At least some of the things corrected, also (c) myself.

AFAIK java_uno_accessbridge.jar is only required on WNT.
Also remove the duplicate old definition of gid_File_Jar_Accessbridge
that was effectively disabled by 6fdde9ac.

Remove pointless SwPosition that triggers the assertion when
loading bugdoc from i#87910 from wwSectionManager::InsertSegments.

For Android, they could have been set earlier in the configure script
even. We do want to use ccache also for Android cross-compilation.

Guard access to first polygon point.

And cleaned up the code a bit.  The new code should be much more
robust.

Data layout dimension can be anywhere in the row/column fields.  Use the
appropriate boolean property to determine if the field is data layout.

The Excel import filter code assumed that the data layout field be
always the last row field, which is totally wrong.  The data layout
field can be at any column/row field position in fact.

Remove methods getDataBuf(int), getParamLength(int), getPrecision(int).