coverity#1326237 Dereference after null check

Change-Id: Iac84adff096c5b847b2a63ac57ddf5b2f5e34e11
diff --git a/xmerge/source/xmerge/java/org/openoffice/xmerge/converter/xml/sxc/SxcDocumentDeserializer.java b/xmerge/source/xmerge/java/org/openoffice/xmerge/converter/xml/sxc/SxcDocumentDeserializer.java
index bfd7fb3..1523b908 100644
--- a/xmerge/source/xmerge/java/org/openoffice/xmerge/converter/xml/sxc/SxcDocumentDeserializer.java
+++ b/xmerge/source/xmerge/java/org/openoffice/xmerge/converter/xml/sxc/SxcDocumentDeserializer.java
@@ -490,11 +490,16 @@ public abstract class SxcDocumentDeserializer implements OfficeConstants,
                Debug.log(Debug.TRACE, "<tr>");
            }

            if (rowElement == null) {
                //utterly busted
                break;
            }

            // Get the column number of the current cell
            int newCol = decoder.getColNumber();

            // Check to see if some columns were skipped
            if (newCol != col && rowElement != null) {
            if (newCol != col) {

                // How many columns have we skipped?
                int numColsSkipped = newCol - col;