Java cleanup - remove unnecessary casts in the ODK code

Change-Id: I1ab8ad5182444fc3eebd2349135a0240ebbe0fd4
Reviewed-on: https://gerrit.libreoffice.org/3566
Reviewed-by: Fridrich Strba <fridrich@documentfoundation.org>
Tested-by: Fridrich Strba <fridrich@documentfoundation.org>

18 files changed, 104 insertions, 105 deletions

diff --git a/odk/examples/DevelopersGuide/Forms/ControlLock.java b/odk/examples/DevelopersGuide/Forms/ControlLock.java
index a24a28203119..efce0c990462 100644
--- a/odk/examples/DevelopersGuide/Forms/ControlLock.java
+++ b/odk/examples/DevelopersGuide/Forms/ControlLock.java
@@ -65,7 +65,7 @@ class LockControlModels extends ComponentTreeTraversal
         if ( !super.shouldStepInto( xContainer ) )
             return false;   // don't try to be more clever than our base class
 
-        XForm xForm = (XForm)UnoRuntime.queryInterface( XForm.class, xContainer );
+        XForm xForm = UnoRuntime.queryInterface( XForm.class, xContainer );
         if ( ( null != xForm ) && ( m_nLevel > 1 ) )
             // don't step into sub forms - we only handle the form we were originally
             // applied to
@@ -169,7 +169,7 @@ class ControlLock implements XRowSetListener
         m_bLockingEnabled = bLock;
 
         // add or remove ourself as listener to get notified of cursor moves
-        XRowSet xRowSet = (XRowSet)UnoRuntime.queryInterface(
+        XRowSet xRowSet = UnoRuntime.queryInterface(
             XRowSet.class, m_xForm );
         if ( m_bLockingEnabled )
         {
diff --git a/odk/examples/DevelopersGuide/Forms/DataAwareness.java b/odk/examples/DevelopersGuide/Forms/DataAwareness.java
index a5aa106fb9d2..70323e25a373 100644
--- a/odk/examples/DevelopersGuide/Forms/DataAwareness.java
+++ b/odk/examples/DevelopersGuide/Forms/DataAwareness.java
@@ -76,7 +76,7 @@ class PrintComponentTree extends ComponentTreeTraversal
     public void handle( Object aFormComponent ) throws com.sun.star.uno.Exception
     {
         // the name of the child
-        XNamed xName = (XNamed)UnoRuntime.queryInterface( XNamed.class, aFormComponent );
+        XNamed xName = UnoRuntime.queryInterface( XNamed.class, aFormComponent );
 
         // if it's a form control model, check it's type
         XPropertySet xProps = UNO.queryPropertySet( aFormComponent );
@@ -183,7 +183,7 @@ public class DataAwareness extends DocumentBasedExample implements XPropertyChan
     {
         String sObjectName;
 
-        XNamed xNameAcc = (XNamed)UnoRuntime.queryInterface( XNamed.class, xContainer );
+        XNamed xNameAcc = UnoRuntime.queryInterface( XNamed.class, xContainer );
         if ( null == xNameAcc )
             sObjectName = new String( "<unnamed>" );
         else
@@ -244,12 +244,12 @@ public class DataAwareness extends DocumentBasedExample implements XPropertyChan
 
 
                         // get the columns of our master form
-                        XColumnsSupplier xSuppCols = (XColumnsSupplier)UnoRuntime.queryInterface(
+                        XColumnsSupplier xSuppCols = UnoRuntime.queryInterface(
                             XColumnsSupplier.class, xFormProps );
                         XNameAccess xCols = xSuppCols.getColumns();
 
                         // and update the date column with a NULL value
-                        XColumnUpdate xDateColumn = (XColumnUpdate)UnoRuntime.queryInterface(
+                        XColumnUpdate xDateColumn = UnoRuntime.queryInterface(
                             XColumnUpdate.class, xCols.getByName( "SALEDATE" ) );
                         xDateColumn.updateNull();
 
@@ -644,11 +644,11 @@ public class DataAwareness extends DocumentBasedExample implements XPropertyChan
         // the container to insert columns into
         XIndexContainer xColumnContainer = UNO.queryIndexContainer( aGridModel );
         // the factory for creating column models
-        XGridColumnFactory xColumnFactory = (XGridColumnFactory)UnoRuntime.queryInterface(
+        XGridColumnFactory xColumnFactory = UnoRuntime.queryInterface(
             XGridColumnFactory.class, aGridModel );
 
         // (let) create the new col
-        XInterface xNewCol = (XInterface)xColumnFactory.createColumn( sColumnService );
+        XInterface xNewCol = xColumnFactory.createColumn( sColumnService );
         XPropertySet xColProps = UNO.queryPropertySet( xNewCol );
 
         // some props
@@ -913,7 +913,7 @@ public class DataAwareness extends DocumentBasedExample implements XPropertyChan
         m_aSalesNameValidator.enableColumnWatch( false );
 
