Help needed in running the RMI application with multiple clients

Question

Hi
I have my RMI application with one server and 6 clients. I keep all the server and client programs in the same directory. When i run the clients, the first 2 clients work properly but when the third or the fourth client starts, it works normally in getting the data and after a while it crashes. If teh third crashes the 4th works and if the 4th crashes the 3rd, 4th and 5th works ...randomly atleast one or 2 clients crash always.
following is the error message generated for a client named controller:
[ code ]
Exception in thread "main" java.lang.NullPointerException
at PostOfficeImpl.isinputAvail(PostOfficeImpl.Java:315)
at PostOfficeImpl_Skel.dispatch(Unknown Source)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:375)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:240)
at sun,rmi.transport.Transport$1.run(Transport.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at sun,rmi.transport.Transport.serviceCall(Transport.java:149)
at sun,rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at sun,rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:595)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:343)
at PostOfficeImpl_Stub.isinputAvail(Unknown Source)
at CONTROLLER.main(CONTROLLER.java:167)
my ser ver program is as follows:
class PostOfficeServer extends java.rmi.server.UnicastRemoteObject implements java.rmi.Remote {
// Instance of ourselves
public static String name;
private static PostOfficeServer rmi;
// public No-argument constructor
public PostOfficeServer() throws RemoteException {
     super();
public static void main(String[] args){
if(System.getSecurityManager() == null) {
     System.setSecurityManager(new RMISecurityManager());
try {
     new PostOfficeServer();
     PostOffice postOfficeserver = new PostOfficeImpl();
try {
     getIP ipAdd1 = new getIP();
     String ip1 = ipAdd1.getIP();
     name = "//" + ip1 + "/PostOffice";
catch (Exception e){
     System.out.println();
Naming.rebind(name, postOfficeserver);
System.out.println("RemoteServer bound");
System.out.println("initialise Data Structure");
postOfficeserver.initDatastructure();
System.out.println("initilised");
catch (java.rmi.RemoteException e) {
     System.out.println("Cannot create remote server object");
catch (java.net.MalformedURLException e) {
     System.out.println("Cannot look up server object");
System.out.println("Server started.");
System.out.println("Enter <CR> to end.");
try {
     int serve2end = System.in.read();
}catch (IOException ioException) {
System.exit(0);
//endoffilePlease advise as this is very urgent

Answer 1

Hi
the following is the code for PostOfficeImpl...its a long code but i include it so that I get your help please...
import java.io.*;
import java.net.*;
import java.lang.*;
import java.rmi.*;
import java.rmi.server.*;
import java.rmi.RemoteException;
import java.util.HashMap;
import java.util.*;
public class PostOfficeImpl extends java.rmi.server.UnicastRemoteObject implements PostOffice {
//Implementations must have an explicit constructor in order to declare the
//RemoteException exception
public PostOfficeImpl() throws java.rmi.RemoteException {
     super();
public static LinkedListImpl list = new LinkedListImpl();
public static oListImpl ovarList  = new oListImpl();
public static iListImpl ivarList =new iListImpl();
public static lipsList llfirst;
public static oList opchannel, ofirst, onext;
public static iList ipchannel, ichan, ifirst;
public static  String[] variNumber= new String[100];
public static String[] inoutChan, inChan, outChan,inVAR, invarLIST,outVAR, outvarLIST ;
public static String[][] driveMat;
DriverMatrix_mthds drive = new DriverMatrix_mthds();
private static  Boolean All_Vacant;
private static  Boolean tAll_Vacant;
public void sendAll_Vacant(Boolean All_Vacant) throws RemoteException {
     tAll_Vacant = All_Vacant;
public Boolean getAll_Vacant() throws RemoteException{
