coverity#707196 Uncaught exception

Change-Id: I4f42040c7e12507365f12d09f80d3641b4d5ca02

starmath/source/smdetect.cxx

@@ -66,8 +66,12 @@ OUString SAL_CALL SmFilterDetect::detect( Sequence< PropertyValue >& lDescriptor
     if ( pInStrm->remainingSize() == 0 )
         return OUString();
 
+    bool bStorageOk = false;
+    try
+    {
         SotStorageRef aStorage = new SotStorage( pInStrm, false );
-    if ( !aStorage->GetError() )
+        bStorageOk = !aStorage->GetError();
+        if (bStorageOk)
         {
             if ( aStorage->IsStream("Equation Native") )
             {
@@ -76,7 +80,13 @@ OUString SAL_CALL SmFilterDetect::detect( Sequence< PropertyValue >& lDescriptor
                     return OUString("math_MathType_3x");
             }
         }
-    else
+    }
+    catch (const css::ucb::ContentCreationException &e)
+    {
+        SAL_WARN("starmath", "SmFilterDetect::detect caught " << e.Message);
+    }
+
+    if (!bStorageOk)
     {
         // 200 should be enough for the XML
         // version, encoding and !DOCTYPE