catupgrd.sql "hangs" in out-of-place upgrade from 11.2.0.2 to 11.2.0.4

Linux x86-64

Out-of-place upgrade from 11.2.0.2 to 11.2.0.4.0 (p13390677)

The 11.2.0.4.0 upgrade script catupgrd.sql gets this far and hangs:

SQL>
SQL> -- Load all the Java classes
SQL> begin if initjvmaux.startstep('CREATE_JAVA_SYSTEM') then
  2    initjvmaux.rollbacksetup;
  3    commit;
  4    initjvmaux.rollbackset;
  5    initjvmaux.exec('create or replace java system');
  6    commit;
  7    initjvmaux.rollbackcleanup;
  8    initjvmaux.endstep;
  9  end if; end;
 10  /

It may be working through it, but if so it is EXTREMELY slow.  Question:  Can I simply re-run it, or do I have to start from scratch?