         // remove our own reset listener from the form
-        XNameAccess xMasterAsNames = (XNameAccess)UnoRuntime.queryInterface(
+        XNameAccess xMasterAsNames = UnoRuntime.queryInterface(
             XNameAccess.class, m_xMasterForm );
         XReset xFormReset = UNO.queryReset( xMasterAsNames.getByName( "Sales" ) );
         xFormReset.removeResetListener( this );
diff --git a/odk/examples/DevelopersGuide/Forms/DocumentBasedExample.java b/odk/examples/DevelopersGuide/Forms/DocumentBasedExample.java
index 2b10138471e3..456e4125c9d2 100644
--- a/odk/examples/DevelopersGuide/Forms/DocumentBasedExample.java
+++ b/odk/examples/DevelopersGuide/Forms/DocumentBasedExample.java
@@ -159,9 +159,8 @@ public abstract class DocumentBasedExample implements com.sun.star.lang.XEventLi
             // close our document
             if ( m_document != null )
             {
-                XCloseable closeDoc = (XCloseable)
-                    UnoRuntime.queryInterface( XCloseable.class,
-                                               m_document.getDocument() );
+                XCloseable closeDoc = UnoRuntime.queryInterface( XCloseable.class,
+                                           m_document.getDocument() );
                 if (closeDoc != null)
                     closeDoc.close( true );
                 else
diff --git a/odk/examples/DevelopersGuide/Forms/DocumentHelper.java b/odk/examples/DevelopersGuide/Forms/DocumentHelper.java
index 9132a9c27f0a..b10f52d27440 100644
--- a/odk/examples/DevelopersGuide/Forms/DocumentHelper.java
+++ b/odk/examples/DevelopersGuide/Forms/DocumentHelper.java
@@ -58,7 +58,7 @@ public class DocumentHelper
     public DocumentHelper( XComponentContext xContext, XComponent document )
     {
         m_remoteContext = xContext;
-        m_orb = (XMultiServiceFactory)UnoRuntime.queryInterface(
+        m_orb = UnoRuntime.queryInterface(
             XMultiServiceFactory.class, m_remoteContext.getServiceManager());
         m_documentComponent = document;
     }
@@ -66,7 +66,7 @@ public class DocumentHelper
     /* ------------------------------------------------------------------ */
     protected static XComponent implCreateBlankDocument( XComponentContext xCtx, String factoryURL ) throws com.sun.star.uno.Exception
     {
-        XComponentLoader aLoader = (XComponentLoader)UnoRuntime.queryInterface(
+        XComponentLoader aLoader = UnoRuntime.queryInterface(
             XComponentLoader.class,
             xCtx.getServiceManager().createInstanceWithContext(
                 "com.sun.star.frame.Desktop", xCtx ));
@@ -100,7 +100,7 @@ public class DocumentHelper
     public DocumentViewHelper getCurrentView( )
     {
         // get the model interface for the document
-        XModel xDocModel = (XModel)UnoRuntime.queryInterface(XModel.class, m_documentComponent );
+        XModel xDocModel = UnoRuntime.queryInterface(XModel.class, m_documentComponent );
         // get the current controller for the document - as a controller is tied to a view,
         // this gives us the currently active view for the document.
         XController xController = xDocModel.getCurrentController();
@@ -137,7 +137,7 @@ public class DocumentHelper
         }
 
         // outta here
-        return (XIndexContainer)UnoRuntime.queryInterface( XIndexContainer.class, xNewForm );
+        return UnoRuntime.queryInterface( XIndexContainer.class, xNewForm );
     }
 
     /* ------------------------------------------------------------------ */
@@ -152,7 +152,7 @@ public class DocumentHelper
     public XIndexContainer createSubForm( Object aParentContainer, String sInitialName )
         throws com.sun.star.uno.Exception
     {
-        XIndexContainer xParentContainer = (XIndexContainer)UnoRuntime.queryInterface(
+        XIndexContainer xParentContainer = UnoRuntime.queryInterface(
             XIndexContainer.class, aParentContainer );
         return createSubForm( xParentContainer, sInitialName );
     }
@@ -169,8 +169,8 @@ public class DocumentHelper
     public XIndexContainer createSiblingForm( Object aForm, String sInitialName ) throws com.sun.star.uno.Exception
     {
         // get the parent
-        XChild xAsChild = (XChild)UnoRuntime.queryInterface( XChild.class, aForm );
-        XIndexContainer xContainer = (XIndexContainer)UnoRuntime.queryInterface(
+        XChild xAsChild = UnoRuntime.queryInterface( XChild.class, aForm );
+        XIndexContainer xContainer = UnoRuntime.queryInterface(
             XIndexContainer.class, xAsChild.getParent() );;
         // append a new form to this parent container
         return createSubForm( xContainer, sInitialName );
@@ -181,13 +181,13 @@ public class DocumentHelper
     */
     static public DocumentHelper getDocumentForComponent( Object aFormComponent, XComponentContext xCtx )
     {
-        XChild xChild = (XChild)UnoRuntime.queryInterface( XChild.class, aFormComponent );
+        XChild xChild = UnoRuntime.queryInterface( XChild.class, aFormComponent );
         XModel xModel = null;
         while ( ( null != xChild ) && ( null == xModel ) )
         {
             XInterface xParent = (XInterface)xChild.getParent();
-            xModel = (XModel)UnoRuntime.queryInterface( XModel.class, xParent );
-            xChild = (XChild)UnoRuntime.queryInterface( XChild.class, xParent );
+            xModel = UnoRuntime.queryInterface( XModel.class, xParent );
+            xChild = UnoRuntime.queryInterface( XChild.class, xParent );
         }
 
         return new DocumentHelper( xCtx, xModel );
@@ -212,7 +212,7 @@ public class DocumentHelper
     */
     public DocumentType classify( )
     {
-        XServiceInfo xSI = (XServiceInfo)UnoRuntime.queryInterface(
+        XServiceInfo xSI = UnoRuntime.queryInterface(
             XServiceInfo.class, m_documentComponent );
 
         if ( xSI.supportsService( "com.sun.star.text.TextDocument" ) )
@@ -234,11 +234,11 @@ public class DocumentHelper
      */
     protected XDrawPage getDrawPage( int index ) throws com.sun.star.lang.IndexOutOfBoundsException, com.sun.star.lang.WrappedTargetException
     {
-        XDrawPagesSupplier xSuppPages = (XDrawPagesSupplier)UnoRuntime.queryInterface(
+        XDrawPagesSupplier xSuppPages = UnoRuntime.queryInterface(
             XDrawPagesSupplier.class, getDocument() );
         XDrawPages xPages = xSuppPages.getDrawPages();
 
-        return (XDrawPage)UnoRuntime.queryInterface( XDrawPage.class, xPages.getByIndex( index ) );
+        return UnoRuntime.queryInterface( XDrawPage.class, xPages.getByIndex( index ) );
     }
 
     /* ------------------------------------------------------------------ */
@@ -249,18 +249,18 @@ public class DocumentHelper
         XDrawPage xReturn;
 
         // in case of a Writer document, this is rather easy: simply ask the XDrawPageSupplier
-        XDrawPageSupplier xSuppPage = (XDrawPageSupplier)UnoRuntime.queryInterface(
+        XDrawPageSupplier xSuppPage = UnoRuntime.queryInterface(
             XDrawPageSupplier.class, getDocument() );
         if ( null != xSuppPage )
             xReturn = xSuppPage.getDrawPage();
         else
         {   // the model itself is no draw page supplier - okay, it may be a Writer or Calc document
             // (or any other multi-page document)
-            XDrawPagesSupplier xSuppPages = (XDrawPagesSupplier)UnoRuntime.queryInterface(
+            XDrawPagesSupplier xSuppPages = UnoRuntime.queryInterface(
                 XDrawPagesSupplier.class, getDocument() );
             XDrawPages xPages = xSuppPages.getDrawPages();
 
