Unable to produce .class filepublic class CreateObjectDemo {
{color:#ff0000}public class{color} {color:#33cccc}CreateObjectDemo{color} {
{color:#ff0000}public static void main{color}(String[] args) {
//Declare and create a point object
//and two rectangle objects.
{color:#ff0000} Point originOne{color} = new Point(23, 94);
{color:#ff0000}Rectangle rectOne{color} = new Rectangle(originOne, 100, 200);
{color:#ff0000}Rectangle rectTwo{color} = new Rectangle(50, 100);
//display {color:#33cccc}rectOne's width, height, and area{color}
{color:#ff0000}System.out.println{color}{color:#ff00ff}("Width of rectOne: "{color} +
rectOne.width);
{color:#ff0000}System.out.println{color}{color:#ff00ff}("Height of rectOne: "{color} +
rectOne.height);
{color:#ff0000}System.out.println{color}{color:#ff00ff}("Area of rectOne: " + rectOne.getArea());
{color} //set rectTwo's position
rectTwo.origin = originOne;
//display rectTwo's position
System.out.println("X Position of rectTwo: "
+ rectTwo.origin.x);
System.out.println("Y Position of rectTwo: "
+ rectTwo.origin.y);
//move rectTwo and display its new position
rectTwo.move(40, 72);
System.out.println("X Position of rectTwo: "
+ rectTwo.origin.x);
System.out.println("Y Position of rectTwo: "
+ rectTwo.origin.y);
Above are source code of Create Object Demo.java file saved in C:\Java folder.I am unable to compile it.
Command line for compilation:
C:\Java>javac Create Object Demo.java
Regards,
damp
Hi jverd!
Yes! You are correct. I put extra space - file name should be CreateObjectDemo. No space in between bold script. So,
Command line for compilation:
C:\Java>javac CreateObjectDemo.java
Class file: CreateObjectDemo.class
Command line for run :
C:\Java>java CreateObjectDemo
Output : Width of rectOne: 100
Width of rectOne: 200
Area of rectOne: 2000
X Position of rectTwo: 23
Y Position of rectTwo: 94
X Position of rectTwo: 40
Y Position of rectTwo:72
Regards,
damp
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Unable to compile class for JSP
Please can anyone help me to solve this.
Actually,this is the condition.
In my db,there is a table called UserPassword, which has 4
fields(empNo,UserName,password,level). Now I want to do these things:
When the user submits the data to create a new account via HTML form, it submits the data to the file called CreateAcc.jsp. In this file it perform some logic,here are they.
1)To check the empNo,if it is already exist in the DB,
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if empNo =notexist then do task 2).
2)check the UserName,if it is already exist in the db,
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if UserName=notexist then do task 3).
3)Create a new user account and save it to the db.
To do these tasks,I never create a new objects for the tasks 1) and 2).
only for task 3)create an object.
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Here is the file CreateAcc.jsp
<%@ page language="java" %>
<%@ page import="core.UserAccManager" %>
<%@ page import="data.UserPassword" %>
<jsp:useBean id="UserAccManager" class="core.UserAccManager" scope="session"/>
<jsp:setProperty name="UserAccManager" property="*"/>
<jsp:useBean id="UserPassword" class="data.UserPassword" scope="session"/>
<jsp:setProperty name="UserPassword" property="*"/>
<%
String nextPage ="MainForm.jsp";
if(UserPassword.verifyEmpno()){
if(UserPassword.verifyUsername()){
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}else{
nextPage="UserNameExist.jsp";
else{
nextPage="UserAccError.jsp";
%>
<jsp:forward page="<%=nextPage%>"/>The directory structure:
UserPassword.java- F:/Project/core/data/UserPassword.java
UserAccManager.java - F:/Project/core/UserAccManager.java
Now both are compiling.I put the class files into the TOMCAT,as follows.
