Am getting this Error the below error, as of my knowledge as per this error message am going to access an empty object.

Error-[NOA] Null object access
generator.sv, 23
The object at dereference depth 1 is being used before it was
constructed/allocated.
Please make sure that the object is allocated before using it.

class generator;

transaction trans;

mailbox gen2driv;

// event ended;

function new(mailbox gen2driv);
this.gen2driv = gen2driv;
endfunction

task main();
repeat(4) begin
trans = new();
trans.randomize();
if(!trans.randomize()) $display(“generator ransomize failed”);

 trans.display("[generator]");

gen2driv.put(trans);

// -> ended;
end
endtask

endclass

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