Java cleanup, remove unnecessary casts

Change-Id: Id12089bc7df16631737e6acaee0973fb91dd953f
Reviewed-on: https://gerrit.libreoffice.org/3431
Reviewed-by: Fridrich Strba <fridrich@documentfoundation.org>
Tested-by: Fridrich Strba <fridrich@documentfoundation.org>

10 files changed, 152 insertions, 159 deletions

diff --git a/odk/examples/DevelopersGuide/Charts/CalcHelper.java b/odk/examples/DevelopersGuide/Charts/CalcHelper.java
index ec0bea5f6306..ade201ccd297 100644
--- a/odk/examples/DevelopersGuide/Charts/CalcHelper.java
+++ b/odk/examples/DevelopersGuide/Charts/CalcHelper.java
@@ -74,13 +74,13 @@ public class CalcHelper
 
     public XSpreadsheet getChartSheet() throws RuntimeException
     {
-        XNameAccess aSheetsNA = (XNameAccess) UnoRuntime.queryInterface(
+        XNameAccess aSheetsNA = UnoRuntime.queryInterface(
             XNameAccess.class, maSpreadSheetDoc.getSheets() );
 
         XSpreadsheet aSheet = null;
         try
         {
-            aSheet = (XSpreadsheet) UnoRuntime.queryInterface(
+            aSheet = UnoRuntime.queryInterface(
                 XSpreadsheet.class, aSheetsNA.getByName( msChartSheetName ) );
         }
         catch( NoSuchElementException ex )
@@ -97,7 +97,7 @@ public class CalcHelper
 
     public XSpreadsheet getDataSheet() throws RuntimeException
     {
-        XNameAccess aSheetsNA = (XNameAccess) UnoRuntime.queryInterface(
+        XNameAccess aSheetsNA = UnoRuntime.queryInterface(
             XNameAccess.class, maSpreadSheetDoc.getSheets() );
 
         XSpreadsheet aSheet = null;
@@ -105,7 +105,7 @@ public class CalcHelper
         {
             try
             {
-                aSheet = (XSpreadsheet) UnoRuntime.queryInterface(
+                aSheet = UnoRuntime.queryInterface(
                     XSpreadsheet.class, aSheetsNA.getByName( msDataSheetName ) );
             }
             catch( NoSuchElementException ex )
@@ -141,7 +141,7 @@ public class CalcHelper
         // get the sheet to insert the chart
         try
         {
-            aSheet = (XTableChartsSupplier) UnoRuntime.queryInterface(
+            aSheet = UnoRuntime.queryInterface(
                 XTableChartsSupplier.class, getChartSheet() );
         }
         catch( Exception ex )
@@ -151,7 +151,7 @@ public class CalcHelper
         }
 
         XTableCharts aChartCollection = aSheet.getCharts();
-        XNameAccess  aChartCollectionNA = (XNameAccess) UnoRuntime.queryInterface(
+        XNameAccess  aChartCollectionNA = UnoRuntime.queryInterface(
             XNameAccess.class, aChartCollection );
 
         if( aChartCollectionNA != null &&
@@ -168,23 +168,23 @@ public class CalcHelper
 
             try
             {
-                XTableChart aTableChart = (XTableChart) UnoRuntime.queryInterface(
+                XTableChart aTableChart = UnoRuntime.queryInterface(
                     XTableChart.class, aChartCollectionNA.getByName( sChartName ));
 
                 // the table chart is an embedded object which contains the chart document
-                aResult = (XChartDocument) UnoRuntime.queryInterface(
+                aResult = UnoRuntime.queryInterface(
                     XChartDocument.class,
-                    ((XEmbeddedObjectSupplier) UnoRuntime.queryInterface(
+                    UnoRuntime.queryInterface(
                         XEmbeddedObjectSupplier.class,
-                        aTableChart )).getEmbeddedObject());
+                        aTableChart ).getEmbeddedObject());
 
                 // create a diagram via the factory and set this as new diagram
                 aResult.setDiagram(
-                    (XDiagram) UnoRuntime.queryInterface(
+                    UnoRuntime.queryInterface(
                         XDiagram.class,
-                        ((XMultiServiceFactory) UnoRuntime.queryInterface(
+                        UnoRuntime.queryInterface(
                             XMultiServiceFactory.class,
-                            aResult )).createInstance( sChartServiceName )));
+                            aResult ).createInstance( sChartServiceName )));
             }
             catch( NoSuchElementException ex )
             {
@@ -210,7 +210,7 @@ public class CalcHelper
         try
         {
             XSpreadsheet aSheet = getDataSheet();
-            XCellRange aSheetRange = (XCellRange) UnoRuntime.queryInterface( XCellRange.class, aSheet );
+            XCellRange aSheetRange = UnoRuntime.queryInterface( XCellRange.class, aSheet );
 
             aRange = aSheetRange.getCellRangeByPosition(
                 0, 0,
@@ -239,7 +239,7 @@ public class CalcHelper
                     if( 0 == nCol )
                     {
                         // x values: ascending numbers
-                        fValue = (double)nRow + aGenerator.nextDouble();
+                        fValue = nRow + aGenerator.nextDouble();
                     }
                     else
                     {
@@ -273,7 +273,7 @@ public class CalcHelper
         try
         {
             XSpreadsheet aSheet = getDataSheet();
-            XCellRange aSheetRange = (XCellRange) UnoRuntime.queryInterface( XCellRange.class, aSheet );
+            XCellRange aSheetRange = UnoRuntime.queryInterface( XCellRange.class, aSheet );
 
             aRange = aSheetRange.getCellRangeByPosition(
                 0, 0,
@@ -281,14 +281,14 @@ public class CalcHelper
 
             int nCol, nRow;
             double fValue;
-            double fFactor = 2.0 * java.lang.Math.PI / (double)(nRowCount - 1);
+            double fFactor = 2.0 * java.lang.Math.PI / (nRowCount - 1);
             String aFormula;
 
             // set variable factor for cos formula
             int nFactorCol = nColumnCount + 2;
             (aSheet.getCellByPosition( nFactorCol - 1, 0 )).setValue( 0.2 );
 