UserAccManager.class - webapps/mySystemName/WEB-INF/classes/core/
UserPassword.class - webapps/mySystemName/WEB-INF/classes/core/data/
Here is the full code of the file UserAccManager.java.
package core; //Is this right?
import data.UserPassword; //Is this right?
import java.io.*;
import java.sql.*;
import java.util.*;
import javax.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
public final class UserAccManager{
private static final String DRIVER = "com.mysql.jdbc.Driver";
private static final String URL = "jdbc:mysql://localhost:3306/superfine";
private static Connection connection;
private static PreparedStatement pstmt1;
private static PreparedStatement pstmt2;
private static PreparedStatement pstmt3;
private UserAccManager(){
// Initializes the connection and statements
public static void initConnection() {
if (connection == null) {
try {
String sql;
// Open the database
Class.forName(DRIVER).newInstance();
connection = DriverManager.getConnection(URL);
// Prepare the statements
sql = "SELECT * FROM UserPassword where empNo= ?";
pstmt1 = connection.prepareStatement(sql);
sql = "SELECT UserName FROM UserPassword where UserName= ?";
pstmt2 = connection.prepareStatement(sql);
sql ="INSERT INTO UserPassword VALUES(?,?,?,?)";
pstmt3 = connection.prepareStatement(sql);
catch (Exception ex) {
System.err.println(ex.getMessage());
// Closes the connection and statements
// Method to be called by main class when finished with DB
public void closeConnection() {
//same as previous
public static boolean verifyEmpno(int empno) {
boolean emp_no_select_ok = false;
int emp = -1;
initConnection();
try {
pstmt1.setInt(1, empno);
ResultSet rs1 = pstmt1.executeQuery();
while(rs1.next()){
emp=rs1.getInt("empNo");
if(emp>0)
emp_no_select_ok = false;
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emp_no_select_ok = true;
rs1.close();
pstmt1.close();
catch (Exception ex) {
System.err.println(ex.getMessage());
return emp_no_select_ok;
public static boolean verifyUsername(String username) {
boolean user_name_select_ok = false;
String user = "xxxx";
initConnection();
try {
pstmt2.setString(1, username);
ResultSet rs2 = pstmt2.executeQuery();
while(rs2.next()){
user=rs2.getString("UserName");
if(!user.equals("xxxx"))
user_name_select_ok = false;
} else{
user_name_select_ok = true;
rs2.close();
catch (Exception ex) {
System.err.println(ex.getMessage());
return user_name_select_ok;
public static boolean createAcc(int empno, String username, String password, int
level){
boolean create_acc_ok = false;
initConnection();
try{
//create a new object,from the UserPassword table.
UserPassword useraccount = new UserPassword();
useraccount.setEmpno(empno);
useraccount.setUsername(username);
useraccount.setPassword(password);
useraccount.setLevel(level);
//assign value for ???
pstmt3.setInt(1, useraccount.getEmpno());
pstmt3.setString(2, useraccount.getUsername());
pstmt3.setString(3, useraccount.getPassword());
pstmt3.setInt(4, useraccount.getLevel());
if(pstmt3.executeUpdate()==1) create_acc_ok=true;
pstmt3.close();
//con.close();
catch(SQLException e2){
System.err.println(e2.getMessage());
return create_acc_ok;
}here is the bean (part of it)
package data; //is it right?
import java.io.*;
import java.sql.*;
import java.util.*;
import javax.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class UserPassword
private int empno;
private String username;
private String password;
private int level;
// Constructor
public UserPassword()
this.empno = empno;
this.username = username;
this.password = password;
this.level = level;
// setters and getters are here.
// public boolean verifyEmpno() {
// return UserAccManager.verifyEmpno(empno);
// public boolean verifyUsername(String username) {
// return UserAccManager.verifyUsername(username);
// These 2 methods not compile with or without para's.So I leave that job for the
//controll class UserAccManager.java.
Now my problem is this: When I submit data, there is an error;org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: -1 in the jsp file: null
Generated servlet error:
[javac] Compiling 1 source file
C:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:8:
cannot access core.data.UserPassword
bad class file: C:\Program Files\Apache Group\Tomcat
4.1\webapps\HRM\WEB-INF\classes\core\data\UserPassword.class
class file contains wrong class: data.UserPassword
Please remove or make sure it appears in the correct subdirectory of the classpath.
import core.data.UserPassword;
^
1 error
Are there any mistakes? If so tell me where is it and how to change them.Please help.I try it that way, but it don't compile.
Error:core\data\UserPassword.java:package javax.servlet does not exist
import javax.servlet.*;
core\data\UserPassword.java:package javax.servlet.http does not exist
import javax.servlet.http.*;
So,I comment them only in the UserPassword.java file,and compile it again.
Then it compile well.I goto the directory to get the .class files.
But there is only UserPassword.class inside the data folder. There is not
UserAccManager.class in the core folder.
Then I try this way,I put my 2 java files in to a new folder,
F:\SystemName\com
When I try it that way, but it don't compile.
javac -classpath . -d . com\*.javaError:com\UserPassword.java:package javax.servlet does not exist
import javax.servlet.*;
com\UserPassword.java:package javax.servlet.http does not exist
import javax.servlet.http.*;
So,I comment them only in the UserPassword.java file,and compile it again.
