JdbcClient fix: -  NullPointer exception fixed when a null-value in the data existed -  columns in results were printed to System.out, not to out, whoops! -  XML output now produces results like:
JdbcClient fix:
-  NullPointer exception fixed when a null-value in the data existed
-  columns in results were printed to System.out, not to out, whoops!
-  XML output now produces results like:

<table name="sys.test">
  <row>
    <id>1</id>
    <val>test&amp;</val>
  </row>
  <row>
    <id>2</id>
  </row>
  <row>
    <id>3</id>
    <val />
  </row>
  <row>
    <id>4</id>
    <val> </val>
  </row>
</table>

   o null-fields are not printed at all (it's a tree right? --- so if
     a field is null, it does not exist, so does the tag not exist
     either (null should match xsd -> todo))
   o empty fields are short terminated <tag />
   o the rest is just displayed as is

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb