Why does Simulation hang in following code

UVM
,
2

In reply to ABD_91:

You have recursive Consumer object construction. Use the factory to create the Consumer_child

class Consumer extends uvm_component ;
`uvm_component_utils(Consumer)
 
  uvm_blocking_put_imp #(trans,Consumer ) put_imp ;

 `COMP_NEW
 
  function void build_phase ( uvm_phase phase ) ;
    put_imp = new("put_imp",this);
  endfunction
 
  virtual task put ( trans t );
  endtask  
endclass
 
class env extends uvm_component ;
 
 `uvm_component_utils(env)
 
 `COMP_NEW
 
  Consumer  cons ;
  Producer  prod ;
 
  function void build_phase ( uvm_phase phase ) ;
     cons   = Consumer::type_id::create("cons",this);
     prod   = new("prod",this);
  endfunction
 
 function void connect_phase ( uvm_phase phase ) ;
    prod.put_port.connect(cons.put_imp) ;
 endfunction 
endclass 
initial begin
  Consumer::type_id::set_type_override(Consumer_child::type_id::get());
  run_test("env") ;
 
end
endmodule