Now both are compiling well.There was 2 class files.
I put them in to the WEB-INF/classes/com directory.
Start the server.But it gave errors:
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:68: cannot resolve symbol
symbol : variable empno
location: class org.apache.jsp.CreateAcc_jsp
if(UserPassword.verifyEmpno(empno)){
^
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:69: cannot resolve symbol
symbol : variable username
location: class org.apache.jsp.CreateAcc_jsp
if(UserAccManager.verifyUsername(username)){
^
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:69: non-static method
verifyUsername(java.lang.String) cannot be referenced from a static context
if(UserAccManager.verifyUsername(username)){
^
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:70: cannot resolve symbol
symbol : variable empno
location: class org.apache.jsp.CreateAcc_jsp
if(UserAccManager.createAcc(empno, username,password,level)) nextPage
="MsgAcc.jsp";
^
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:70: cannot resolve symbol
symbol : variable username
location: class org.apache.jsp.CreateAcc_jsp
if(UserAccManager.createAcc(empno, username,password,level)) nextPage
="MsgAcc.jsp";
^
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:70: cannot resolve symbol
symbol : variable password
location: class org.apache.jsp.CreateAcc_jsp
if(UserAccManager.createAcc(empno, username,password,level)) nextPage
="MsgAcc.jsp";
^
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:70: cannot resolve symbol
symbol : variable level
location: class org.apache.jsp.CreateAcc_jsp
if(UserAccManager.createAcc(empno, username,password,level)) nextPage
="MsgAcc.jsp";
^
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:70: non-static method
createAcc(int,java.lang.String,java.lang.String,int) cannot be referenced from a static
context
if(UserAccManager.createAcc(empno, username,password,level)) nextPage
="MsgAcc.jsp";
^
8 errorsTo solve the problem non-static method,I goto the UserAccManager.java file and do these
things.
package com;
import java.io.*;
import java.sql.*;
import java.util.*;
import javax.sql.*;
//import javax.servlet.*; //otherwise it tells an error.(package
//javax.servlet does not exist)
//import javax.servlet.http.*;
public class UserAccManager {
private static final String DRIVER = "com.mysql.jdbc.Driver";
private static final String URL = "jdbc:mysql://localhost:3306/superfine";
private static Connection connection;
private static PreparedStatement pstmt1;
private static PreparedStatement pstmt2;
private static PreparedStatement pstmt3;
private UserAccManager() {
// Initializes the connection and statements
private static void initConnection() {
//same
// Closes the connection and statements
// Method to be called by main class when finished with DB
public static void closeConnection() {
//same
public static boolean verifyEmpno(int empno) {
// same.
public static boolean verifyUsername(String username) {
//same.
public static boolean createAcc(int empno, String username, String password, int
level){
//same
package com;
import java.io.*;
import java.sql.*;
import java.util.*;
import javax.sql.*;
//import javax.servlet.*;
//import javax.servlet.http.*;
public class UserPassword {
// same
Again compile those files and put .class filses into the WEB-INF/classes/com directory.
When i submits the data via the form it generates an error:
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 9 in the jsp file: /CreateAcc.jsp
Generated servlet error:
[javac] Compiling 1 source file
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:68: cannot resolve symbol
symbol : variable empno
location: class org.apache.jsp.CreateAcc_jsp
if(UserAccManager.verifyEmpno(empno)){
^
An error occurred at line: 9 in the jsp file: /CreateAcc.jsp
Generated servlet error:
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:69: cannot resolve symbol
symbol : variable username
location: class org.apache.jsp.CreateAcc_jsp
if(UserAccManager.verifyUsername(username)){
^
An error occurred at line: 9 in the jsp file: /CreateAcc.jsp
Generated servlet error:
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:70: cannot resolve symbol
symbol : variable empno
location: class org.apache.jsp.CreateAcc_jsp
if(UserAccManager.createAcc(empno, username,password,level)) nextPage
="MsgAcc.jsp";
^
An error occurred at line: 9 in the jsp file: /CreateAcc.jsp
Generated servlet error:
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:70: cannot resolve symbol
symbol : variable username
location: class org.apache.jsp.CreateAcc_jsp
if(UserAccManager.createAcc(empno, username,password,level)) nextPage
="MsgAcc.jsp";
^
An error occurred at line: 9 in the jsp file: /CreateAcc.jsp
Generated servlet error:
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:70: cannot resolve symbol
symbol : variable password
location: class org.apache.jsp.CreateAcc_jsp
if(UserAccManager.createAcc(empno, username,password,level)) nextPage
="MsgAcc.jsp";
^
An error occurred at line: 9 in the jsp file: /CreateAcc.jsp
Generated servlet error:
C:\Program Files\Apache Group\Tomcat
4.1\work\Standalone\localhost\HRM\CreateAcc_jsp.java:70: cannot resolve symbol
symbol : variable level
location: class org.apache.jsp.CreateAcc_jsp
if(UserAccManager.createAcc(empno, username,password,level)) nextPage
="MsgAcc.jsp";
^
6 errorshere is the CreateAcc.jsp file
<%@ page language="java" %>
<%@ page import="com.UserAccManager" %>
<%@ page import="com.UserPassword" %>
<jsp:useBean id="userPassword" class="com.UserPassword" scope="request"/>
<jsp:setProperty name="userPassword" property="*" />
<%
String nextPage ="MainForm.jsp";
if(UserAccManager.verifyEmpno(empno)){
if(UserAccManager.verifyUsername(username)){
if(UserAccManager.createAcc(empno, username,password,level)) nextPage
="MsgAcc.jsp";
}else{
nextPage="UserNameExist.jsp";
else{
nextPage="UserAccError.jsp";
%>
<jsp:forward page="<%=nextPage%>"/>Please, anyone know how to send these parameters to the java file.
Thanks. -
Wrapped: Unable to load class "com.cache.DBCacheStore"
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java.lang.UnsupportedOperationException
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ibutedCache, member=1):
java.lang.UnsupportedOperationException
at java.util.Collections$UnmodifiableMap.put(Collections.java:1285)
As the exception occurs, the cluster gets restarted and when i re-run the application, it again goes for a DB hit instead of cache hit.
Note : I have the cache-server.cmd running in one the console window.
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<read-write-backing-map-scheme>
<internal-cache-scheme>
<class-scheme>
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</class-scheme>
</internal-cache-scheme>
<cachestore-scheme>
<class-scheme>
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com.cache.DBCacheStore
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<init-params>
<init-param>
<param-type>
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EMP_ADDR_VIEW
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</cachestore-scheme>
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Thanks
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Edited by: user1073902 on Nov 10, 2010 4:25 AMHello Noah,
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cache-server.cmd Log File
=========================
java version "1.6.0_20"
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Java HotSpot(TM) Server VM (build 16.3-b01, mixed mode)
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=n/a): Optional configuration override "/tangosol-coherence-override.xml" is not
specified
2010-11-11 09:51:49.649/0.251 Oracle Coherence 3.6.0.0 <D5> (thread=main, member
=n/a): Optional configuration override "/custom-mbeans.xml" is not specified
2010-11-11 09:51:49.649/0.251 Oracle Coherence 3.6.0.0 <D6> (thread=main, member
=n/a): Loaded edition data from "jar:file:/E:/coherence/lib/coherence.jar!/coher
