Error with connection

Dear All
First of all I new to JAVA and thanx lot for your help which help me lot to clear my mind.
Now I have problem with following code.
//---- HTML Code -----
<html>
<head>
<title>Well Come To Billing Ts</title>
   <meta http-equiv="Content-Type" content="text/html;">
   <script language="javaScript" type="text/javascript" src="calendar.js"></script>
   <link href="calendar.css" rel="stylesheet" type="text/css">
</head>
<form name ="mFORM"
        method="POST" action="SelectServer.do"
        onSubmit="document.mFORM.target = 'middle';return true;"
<div class="jive-quote"> </div>
<br>
          <b>From date </b> <br>
          <a href="#" onClick="setYears(2008, 2999);
          showCalender(this, 'T2');"><img align="left" src="calender.png">
          </a>
          <input align="left" type="text" size="14" name="T2"><br>
          <b>To date </b> <br>
          <a href="#" onClick="setYears(2008, 2999);
          showCalender(this, 'T3');"><img align="left" src="calender.png">
          </a>
          <input align="left" type="text" size="14" name="T3"><br><br>
       <left>
         <br><b><font size="3">Payment Location Code</font></b><br>
              <select name="PLC" size="1">
                  <option>107
                  <option>108
              </select><br><br>
              <b>Enter Bill Run Id :- </b><br>
                 <input type="text" name="T1" value="" size="12">
               <br><b><font size="3">Select Server :-</font></b><br>
                   <select name="Server" size="1">
                       <option>SVM_GDN
                       <option>SVM_SRV1
                       <option>SVM_SRV2
                       <option>SVM_SRV3
                       <option>SVM_SRV4
                       <option>SVM_SRV5
                       <option>SVM_SRV6
                       <option>SVM_SRV7
                   </select>
               <br><br>
               <input type="submit" value="DATA Report" name="SUBMIT" />
               </left>
               <left>
               <br><br>
               <input type="submit" value="Graph Report" name="SUBMIT">
               </left>
</form>
    
    <table id="calenderTable">
        <tbody id="calenderTableHead">
          <tr>
            <td colspan="4" align="left">
               <select onChange="showCalenderBody(createCalender(document.getElementById('selectYear').value,
                this.selectedIndex, false));" id="selectMonth">
                   <option value="0">Jan</option>
                   <option value="1">Feb</option>
                   <option value="2">Mar</option>
                   <option value="3">Apr</option>
                   <option value="4">May</option>
                   <option value="5">Jun</option>
                   <option value="6">Jul</option>
                   <option value="7">Aug</option>
                   <option value="8">Sep</option>
                   <option value="9">Oct</option>
                   <option value="10">Nov</option>
                   <option value="11">Dec</option>
               </select>
            </td>
            <td colspan="2" align="left">
                   <select onChange="showCalenderBody(createCalender(this.value,
                    document.getElementById('selectMonth').selectedIndex, false));" id="selectYear">
                    </select>
               </td>
            <td align="left">
                   <a href="#" onClick="closeCalender();"><font color="#003333" size="+1">X</font></a>
               </td>
            </tr>
       </tbody>
       <tbody id="calenderTableDays">
         <tr style="">
           <td>Sun</td><td>Mon</td><td>Tue</td><td>Wed</td><td>Thu</td><td>Fri</td><td>Sat</td>
         </tr>
       </tbody>
       <tbody id="calender"></tbody>
    </table>