-            xReturn = (XDrawPage)UnoRuntime.queryInterface( XDrawPage.class, xPages.getByIndex( 0 ) );
+            xReturn = UnoRuntime.queryInterface( XDrawPage.class, xPages.getByIndex( 0 ) );
 
             // Note that this is no really error-proof code: If the document model does not support the
             // XDrawPagesSupplier interface, or if the pages collection returned is empty, this will break.
@@ -274,7 +274,7 @@ public class DocumentHelper
     */
     protected XNameContainer getFormComponentTreeRoot( ) throws com.sun.star.uno.Exception
     {
-        XFormsSupplier xSuppForms = (XFormsSupplier)UnoRuntime.queryInterface(
+        XFormsSupplier xSuppForms = UnoRuntime.queryInterface(
             XFormsSupplier.class, getMainDrawPage( ) );
 
         XNameContainer xFormsCollection = null;
@@ -290,7 +290,7 @@ public class DocumentHelper
     */
     public XInterface createInstance( String serviceSpecifier ) throws com.sun.star.uno.Exception
     {
-        XMultiServiceFactory xORB = (XMultiServiceFactory)UnoRuntime.queryInterface( XMultiServiceFactory.class,
+        XMultiServiceFactory xORB = UnoRuntime.queryInterface( XMultiServiceFactory.class,
             m_documentComponent );
         return (XInterface)xORB.createInstance( serviceSpecifier );
     }
@@ -300,7 +300,7 @@ public class DocumentHelper
     */
     public XInterface createInstanceWithArguments( String serviceSpecifier, Object[] arguments ) throws com.sun.star.uno.Exception
     {
-        XMultiServiceFactory xORB = (XMultiServiceFactory)UnoRuntime.queryInterface( XMultiServiceFactory.class,
+        XMultiServiceFactory xORB = UnoRuntime.queryInterface( XMultiServiceFactory.class,
             m_documentComponent );
         return (XInterface) xORB.createInstanceWithArguments( serviceSpecifier, arguments );
     }
diff --git a/odk/examples/DevelopersGuide/Forms/DocumentViewHelper.java b/odk/examples/DevelopersGuide/Forms/DocumentViewHelper.java
index 7b160831b83c..25308ea29cf1 100644
--- a/odk/examples/DevelopersGuide/Forms/DocumentViewHelper.java
+++ b/odk/examples/DevelopersGuide/Forms/DocumentViewHelper.java
@@ -90,12 +90,12 @@ class DocumentViewHelper
         // go get the current view
         XController xController = (XController)get( XController.class );
         // go get the dispatch provider of it's frame
-        XDispatchProvider xProvider = (XDispatchProvider)UnoRuntime.queryInterface(
+        XDispatchProvider xProvider = UnoRuntime.queryInterface(
             XDispatchProvider.class, xController.getFrame() );
         if ( null != xProvider )
         {
             // need an URLTransformer
-            XURLTransformer xTransformer = (XURLTransformer)UnoRuntime.queryInterface(
+            XURLTransformer xTransformer = UnoRuntime.queryInterface(
                     XURLTransformer.class, m_orb.createInstance( "com.sun.star.util.URLTransformer" ) );
             xTransformer.parseStrict( aURL );
 
@@ -120,7 +120,7 @@ class DocumentViewHelper
     public XFormController getFormController( Object _form )
     {
         XFormLayerAccess formLayer = (XFormLayerAccess)get( XFormLayerAccess.class );
-        return formLayer.getFormController( (XForm)UnoRuntime.queryInterface( XForm.class, _form ) );
+        return formLayer.getFormController( UnoRuntime.queryInterface( XForm.class, _form ) );
     }
 
     /* ------------------------------------------------------------------ */
@@ -141,14 +141,14 @@ class DocumentViewHelper
     /* ------------------------------------------------------------------ */
     public XControl getFormControl( Object aModel ) throws com.sun.star.uno.Exception
     {
-        XControlModel xModel = (XControlModel)UnoRuntime.queryInterface( XControlModel.class, aModel );
+        XControlModel xModel = UnoRuntime.queryInterface( XControlModel.class, aModel );
         return getFormControl( xModel );
     }
 
     /* ------------------------------------------------------------------ */
     public Object getFormControl( Object aModel, Class aInterfaceClass ) throws com.sun.star.uno.Exception
     {
-        XControlModel xModel = (XControlModel)UnoRuntime.queryInterface( XControlModel.class, aModel );
+        XControlModel xModel = UnoRuntime.queryInterface( XControlModel.class, aModel );
         return UnoRuntime.queryInterface( aInterfaceClass, getFormControl( xModel ) );
     }
 
@@ -179,7 +179,7 @@ class DocumentViewHelper
         XControl xControl = getFormControl( xModel );
 
         // the focus can be set to an XWindow only
-        XWindow xControlWindow = (XWindow)UnoRuntime.queryInterface( XWindow.class,
+        XWindow xControlWindow = UnoRuntime.queryInterface( XWindow.class,
             xControl );
 
         // grab the focus
@@ -202,7 +202,7 @@ class DocumentViewHelper
             XPropertySet xControlProps = UNO.queryPropertySet( xForm.getByIndex( i ) );
             if ( FormComponentType.FIXEDTEXT != ((Short)xControlProps.getPropertyValue( "ClassId" )).shortValue() )
             {
-                XControlModel xControlModel = (XControlModel)UnoRuntime.queryInterface(
+                XControlModel xControlModel = UnoRuntime.queryInterface(
                     XControlModel.class, xControlProps );
                 // set the focus to this control
                 grabControlFocus( xControlModel );
diff --git a/odk/examples/DevelopersGuide/Forms/FLTools.java b/odk/examples/DevelopersGuide/Forms/FLTools.java
index 3f87e77e1bd6..143816625e44 100644
--- a/odk/examples/DevelopersGuide/Forms/FLTools.java
+++ b/odk/examples/DevelopersGuide/Forms/FLTools.java
@@ -64,7 +64,7 @@ public class FLTools
         URL[] aURL = new URL[] { new URL() };
         aURL[0].Complete = sURL;
         // need an URLTransformer
-        XURLTransformer xTransformer = (XURLTransformer)UnoRuntime.queryInterface(
+        XURLTransformer xTransformer = UnoRuntime.queryInterface(
             XURLTransformer.class,
             xCtx.getServiceManager().createInstanceWithContext(
                 "com.sun.star.util.URLTransformer", xCtx ) );
@@ -78,7 +78,7 @@ public class FLTools
     */
     public static String getName( Object aFormComponent ) throws com.sun.star.uno.Exception
     {
-        XNamed xNamed = (XNamed)UnoRuntime.queryInterface( XNamed.class,
+        XNamed xNamed = UnoRuntime.queryInterface( XNamed.class,
             aFormComponent );
         String sName = "";
         if ( null != xNamed )
@@ -130,7 +130,7 @@ public class FLTools
         int nIndex = -1;
 