-            XText xCellText = (XText) UnoRuntime.queryInterface( XText.class, aSheet.getCellByPosition( nFactorCol - 1, 1 ) );
+            XText xCellText = UnoRuntime.queryInterface( XText.class, aSheet.getCellByPosition( nFactorCol - 1, 1 ) );
             xCellText.setString( "Change the factor above and\nwatch the changes in the chart" );
 
             for( nCol = 0; nCol < nColumnCount; nCol++ )
@@ -298,7 +298,7 @@ public class CalcHelper
                     if( 0 == nCol )
                     {
                         // x values: ascending numbers
-                        fValue = (double)nRow * fFactor;
+                        fValue = nRow * fFactor;
                         (aSheet.getCellByPosition( nCol, nRow )).setValue( fValue );
                     }
                     else
@@ -329,11 +329,11 @@ public class CalcHelper
      */
     public void raiseChartSheet()
     {
-        ((XSpreadsheetView) UnoRuntime.queryInterface(
+        UnoRuntime.queryInterface(
             XSpreadsheetView.class,
-            ((XModel) UnoRuntime.queryInterface(
+            UnoRuntime.queryInterface(
                 XModel.class,
-                maSpreadSheetDoc )).getCurrentController()) ).setActiveSheet( getChartSheet() );
+                maSpreadSheetDoc ).getCurrentController()).setActiveSheet( getChartSheet() );
     }
 
 
@@ -354,9 +354,9 @@ public class CalcHelper
         if( maSpreadSheetDoc != null )
         {
             XSpreadsheets  aSheets    = maSpreadSheetDoc.getSheets();
-            XNameContainer aSheetsNC  = (XNameContainer)  UnoRuntime.queryInterface(
+            XNameContainer aSheetsNC  = UnoRuntime.queryInterface(
                 XNameContainer.class, aSheets );
-            XIndexAccess   aSheetsIA  = (XIndexAccess)    UnoRuntime.queryInterface(
+            XIndexAccess   aSheetsIA  = UnoRuntime.queryInterface(
                 XIndexAccess.class, aSheets );
 
             if( aSheets   != null &&
@@ -369,11 +369,11 @@ public class CalcHelper
                     for( int i = aSheetsIA.getCount() - 1; i > 0; i-- )
                     {
                         aSheetsNC.removeByName(
-                            ( (XNamed) UnoRuntime.queryInterface(
-                                XNamed.class, aSheetsIA.getByIndex( i ) )).getName() );
+                            UnoRuntime.queryInterface(
+                                XNamed.class, aSheetsIA.getByIndex( i ) ).getName() );
                     }
 
-                    XNamed aFirstSheet = (XNamed) UnoRuntime.queryInterface(
+                    XNamed aFirstSheet = UnoRuntime.queryInterface(
                         XNamed.class,
                         aSheetsIA.getByIndex( 0 ));
 
diff --git a/odk/examples/DevelopersGuide/Charts/ChartHelper.java b/odk/examples/DevelopersGuide/Charts/ChartHelper.java
index 8f01b52aa426..977983ecbce7 100644
--- a/odk/examples/DevelopersGuide/Charts/ChartHelper.java
+++ b/odk/examples/DevelopersGuide/Charts/ChartHelper.java
@@ -74,29 +74,27 @@ public class ChartHelper
     {
         XChartDocument aResult = null;
 
-        XMultiServiceFactory aFact = (XMultiServiceFactory)
-            UnoRuntime.queryInterface(XMultiServiceFactory.class,
-                                      maContainerDocument );
+        XMultiServiceFactory aFact = UnoRuntime.queryInterface(XMultiServiceFactory.class,
+                                  maContainerDocument );
 
         if( aFact != null )
         {
             try
             {
-                XTextContent xTextContent = (XTextContent)UnoRuntime.queryInterface(
+                XTextContent xTextContent = UnoRuntime.queryInterface(
                 XTextContent.class,
                 aFact.createInstance("com.sun.star.text.TextEmbeddedObject"));
 
                 if ( xTextContent != null )
                 {
-                    XPropertySet xPropSet = (XPropertySet)UnoRuntime.queryInterface(
+                    XPropertySet xPropSet = UnoRuntime.queryInterface(
                         XPropertySet.class, xTextContent);
 
                     Any aAny = new Any(String.class, msChartClassID);
                     xPropSet.setPropertyValue("CLSID", aAny );
 
-                    XTextDocument xTextDoc = (XTextDocument)
-                        UnoRuntime.queryInterface(XTextDocument.class,
-                                                  maContainerDocument);
+                    XTextDocument xTextDoc = UnoRuntime.queryInterface(XTextDocument.class,
+                                              maContainerDocument);
                     XText xText = xTextDoc.getText();
                     XTextCursor xCursor = xText.createTextCursor();
 
@@ -104,7 +102,7 @@ public class ChartHelper
                     xText.insertTextContent( xCursor, xTextContent, true );
 
                     // set size and position
-                    XShape xShape = (XShape)UnoRuntime.queryInterface(
+                    XShape xShape = UnoRuntime.queryInterface(
                         XShape.class, xTextContent);
                     xShape.setSize( aExtent );
 
@@ -120,18 +118,18 @@ public class ChartHelper
                     xPropSet.setPropertyValue("HoriOrientPosition", aAny );
 
                     // retrieve the chart document as model of the OLE shape
-                    aResult = (XChartDocument) UnoRuntime.queryInterface(
+                    aResult = UnoRuntime.queryInterface(
                             XChartDocument.class,
                             xPropSet.getPropertyValue( "Model" ));
 
                     // create a diagram via the factory and set this as
                     // new diagram
                     aResult.setDiagram(
-                        (XDiagram) UnoRuntime.queryInterface(
+                        UnoRuntime.queryInterface(
                             XDiagram.class,
-                            ((XMultiServiceFactory) UnoRuntime.queryInterface(
+                            UnoRuntime.queryInterface(
                                 XMultiServiceFactory.class,
-                                aResult )).createInstance(sChartServiceName )));
+                                aResult ).createInstance(sChartServiceName )));
                 }
             } catch( Exception ex)
             {
@@ -153,16 +151,15 @@ public class ChartHelper
         XShapes aPage = null;
 
