How to pass the object of one class to the another class?

Question

Hello All,
My problem is i am sending the object of serializable class from one class to another class but when i collection this class into another it is transfering null to that side even i filled that object into the class before transfer and the point is class is serializable
code is below like
one class contain the code where i collecting the object by calling this function of another class:-
class
lastindex and initIndex is starting and ending range
SentenceStatusImpl tempSS[] = new SentenceStatusImpl[lastIndex-initIndex ];
tempSS[i++] = engineLocal.CallParser(SS[initIndex],g_strUserName,g_strlanguage,g_strDomain);
another class containg code where we transfering the object:-
class
public SentenceStatusImpl CallParser(SentenceStatusImpl senStatus, String strUserName, String strLanguage, String strDomain)
*//here some code in try block*
finally
System.+out+.println("inside finally...........block......"+strfinaloutput.length);
senStatus.setOutputSen(strfinaloutput);//strfinaloutput is stringbuffer array containg sentence
fillSynonymMap(senStatus);
senStatus.setTranslateStatus(*true*);
return senStatus;
Class of which object is serialized name sentenceStatusimpl class:-
public class SentenceStatusImpl implements Serializable
///Added by pavan on 10/06/2008
int strSourceSenNo;
String strSourceSen = new String();
String strTargetSen = new String();
StringBuffer[] stroutputSen = null;
HashMap senHashMap = new HashMap();
HashMap dfaMarkedMap = new HashMap();
boolean bTargetStatus = false;
public SentenceStatusImpl(){
public void setOutputSen(StringBuffer[] outputSen){
stroutputSen = outputSen;
public StringBuffer[] getOutputSen(){
return stroutputSen;
public void setTranslateStatus(*boolean* TargetStatus){
bTargetStatus = TargetStatus;
}//class

Answer 1

ok,
in class one
we are calling one function (name callParser(object of sentenceStatusImpl class,.....argument.) it return object of sentenceStatusImple class containg some extra information ) and we collecting that object into same type of object.
and that sentenceStatusImple classs implements by Serializable
so it some cases it is returning null
if you think it is not proper serialization is please replay me and suggest proper serialization so that my work is to be done properly (without NULL)
hope you understand my problem