         // norm the element
-        XInterface xElement = (XInterface)UnoRuntime.queryInterface(
+        XInterface xElement = UnoRuntime.queryInterface(
             XInterface.class, aElement );
 
         // get the container
@@ -142,7 +142,7 @@ public class FLTools
             for ( int i = 0; i < nCount; ++i )
             {
                 // compare with the element
-                XInterface xCurrent = (XInterface)UnoRuntime.queryInterface(
+                XInterface xCurrent = UnoRuntime.queryInterface(
                     XInterface.class, xIndexCont.getByIndex( 0 ) );
                 if ( xCurrent.equals( xElement ) )
                 {   // found
@@ -161,7 +161,7 @@ public class FLTools
     */
     static Object getParent( Object aComponent, Class aInterfaceClass )
     {
-        XChild xAsChild = (XChild)UnoRuntime.queryInterface( XChild.class, aComponent );
+        XChild xAsChild = UnoRuntime.queryInterface( XChild.class, aComponent );
 
         return UnoRuntime.queryInterface( aInterfaceClass, xAsChild.getParent() );
     }
@@ -179,7 +179,7 @@ public class FLTools
     */
     static public void disposeComponent( Object xComp ) throws java.lang.RuntimeException
     {
-        XComponent xComponent = (XComponent)UnoRuntime.queryInterface( XComponent.class,
+        XComponent xComponent = UnoRuntime.queryInterface( XComponent.class,
             xComp );
         if ( null != xComponent )
             xComponent.dispose();
@@ -190,7 +190,7 @@ public class FLTools
     */
     static public Object getModel( Object aControl, Class aInterfaceClass )
     {
-        XControl xControl = (XControl)UnoRuntime.queryInterface(
+        XControl xControl = UnoRuntime.queryInterface(
             XControl.class, aControl );
         XControlModel xModel = null;
         if ( null != xControl )
diff --git a/odk/examples/DevelopersGuide/Forms/FormLayer.java b/odk/examples/DevelopersGuide/Forms/FormLayer.java
index 1436591292a3..e7eb0699347b 100644
--- a/odk/examples/DevelopersGuide/Forms/FormLayer.java
+++ b/odk/examples/DevelopersGuide/Forms/FormLayer.java
@@ -87,9 +87,9 @@ public class FormLayer
         int nYPos, int nWidth, int nHeight, XIndexContainer xParentForm ) throws java.lang.Exception
     {
         // let the document create a shape
-        XMultiServiceFactory xDocAsFactory = (XMultiServiceFactory)UnoRuntime.queryInterface(
+        XMultiServiceFactory xDocAsFactory = UnoRuntime.queryInterface(
             XMultiServiceFactory.class, m_document.getDocument() );
-        XControlShape xShape = (XControlShape)UnoRuntime.queryInterface( XControlShape.class,
+        XControlShape xShape = UnoRuntime.queryInterface( XControlShape.class,
             xDocAsFactory.createInstance( "com.sun.star.drawing.ControlShape" ) );
 
         // position and size of the shape
@@ -103,7 +103,7 @@ public class FormLayer
 
         // create the form component (the model of a form control)
         String sQualifiedComponentName = "com.sun.star.form.component." + sFormComponentService;
-        XControlModel xModel = (XControlModel)UnoRuntime.queryInterface( XControlModel.class,
+        XControlModel xModel = UnoRuntime.queryInterface( XControlModel.class,
             m_document.getOrb().createInstance( sQualifiedComponentName ) );
 
         // insert the model into the form component hierarchy, if the caller gave us a location
@@ -118,7 +118,7 @@ public class FormLayer
         // add the shape to the shapes collection of the document
         XDrawPage pageWhereToInsert = ( m_insertPage != -1 ) ? m_document.getDrawPage( m_insertPage ) : m_document.getMainDrawPage();
 
-        XShapes xDocShapes = (XShapes)UnoRuntime.queryInterface( XShapes.class, pageWhereToInsert );
+        XShapes xDocShapes = UnoRuntime.queryInterface( XShapes.class, pageWhereToInsert );
         xDocShapes.add( xShape );
 
         // some initializations which are the same for all controls
@@ -240,7 +240,7 @@ public class FormLayer
     */
     public XPropertySet getRadioModelByRefValue( XPropertySet form, String name, String refValue ) throws com.sun.star.uno.Exception, java.lang.Exception
     {
-        XIndexAccess indexAccess = (XIndexAccess)UnoRuntime.queryInterface( XIndexAccess.class,
+        XIndexAccess indexAccess = UnoRuntime.queryInterface( XIndexAccess.class,
             form );
 
         for ( int i=0; i<indexAccess.getCount(); ++i )
@@ -265,7 +265,7 @@ public class FormLayer
     */
     public XPropertySet getRadioModelByTag( XPropertySet form, String name, String tag ) throws com.sun.star.uno.Exception, java.lang.Exception
     {
-        XIndexAccess indexAccess = (XIndexAccess)UnoRuntime.queryInterface( XIndexAccess.class,
+        XIndexAccess indexAccess = UnoRuntime.queryInterface( XIndexAccess.class,
             form );
 
         for ( int i=0; i<indexAccess.getCount(); ++i )
diff --git a/odk/examples/DevelopersGuide/Forms/GridFieldValidator.java b/odk/examples/DevelopersGuide/Forms/GridFieldValidator.java
index e32cccc147c2..073289f06bca 100644
--- a/odk/examples/DevelopersGuide/Forms/GridFieldValidator.java
+++ b/odk/examples/DevelopersGuide/Forms/GridFieldValidator.java
@@ -72,7 +72,7 @@ class GridFieldValidator implements XUpdateListener
         if ( bEnable == m_bWatching )
             return;
 