         // try interface for multiple pages in a document
-        XDrawPagesSupplier aSupplier = (XDrawPagesSupplier)
-            UnoRuntime.queryInterface(XDrawPagesSupplier.class,
-                                      maContainerDocument );
+        XDrawPagesSupplier aSupplier = UnoRuntime.queryInterface(XDrawPagesSupplier.class,
+                                  maContainerDocument );
 
         if( aSupplier != null )
         {
             try
             {
                 // get first page
-                aPage = (XShapes) UnoRuntime.queryInterface(
+                aPage = UnoRuntime.queryInterface(
                     XShapes.class, aSupplier.getDrawPages().getByIndex( 0 ) );
             }
             catch( Exception ex )
@@ -174,29 +171,27 @@ public class ChartHelper
         else
         {
             // try interface for single draw page (e.g. spreadsheet)
-            XDrawPageSupplier aOnePageSupplier = (XDrawPageSupplier)
-                UnoRuntime.queryInterface(XDrawPageSupplier.class,
-                                          maContainerDocument );
+            XDrawPageSupplier aOnePageSupplier = UnoRuntime.queryInterface(XDrawPageSupplier.class,
+                                      maContainerDocument );
 
             if( aOnePageSupplier != null )
             {
-                aPage = (XShapes) UnoRuntime.queryInterface(
+                aPage = UnoRuntime.queryInterface(
                     XShapes.class, aOnePageSupplier.getDrawPage());
             }
         }
 
         if( aPage != null )
         {
-            XMultiServiceFactory aFact = (XMultiServiceFactory)
-                UnoRuntime.queryInterface(XMultiServiceFactory.class,
-                                          maContainerDocument );
+            XMultiServiceFactory aFact = UnoRuntime.queryInterface(XMultiServiceFactory.class,
+                                      maContainerDocument );
 
             if( aFact != null )
             {
                 try
                 {
                     // create an OLE shape
-                    XShape aShape = (XShape) UnoRuntime.queryInterface(
+                    XShape aShape = UnoRuntime.queryInterface(
                         XShape.class,
                         aFact.createInstance( "com.sun.star.drawing.OLE2Shape" ));
 
@@ -206,26 +201,25 @@ public class ChartHelper
                     aShape.setSize( aExtent );
 
                     // make the OLE shape a chart
-                    XPropertySet aShapeProp = (XPropertySet)
-                        UnoRuntime.queryInterface(XPropertySet.class, aShape );
+                    XPropertySet aShapeProp = UnoRuntime.queryInterface(XPropertySet.class, aShape );
                     if( aShapeProp != null )
                     {
                         // set the class id for charts
                         aShapeProp.setPropertyValue( "CLSID", msChartClassID );
 
                         // retrieve the chart document as model of the OLE shape
-                        aResult = (XChartDocument) UnoRuntime.queryInterface(
+                        aResult = UnoRuntime.queryInterface(
                             XChartDocument.class,
                             aShapeProp.getPropertyValue( "Model" ));
 
                         // create a diagram via the factory and set this as
                         // new diagram
                         aResult.setDiagram(
-                            (XDiagram) UnoRuntime.queryInterface(
+                            UnoRuntime.queryInterface(
                                 XDiagram.class,
-                                ((XMultiServiceFactory) UnoRuntime.queryInterface(
+                                UnoRuntime.queryInterface(
                                     XMultiServiceFactory.class,
-                                    aResult )).createInstance(sChartServiceName )));
+                                    aResult ).createInstance(sChartServiceName )));
                     }
                 }
                 catch( Exception ex )
diff --git a/odk/examples/DevelopersGuide/Charts/ChartInCalc.java b/odk/examples/DevelopersGuide/Charts/ChartInCalc.java
index f5e4b116ac7d..62042b95b5b7 100644
--- a/odk/examples/DevelopersGuide/Charts/ChartInCalc.java
+++ b/odk/examples/DevelopersGuide/Charts/ChartInCalc.java
@@ -80,8 +80,8 @@ public class ChartInCalc
 
         // insert a cell range with 4 columns and 24 rows filled with random numbers
         XCellRange aRange = aCalcHelper.insertRandomRange( 4, 24 );
-        CellRangeAddress aRangeAddress = ((XCellRangeAddressable) UnoRuntime.queryInterface(
-            XCellRangeAddressable.class, aRange)).getRangeAddress();
+        CellRangeAddress aRangeAddress = UnoRuntime.queryInterface(
+            XCellRangeAddressable.class, aRange).getRangeAddress();
 
         // change view to sheet containing the chart
         aCalcHelper.raiseChartSheet();
@@ -150,7 +150,7 @@ public class ChartInCalc
     public void lockControllers()
         throws RuntimeException
     {
-        ((XModel) UnoRuntime.queryInterface( XModel.class, maChartDocument )).lockControllers();
+        UnoRuntime.queryInterface( XModel.class, maChartDocument ).lockControllers();
     }
 
     // ____________________
@@ -158,7 +158,7 @@ public class ChartInCalc
     public void unlockControllers()
         throws RuntimeException
     {
-        ((XModel) UnoRuntime.queryInterface( XModel.class, maChartDocument )).unlockControllers();
+        UnoRuntime.queryInterface( XModel.class, maChartDocument ).unlockControllers();
     }
 
     // ____________________
@@ -167,7 +167,7 @@ public class ChartInCalc
         throws RuntimeException, UnknownPropertyException, PropertyVetoException,
                com.sun.star.lang.IllegalArgumentException, WrappedTargetException
     {
-        XPropertySet aDiaProp = (XPropertySet) UnoRuntime.queryInterface( XPropertySet.class, maDiagram );
+        XPropertySet aDiaProp = UnoRuntime.queryInterface( XPropertySet.class, maDiagram );
 
         if( aDiaProp != null )
         {
@@ -237,7 +237,7 @@ public class ChartInCalc
             // determine the maximum value of the first series
             int nMaxIndex = 0;
 
-            XChartDataArray aDataArray = (XChartDataArray) UnoRuntime.queryInterface(
+            XChartDataArray aDataArray = UnoRuntime.queryInterface(
                 XChartDataArray.class, maChartDocument.getData());
             double aData[][] = aDataArray.getData();
 
@@ -293,8 +293,8 @@ public class ChartInCalc
         throws RuntimeException, UnknownPropertyException, PropertyVetoException,
                com.sun.star.lang.IllegalArgumentException, WrappedTargetException
     {
-        XPropertySet aWall = ((X3DDisplay) UnoRuntime.queryInterface(
-                                  X3DDisplay.class, maDiagram )).getWall();
+        XPropertySet aWall = UnoRuntime.queryInterface(
+                                  X3DDisplay.class, maDiagram ).getWall();
 