      return tAll_Vacant;
public  void initDatastructure() throws RemoteException{
ifirst = null;
ofirst=null;
int i=0, j=0, k=0, ind1=0, ind2=0;
try{/// initialise list
     drive = new DriverMatrix_mthds();
     drive.VarTypeArray();
     drive.nodeHeadVarType();
     String[] variablel = drive.Variablelist();
     drive.lipsvariablist();
     drive.NodeOrigin();
drive.nodeInput();
     drive.numOfnodes();
     drive.noOfVariables();
     drive.Assignlist();
     drive.novarType();
     drive.varNameType();
     drive.nodeNumName();
     drive.driverMat();
     String[][] lookupvar = drive.varNameType();
     //tempdrive = drive.driverMat();
     long leng1 = variablel.length;
     int varlistlength = (int) leng1;
     int counter;
     String s1="";
     String s2="";
     String s3 = "";
     String s4 = "";
     String s6 = "";
     int s5=0, c=0;
     while(variablel[k] !=null){
          k=k+1;
     int i1, j1;
     String  varname, varnumber;
     varnumber = "";
while(i<=variablel.length-1){
     if(variablel!=null){
     c=c+1;
     i=i+1;
try{
     ind1=0; ind2 = 0;i=0;
while(!(variablel[i].equals("end of file"))){
     s1 = variablel[i];
     i=i+1;
     s2 = variablel[i];
     i=i+1;
     System.out.println("     " + s1+"     "+s2);
while(!(variablel[i].equals("end of input variable"))){
     s4 = variablel[i];
     i1=0;
     Brkwhile:while(i1<=lookupvar.length-1){
     j1=1;
     if(lookupvar[i1][j1] != null){
     if(lookupvar[i1][j1].equals(s4)){
          s3 = lookupvar[i1][0];
          break Brkwhile;
     i1=i1+1;
//ifirst.varNum = varnumber;
s5 = 0;
s6 = null;
ifirst= new iList(s3,s4, s5, s6);
ivarList.add(ifirst);
System.out.println(s3+"     "+s4+"     "+s5+"     "+s6);
i=i+1;
i = i + 1;
System.out.println("input list finished ");
while(!(variablel[i].equals("end of output variable"))){
     s4 = variablel[i];
     i1=0;
     j1=1;
     Brkwhile:while(lookupvar[i1][j1] != null){
          if(lookupvar[i1][j1].equals(s4)){
          s3 = lookupvar[i1][0];
          break Brkwhile;
     i1=i1+1;
     s5 = 0;
     s6 = null;
     ofirst= new oList(s3,s4, s5, s6);
     ovarList.add(ofirst);
     System.out.println(s3+"     "+s4+"     "+s5+"     "+s6);
     i=i+1;
     llfirst = new lipsList(s1, s2, ivarList, ovarList);
     list.add(llfirst);
     System.out.println("output list finished ");
     i=i+1;
     catch (NullPointerException ne){
     catch (Exception d){}
public int isitOK(reqPacket sndNodetail)
     throws RemoteException{
     String nodnum = sndNodetail.srcNum;
     String varnum = sndNodetail.varNum;
     int status = 0;
     llfirst = list.getFirst();
     try{mainbegin:while (llfirst != null){
          if((llfirst.nodeNum).equals(nodnum)){
          ofirst = ovarList.getFirst();
          while(ofirst != null){
               if((ofirst.varNum).equals(varnum)){
               if(ofirst.varVal==null){
               status = 1;
               break mainbegin;
     ofirst = ofirst.next;
     llfirst = llfirst.next;
     catch (NullPointerException nl){}
     return status;
public int senData(dataPacket sendToRTS)
     throws RemoteException{
dataPacket datDetail = sendToRTS;
String nnum, vnum,typename, dval;
String dtype = "";
nnum = datDetail.nodeNum;
vnum = datDetail.varNum;
typename = datDetail.dataType;
dval = String.valueOf(datDetail.dataVal);
String [][] tempdrive, varnametype;
int status =0;
System.out.println("data received is from node " nnum " is "+ dval+"var num " +vnum);
status =0;
try{
//DriverMatrix_mthds drive = new DriverMatrix_mthds();
drive.VarTypeArray();
drive.Variablelist();
drive.NodeOrigin();
drive.nodeInput();
drive.numOfnodes();
drive.noOfVariables();
String[][] lookupvar = drive.novarType();
drive.varNameType();
drive.nodeNumName();
drive.driverMat();
tempdrive = drive.driverMat();
String varname="";
int i,j;
//with the recived var name get the var num
for(i=0; i<=lookupvar.length-1; i++){
     j=0;
