java local variable unavailable -

i'm getting following error eclipse debugger: local variable unavailable. tried trim code as possible. problem pretty simple, have use divisiveui updatelog() method, divise class, using variables cluster class. divise has list containing of clusters. divisive , divisiveui has reference each other. how can access variables: sumdistance, avgdistance divisive class? tried writing method in divisive class, still couldn't access needed variables :| thank you!

error crops @ log.append(text+"\n"); source not found.

divisive:

   package clusters;          import java.util.linkedlist;          public class divisive implements runnable         {             linkedlist<record> maintable;             linkedlist<cluster> clusterlist;             int meassuretype;         divisiveui parent;         int clustercount;          divisive(linkedlist<record> maintable, divisiveui parent)         {             this.parent=parent;             this.maintable=new linkedlist<record>(maintable);             setmeassuretype(0);         }      } 

divisiveui:

 package clusters;    @suppresswarnings("serial") public class divisiveui extends jpanel implements runnable{      clusteringselection parent;     divisive divisive;     jtextfield clustercount;     jtextarea log;      public void updatelog(string text)     {         log.append(text+"\n");         log.setcaretposition(log.getdocument().getlength());     } } 

cluster:

 package clusters;   public class cluster  {     linkedlist<record> table;     linkedlist<matrixrow> matrix;      linkedlist<double> center;     double sumdistance;     double avgdistance;      int meassuretype; } 

if debugger can't acces local variable, means code hasn't been compiled option adding local variable debugging information bytecode.

check how you're compiling classes, , make sure information in compiled classes. if javac used, add -g option ad debugging information.