         // change background color of area
         aWall.setPropertyValue( "FillStyle", FillStyle.SOLID );
@@ -308,12 +308,12 @@ public class ChartInCalc
                com.sun.star.lang.IllegalArgumentException, WrappedTargetException
     {
         // change main title
-        XPropertySet aDocProp = (XPropertySet) UnoRuntime.queryInterface(
+        XPropertySet aDocProp = UnoRuntime.queryInterface(
             XPropertySet.class, maChartDocument );
         aDocProp.setPropertyValue( "HasMainTitle", new Boolean( true ));
 
         XShape aTitle = maChartDocument.getTitle();
-        XPropertySet aTitleProp = (XPropertySet) UnoRuntime.queryInterface( XPropertySet.class, aTitle );
+        XPropertySet aTitleProp = UnoRuntime.queryInterface( XPropertySet.class, aTitle );
 
         // set new text
         if( aTitleProp != null )
@@ -323,9 +323,9 @@ public class ChartInCalc
         }
 
         // align title with y axis
-        XShape aAxis = (XShape) UnoRuntime.queryInterface(
-            XShape.class, ((XAxisYSupplier) UnoRuntime.queryInterface(
-                XAxisYSupplier.class, maDiagram )).getYAxis() );
+        XShape aAxis = UnoRuntime.queryInterface(
+            XShape.class, UnoRuntime.queryInterface(
+                XAxisYSupplier.class, maDiagram ).getYAxis() );
 
         if( aAxis != null &&
             aTitle != null )
@@ -344,8 +344,8 @@ public class ChartInCalc
                MalformedNumberFormatException
     {
         // x axis
-        XPropertySet aAxisProp = ((XAxisXSupplier) UnoRuntime.queryInterface(
-                                      XAxisXSupplier.class, maDiagram )).getXAxis();
+        XPropertySet aAxisProp = UnoRuntime.queryInterface(
+                                      XAxisXSupplier.class, maDiagram ).getXAxis();
         if( aAxisProp != null )
         {
             aAxisProp.setPropertyValue( "Max",      new Integer( 24 ));
@@ -353,12 +353,12 @@ public class ChartInCalc
         }
 
         // change number format for y axis
-        aAxisProp = ((XAxisYSupplier) UnoRuntime.queryInterface(
-                         XAxisYSupplier.class, maDiagram )).getYAxis();
+        aAxisProp = UnoRuntime.queryInterface(
+                         XAxisYSupplier.class, maDiagram ).getYAxis();
 
         // add a new custom number format and get the new key
         int nNewNumberFormat = 0;
-        XNumberFormatsSupplier aNumFmtSupp = (XNumberFormatsSupplier) UnoRuntime.queryInterface(
+        XNumberFormatsSupplier aNumFmtSupp = UnoRuntime.queryInterface(
             XNumberFormatsSupplier.class, maChartDocument );
 
         if( aNumFmtSupp != null )
@@ -383,10 +383,10 @@ public class ChartInCalc
                com.sun.star.lang.IllegalArgumentException, WrappedTargetException
     {
         // y major grid
-        XPropertySet aGridProp = (XPropertySet) UnoRuntime.queryInterface(
+        XPropertySet aGridProp = UnoRuntime.queryInterface(
             XPropertySet.class,
-            ( (XAxisYSupplier) UnoRuntime.queryInterface(
-                XAxisYSupplier.class, maDiagram )).getYMainGrid());
+            UnoRuntime.queryInterface(
+                XAxisYSupplier.class, maDiagram ).getYMainGrid());
 
         if( aGridProp != null )
         {
diff --git a/odk/examples/DevelopersGuide/Charts/ChartInDraw.java b/odk/examples/DevelopersGuide/Charts/ChartInDraw.java
index 362c1b731c32..f7fbb2cff263 100644
--- a/odk/examples/DevelopersGuide/Charts/ChartInDraw.java
+++ b/odk/examples/DevelopersGuide/Charts/ChartInDraw.java
@@ -121,7 +121,7 @@ public class ChartInDraw
     public void lockControllers()
         throws RuntimeException
     {
-        ((XModel) UnoRuntime.queryInterface( XModel.class, maChartDocument )).lockControllers();
+        UnoRuntime.queryInterface( XModel.class, maChartDocument ).lockControllers();
     }
 
     // ____________________
@@ -129,7 +129,7 @@ public class ChartInDraw
     public void unlockControllers()
         throws RuntimeException
     {
-        ((XModel) UnoRuntime.queryInterface( XModel.class, maChartDocument )).unlockControllers();
+        UnoRuntime.queryInterface( XModel.class, maChartDocument ).unlockControllers();
     }
 
     // ____________________
@@ -154,8 +154,8 @@ public class ChartInDraw
         throws RuntimeException, UnknownPropertyException, PropertyVetoException,
                com.sun.star.lang.IllegalArgumentException, WrappedTargetException
     {
-        XPropertySet aWall = ((X3DDisplay) UnoRuntime.queryInterface(
-                                  X3DDisplay.class, maDiagram )).getWall();
+        XPropertySet aWall = UnoRuntime.queryInterface(
+                                  X3DDisplay.class, maDiagram ).getWall();
 
         // change background color of area
         aWall.setPropertyValue( "FillColor", new Integer( 0xcccccc ));
@@ -169,12 +169,12 @@ public class ChartInDraw
                com.sun.star.lang.IllegalArgumentException, WrappedTargetException
     {
         // change main title
-        XPropertySet aDocProp = (XPropertySet) UnoRuntime.queryInterface(
+        XPropertySet aDocProp = UnoRuntime.queryInterface(
             XPropertySet.class, maChartDocument );
         aDocProp.setPropertyValue( "HasMainTitle", new Boolean( true ));
 
         XShape aTitle = maChartDocument.getTitle();
-        XPropertySet aTitleProp = (XPropertySet) UnoRuntime.queryInterface( XPropertySet.class, aTitle );
+        XPropertySet aTitleProp = UnoRuntime.queryInterface( XPropertySet.class, aTitle );
 
