLocale );
                                 }
-                                catch( resource::MissingResourceException & )
+                                catch( const resource::MissingResourceException & )
                                 {}
                             }
                         }
@@ -1206,7 +1206,7 @@ namespace pcr
                             pControl->SetDefaultValue( nDefault );
                     }
                 }
-                catch (Exception&)
+                catch (const Exception&)
                 {
                     // just ignore it
                 }
@@ -1731,7 +1731,7 @@ namespace pcr
                 {
                     xControl = _rxInspectorUI->getPropertyControl( aAffectedProps[i] );
                 }
-                catch( const UnknownPropertyException& e ) { (void)e; }
+                catch( const UnknownPropertyException& ) {}
                 if ( xControl.is() )
                 {
                     OFormattedNumericControl* pControl = dynamic_cast< OFormattedNumericControl* >( xControl.get() );
@@ -1778,7 +1778,7 @@ namespace pcr
                     {
                         xControl = _rxInspectorUI->getPropertyControl( aFormattedPropertyControls[i] );
                     }
-                    catch( const UnknownPropertyException& e ) { (void)e; }
+                    catch( const UnknownPropertyException& ) {}
                     if ( xControl.is() )
                     {
                         OFormattedNumericControl* pControl = dynamic_cast< OFormattedNumericControl* >( xControl.get() );
@@ -2386,7 +2386,7 @@ namespace pcr
                     _rFieldNames.push_back( *pFields );
             }
         }
-        catch (Exception&)
+        catch (const Exception&)
         {
             OSL_FAIL( "FormComponentPropertyHandler::impl_initFieldList_nothrow: caught an exception!" );
         }
@@ -2500,7 +2500,7 @@ namespace pcr
                 break;
             }
         }
-        catch (Exception&)
+        catch (const Exception&)
         {
             OSL_FAIL("FormComponentPropertyHandler::impl_describeCursorSource_nothrow: caught an exception !");
         }
@@ -2672,9 +2672,9 @@ namespace pcr
             if ( bSuccess )
                 _out_rSelectedClause = _bFilter ? xComposer->getFilter() : xComposer->getOrder();
         }
-        catch (SQLContext& e) { aErrorInfo = e; }
-        catch (SQLWarning& e) { aErrorInfo = e; }
-        catch (SQLException& e) { aErrorInfo = e; }
+        catch (const SQLContext& e) { aErrorInfo = e; }
+        catch (const SQLWarning& e) { aErrorInfo = e; }
+        catch (const SQLException& e) { aErrorInfo = e; }
         catch( const Exception& )
         {
             OSL_FAIL( "FormComponentPropertyHandler::impl_dialogFilterOrSort_nothrow: caught an exception!" );
diff --git a/extensions/source/propctrlr/propcontroller.cxx b/extensions/source/propctrlr/propcontroller.cxx
index c67540bf73ea..63cb0e01053c 100644
--- a/extensions/source/propctrlr/propcontroller.cxx
+++ b/extensions/source/propctrlr/propcontroller.cxx
@@ -986,7 +986,7 @@ namespace pcr
             UpdateUI();
         }
 
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("OPropertyBrowserController::impl_rebindToInspectee_nothrow: caught an exception !");
         }
@@ -1117,7 +1117,7 @@ namespace pcr
             // be notified when one of our inspectees dies
             impl_toggleInspecteeListening_nothrow( true );
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("OPropertyBrowserController::doInspection : caught an exception !");
         }
@@ -1367,7 +1367,7 @@ namespace pcr
                 break;
             }
         }
-        catch (Exception&)
+        catch (const Exception&)
         {
             DBG_UNHANDLED_EXCEPTION();
         }
@@ -1430,14 +1430,14 @@ namespace pcr
             // and display it again. This ensures proper formatting
             getPropertyBox().SetPropertyValue( rName, aNormalizedValue, false );
         }
-        catch(PropertyVetoException& eVetoException)
+        catch(const PropertyVetoException& eVetoException)
         {
             InfoBox(m_pView, eVetoException.Message).Execute();
             PropertyHandlerRef handler = impl_getHandlerForProperty_throw( rName );
             Any aNormalizedValue = handler->getPropertyValue( rName );
             getPropertyBox().SetPropertyValue( rName, aNormalizedValue, false );
         }
-        catch(Exception&)
+        catch(const Exception&)
         {
             OSL_FAIL("OPropertyBrowserController::Commit : caught an exception !");
         }
diff --git a/extensions/source/propctrlr/stringrepresentation.cxx b/extensions/source/propctrlr/stringrepresentation.cxx
index cc9303875c9b..4cee79747872 100644
--- a/extensions/source/propctrlr/stringrepresentation.cxx
+++ b/extensions/source/propctrlr/stringrepresentation.cxx
@@ -288,8 +288,8 @@ void SAL_CALL StringRepresentation::initialize(const uno::Sequence< uno::Any > &
             if ( !sReturn.getLength() )
                 m_xTypeConverter->convertToSimpleType( _rValue, uno::TypeClass_STRING ) >>= sReturn;
         }
-        catch( script::CannotConvertException& ) { }
-        catch( lang::IllegalArgumentException& ) { }
+        catch( const script::CannotConvertException& ) { }
+        catch( const lang::IllegalArgumentException& ) { }
     }
     return sReturn;
 }
@@ -486,8 +486,8 @@ uno::Any StringRepresentation::convertStringToSimple( const ::rtl::OUString& _rV
             if ( !aReturn.hasValue() )
                 aReturn = m_xTypeConverter->convertToSimpleType( makeAny( _rValue ), _ePropertyType );
         }
-        catch( script::CannotConvertException& ) { }
-        catch( lang::IllegalArgumentException& ) { }
+        catch( const script::CannotConvertException& ) { }
+        catch( const lang::IllegalArgumentException& ) { }
     }
     return aReturn;
 }
diff --git a/extensions/source/update/check/updatecheck.cxx b/extensions/source/update/check/updatecheck.cxx
index c88ea8206190..66acb883033a 100644
--- a/extensions/source/update/check/updatecheck.cxx
+++ b/extensions/source/update/check/updatecheck.cxx
@@ -970,7 +970,7 @@ UpdateCheck::install()
             ShutdownThread *pShutdownThread = new ShutdownThread( m_xContext );
             (void) pShutdownThread;
         }
-    } catch(uno::Exception&) {
+    } catch(const uno::Exception&) {
         m_aUpdateHandler->setErrorMessage( m_aUpdateHandler->getDefaultInstErrMsg() );
     }
 }
@@ -1513,7 +1513,7 @@ UpdateCheck::showReleaseNote(const rtl::OUString& rURL) const
 
