This error is received in 11g release, but fixed in 12c release :

ORA-29532: Java call terminated by uncaught Java exception: java.lang.RuntimeException
ORA-06512: at “MDSYS.SDO_UTIL”, line 196

is there any workaround for this problem in 11g …. YES:

1. Drop the spatial index on the geometry table
2. Run the update
3. Rebuild the spatial index