         // set new text
         if( aTitleProp != null )
@@ -190,7 +190,7 @@ public class ChartInDraw
                com.sun.star.lang.IllegalArgumentException, WrappedTargetException
     {
         XShape aLegend = maChartDocument.getLegend();
-        XPropertySet aLegendProp = (XPropertySet) UnoRuntime.queryInterface( XPropertySet.class, aLegend );
+        XPropertySet aLegendProp = UnoRuntime.queryInterface( XPropertySet.class, aLegend );
 
         aLegendProp.setPropertyValue( "Alignment", ChartLegendPosition.LEFT );
         aLegendProp.setPropertyValue( "FillStyle", FillStyle.SOLID );
@@ -204,7 +204,7 @@ public class ChartInDraw
         com.sun.star.lang.IllegalArgumentException, WrappedTargetException,
         com.sun.star.lang.IndexOutOfBoundsException
     {
-        XPropertySet aDiaProp = (XPropertySet) UnoRuntime.queryInterface( XPropertySet.class, maDiagram );
+        XPropertySet aDiaProp = UnoRuntime.queryInterface( XPropertySet.class, maDiagram );
         Boolean aTrue = new Boolean( true );
 
         aDiaProp.setPropertyValue( "Dim3D", aTrue );
@@ -213,8 +213,8 @@ public class ChartInDraw
         aDiaProp.setPropertyValue( "SolidType", new Integer( ChartSolidType.CYLINDER ));
 
         // change floor color to Magenta6
-        XPropertySet aFloor = ((X3DDisplay) UnoRuntime.queryInterface(
-                                   X3DDisplay.class, maDiagram )).getFloor();
+        XPropertySet aFloor = UnoRuntime.queryInterface(
+                                   X3DDisplay.class, maDiagram ).getFloor();
         aFloor.setPropertyValue( "FillColor", new Integer( 0x6b2394 ));
 
         // apply changes to get a 3d scene
diff --git a/odk/examples/DevelopersGuide/Charts/ChartInWriter.java b/odk/examples/DevelopersGuide/Charts/ChartInWriter.java
index 30ff75a7e060..6506cb92f32e 100644
--- a/odk/examples/DevelopersGuide/Charts/ChartInWriter.java
+++ b/odk/examples/DevelopersGuide/Charts/ChartInWriter.java
@@ -73,7 +73,7 @@ public class ChartInWriter
         Helper aHelper = new Helper( args );
 
         ChartHelper aChartHelper = new ChartHelper(
-            (XModel) UnoRuntime.queryInterface( XModel.class,
+            UnoRuntime.queryInterface( XModel.class,
                                                 aHelper.createTextDocument()));
 
         // the unit for measures is 1/100th of a millimeter
@@ -126,7 +126,7 @@ public class ChartInWriter
     public void lockControllers()
         throws RuntimeException
     {
-        ((XModel) UnoRuntime.queryInterface( XModel.class, maChartDocument )).lockControllers();
+        UnoRuntime.queryInterface( XModel.class, maChartDocument ).lockControllers();
     }
 
     // ____________________
@@ -134,7 +134,7 @@ public class ChartInWriter
     public void unlockControllers()
         throws RuntimeException
     {
-        ((XModel) UnoRuntime.queryInterface( XModel.class, maChartDocument )).unlockControllers();
+        UnoRuntime.queryInterface( XModel.class, maChartDocument ).unlockControllers();
     }
 
     // ____________________
@@ -143,8 +143,8 @@ public class ChartInWriter
         throws RuntimeException, UnknownPropertyException, PropertyVetoException,
                com.sun.star.lang.IllegalArgumentException, WrappedTargetException
     {
-        XPropertySet aWall = ((X3DDisplay) UnoRuntime.queryInterface(
-                                  X3DDisplay.class, maDiagram )).getWall();
+        XPropertySet aWall = UnoRuntime.queryInterface(
+                                  X3DDisplay.class, maDiagram ).getWall();
 
         // change background color of area
         aWall.setPropertyValue( "FillColor", new Integer( 0xeecc99 ));
diff --git a/odk/examples/DevelopersGuide/Charts/Helper.java b/odk/examples/DevelopersGuide/Charts/Helper.java
index 6c7e2c316030..92ba8c476474 100644
--- a/odk/examples/DevelopersGuide/Charts/Helper.java
+++ b/odk/examples/DevelopersGuide/Charts/Helper.java
@@ -75,7 +75,7 @@ public class Helper
 
     public XSpreadsheetDocument createSpreadsheetDocument()
     {
-        return (XSpreadsheetDocument) UnoRuntime.queryInterface(
+        return UnoRuntime.queryInterface(
             XSpreadsheetDocument.class, createDocument( "scalc" ));
     }
 
@@ -107,12 +107,11 @@ public class Helper
         XModel aResult = null;
         try
         {
-            XComponentLoader aLoader = (XComponentLoader)
-                UnoRuntime.queryInterface(XComponentLoader.class,
-                maMCFactory.createInstanceWithContext("com.sun.star.frame.Desktop",
-                                                      maContext) );
+            XComponentLoader aLoader = UnoRuntime.queryInterface(XComponentLoader.class,
+            maMCFactory.createInstanceWithContext("com.sun.star.frame.Desktop",
+                                                  maContext) );
 
-            aResult = (XModel) UnoRuntime.queryInterface(
+            aResult = UnoRuntime.queryInterface(
                 XModel.class,
                 aLoader.loadComponentFromURL( "private:factory/" + sDocType,
                                               "_blank",
diff --git a/odk/examples/DevelopersGuide/Charts/JavaSampleChartAddIn.java b/odk/examples/DevelopersGuide/Charts/JavaSampleChartAddIn.java
index 3ddb9d814fd3..4a8b1ec46b12 100644
--- a/odk/examples/DevelopersGuide/Charts/JavaSampleChartAddIn.java
+++ b/odk/examples/DevelopersGuide/Charts/JavaSampleChartAddIn.java
@@ -80,10 +80,10 @@ public class JavaSampleChartAddIn extends WeakBase implements
     {
         if( aArguments.length > 0 )
         {
-            maChartDocument = (XChartDocument) UnoRuntime.queryInterface(
+            maChartDocument = UnoRuntime.queryInterface(
                 XChartDocument.class, aArguments[ 0 ]);
 
-            XPropertySet aDocProp = (XPropertySet) UnoRuntime.queryInterface(
+            XPropertySet aDocProp = UnoRuntime.queryInterface(
                 XPropertySet.class, maChartDocument );
             if( aDocProp != null )
             {
@@ -92,14 +92,14 @@ public class JavaSampleChartAddIn extends WeakBase implements
             }
 
             // get the draw page
-            XDrawPageSupplier aPageSupp = (XDrawPageSupplier) UnoRuntime.queryInterface(
+            XDrawPageSupplier aPageSupp = UnoRuntime.queryInterface(
                 XDrawPageSupplier.class, maChartDocument );
             if( aPageSupp != null )
-                maDrawPage = (XDrawPage) UnoRuntime.queryInterface(
+                maDrawPage = UnoRuntime.queryInterface(
                     XDrawPage.class, aPageSupp.getDrawPage() );
 
