coverity#706504 Uncaught exception

Change-Id: I727779317672fe58c440aee76762d0a9ae28d8ca

editeng/source/accessibility/AccessibleEditableTextPara.cxx

@@ -2447,7 +2447,7 @@ namespace accessibility
     // XAccessibleTextAttributes
     uno::Sequence< beans::PropertyValue > SAL_CALL AccessibleEditableTextPara::getDefaultAttributes(
             const uno::Sequence< OUString >& rRequestedAttributes )
-        throw (uno::RuntimeException, std::exception)
+        throw (beans::UnknownPropertyException, uno::RuntimeException, std::exception)
     {
         SolarMutexGuard aGuard;
 

include/editeng/AccessibleEditableTextPara.hxx

@@ -147,7 +147,7 @@ namespace accessibility
         virtual sal_Bool SAL_CALL setText( const OUString& sText ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 
         // XAccessibleTextAttributes
-        virtual ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > SAL_CALL getDefaultAttributes( const ::com::sun::star::uno::Sequence< OUString >& RequestedAttributes ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
+        virtual ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > SAL_CALL getDefaultAttributes( const ::com::sun::star::uno::Sequence< OUString >& RequestedAttributes ) throw (::com::sun::star::beans::UnknownPropertyException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
         virtual ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > SAL_CALL getRunAttributes( ::sal_Int32 Index, const ::com::sun::star::uno::Sequence< OUString >& RequestedAttributes ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 
         // XAccessibleHypertext

offapi/com/sun/star/accessibility/XAccessibleTextAttributes.idl

@@ -22,6 +22,7 @@
 
 #include <com/sun/star/lang/IndexOutOfBoundsException.idl>
 #include <com/sun/star/beans/PropertyValue.idl>
+#include <com/sun/star/beans/UnknownPropertyException.idl>
 
 module com { module sun { module star { module accessibility {
 
@@ -52,7 +53,8 @@ interface XAccessibleTextAttributes
             object.
     */
     sequence<::com::sun::star::beans::PropertyValue>
-        getDefaultAttributes ( [in] sequence<string> RequestedAttributes );
+        getDefaultAttributes ( [in] sequence<string> RequestedAttributes )
+        raises ( ::com::sun::star::beans::UnknownPropertyException );
 
     /** Get the run attribute set for the specified position.