     if(lookupvar[i][j] != null){
          if(lookupvar[i][j].equals(typename)){
               dtype = lookupvar[i][1];
     }//varname is moved to dtype n used for checking
     for(i=0; i<=tempdrive.length-1; i++){j=0;
     if (tempdrive[i][j] != null){
     if (tempdrive[i][0].equals(vnum)){
          if (tempdrive[i][1].equals(nnum)){
          if(tempdrive[i][2].equals(dtype)){
          status = 1;
     }//System.out.println("received data " vnum " "+ nnum +" " + dtype +" "+dval);// after checking status if the status is 1 then set the counter n olist// to no of times the value has to be ditributed
int Ccount =0;
//opchannel = llfirst.olist;
try{
     System.out.println("status"+status);
     if (status == 1){
          llfirst = list.getFirst();
     mainWhile: while (llfirst != null){
          if((llfirst.nodeNum).equals(nnum)){
               ofirst = ovarList.getFirst();
               while(ofirst != null){
               if((ofirst.varNum).equals(vnum)){
                    ofirst.varVal =dval;
                    //setting the counter for the varname
                    //check driver matrix fr the no of occurances
               for(i=0; i<=tempdrive.length-1; i++){
               j=0;
               if (tempdrive[i][j] != null){
                    if (tempdrive[i][0].equals(vnum)){
                    for(j= j+3;j<=tempdrive.length-1;j++){
                    if(tempdrive[i][j] != null){
                    if(tempdrive[i][j].equals("1")){
                    Ccount = Ccount + 1;
System.out.println("count"+Ccount);
ofirst.counter = Ccount;
ofirst.varNum = vnum;for(i=0; i<=lookupvar.length-1; i++){
for(j=0; j<=2; j++){
     if(lookupvar[i][j] != null){
     if(lookupvar[i][j].equals(vnum)){
          varname = lookupvar[i][1];
     ofirst.varName = varname;
     Ccount=0;
     break mainWhile;
     ofirst = ofirst.next;
     llfirst = llfirst.next;
     catch(NullPointerException s){}
/*use the vnum in the driver matrix and find out the nodes to which this variable
*has been sent as input , i mean destination nodes..
*find the node numbers ..knowing the node numbers parse through data structure
and set the input values to value and status 1./
llfirst = list.getFirst();
while(llfirst != null){
     ifirst = llfirst.ilist.getFirst();
     while(ifirst != null){
          if (ifirst.varNum.equals(vnum)){
          ifirst.varStat = 1;
          ifirst.varVal = dval;
          //     System.out.println("nodenum "+llfirst.nodeNum+" varval     " + ifirst.varVal +"     stat "+ifirst.varStat+" vnum " + ifirst.varNum);
     ifirst=ifirst.next;
     llfirst=llfirst.next;
     catch (Exception e){};
     return status;
public int isinputAvail(reqPacket inputReq)
     throws RemoteException{
     String srcnum = inputReq.srcNum;
     String varnum = inputReq.varNum;
     int availstatus =0;
     llfirst = list.getFirst();
     //System.out.println("llfirst.nodeNum     "+ llfirst.nodeNum);
     whileloop:while (llfirst != null){
          if((llfirst.nodeNum).equals(srcnum)){
          ifirst = llfirst.ilist.getFirst();
          breakloop: while(ifirst != null){
          //System.out.println("var num " + varnum + "     " + "status outside" + ifirst.varStat);
          if((ifirst.varNum).equals(varnum)){
          if (ifirst.varStat == 1){
               availstatus = 1;
               ifirst.varStat = 0;
               // System.out.println("var num " + varnum + "     " + "status" + availstatus);
               break whileloop;
     ifirst = ifirst.next;
     llfirst = llfirst.next;
     //System.out.println("var num " + varnum + "     " + "status" + availstatus);
     return availstatus;
public dataPacket senDatatoNode(reqPacket sendFromRTS)
     throws RemoteException {
     String nnum, vnum, dtype, dval;
     //nnum = "";
     dtype="";
     //opchannel = llfirst.olist;
     //     ipchannel = llfirst.ilist;
     reqPacket sendfromrts = sendFromRTS;
     nnum = sendfromrts.srcNum;