             // get a factory for creating shapes
-            maShapeFactory = (XMultiServiceFactory) UnoRuntime.queryInterface(
+            maShapeFactory = UnoRuntime.queryInterface(
                 XMultiServiceFactory.class, maChartDocument );
         }
     }
@@ -112,13 +112,13 @@ public class JavaSampleChartAddIn extends WeakBase implements
             maTopLine == null )
         {
             // try to recycle loaded shapes
-            XPropertySet aDocProp = (XPropertySet) UnoRuntime.queryInterface(
+            XPropertySet aDocProp = UnoRuntime.queryInterface(
                 XPropertySet.class, maChartDocument );
             if( aDocProp != null )
             {
                 try
                 {
-                    XIndexAccess aShapesIA = (XIndexAccess) UnoRuntime.queryInterface(
+                    XIndexAccess aShapesIA = UnoRuntime.queryInterface(
                         XIndexAccess.class, aDocProp.getPropertyValue( "AdditionalShapes" ));
                     if( aShapesIA != null &&
                         aShapesIA.getCount() > 0 )
@@ -127,11 +127,11 @@ public class JavaSampleChartAddIn extends WeakBase implements
                         String aName;
                         for( int i = aShapesIA.getCount() - 1; i >= 0; --i )
                         {
-                            aShape = (XShape) UnoRuntime.queryInterface(
+                            aShape = UnoRuntime.queryInterface(
                                 XShape.class, aShapesIA.getByIndex( i ));
                             if( aShape != null )
                             {
-                                XPropertySet aProp = (XPropertySet) UnoRuntime.queryInterface(
+                                XPropertySet aProp = UnoRuntime.queryInterface(
                                     XPropertySet.class, aShape );
                                 aName = (String) aProp.getPropertyValue( "Name" );
 
@@ -159,12 +159,12 @@ public class JavaSampleChartAddIn extends WeakBase implements
         {
             if( maTopLine == null )
             {
-                maTopLine = (XShape) UnoRuntime.queryInterface(
+                maTopLine = UnoRuntime.queryInterface(
                     XShape.class, maShapeFactory.createInstance( "com.sun.star.drawing.LineShape" ));
                 maDrawPage.add( maTopLine );
 
                 // make line red and thicker
-                XPropertySet aShapeProp = (XPropertySet) UnoRuntime.queryInterface(
+                XPropertySet aShapeProp = UnoRuntime.queryInterface(
                     XPropertySet.class, maTopLine );
 
                 aShapeProp.setPropertyValue( "LineColor", new Integer( 0xe01010 ));
@@ -182,12 +182,12 @@ public class JavaSampleChartAddIn extends WeakBase implements
         {
             if( maBottomLine == null )
             {
-                maBottomLine = (XShape) UnoRuntime.queryInterface(
+                maBottomLine = UnoRuntime.queryInterface(
                     XShape.class, maShapeFactory.createInstance( "com.sun.star.drawing.LineShape" ));
                 maDrawPage.add( maBottomLine );
 
                 // make line green and thicker
-                XPropertySet aShapeProp = (XPropertySet) UnoRuntime.queryInterface(
+                XPropertySet aShapeProp = UnoRuntime.queryInterface(
                     XPropertySet.class, maBottomLine );
 
                 aShapeProp.setPropertyValue( "LineColor", new Integer( 0x10e010 ));
@@ -211,18 +211,18 @@ public class JavaSampleChartAddIn extends WeakBase implements
         // --------------
 
         // get data
-        XChartDataArray aDataArray = (XChartDataArray) UnoRuntime.queryInterface(
+        XChartDataArray aDataArray = UnoRuntime.queryInterface(
             XChartDataArray.class, maChartDocument.getData());
         double aData[][] = aDataArray.getData();
 
         // get axes
         XDiagram aDiagram = maChartDocument.getDiagram();
-        XShape aXAxis = (XShape) UnoRuntime.queryInterface(
-            XShape.class, ((XAxisXSupplier) UnoRuntime.queryInterface(
-                               XAxisXSupplier.class, aDiagram )).getXAxis() );
-        XShape aYAxis = (XShape) UnoRuntime.queryInterface(
-            XShape.class, ((XAxisYSupplier) UnoRuntime.queryInterface(
-                               XAxisYSupplier.class, aDiagram )).getYAxis() );
+        XShape aXAxis = UnoRuntime.queryInterface(
+            XShape.class, UnoRuntime.queryInterface(
+                               XAxisXSupplier.class, aDiagram ).getXAxis() );
+        XShape aYAxis = UnoRuntime.queryInterface(
+            XShape.class, UnoRuntime.queryInterface(
+                               XAxisYSupplier.class, aDiagram ).getYAxis() );
 
         // calculate points for hull
         final int nLength = aData.length;
@@ -253,11 +253,11 @@ public class JavaSampleChartAddIn extends WeakBase implements
         // apply point sequences to lines
         try
         {
-            XPropertySet aShapeProp = (XPropertySet) UnoRuntime.queryInterface(
+            XPropertySet aShapeProp = UnoRuntime.queryInterface(
                 XPropertySet.class, maTopLine );
             aShapeProp.setPropertyValue( "PolyPolygon", aMaxPtSeq );
 
-            aShapeProp = (XPropertySet) UnoRuntime.queryInterface(
+            aShapeProp = UnoRuntime.queryInterface(
                 XPropertySet.class, maBottomLine );
             aShapeProp.setPropertyValue( "PolyPolygon", aMinPtSeq );
         }
@@ -330,20 +330,20 @@ public class JavaSampleChartAddIn extends WeakBase implements
     // XShape : XDiagram
     public Size getSize() throws RuntimeException
     {
-        return ((XShape) UnoRuntime.queryInterface( XShape.class, maChartDocument.getDiagram())).getSize();
+        return UnoRuntime.queryInterface( XShape.class, maChartDocument.getDiagram()).getSize();
     }
     public void setSize( Size aSize ) throws RuntimeException, PropertyVetoException
     {
-        ((XShape) UnoRuntime.queryInterface( XShape.class, maChartDocument.getDiagram())).setSize( aSize );
+        UnoRuntime.queryInterface( XShape.class, maChartDocument.getDiagram()).setSize( aSize );
     }
 
     public Point getPosition() throws RuntimeException
     {
-        return ((XShape) UnoRuntime.queryInterface( XShape.class, maChartDocument.getDiagram())).getPosition();
+        return UnoRuntime.queryInterface( XShape.class, maChartDocument.getDiagram()).getPosition();
     }
     public void setPosition( Point aPos ) throws RuntimeException
     {
-        ((XShape) UnoRuntime.queryInterface( XShape.class, maChartDocument.getDiagram())).setPosition( aPos );
+        UnoRuntime.queryInterface( XShape.class, maChartDocument.getDiagram()).setPosition( aPos );
     }
 