-        XUpdateBroadcaster xUpdate = (XUpdateBroadcaster)UnoRuntime.queryInterface(
+        XUpdateBroadcaster xUpdate = UnoRuntime.queryInterface(
             XUpdateBroadcaster.class, m_xWatchedColumn );
 
         if ( bEnable )
@@ -105,7 +105,7 @@ class GridFieldValidator implements XUpdateListener
             );
 
             // instantiate an interaction handler who can handle SQLExceptions
-            XInteractionHandler xHandler = (XInteractionHandler)UnoRuntime.queryInterface(
+            XInteractionHandler xHandler = UnoRuntime.queryInterface(
                 XInteractionHandler.class,
                 m_xCtx.getServiceManager().createInstanceWithContext(
                     "com.sun.star.task.InteractionHandler", m_xCtx ) );
diff --git a/odk/examples/DevelopersGuide/Forms/HsqlDatabase.java b/odk/examples/DevelopersGuide/Forms/HsqlDatabase.java
index 01a364c8f3f9..d56501ad9f19 100644
--- a/odk/examples/DevelopersGuide/Forms/HsqlDatabase.java
+++ b/odk/examples/DevelopersGuide/Forms/HsqlDatabase.java
@@ -65,9 +65,9 @@ public class HsqlDatabase
     {
         m_databaseDocumentFile = _docURL;
 
-        XNameAccess dbContext = (XNameAccess)UnoRuntime.queryInterface( XNameAccess.class,
+        XNameAccess dbContext = UnoRuntime.queryInterface( XNameAccess.class,
             m_context.getServiceManager().createInstanceWithContext( "com.sun.star.sdb.DatabaseContext", m_context ) );
-        XDocumentDataSource dataSource = (XDocumentDataSource)UnoRuntime.queryInterface( XDocumentDataSource.class,
+        XDocumentDataSource dataSource = UnoRuntime.queryInterface( XDocumentDataSource.class,
             dbContext.getByName( _docURL ) );
 
         m_databaseDocument = dataSource.getDatabaseDocument();
@@ -81,14 +81,14 @@ public class HsqlDatabase
         documentFile.deleteOnExit();
         m_databaseDocumentFile = URLHelper.getFileURLFromSystemPath( documentFile );
 
-        m_databaseDocument = (XOfficeDatabaseDocument)UnoRuntime.queryInterface(
+        m_databaseDocument = UnoRuntime.queryInterface(
             XOfficeDatabaseDocument.class, m_context.getServiceManager().createInstanceWithContext(
                 "com.sun.star.sdb.OfficeDatabaseDocument", m_context ) );
 
-        XPropertySet dsProperties = (XPropertySet)UnoRuntime.queryInterface( XPropertySet.class, m_databaseDocument.getDataSource() );
+        XPropertySet dsProperties = UnoRuntime.queryInterface( XPropertySet.class, m_databaseDocument.getDataSource() );
         dsProperties.setPropertyValue("URL", "sdbc:embedded:hsqldb");
 
-        XStorable storable = (XStorable)UnoRuntime.queryInterface( XStorable.class, m_databaseDocument );
+        XStorable storable = UnoRuntime.queryInterface( XStorable.class, m_databaseDocument );
         storable.storeAsURL( m_databaseDocumentFile, new PropertyValue[]{} );
     }
 
@@ -120,7 +120,7 @@ public class HsqlDatabase
     {
         if ( m_databaseDocument != null )
         {
-            XStorable storeDoc = (XStorable)UnoRuntime.queryInterface( XStorable.class,
+            XStorable storeDoc = UnoRuntime.queryInterface( XStorable.class,
                 m_databaseDocument );
             storeDoc.store();
         }
@@ -134,7 +134,7 @@ public class HsqlDatabase
     public void close()
     {
         // close connection
-        XCloseable closeConn = (XCloseable)UnoRuntime.queryInterface( XCloseable.class,
+        XCloseable closeConn = UnoRuntime.queryInterface( XCloseable.class,
             m_connection );
         if ( closeConn != null )
         {
@@ -149,7 +149,7 @@ public class HsqlDatabase
         m_connection = null;
 
         // close document
-        com.sun.star.util.XCloseable closeDoc = (com.sun.star.util.XCloseable)UnoRuntime.queryInterface(
+        com.sun.star.util.XCloseable closeDoc = UnoRuntime.queryInterface(
             com.sun.star.util.XCloseable.class, m_databaseDocument );
         if ( closeDoc != null )
         {
@@ -202,7 +202,7 @@ public class HsqlDatabase
     */
     XModel getModel()
     {
-        return (XModel)UnoRuntime.queryInterface( XModel.class, m_databaseDocument );
+        return UnoRuntime.queryInterface( XModel.class, m_databaseDocument );
     }
 
     /** returns the URL of the ODB document represented by this instance
diff --git a/odk/examples/DevelopersGuide/Forms/KeyGenerator.java b/odk/examples/DevelopersGuide/Forms/KeyGenerator.java
index 85a56aca3eeb..d3e74669bcb0 100644
--- a/odk/examples/DevelopersGuide/Forms/KeyGenerator.java
+++ b/odk/examples/DevelopersGuide/Forms/KeyGenerator.java
@@ -64,19 +64,19 @@ class UniqueColumnValue
         if ( CommandType.COMMAND == aCommandType.intValue() )
         {
             // get the connection from the form
-            XConnection xFormConn = (XConnection)UnoRuntime.queryInterface( XConnection.class,
+            XConnection xFormConn = UnoRuntime.queryInterface( XConnection.class,
                 xForm.getPropertyValue( "ActiveConnection" ) );
             // and let it create a composer for us
             XSQLQueryComposerFactory xComposerFac =
-                (XSQLQueryComposerFactory)UnoRuntime.queryInterface(
-                    XSQLQueryComposerFactory.class, xFormConn );
+                UnoRuntime.queryInterface(
+                XSQLQueryComposerFactory.class, xFormConn );
             XSQLQueryComposer xComposer = xComposerFac.createQueryComposer( );
 
             // let this composer analyze the command
             xComposer.setQuery( sCommand );
 
             // and ask it for the table(s)
-            XTablesSupplier xSuppTables = (XTablesSupplier)UnoRuntime.queryInterface(
+            XTablesSupplier xSuppTables = UnoRuntime.queryInterface(
                 XTablesSupplier.class, xComposer );
             XNameAccess xTables = xSuppTables.getTables();
 