     vnum = sendfromrts.varNum;
     //     dtype = sendFromRTS.dataType;
     dval = "";
     int ctrchk=0;
     try{
     //send data to process node n reduce the counter by 1
     llfirst = list.getFirst();
          mainWhile: while (llfirst != null){
          if((llfirst.nodeNum).equals(nnum)){
          ofirst = llfirst.olist.getFirst();
     whileofirst: while(ofirst != null){
          if((ofirst.varNum).equals(vnum)){
          dval = ofirst.varVal;
          ofirst.counter = ofirst.counter - 1;
          //     System.out.println(ofirst.counter);
          ctrchk=ofirst.counter;
          break whileofirst;
     ofirst = ofirst.next;
//set the status of respective input channel to 0 as data has been sent
     ifirst = llfirst.ilist.getFirst();
     if(ctrchk == 0){
     whileifirst: while(ifirst != null){
          if((ifirst.varNum).equals(vnum)){
          //ifirst.varVal = dval;
          ifirst.varStat =0;
          break whileifirst;
     llfirst = llfirst.next;
     //System.out.println(llfirst);
     catch(NullPointerException s){}
//find type
try{
     DriverMatrix_mthds driver = new DriverMatrix_mthds();
     driver.VarTypeArray();
     driver.Variablelist();
     driver.NodeOrigin();
     driver.nodeInput();
     driver.numOfnodes();
     driver.noOfVariables();
     driver.novarType()     ;
     String[][] lookupvar = driver.varNameType();
     int i, j;
     String varNum = vnum;
     for(i=0; i<=lookupvar.length-1; i++){
          j=0;
          if(lookupvar[i][j] != null){
          if(lookupvar[i][j].equals(vnum)){
          dtype = lookupvar[i][2];
     catch (Exception d){}
     dataPacket retpac = new dataPacket(nnum, vnum, dtype, dval);
     System.out.println("msg sent "+ nnum +"     " + vnum+" "+ dtype+"     "+ dval);
     return retpac;
public String findnodeName(String nodeNum)
     throws RemoteException{
String nnum = nodeNum;
llfirst = list.getFirst();
while (llfirst != null){
     if((llfirst.nodeNum).equals(nnum)){
     return llfirst.nodeName;
     llfirst = llfirst.next;
     System.out.println("node Number does not match with the list of node numbers generated..try again");
     return null;
//find the nodenum given the node name
public String findnodenum(String nodename)
     throws RemoteException{
     String nodenumber ="";
     String nodname = nodename;
     try{DriverMatrix_mthds driver = new DriverMatrix_mthds();
     driver.VarTypeArray();
     driver.Variablelist();
     driver.NodeOrigin();
     driver.nodeInput();
     driver.numOfnodes();
     driver.noOfVariables();
     driver.novarType()     ;
     driver.varNameType();
     String[][] lookupnode = driver.nodeNumName();
     int i, j;
     for(i=0; i<=lookupnode.length-1; i++){
     for(j=0; j<=2; j++){
          if(lookupnode[i][j] != null){
          if(lookupnode[i][j].equals(nodname)){
               nodenumber = lookupnode[i][2];
     catch (Exception d){}
     return nodenumber;
public String findvarnum(String variablename)
     throws RemoteException{
     String varnumber = "";
     try{
     DriverMatrix_mthds driver = new DriverMatrix_mthds();
     driver.VarTypeArray();
     driver.Variablelist();
     driver.NodeOrigin();
     driver.nodeInput();
     driver.numOfnodes();
     driver.noOfVariables();
     driver.novarType()     ;
     String[][] lookupvar = driver.varNameType();
     int i, j;
     String varname = variablename;
     for(i=0; i<=lookupvar.length-1; i++){
     for(j=0; j<=2; j++){
          if(lookupvar[i][j] != null){
          if(lookupvar[i][j].equals(varname)){
               varnumber = lookupvar[i][0];
catch (Exception d){}
return varnumber;
public String findvartype(String varname)
     throws RemoteException{
     String vartype = "";
     try{
     DriverMatrix_mthds driver = new DriverMatrix_mthds();
     driver.VarTypeArray();
     driver.Variablelist();
     driver.NodeOrigin();
     driver.nodeInput();
     driver.numOfnodes();