<body>
</body>
</html>
//----- Servlet Code
package com.example.web;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.sql.*;
public class ServerSelection extends HttpServlet
     PrintWriter out;
   public void init()
     out = null;
     public void doPost(HttpServletRequest request,
                       HttpServletResponse response)
                       throws IOException, ServletException
          response.setContentType("text/html;charset=UTF-8");
          out = response.getWriter();
    String c = request.getParameter("Server");
    String t1 = request.getParameter("T1");
    String b1 = request.getParameter("SUBMIT");
    String p = request.getParameter("PLC");
    String t2 = request.getParameter("T2");
    String t3 = request.getParameter("T3");
    if (b1.equals("DATA Report")){
          if(t1.equals("") && (t2.equals(""))){
            RequestDispatcher view= request.getRequestDispatcher("Response.jsp");
            view.forward(request, response);
          else if(t2.equals("")) {
            RequestDispatcher view= request.getRequestDispatcher("ResponseBID.jsp");
            view.forward(request, response);
          else {
              RequestDispatcher view= request.getRequestDispatcher("ResponseDate.jsp");
            view.forward(request, response);
   else if(b1.equals("Graph Report")){
             if(t1.equals("") && (t2.equals(""))){
               RequestDispatcher view= request.getRequestDispatcher("ResponseGraph.jsp");
               view.forward(request, response);
          else if(t2.equals("")) {
               RequestDispatcher view= request.getRequestDispatcher("ResponseBIDGraph.jsp");
               view.forward(request, response);
          else {
              RequestDispatcher view= request.getRequestDispatcher("ResponseDateGraph.jsp");
            view.forward(request, response);
//--- DriverLoaderCode
package com.example.model;
import java.io.*;
import java.sql.*;
import java.util.*;
import oracle.jdbc.*;
import oracle.jdbc.driver.*;
import oracle.sql.*;
public class DriverLoader {
    /** Creates a new instance of DriverLoader */
    public DriverLoader() {
    Connection con;
     String driverName = "oracle.jdbc.driver.OracleDriver" ;
     String user = "amitj";
     String password = "amitj_05";
    public Connection getConnection(String server){
      try{
           Class.forName(driverName);
           if(server.equals("SVM_GDN")){
             String url = "jdbc:oracle:thin:@Host:Sid";
             con = DriverManager.getConnection(url,user,password);
           else if (server.equals("SVM_SRV1")){
               String url = "jdbc:oracle:thin:@Host:Sid";
             con = DriverManager.getConnection(url,user,password);
           else if (server.equals("SVM_SRV2")){
               String url = "jdbc:oracle:thin:@Host:Sid";
             con = DriverManager.getConnection(url,user,password);
           else if (server.equals("SVM_SRV3")){
               String url = "jdbc:oracle:thin:@Host:Sid";
             con = DriverManager.getConnection(url,user,password);
           else if (server.equals("SVM_SRV4")){
              String url = "jdbc:oracle:thin:@Host:Sid";
             con = DriverManager.getConnection(url,user,password);
           else if (server.equals("SVM_SRV5")){
               String url = "jdbc:oracle:thin:@Host:Sid";
             con = DriverManager.getConnection(url,user,password);
           else if (server.equals("SVM_SRV6")){
               String url = "jdbc:oracle:thin:@Host:Sid";
             con = DriverManager.getConnection(url,user,password);
           else if (server.equals("SVM_SRV7")){
               String url = "jdbc:oracle:thin:@Host:Sid";
             con = DriverManager.getConnection(url,user,password);
           else {
               System.out.println("Connection Error");
      catch(Exception e) {
          System.out.println(e);
       return con;
// ----      JSP Code
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%--
The taglib directive below imports the JSTL library. If you uncomment it,
you must also add the JSTL library to the project. The Add Library... action
on Libraries node in Projects view can be used to add the JSTL 1.1 library.
--%>
<%--
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
--%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">
<%@ page import="com.example.model.*" %>
<%@ page import="java.io.*,java.sql.*,java.util.*"%>
<%@ page import="oracle.jdbc.*,oracle.jdbc.driver.*,oracle.sql.*"%>
<html>
<head>
<title>Well Come To Billing Ts</title>
<base target="_self">
</head>
    <body>
<%
          String c = request.getParameter("Server");
          String p=request.getParameter("PLC");
                int sum = 0;
                 DriverLoader d = new DriverLoader();
                 Connection con = d.getConnection(c);
                    ResultSet rs = null;
                    PreparedStatement pstmt=null;
                      ResultSet rs1 = null;
                    PreparedStatement pstmt1=null;
                    ResultSetMetaData rsmd = null;
                        String query = null;
                        String query1 = null;
query = " "
query1 = " "
                    pstmt=con.prepareStatement(query);
                    pstmt1=con.prepareStatement(query1);
                    rs = pstmt.executeQuery();
                    rs1 = pstmt1.executeQuery();
                    rsmd = rs.getMetaData();
                    int colcount = rsmd.getColumnCount();
%>
                 </TABLE>
    </body>
</html>Plz help

Dear All
Actually , I am getting java.lang.NullPointerException while running this
I have servlet class to call different JSP for different selection
In JSP I am calling a model to get connection with server as per the selection
And the JSP use the that connection and gives the result to client
But for this model code I am getting java.lang.NullPointerException.
Even I am passing the server selection.
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException
     org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
     com.example.web.ServerSelection.doPost(ServerSelection.java:59)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
root cause
java.lang.NullPointerException
     org.apache.jsp.Response_jsp._jspService(Response_jsp.java:95)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
     com.example.web.ServerSelection.doPost(ServerSelection.java:59)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)