@@ -126,7 +126,7 @@ class UniqueColumnValue
     protected int generatePrimaryKey( XPropertySet xForm, String sFieldName ) throws com.sun.star.uno.Exception
     {
         // get the current connection of the form
-        XConnection xConn = (XConnection)UnoRuntime.queryInterface(
+        XConnection xConn = UnoRuntime.queryInterface(
             XConnection.class, xForm.getPropertyValue( "ActiveConnection" ) );
         // let it create a new statement
         XStatement xStatement = xConn.createStatement();
@@ -141,7 +141,7 @@ class UniqueColumnValue
         xResults.next( );
 
         // get the value
-        XRow xRow = (XRow)UnoRuntime.queryInterface( XRow.class, xResults );
+        XRow xRow = UnoRuntime.queryInterface( XRow.class, xResults );
         int nFreeValue = xRow.getInt( 1 );
 
         // dispose the temporary objects
@@ -165,10 +165,10 @@ class UniqueColumnValue
         if ( ResultSetConcurrency.READ_ONLY != aConcurrency.intValue() )
         {
             // get the column object
-            XColumnsSupplier xSuppCols = (XColumnsSupplier)UnoRuntime.queryInterface(
+            XColumnsSupplier xSuppCols = UnoRuntime.queryInterface(
                 XColumnsSupplier.class, xForm );
             XNameAccess xCols = xSuppCols.getColumns();
-            XColumnUpdate xCol = (XColumnUpdate)UnoRuntime.queryInterface(
+            XColumnUpdate xCol = UnoRuntime.queryInterface(
                 XColumnUpdate.class, xCols.getByName( sFieldName ) );
 
             xCol.updateInt( generatePrimaryKey( xForm, sFieldName ) );
@@ -204,7 +204,7 @@ class KeyGeneratorForReset extends UniqueColumnValue implements XResetListener
     */
     public void defaultNewRecordFocus( XPropertySet xForm ) throws com.sun.star.uno.Exception
     {
-        XIndexAccess xFormAsContainer = (XIndexAccess)UnoRuntime.queryInterface(
+        XIndexAccess xFormAsContainer = UnoRuntime.queryInterface(
             XIndexAccess.class, xForm );
         for ( int i = 0; i<xFormAsContainer.getCount(); ++i )
         {
@@ -390,7 +390,7 @@ public class KeyGenerator
         XReset xFormReset = UNO.queryReset( m_xForm );
         xFormReset.removeResetListener( m_aResetKeyGenerator );
 
-        XRowSetApproveBroadcaster xFormBroadcaster = (XRowSetApproveBroadcaster)UnoRuntime.queryInterface(
+        XRowSetApproveBroadcaster xFormBroadcaster = UnoRuntime.queryInterface(
             XRowSetApproveBroadcaster.class, m_xForm );
         xFormBroadcaster.removeRowSetApproveListener( m_aUpdateKeyGenerator );
 
@@ -405,7 +405,7 @@ public class KeyGenerator
         // for resets
         XReset xFormReset = UNO.queryReset( m_xForm );
         // for approving actions
-        XRowSetApproveBroadcaster xFormBroadcaster = (XRowSetApproveBroadcaster)UnoRuntime.queryInterface(
+        XRowSetApproveBroadcaster xFormBroadcaster = UnoRuntime.queryInterface(
             XRowSetApproveBroadcaster.class, m_xForm );
 
         if ( bGenerateOnReset )
diff --git a/odk/examples/DevelopersGuide/Forms/RowSet.java b/odk/examples/DevelopersGuide/Forms/RowSet.java
index acd56f96abff..b5338810aef2 100644
--- a/odk/examples/DevelopersGuide/Forms/RowSet.java
+++ b/odk/examples/DevelopersGuide/Forms/RowSet.java
@@ -45,14 +45,14 @@ public class RowSet implements XRowSet, XRow
     {
         try
         {
-            m_rowSetProps = (XPropertySet)UnoRuntime.queryInterface(
+            m_rowSetProps = UnoRuntime.queryInterface(
                 XPropertySet.class, _context.getServiceManager().createInstanceWithContext( "com.sun.star.sdb.RowSet", _context ) );
             m_rowSetProps.setPropertyValue( "DataSourceName", _dataSource );
             m_rowSetProps.setPropertyValue( "CommandType", new Integer( _commandType ) );
             m_rowSetProps.setPropertyValue( "Command", _command );
 
-            m_rowSet = (XRowSet)UnoRuntime.queryInterface( XRowSet.class, m_rowSetProps );
-            m_row = (XRow)UnoRuntime.queryInterface( XRow.class, m_rowSetProps );
+            m_rowSet = UnoRuntime.queryInterface( XRowSet.class, m_rowSetProps );
+            m_row = UnoRuntime.queryInterface( XRow.class, m_rowSetProps );
         }
         catch ( Exception e )
         {
@@ -64,9 +64,9 @@ public class RowSet implements XRowSet, XRow
     // misc
     public int getColumnCount()
     {
-        XColumnsSupplier suppCols = (XColumnsSupplier)UnoRuntime.queryInterface(
+        XColumnsSupplier suppCols = UnoRuntime.queryInterface(
             XColumnsSupplier.class, m_rowSet );
-        XIndexAccess columns = (XIndexAccess)UnoRuntime.queryInterface(
+        XIndexAccess columns = UnoRuntime.queryInterface(
             XIndexAccess.class, suppCols.getColumns() );
         return columns.getCount();
     }
diff --git a/odk/examples/DevelopersGuide/Forms/SalesFilter.java b/odk/examples/DevelopersGuide/Forms/SalesFilter.java
index 9fc561759633..df7e96aa2d64 100644
--- a/odk/examples/DevelopersGuide/Forms/SalesFilter.java
+++ b/odk/examples/DevelopersGuide/Forms/SalesFilter.java
@@ -433,7 +433,7 @@ class SalesFilter implements XActionListener, XPropertyChangeListener, XResetLis
             m_xSalesForm.setPropertyValue( "ApplyFilter", new Boolean( true ) );
 