     driver.noOfVariables();
     driver.novarType();
     String[][] lookupvar = driver.varNameType();
     int i, j;
     String varName = varname;
     for(i=0; i<=lookupvar.length-1; i++){
     for(j=0; j<=2; j++){
          if(lookupvar[i][j] != null){
          if(lookupvar[i][j].equals(varName)){
               vartype = lookupvar[i][2];
catch (Exception d){}
return vartype;
public String findtypenum(String vartype){
String varnum = "";int i;
try{
     DriverMatrix_mthds driver = new DriverMatrix_mthds();
     driver.VarTypeArray();
     driver.Variablelist();
     driver.NodeOrigin();
     driver.nodeInput();
     driver.numOfnodes();
     driver.noOfVariables();
     String varNum[][] =      driver.novarType()     ;
     String varType = vartype;
     for(i=0; i<=9-1; i++){
          if(varNum[i][0] != null){
          if(varNum[i][0].equals(varType)){
               varnum = varNum[i][1];
catch (Exception d){}
return vartype;
//return input variable list
public String[] inoutchanlist(String nodenum, String nodenam)
     throws RemoteException{
try{
     DriverMatrix_mthds drive = new DriverMatrix_mthds();
     String[] varLIST = drive.Variablelist();
     int i=0;int j;
     while(varLIST[i]!=null){
          i=i+1;
     int arrlength = i;
     inoutChan = new String[arrlength];
     i=0; j=0;
     WHILELOOP:
     while(!(varLIST[i].equals("end of file"))){
     while(varLIST[i].equals(nodenum)){
          i=i+1;
          while(varLIST[i].equals(nodenam)){
               i=i+1;
               while(!(varLIST[i].equals("end of input variable"))){
                    inoutChan[j] = varLIST[i];
                    i=i+1;
                    j=j+1;
          System.out.println("endofinput");
          inoutChan[j]="endofinchan";
          j=j+1;
          i=i+1;
          while(!(varLIST[i].equals("end of output variable"))){
     inoutChan[j] = varLIST[i];
     i=i+1;
     j=j+1;
     System.out.println("endofoutput");
     inoutChan[j]="endofoutchan";
     break WHILELOOP;
     i=i+1;
     arrlength =j;
     for(j=0; j<=arrlength-1; j++){
     System.out.println(inoutChan[j]);
     catch (Exception e){}
     return inoutChan;
public String[] inchannel(String[] inoutChan) throws RemoteException{
int count=0;int i=0, j=0;
System.out.println("entered");
while(inoutChan[count]!=null){
     System.out.println(count + " " +inoutChan[count]);
     count=count+1;
     inChan = new String[count];
     while(!(inoutChan[i].equals("endofinchan"))){
     inChan[j] =inoutChan[i];
     j=j+1; i=i+1;
return inChan;
public String[] outchannel(String[] inoutChan) throws RemoteException{
int count=0;int i=0, j=0;
System.out.println("entered");
while(inoutChan[count]!=null){
     System.out.println(count + " " +inoutChan[count]);
     count=count+1;
     outChan = new String[count+1];
     while(!(inoutChan[i].equals("endofinchan"))){
          i=i+1;
     i=i+1;
     while(!(inoutChan[i].equals("endofoutchan"))){
          outChan[j] =inoutChan[i];
          j=j+1; i=i+1;
     return outChan;
public String[] invarChan(String nodename, int guardno)throws RemoteException{
try{
DriverMatrix_mthds drive = new DriverMatrix_mthds();
invarLIST = drive.invarlist();
int i=0;int j;
while(invarLIST[i]!=null){
     i=i+1;
     int arrlength = i;
     inVAR = new String[arrlength];
     i=0; j=0;
          WHILELOOP: while(!(invarLIST[i].equals("end of file"))){
               if (invarLIST[i].equals(nodename)){
     i=i+1;
     while(!(invarLIST[i].equals(nodename+String.valueOf(guardno)))){
     i=i+1;}
     i=i+1;
     while(!(invarLIST[i].equals("endofguard"))){
     System.out.println(invarLIST[i]);inVAR[j]=invarLIST[i]; i=i+1; j=j+1;}
     break WHILELOOP;}
     i=i+1;}
}catch (Exception d){}
return inVAR;
public String[] outvarChan(String nodename, int guardcount)throws RemoteException{
     try{
     DriverMatrix_mthds drive = new DriverMatrix_mthds();
     outvarLIST = drive.outvarlist();