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     at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
     at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
     at com.sap.sql.jdbc.NativeConnectionFactory.createNativeConnection(NativeConnectionFactory.java:215)
     at com.sap.sql.connect.OpenSQLDataSourceImpl.createPooledConnection(OpenSQLDataSourceImpl.java:608)
     at com.sap.sql.connect.OpenSQLDataSourceImpl.getPooledConnection(OpenSQLDataSourceImpl.java:285)
     at com.sap.engine.core.configuration.impl.persistence.rdbms.DBConnectionPool.createConnection(DBConnectionPool.java:307)
     ... 15 more
[Feb 10, 2012 4:46:28 PM ] [Bootstrap module]> Problem occurred while performing synchronization.
================================================================
ERROR-2 : OBSERVED
================================================================
also i see error in work directory ...sapcpe.log as below
Host:d45adm> more sapcpe.log
2012/02/10 19:01:45
sapcpe version UC: @(#) $Id: //bas/700_REL/src/ccm/sapstart/sapxxcpe.c#20 $ SAP
Command line:
0: /usr/sap/D45/SYS/exe/run/sapcpe
1: name=D45
Trace level (profile): 1
INFO:    Try to find file table sapcpeft (default:sapcpeft)
INFO:    Try to find file table in the central directory /usr/sap/D45/SYS/exe/ctrun/sapcpeft
INFO:    not found any file table.
source: /usr/sap/D45/SYS/exe/ctrun
target: /usr/sap/D45/SYS/exe/run
ERROR: sapcpe: find <src> /usr/sap/D45/SYS/exe/ctrun failed, 2, No such file or directory, [sapxxcpe.c:1464]
sapcpe.log: END
================================================================
any thoughts & advises, clues ???
Rgds
PR

ISSUE - RESOLVED
####Summary######################################
Key Word of this Issue :
Exception in thread "main" java.sql.SQLException: Io exception: There is no process to read data written to a pipe.
Reason
Name resolution by conflict / failure by netsvc.conf even we have hostfile & ping works with host name for Every user.
Solution
Adjusted netsvc.conf file to use the hostfile.
DETAILS OF RESOLUTION
OSS Experts asked me to copy the results
SAP Note No. 867176: FAQ: Oracle JDBC (JdbcCheckup) - Point 10
01. I copied JdbcCheckup.sar to location /home/sidadm/867176-jdbchkup/
02. Extracted the same in same foler with command : SAPCAR -xvf JdbcCheckup.sar
03. Now folder contained 2 files ""JdbcCheckup.java"" and "" JdbcCheckup.sar""
04. my JDBC driver file ojdbc14.jar is in location /oracle/client/10x_64/instantclient/
05. To determine the JDBC driver version issued the below command as per note
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$Command : java -classpath /oracle/client/10x_64/instantclient/ojdbc14.jar:. JdbcCheckup
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
Please enter information to test connection to the database
user: SAPSR3DB
password: PASSWORD
database(a TNSNAME entry): SID
Hostname: portalserver
Port (1521): 1527
Connecting to the database...Connecting...
jdbc:oracle:thin:@portalserver:1527:SID, SAPSR3DB, PASSWORD
Exception in thread "main" java.sql.SQLException: Io exception: There is no process to read data written to a pipe.
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:255)
        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:387)
        at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:441)
        at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
        at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
        at java.sql.DriverManager.getConnection(DriverManager.java:559)
        at java.sql.DriverManager.getConnection(DriverManager.java:189)
        at JdbcCheckup.main(JdbcCheckup.java:128)
portalserver:sidadm>
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
06. Immediately id did google with above Syntax of error.
"""java.sql.SQLException: Io exception: There is no process to read data
written to a pipe"""
https://forums.oracle.com/forums/thread.jspa?threadID=1320173
which was referring about netsvc.conf
With UNIX Team discussions, adjusted the host file as first name
resolution source and DNS servers list followed in same(netsvc.conf) file. which
fixed the issue and "JdbcCheckup" passed.
07. JdbcCheckup Command - Passed output.
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$Command : java -classpath /oracle/client/10x_64/instantclient/ojdbc14.jar:. JdbcCheckup
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
Command : java -classpath /oracle/client/10x_64/instantclient/ojdbc14.jar:. JdbcCheckup
Please enter information to test connection to the database
user: SAPSR3DB
password: PASSWORD
database(a TNSNAME entry): SID
Hostname: portalserver
Port (1521): 1527
Connecting to the database...Connecting...
jdbc:oracle:thin:@portalserver:1527:SID, SAPSR3DB, PASSWORD
connected.
=============
Database Product Name is ... Oracle
Database Product Version is Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, Data Mining and Real Application Testing options
=============
JDBC Driver Name is ........ Oracle JDBC driver
JDBC Driver Version is ..... 10.2.0.4.0
=============
Hello World
Your JDBC installation is correct.
portalserver:sidadm>
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
BIG THANK TO EVERYONE !!!!!!!!!!!!!!!!
REGARDS
PR

How do I get connected to a server on my network via an IP address? When I try to open in a URL and login as a registered user with proper login it errors out saying there was a problem with connecting to the server?

