code: @Override
      public void flush()
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())
              Tr.debug(tc, "em.flush();\n" + toString());
  
          getEMInvocationInfo(true).flush();
      }
docs: (non-Javadoc)
  
  @see javax.persistence.EntityManager#flush()