     int i=0;int j;
     while(outvarLIST[i]!=null){
          i=i+1;
     int arrlength = i;
     outVAR = new String[arrlength];
     i=0; j=0;
     WHILELOOP: while(!(outvarLIST[i].equals("end of file"))){
          if (outvarLIST[i].equals(nodename)){
               i=i+1;
               while(!(outvarLIST[i].equals(nodename+String.valueOf(guardcount)+"guard"))){
                    i=i+1;}
          i=i+1;
          while(!(outvarLIST[i].equals("end guard"))){
          System.out.println(outvarLIST[i]);outVAR[j]=outvarLIST[i]; i=i+1; j=j+1;}
          break WHILELOOP;}
     i=i+1;}
}catch (Exception d){}
return outVAR;
private static Boolean start;
private static Boolean tstart;
public void sendstart(Boolean start) throws RemoteException {
     tstart = start;
public Boolean getstart() throws RemoteException{
     return tstart;
private static Boolean done;
private static Boolean tdone;
public void senddone(Boolean done) throws RemoteException {
     tdone = done;
public Boolean getdone() throws RemoteException{
     return tdone;
private static Boolean vac_busy1;
private static Boolean tvac_busy1;
public void sendvac_busy1(Boolean vac_busy1) throws RemoteException {
     tvac_busy1 = vac_busy1;
public Boolean getvac_busy1() throws RemoteException{
     return tvac_busy1;
private static int cus1_rit1;
private static int tcus1_rit1;
public void sendcus1_rit1(int cus1_rit1) throws RemoteException {
     tcus1_rit1 = cus1_rit1;
public int getcus1_rit1() throws RemoteException{
     return tcus1_rit1;
private static int cus1_rit2;
private static int tcus1_rit2;
public void sendcus1_rit2(int cus1_rit2) throws RemoteException {
     tcus1_rit2 = cus1_rit2;
public int getcus1_rit2() throws RemoteException{
     return tcus1_rit2;
private static int cus1_rit3;
private static int tcus1_rit3;
public void sendcus1_rit3(int cus1_rit3) throws RemoteException {
     tcus1_rit3 = cus1_rit3;
public int getcus1_rit3() throws RemoteException{
     return tcus1_rit3;
private static int cus1_it1;
private static int tcus1_it1;
public void sendcus1_it1(int cus1_it1) throws RemoteException {
     tcus1_it1 = cus1_it1;
public int getcus1_it1() throws RemoteException{
     return tcus1_it1;
private static int cus1_it2;
private static int tcus1_it2;
public void sendcus1_it2(int cus1_it2) throws RemoteException {
     tcus1_it2 = cus1_it2;
public int getcus1_it2() throws RemoteException{
     return tcus1_it2;
private static int cus1_it3;
private static int tcus1_it3;
public void sendcus1_it3(int cus1_it3) throws RemoteException {
     tcus1_it3 = cus1_it3;
public int getcus1_it3() throws RemoteException{
     return tcus1_it3;
private static int stkit_11;
private static int tstkit_11;
public void sendstkit_11(int stkit_11) throws RemoteException {
     tstkit_11 = stkit_11;
public int getstkit_11() throws RemoteException{
     return tstkit_11;
private static int stkit_12;
private static int tstkit_12;
public void sendstkit_12(int stkit_12) throws RemoteException {
     tstkit_12 = stkit_12;
public int getstkit_12() throws RemoteException{
     return tstkit_12;
private static int stkit_13;
private static int tstkit_13;
public void sendstkit_13(int stkit_13) throws RemoteException {
     tstkit_13 = stkit_13;
public int getstkit_13() throws RemoteException{
     return tstkit_13;
private static int c1_it1;
private static int tc1_it1;
public void sendc1_it1(int c1_it1) throws RemoteException {
     tc1_it1 = c1_it1;
public int getc1_it1() throws RemoteException{
     return tc1_it1;
private static int c1_it2;
private static int tc1_it2;
public void sendc1_it2(int c1_it2) throws RemoteException {
     tc1_it2 = c1_it2;
public int getc1_it2() throws RemoteException{
     return tc1_it2;
private static int c1_it3;
private static int tc1_it3;
public void sendc1_it3(int c1_it3) throws RemoteException {
     tc1_it3 = c1_it3;
public int getc1_it3() throws RemoteException{
     return tc1_it3;
//endoffile