I am new to Mac...How do I get connected to a server on my network via a hyper link IP address path? When I try to open in a URL and login as a registered user with proper login it errors out saying there was a problem with connecting to the server?

Some of the following is going to use some technical terms — this area is inherently somewhat technical.
If you don't understand some part of the following reply, please ask.
Is this your own OS X Server system on your own network, or is this some other server within some larger organization?
You're posting this in the OS X Server forum, which is a software package that allows OS X systems to provide web-based and many other services; to become servers.
If it's your OS X Server on your network, then the network and DNS configurations are suspect, or the server is somehow malfunctioning or misconfigured. This is unfortunately fairly common, as some folks do try to avoid setting up DNS services.
If it's a larger organization and somebody else is managing the server and the network, then you'll probably need to contact the IT folks for assistance; to learn the network setup and DNS requirements, and if there's a problem with the server itself.
The basic web URL "hyper link IP address path" — without using DNS — usually looks something the following, where you'll need to replace 10.20.30.40 with the IP address of your server:
http://10.20.30.40
UptimeJeff has posted a URL that specifies the AFP file system; an OS X file share. That's used if you're connecting to an Apple storage service somewhere on your network. You might alternatively need to specify smb://10.20.30.40 or such, if it's a Windows file server. (There can be additional requirements for connecting to Windows Server systems, too.)
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Error when connect to SAP with JCo Connector on linux

Dear all,
Please, i need help. i was tray to connect to SAP with SAP JCo on linux ubuntu, but i have an error.
this is the error :
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to SAP gateway failed
Connect_PM GWHOST=myhost, GWSERV=sapgw00, ASHOST=myhost, SYSNR=00
LOCATION    CPIC (TCP/IP) on local host
ERROR       hostname 'avatar-bumi' unknown
TIME        Thu Feb 14 15:25:48 2008
RELEASE     640
COMPONENT   NI (network interface)
VERSION     37
RC          -2
MODULE      niuxi_mt.c
LINE        388
DETAIL      NiPGetHostByName2: hostname 'avatar-bumi' not found
SYSTEM CALL gethostbyname_r
ERRNO       110
ERRNO TEXT Connection timed out
COUNT
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        at com.sap.mw.jco.rfc.MiddlewareRFC$Client.connect(MiddlewareRFC.java:1125)
        at com.sap.mw.jco.JCO$Client.connect(JCO.java:3138)
        at sapjco.Main.main(Main.java:34)
Exception in thread "main" com.sap.mw.jco.JCO$Exception: (121) JCO_ERROR_NULL_HANDLE: Invalid rfc_handle = NULL encountered
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        at com.sap.mw.jco.rfc.MiddlewareRFC$Client.getAttributes(MiddlewareRFC.java:1233)
        at com.sap.mw.jco.JCO$Client.getAttributesInternal(JCO.java:2940)
        at com.sap.mw.jco.JCO$Client.getAttributes(JCO.java:2994)
        at sapjco.Main.main(Main.java:38)
How to resolve this error....
Regards,
Lisa
Edited by: Lisa Yanti on Feb 14, 2008 9:35 AM

I was resolve this error by my self.
We can handle this error with registering our current IP and host name on /etc/hosts.
example:
content of /etc/hosts:
127.0.0.1 localhost
127.0.1.1 myhost.workgroup
The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
added the ip and host name to be like this configuration
127.0.0.1 localhost
127.0.1.1 myhost.workgroup
172.20.17.74 myhost
The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

I'm new to iPad mini and uv I'm trying to get a movie I purchased to where I can watch it offline but when I click the option to download and watch offline it keeps giving me and error with download try again later I have a good wifi connection ??

I'm new to iPad mini and uv I'm trying to get a movie I purchased to where I can watch it offline but when I click the option to download and watch offline it keeps giving me and error with download try again later I have a good wifi connection ??

You have a "good WiFi connection". What does that mean exactly? Can you send and receive email and are other internet related activities working OK for you? Have you tried restarting or rebooting your iPad? Sometimes that helps. If nothing else, it's a good place to start.
Restart the iPad by holding down on the sleep button until the red slider appears and then slide to shut off. To power up hold the sleep button until the Apple logo appears and let go of the button.
Reboot the iPad by holding down on the sleep and home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider if it appears on the screen - let go of the buttons. Let the iPad start up.

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