     // XShapeDescriptor : XShape : XDiagram
@@ -370,7 +370,7 @@ public class JavaSampleChartAddIn extends WeakBase implements
 
         if( aAxis != null )
         {
-            XPropertySet aAxisProp = (XPropertySet) UnoRuntime.queryInterface(
+            XPropertySet aAxisProp = UnoRuntime.queryInterface(
                 XPropertySet.class, aAxis );
 
             try
@@ -386,13 +386,13 @@ public class JavaSampleChartAddIn extends WeakBase implements
                     if( bVertical )
                     {
                         nResult = aAxis.getPosition().Y +
-                            (int)((double)(aAxis.getSize().Height) *
+                            (int)((aAxis.getSize().Height) *
                                   (1.0 - (( fValue - fMin ) / fRange )));
                     }
                     else
                     {
                         nResult = aAxis.getPosition().X +
-                            (int)((double)(aAxis.getSize().Width) *
+                            (int)((aAxis.getSize().Width) *
                                   (( fValue - fMin ) / fRange ));
                     }
                 }
diff --git a/odk/examples/DevelopersGuide/Charts/ListenAtCalcRangeInDraw.java b/odk/examples/DevelopersGuide/Charts/ListenAtCalcRangeInDraw.java
index 27cf351be271..266f07a9c728 100644
--- a/odk/examples/DevelopersGuide/Charts/ListenAtCalcRangeInDraw.java
+++ b/odk/examples/DevelopersGuide/Charts/ListenAtCalcRangeInDraw.java
@@ -95,7 +95,7 @@ public class ListenAtCalcRangeInDraw implements XChartDataChangeEventListener
             "com.sun.star.chart.XYDiagram" );
 
         // attach the data coming from the cell range to the chart
-        maChartData = (XChartData) UnoRuntime.queryInterface( XChartData.class, aRange );
+        maChartData = UnoRuntime.queryInterface( XChartData.class, aRange );
         maChartDocument.attachData( maChartData );
     }
 
@@ -105,17 +105,17 @@ public class ListenAtCalcRangeInDraw implements XChartDataChangeEventListener
     {
         try
         {
-            ((XPropertySet) UnoRuntime.queryInterface(
-                XPropertySet.class, maChartDocument )).setPropertyValue(
+            UnoRuntime.queryInterface(
+                XPropertySet.class, maChartDocument ).setPropertyValue(
                 "HasSubTitle", new Boolean( true ));
 
             // start listening for death of spreadsheet
-            ((XComponent) UnoRuntime.queryInterface(
-                XComponent.class, maSheetDoc )).addEventListener( this );
+            UnoRuntime.queryInterface(
+                XComponent.class, maSheetDoc ).addEventListener( this );
 
             // start listening for death of chart
-            ((XComponent) UnoRuntime.queryInterface(
-                XComponent.class, maChartDocument )).addEventListener( this );
+            UnoRuntime.queryInterface(
+                XComponent.class, maChartDocument ).addEventListener( this );
 
             //start listening for change of data
             maChartData.addChartDataChangeEventListener( this );
@@ -146,10 +146,10 @@ public class ListenAtCalcRangeInDraw implements XChartDataChangeEventListener
         maChartData.removeChartDataChangeEventListener( this );
 
         // remove dispose listeners
-        ((XComponent) UnoRuntime.queryInterface(
-            XComponent.class, maSheetDoc )).removeEventListener( this );
-        ((XComponent) UnoRuntime.queryInterface(
-            XComponent.class, maChartDocument )).removeEventListener( this );
+        UnoRuntime.queryInterface(
+            XComponent.class, maSheetDoc ).removeEventListener( this );
+        UnoRuntime.queryInterface(
+            XComponent.class, maChartDocument ).removeEventListener( this );
 
         System.exit( 0 );
     }
@@ -164,12 +164,12 @@ public class ListenAtCalcRangeInDraw implements XChartDataChangeEventListener
 
         try
         {
-            XPropertySet aDocProp = (XPropertySet) UnoRuntime.queryInterface(
+            XPropertySet aDocProp = UnoRuntime.queryInterface(
                 XPropertySet.class, maChartDocument );
             aDocProp.setPropertyValue( "HasMainTitle", new Boolean( true ));
 
-            ((XPropertySet) UnoRuntime.queryInterface(
-                XPropertySet.class, maChartDocument.getSubTitle())).setPropertyValue(
+            UnoRuntime.queryInterface(
+                XPropertySet.class, maChartDocument.getSubTitle()).setPropertyValue(
                 "String", aTitle );
 
             maChartDocument.attachData( maChartData );
diff --git a/odk/examples/DevelopersGuide/Charts/SelectionChangeListener.java b/odk/examples/DevelopersGuide/Charts/SelectionChangeListener.java
index 0f55fd1ddf00..5c10a0f55433 100644
--- a/odk/examples/DevelopersGuide/Charts/SelectionChangeListener.java
+++ b/odk/examples/DevelopersGuide/Charts/SelectionChangeListener.java
@@ -83,8 +83,8 @@ public class SelectionChangeListener implements XSelectionChangeListener {
 
         // insert a cell range with 4 columns and 12 rows filled with random numbers
         XCellRange aRange = aCalcHelper.insertRandomRange( 4, 12 );
-        CellRangeAddress aRangeAddress = ((XCellRangeAddressable) UnoRuntime.queryInterface(
-            XCellRangeAddressable.class, aRange)).getRangeAddress();
+        CellRangeAddress aRangeAddress = UnoRuntime.queryInterface(
+            XCellRangeAddressable.class, aRange).getRangeAddress();
 
