Java Application not returning transaction

Hi,

i have a Java Application that needs to be recorded. so far the loading of the Java Application is being captured by loadrunner but when you perform the business process (login etc) all i get is just transaction headers

    lr.start_transaction("Login");

    lr.end_transaction("Login",lr.AUTO);

    lr.start_transaction("search");

    lr.end_transaction("search",lr.AUTO);

is there anything am i missing?