Null Value returned into Hashtable from Vector (after 1.5 compilation )

Question

Sorry i posted the Question with a misleading heading into another thread .
Hi , in the given peice of Code , date1 is a vector while date2 is a hashtable .
I am storing the date from the vector in a hashtable .
The code works fine for java 1.4 but Null value gets stored after compiling in 1.5.
There is no error during compilation .
Hashtable date2 = (Hashtable) date1.elementAt(0);
cat.debug("date2"+date2.get("TO_CHAR(TO_DATE(TO_CHAR(RES_DT,DD-MON-YYYY)),DD-MON-YYYY)"));"TO_CHAR(TO_DATE(TO_CHAR(RES_DT,DD-MON-YYYY)),DD-MON-YYYY)") is the key , there is no error in that .
cat.debug is log4j function used to write log to an text file.
From searchin the net i got the i would have to typecast (not sure if am using the right technical term ) .
protected Hashtable<Object,Object> lNVPair = new Hashtable<Object,Object>();
    protected Vector<Object> lNVKeys = new Vector<Object>();But how am i suppose to use it in the above state where with declaration i am assigning value at same time ?..
Hashtable<Object,Object> date2 = (Hashtable<Object,Object>) date1.elementAt(0);

Answer 1

Here is more details about date1 :
Vector date1 = mDao.getDate(lcrnno,ltxntype,lbranchCd);Value of date1 is filled by calling a function which in turns queries the database .
Details about the function are below .
public Vector getDate(String pcrnno,String ptxntype,String br_cd)//throws SQLException
          Vector lResult=null;
          ResultSet lresult = null;
   try {
                                          Hashtable linner=new Hashtable();
                     lResult=new Vector();
          //String lstrquery declared  containing the query to be executed .
         mPstmt = mConn.prepareStatement(lstrquery);
       lresult = mPstmt.executeQuery();
     ResultSetMetaData lrsmd=null;
    lrsmd=lresult.getMetaData();
   int lcolCount=lrsmd.getColumnCount();
  cat.debug("Number of fields:"+lcolCount);
while(lresult.next())
          linner=new Hashtable();
       for(int i=1;i<=lcolCount;i++) {
               String lkey=lrsmd.getColumnName(i); //column name to be used as key
               String lvalue=lresult.getObject(i).toString(); //value
                  linner.put(lkey,lvalue); //populating the hashtable
      }//end of for
                         lResult.add(linner); //adding to vector
  }//end of whileNote I have not added the part of code where query string created and parameters passed .
Hope that should be enough details ...