             // and reload the form
-            XLoadable xLoad = (XLoadable)UnoRuntime.queryInterface(
+            XLoadable xLoad = UnoRuntime.queryInterface(
                 XLoadable.class, m_xSalesForm );
             xLoad.reload();
 
diff --git a/odk/examples/DevelopersGuide/Forms/SingleControlValidation.java b/odk/examples/DevelopersGuide/Forms/SingleControlValidation.java
index 50b59640fae3..c54283470963 100644
--- a/odk/examples/DevelopersGuide/Forms/SingleControlValidation.java
+++ b/odk/examples/DevelopersGuide/Forms/SingleControlValidation.java
@@ -96,7 +96,7 @@ public class SingleControlValidation implements XFormComponentValidityListener
                 if ( controls[ i ].getPropertySetInfo().hasPropertyByName( "Border" ) )
                     controls[ i ].setPropertyValue( "Border", new Short( (short)2 ) );
 
-                XValidatableFormComponent xComp = (XValidatableFormComponent)UnoRuntime.queryInterface( XValidatableFormComponent.class,
+                XValidatableFormComponent xComp = UnoRuntime.queryInterface( XValidatableFormComponent.class,
                     controls[ i ] );
                 xComp.addFormComponentValidityListener( this );
             }
@@ -118,7 +118,7 @@ public class SingleControlValidation implements XFormComponentValidityListener
             m_explanationField = m_formLayer.createControlAndShape( "FixedText", columnPos, controlPos, 70, 4, null );
             m_explanationField.setPropertyValue( "Label", new String( "" ) );
 
-            XValidatable xValidatable = (XValidatable)UnoRuntime.queryInterface( XValidatable.class, m_inputField );
+            XValidatable xValidatable = UnoRuntime.queryInterface( XValidatable.class, m_inputField );
             xValidatable.setValidator( m_validator );
         }
         catch( java.lang.Exception e  )
@@ -144,7 +144,7 @@ public class SingleControlValidation implements XFormComponentValidityListener
         {
             if ( m_inputField.equals( eventObject.Source ) )
             {
-                XValidatableFormComponent xComp = (XValidatableFormComponent)UnoRuntime.queryInterface( XValidatableFormComponent.class,
+                XValidatableFormComponent xComp = UnoRuntime.queryInterface( XValidatableFormComponent.class,
                     eventObject.Source );
                 // the current value
                 Object value = xComp.getCurrentValue();
diff --git a/odk/examples/DevelopersGuide/Forms/SpreadsheetDocument.java b/odk/examples/DevelopersGuide/Forms/SpreadsheetDocument.java
index c722bf36a894..1016f49ca970 100644
--- a/odk/examples/DevelopersGuide/Forms/SpreadsheetDocument.java
+++ b/odk/examples/DevelopersGuide/Forms/SpreadsheetDocument.java
@@ -40,13 +40,13 @@ public class SpreadsheetDocument extends DocumentHelper
 
     public XCellRange getSheet( int index ) throws com.sun.star.uno.Exception
     {
-        XSpreadsheetDocument spreadsheetDoc = (XSpreadsheetDocument)UnoRuntime.queryInterface( XSpreadsheetDocument.class,
+        XSpreadsheetDocument spreadsheetDoc = UnoRuntime.queryInterface( XSpreadsheetDocument.class,
             m_documentComponent
         );
-        XIndexAccess sheets = (XIndexAccess)UnoRuntime.queryInterface( XIndexAccess.class,
+        XIndexAccess sheets = UnoRuntime.queryInterface( XIndexAccess.class,
             spreadsheetDoc.getSheets()
         );
-        return (XCellRange)UnoRuntime.queryInterface( XCellRange.class,
+        return UnoRuntime.queryInterface( XCellRange.class,
             sheets.getByIndex( index )
         );
     }
@@ -74,7 +74,7 @@ public class SpreadsheetDocument extends DocumentHelper
         {
             CellAddress address = new CellAddress( sheet, column, row );
             Object[] initParam = new Object[] { new NamedValue( "BoundCell", address ) };
-            cellBinding = (com.sun.star.form.binding.XValueBinding)UnoRuntime.queryInterface(
+            cellBinding = UnoRuntime.queryInterface(
                 com.sun.star.form.binding.XValueBinding.class,
                 createInstanceWithArguments(
                     supportIntegerValues ? "com.sun.star.table.ListPositionCellBinding"
@@ -102,7 +102,7 @@ public class SpreadsheetDocument extends DocumentHelper
             CellRangeAddress rangeAddress = new CellRangeAddress( sheet, column,
                 topRow, column, bottomRow );
             Object[] initParam = new Object[] { new NamedValue( "CellRange", rangeAddress ) };
-            entrySource = (com.sun.star.form.binding.XListEntrySource)UnoRuntime.queryInterface(
+            entrySource = UnoRuntime.queryInterface(
                 com.sun.star.form.binding.XListEntrySource.class,
                 createInstanceWithArguments(
                     "com.sun.star.table.CellRangeListSource", initParam ) );
diff --git a/odk/examples/DevelopersGuide/Forms/SpreadsheetValueBinding.java b/odk/examples/DevelopersGuide/Forms/SpreadsheetValueBinding.java
index 5b7c1c1b00e3..09233addc5dd 100644
--- a/odk/examples/DevelopersGuide/Forms/SpreadsheetValueBinding.java
+++ b/odk/examples/DevelopersGuide/Forms/SpreadsheetValueBinding.java
@@ -74,7 +74,7 @@ public class SpreadsheetValueBinding extends DocumentBasedExample
             listSourceSheet, column, topRow, bottomRow );
 
         // bind it to the list box
-        XListEntrySink consumer = (XListEntrySink)UnoRuntime.queryInterface(
+        XListEntrySink consumer = UnoRuntime.queryInterface(
             XListEntrySink.class, listBox );
         consumer.setListEntrySource( entrySource );
 
