Is my statement correct???

Question

Im having a problem with regards to data object. I have a queuer program that sends data to program1. the program1 has a listener class that parse the data from queuer and assign it to a designated variables using StringTokenizer. (Theres no problem with listener class.)
Another class is saveBatch class that save and send the data back to the queuer. In some part of savebatch class, the data that supposed to be in variable A is lost. Since I'ts not my program and im trying to fix the bug but the coding is very very confusing(especially the variable names)
What i wanna do right now is to have a condition that will catch the variable A when it is null. But if the variable A != null it will just go on thru the usual stuff. I need an opinion if my logic statement is correct. since i did not use the if then else statement. Correction and critics would be much appreciated.
public boolean saveBatch(int state){
this.state = state;
boolean allow = false;
allow = allowSave(); //it validates all requirement needed b4 saving.
if (allow){
try{ 
if (transo == null)
throw new EmptyStackException();
} catch(Exception e){
e.printStackTrace();
sm = new SendEmail(); // this will send the exception to my email.
sm.preSend(...........); // i did not complete this. coz its 100%workn.
return false;
int intSave;
String msgSave = ""; // strings that hold and to be send to queuer
if (state == 0 || state == 2){
...... this is the usual stuff.
}

Answer 1

Additional info:
In some part of savebatch class, the data that supposed to be in variable A is lost. It happens not very frequent that why its hard to catch.