         if( xShellExecute.is() )
             xShellExecute->execute(rURL, rtl::OUString(), c3s::SystemShellExecuteFlags::DEFAULTS);
-    } catch(c3s::SystemShellExecuteException&) {
+    } catch(const c3s::SystemShellExecuteException&) {
     }
 }
 
diff --git a/extensions/source/update/check/updateprotocol.cxx b/extensions/source/update/check/updateprotocol.cxx
index bbe5494990fe..a20208d4a0a5 100644
--- a/extensions/source/update/check/updateprotocol.cxx
+++ b/extensions/source/update/check/updateprotocol.cxx
@@ -172,7 +172,7 @@ checkForUpdates(
                 try {
                     xNodeList = xXPath->selectNodeList(xNode, aXPathExpression
                         + UNISTRING("/inst:update/attribute::src"));
-                } catch (css::xml::xpath::XPathException &) {
+                } catch (const css::xml::xpath::XPathException &) {
                     // ignore
                 }
 
@@ -200,7 +200,7 @@ checkForUpdates(
                 try {
                     xNode2 = xXPath->selectSingleNode(xNode, aXPathExpression
                         + UNISTRING("/inst:version/text()"));
-                } catch (css::xml::xpath::XPathException &) {
+                } catch (const css::xml::xpath::XPathException &) {
                     // ignore
                 }
 
@@ -210,7 +210,7 @@ checkForUpdates(
                 try {
                     xNode2 = xXPath->selectSingleNode(xNode, aXPathExpression
                         + UNISTRING("/inst:buildid/text()"));
-                } catch (css::xml::xpath::XPathException &) {
+                } catch (const css::xml::xpath::XPathException &) {
                     // ignore
                 }
 
@@ -223,7 +223,7 @@ checkForUpdates(
                 try {
                     xNodeList = xXPath->selectNodeList(xNode, aXPathExpression
                         + UNISTRING("/inst:relnote"));
-                } catch (css::xml::xpath::XPathException &) {
+                } catch (const css::xml::xpath::XPathException &) {
                     // ignore
                 }
                 imax = xNodeList->getLength();
diff --git a/extensions/source/update/feed/updatefeed.cxx b/extensions/source/update/feed/updatefeed.cxx
index 42a73015d116..a7d70fdd8c83 100644
--- a/extensions/source/update/feed/updatefeed.cxx
+++ b/extensions/source/update/feed/updatefeed.cxx
@@ -573,7 +573,7 @@ UpdateInformationProvider::getChildNode(const uno::Reference< xml::dom::XNode >&
     OSL_ASSERT(m_xXPathAPI.is());
     try {
         return m_xXPathAPI->selectSingleNode(rxNode, UNISTRING( "./atom:" ) + rName);
-    } catch (xml::xpath::XPathException &) {
+    } catch (const xml::xpath::XPathException &) {
         // ignore
         return 0;
     }
@@ -617,7 +617,7 @@ UpdateInformationProvider::getUpdateInformationEnumeration(
                     try {
                         xNodeList = m_xXPathAPI->selectNodeList(xDocument.get(),
                             aXPathExpression);
-                    } catch (xml::xpath::XPathException &) {
+                    } catch (const xml::xpath::XPathException &) {
                         // ignore
                     }
 
diff --git a/extensions/source/update/ui/updatecheckui.cxx b/extensions/source/update/ui/updatecheckui.cxx
index e2914346917d..09dacc5da8f7 100644
--- a/extensions/source/update/ui/updatecheckui.cxx
+++ b/extensions/source/update/ui/updatecheckui.cxx
@@ -349,7 +349,7 @@ Image UpdateCheckUI::GetBubbleImage( ::rtl::OUString &rURL )
                 }
             }
         }
-        catch( uno::Exception& )
+        catch( const uno::Exception& )
         {
         }
     }