         // change view to sheet containing the chart
         aCalcHelper.raiseChartSheet();
@@ -113,10 +113,10 @@ public class SelectionChangeListener implements XSelectionChangeListener {
 
         while( bTrying ) {
             // start listening for selection changes
-            XSelectionSupplier aSelSupp = (XSelectionSupplier) UnoRuntime.queryInterface(
+            XSelectionSupplier aSelSupp = UnoRuntime.queryInterface(
                 XSelectionSupplier.class,
-                (((XModel) UnoRuntime.queryInterface(
-                XModel.class, maChartDocument )).getCurrentController()) );
+                (UnoRuntime.queryInterface(
+                XModel.class, maChartDocument ).getCurrentController()) );
             if( aSelSupp != null ) {
                 aSelSupp.addSelectionChangeListener( this );
                 System.out.println( "Successfully attached as selection change listener" );
@@ -124,7 +124,7 @@ public class SelectionChangeListener implements XSelectionChangeListener {
             }
 
             // start listening for death of Controller
-            XComponent aComp = (XComponent) UnoRuntime.queryInterface( XComponent.class, aSelSupp );
+            XComponent aComp = UnoRuntime.queryInterface( XComponent.class, aSelSupp );
             if( aComp != null ) {
                 aComp.addEventListener( this );
                 System.out.println( "Successfully attached as dispose listener" );
@@ -144,13 +144,13 @@ public class SelectionChangeListener implements XSelectionChangeListener {
         System.out.println( "disposing called.  detaching as listener" );
 
         // stop listening for selection changes
-        XSelectionSupplier aCtrl = (XSelectionSupplier) UnoRuntime.queryInterface(
+        XSelectionSupplier aCtrl = UnoRuntime.queryInterface(
             XSelectionSupplier.class, aSourceObj );
         if( aCtrl != null )
             aCtrl.removeSelectionChangeListener( this );
 
         // remove as dispose listener
-        XComponent aComp = (XComponent) UnoRuntime.queryInterface( XComponent.class, aSourceObj );
+        XComponent aComp = UnoRuntime.queryInterface( XComponent.class, aSourceObj );
         if( aComp != null )
             aComp.removeEventListener( this );
 
@@ -162,7 +162,7 @@ public class SelectionChangeListener implements XSelectionChangeListener {
 
     // XSelectionChangeListener
     public void selectionChanged( EventObject aEvent ) {
-        XController aCtrl = (XController) UnoRuntime.queryInterface( XController.class, aEvent.Source );
+        XController aCtrl = UnoRuntime.queryInterface( XController.class, aEvent.Source );
         if( aCtrl != null ) {
             XMultiComponentFactory mMCF = maContext.getServiceManager();
 
@@ -195,18 +195,18 @@ public class SelectionChangeListener implements XSelectionChangeListener {
                 Object oDesktop = mMCF.createInstanceWithContext("com.sun.star.frame.Desktop", maContext);
                 Object oToolKit = mMCF.createInstanceWithContext("com.sun.star.awt.Toolkit", maContext);
 
-                aDesktop = (XDesktop) UnoRuntime.queryInterface(XDesktop.class, oDesktop);
-                aToolKit = (XInterface) UnoRuntime.queryInterface(XInterface.class, oToolKit);
+                aDesktop = UnoRuntime.queryInterface(XDesktop.class, oDesktop);
+                aToolKit = UnoRuntime.queryInterface(XInterface.class, oToolKit);
             } catch (Exception ex) {
                 ex.printStackTrace();
             }
 
             XWindow xWin = aDesktop.getCurrentFrame().getContainerWindow();
-            XWindowPeer aWinPeer = (XWindowPeer) UnoRuntime.queryInterface(XWindowPeer.class, xWin);
+            XWindowPeer aWinPeer = UnoRuntime.queryInterface(XWindowPeer.class, xWin);
 
             Rectangle aRect = new Rectangle();
             int button = com.sun.star.awt.MessageBoxButtons.BUTTONS_OK;
-            XMessageBoxFactory aMBF = (XMessageBoxFactory) UnoRuntime.queryInterface(XMessageBoxFactory.class, aToolKit);
+            XMessageBoxFactory aMBF = UnoRuntime.queryInterface(XMessageBoxFactory.class, aToolKit);
             XMessageBox xMB = aMBF.createMessageBox(aWinPeer, aRect, "infobox" , button, "Event-Notify", "Listener was called, selcetion has changed");
             xMB.execute();
         }
diff --git a/odk/examples/DevelopersGuide/Components/Addons/JobsAddon/AsyncJob.java b/odk/examples/DevelopersGuide/Components/Addons/JobsAddon/AsyncJob.java
index 260ac5597e9e..a0d5142563e1 100644
--- a/odk/examples/DevelopersGuide/Components/Addons/JobsAddon/AsyncJob.java
+++ b/odk/examples/DevelopersGuide/Components/Addons/JobsAddon/AsyncJob.java
@@ -253,7 +253,7 @@ public class AsyncJob extends    WeakBase implements XServiceInfo, XAsyncJob
         try
         {
             // get access to the office toolkit environment
-            com.sun.star.awt.XToolkit xKit = (com.sun.star.awt.XToolkit)UnoRuntime.queryInterface(
+            com.sun.star.awt.XToolkit xKit = UnoRuntime.queryInterface(
                  com.sun.star.awt.XToolkit.class,
                  m_xCmpCtx.getServiceManager().createInstanceWithContext("com.sun.star.awt.Toolkit",
                                                                          m_xCmpCtx));
@@ -267,13 +267,13 @@ public class AsyncJob extends    WeakBase implements XServiceInfo, XAsyncJob
                                             com.sun.star.awt.WindowAttribute.CLOSEABLE;
             aDescriptor.Type              = com.sun.star.awt.WindowClass.MODALTOP;
             aDescriptor.ParentIndex       = 1;
-            aDescriptor.Parent            = (com.sun.star.awt.XWindowPeer)UnoRuntime.queryInterface(
+            aDescriptor.Parent            = UnoRuntime.queryInterface(
                                                 com.sun.star.awt.XWindowPeer.class,
                                                 xParent);
 
             // create the info box window
             com.sun.star.awt.XWindowPeer xPeer    = xKit.createWindow(aDescriptor);
-            com.sun.star.awt.XMessageBox xInfoBox = (com.sun.star.awt.XMessageBox)UnoRuntime.queryInterface(
+            com.sun.star.awt.XMessageBox xInfoBox = UnoRuntime.queryInterface(
                                                         com.sun.star.awt.XMessageBox.class,
                                                         xPeer);
             if (xInfoBox == null)