@@ -87,7 +87,7 @@ public class SpreadsheetValueBinding extends DocumentBasedExample
         String[] listContent = new String[] { "first", "second", "third", "forth", "fivth" };
         for ( short row = topRow; row <= bottomRow; ++row )
         {
-            XTextRange cellText = (XTextRange)UnoRuntime.queryInterface(
+            XTextRange cellText = UnoRuntime.queryInterface(
                 XTextRange.class, exchangeSheet.getCellByPosition( column, row ) );
             cellText.setString( listContent[row] );
         }
@@ -104,7 +104,7 @@ public class SpreadsheetValueBinding extends DocumentBasedExample
     /* ------------------------------------------------------------------ */
     private void implBind( XPropertySet controlModel, XValueBinding binding ) throws com.sun.star.form.binding.IncompatibleTypesException
     {
-        XBindableValue bindable = (XBindableValue)UnoRuntime.queryInterface(
+        XBindableValue bindable = UnoRuntime.queryInterface(
             XBindableValue.class, controlModel
         );
         bindable.setValueBinding( binding );
diff --git a/odk/examples/DevelopersGuide/Forms/SpreadsheetView.java b/odk/examples/DevelopersGuide/Forms/SpreadsheetView.java
index 679c520f92c3..21dfb947d048 100644
--- a/odk/examples/DevelopersGuide/Forms/SpreadsheetView.java
+++ b/odk/examples/DevelopersGuide/Forms/SpreadsheetView.java
@@ -43,16 +43,16 @@ public class SpreadsheetView extends DocumentViewHelper
         try
         {
             // get the sheet to activate
-            XSpreadsheetDocument doc = (XSpreadsheetDocument)UnoRuntime.queryInterface(
+            XSpreadsheetDocument doc = UnoRuntime.queryInterface(
                 XSpreadsheetDocument.class, getDocument().getDocument() );
-            XIndexAccess sheets = (XIndexAccess)UnoRuntime.queryInterface(
+            XIndexAccess sheets = UnoRuntime.queryInterface(
                 XIndexAccess.class, doc.getSheets() );
 
-            XSpreadsheet sheet = (XSpreadsheet)UnoRuntime.queryInterface(
+            XSpreadsheet sheet = UnoRuntime.queryInterface(
                 XSpreadsheet.class, sheets.getByIndex( sheetIndex ) );
 
             // activate
-            XSpreadsheetView view = (XSpreadsheetView)UnoRuntime.queryInterface(
+            XSpreadsheetView view = UnoRuntime.queryInterface(
                 XSpreadsheetView.class, getController() );
             view.setActiveSheet( sheet );
         }
diff --git a/odk/examples/DevelopersGuide/Forms/UNO.java b/odk/examples/DevelopersGuide/Forms/UNO.java
index 39540613d478..109618ca2b7d 100644
--- a/odk/examples/DevelopersGuide/Forms/UNO.java
+++ b/odk/examples/DevelopersGuide/Forms/UNO.java
@@ -45,37 +45,37 @@ public class UNO
 {
     public static XPropertySet queryPropertySet( Object aObject )
     {
-        return (XPropertySet)UnoRuntime.queryInterface( XPropertySet.class, aObject );
+        return UnoRuntime.queryInterface( XPropertySet.class, aObject );
     }
     public static XControlModel queryControlModel( Object aObject )
     {
-        return (XControlModel)UnoRuntime.queryInterface( XControlModel.class, aObject );
+        return UnoRuntime.queryInterface( XControlModel.class, aObject );
     }
     public static XIndexContainer queryIndexContainer( Object aObject )
     {
-        return (XIndexContainer)UnoRuntime.queryInterface( XIndexContainer.class, aObject );
+        return UnoRuntime.queryInterface( XIndexContainer.class, aObject );
     }
     public static XReset queryReset( Object aObject )
     {
-        return (XReset)UnoRuntime.queryInterface( XReset.class, aObject );
+        return UnoRuntime.queryInterface( XReset.class, aObject );
     }
     public static XServiceInfo queryServiceInfo( Object aObject )
     {
-        return (XServiceInfo)UnoRuntime.queryInterface( XServiceInfo.class, aObject );
+        return UnoRuntime.queryInterface( XServiceInfo.class, aObject );
     }
     public static XColumn queryColumn( Object aObject )
     {
-        return (XColumn)UnoRuntime.queryInterface( XColumn.class, aObject );
+        return UnoRuntime.queryInterface( XColumn.class, aObject );
     }
 
     public static XComponent queryComponent( Object aObject )
     {
-        return (XComponent)UnoRuntime.queryInterface( XComponent.class, aObject );
+        return UnoRuntime.queryInterface( XComponent.class, aObject );
     }
 
     public static XTablesSupplier queryTablesSupplier( Object aObject )
     {
-        return (XTablesSupplier)UnoRuntime.queryInterface( XTablesSupplier.class, aObject );
+        return UnoRuntime.queryInterface( XTablesSupplier.class, aObject );
     }
 
 /*  replace Foo with the identifier of your choice.
diff --git a/odk/examples/DevelopersGuide/Forms/ValueBinding.java b/odk/examples/DevelopersGuide/Forms/ValueBinding.java
index ffb7555eaf5f..3cf649cce543 100644
--- a/odk/examples/DevelopersGuide/Forms/ValueBinding.java
+++ b/odk/examples/DevelopersGuide/Forms/ValueBinding.java
@@ -41,7 +41,7 @@ public class ValueBinding extends DocumentBasedExample
 
         // insert a table with exactly one cell. The content of this table will be synced with
         // the content of a form control
-        XTextDocument textDoc = (XTextDocument)UnoRuntime.queryInterface( XTextDocument.class,  m_document.getDocument() );
+        XTextDocument textDoc = UnoRuntime.queryInterface( XTextDocument.class,  m_document.getDocument() );
         XText documentText = textDoc.getText();
         XTextCursor textCursor = documentText.createTextCursor();
         documentText.insertString( textCursor, "Below, there's a table cell, and a text field. ", false );
@@ -49,7 +49,7 @@ public class ValueBinding extends DocumentBasedExample
         documentText.insertString( textCursor, "That means that anything you insert into the table cell is reflected in the ", false );
         documentText.insertString( textCursor, "text field, and vice versa.\n", false );
 
-        XTextTable table = (XTextTable)UnoRuntime.queryInterface( XTextTable.class,
+        XTextTable table = UnoRuntime.queryInterface( XTextTable.class,
             m_document.createInstance( "com.sun.star.text.TextTable" )
         );
         table.initialize( 1, 1 );
@@ -61,7 +61,7 @@ public class ValueBinding extends DocumentBasedExample
         // create a value binding for the first cell of the table
         XValueBinding cellBinding = new TableCellTextBinding( table.getCellByName( "A1" ) );
         // and bind it to the control
-        XBindableValue bindable = (XBindableValue)UnoRuntime.queryInterface(
+        XBindableValue bindable = UnoRuntime.queryInterface(
             XBindableValue.class, textControl
         );
         bindable.setValueBinding( cellBinding );