ence-grid.xml"
Oracle Coherence Version 3.6.0.0 Build 17229
Grid Edition: Development mode
Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
2010-11-11 09:51:49.885/0.487 Oracle Coherence GE 3.6.0.0 <Info> (thread=main, m
ember=n/a): Loaded cache configuration from "file:/E:/bea/user_projects/workspac
es/workSpaceStudio/coh/cache-config.xml"
2010-11-11 09:51:50.231/0.833 Oracle Coherence GE 3.6.0.0 <D4> (thread=main, mem
ber=n/a): TCMP bound to /10.144.32.78:8088 using SystemSocketProvider
2010-11-11 09:51:53.786/4.388 Oracle Coherence GE 3.6.0.0 <Info> (thread=Cluster
, member=n/a): Created a new cluster "mycluster" with Member(Id=1, Timestamp=201
0-11-11 09:51:50.231, Address=10.144.32.78:8088, MachineId=47694, Location=site:
XyzT.CORP.Xyz.IN,machine:hdchshocms2026,process:4472, Role=CoherenceServer, Edit
ion=Grid Edition, Mode=Development, CpuCount=2, SocketCount=2) UID=0x0A90204E000
0012C392B0817BA4E1F98
2010-11-11 09:51:53.786/4.388 Oracle Coherence GE 3.6.0.0 <Info> (thread=main, m
ember=n/a): Started cluster Name=mycluster
Group{Address=224.0.0.1, Port=5455, TTL=4}
MasterMemberSet
ThisMember=Member(Id=1, Timestamp=2010-11-11 09:51:50.231, Address=10.144.32.7
8:8088, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,machine:hdchshocms2026,p
rocess:4472, Role=CoherenceServer)
OldestMember=Member(Id=1, Timestamp=2010-11-11 09:51:50.231, Address=10.144.32
.78:8088, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,machine:hdchshocms2026
,process:4472, Role=CoherenceServer)
ActualMemberSet=MemberSet(Size=1, BitSetCount=2
Member(Id=1, Timestamp=2010-11-11 09:51:50.231, Address=10.144.32.78:8088, M
achineId=47694, Location=site:XyzT.CORP.Xyz.IN,machine:hdchshocms2026,process:44
72, Role=CoherenceServer)
RecycleMillis=1200000
RecycleSet=MemberSet(Size=0, BitSetCount=0
TcpRing{Connections=[]}
IpMonitor{AddressListSize=0}
2010-11-11 09:51:53.833/4.435 Oracle Coherence GE 3.6.0.0 <D5> (thread=Invocatio
n:Management, member=1): Service Management joined the cluster with senior servi
ce member 1
2010-11-11 09:51:54.085/4.687 Oracle Coherence GE 3.6.0.0 <D5> (thread=Distribut
edCache, member=1): Service DistributedCache joined the cluster with senior serv
ice member 1
2010-11-11 09:51:54.101/4.703 Oracle Coherence GE 3.6.0.0 <D6> (thread=Distribut
edCache, member=1): Service DistributedCache: sending PartitionConfig ConfigSync
to all
2010-11-11 09:51:54.116/4.718 Oracle Coherence GE 3.6.0.0 <Info> (thread=main, m
ember=1):
Services
ClusterService{Name=Cluster, State=(SERVICE_STARTED, STATE_JOINED), Id=0, Vers
ion=3.6, OldestMemberId=1}
InvocationService{Name=Management, State=(SERVICE_STARTED), Id=1, Version=3.1,
OldestMemberId=1}
PartitionedCache{Name=DistributedCache, State=(SERVICE_STARTED), LocalStorage=
enabled, PartitionCount=257, BackupCount=1, AssignedPartitions=257, BackupPartit
ions=0}
Started DefaultCacheServer...
2010-11-11 09:55:41.209/231.811 Oracle Coherence GE 3.6.0.0 <D5> (thread=Cluster
, member=1): Member(Id=2, Timestamp=2010-11-11 09:55:41.216, Address=10.144.32.7
8:8090, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,machine:hdchshocms2026,p
rocess:5304, Role=XyzCacheDatabaseCache) joined Cluster with senior member 1
2010-11-11 09:55:41.209/231.811 Oracle Coherence GE 3.6.0.0 <D6> (thread=Cluster
, member=1): TcpRing connecting to Member(Id=2, Timestamp=2010-11-11 09:55:41.21
6, Address=10.144.32.78:8090, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,ma
chine:hdchshocms2026,process:5304, Role=XyzCacheDatabaseCache)
2010-11-11 09:55:41.209/231.811 Oracle Coherence GE 3.6.0.0 <D6> (thread=Cluster
, member=1): TcpRing connected to Member(Id=2, Timestamp=2010-11-11 09:55:41.216
, Address=10.144.32.78:8090, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,mac
hine:hdchshocms2026,process:5304, Role=XyzCacheDatabaseCache)
2010-11-11 09:55:41.287/231.889 Oracle Coherence GE 3.6.0.0 <D5> (thread=Cluster
, member=1): Member 2 joined Service Management with senior member 1
2010-11-11 09:55:41.553/232.155 Oracle Coherence GE 3.6.0.0 <D5> (thread=Cluster
, member=1): Member 2 joined Service DistributedCache with senior member 1
2010-11-11 09:55:41.553/232.155 Oracle Coherence GE 3.6.0.0 <Error> (thread=Dist
ributedCache, member=1): BackingMapManager com.tangosol.net.DefaultConfigurableC
acheFactory$Manager: failed to instantiate a cache: VirtualCache
2010-11-11 09:55:41.553/232.155 Oracle Coherence GE 3.6.0.0 <Error> (thread=Dist
ributedCache, member=1):
(Wrapped: Unable to load class "com.cache.DBCacheStore" using sun.misc.Launc
her$AppClassLoader@13f5d07
<class-scheme>
<class-name>com.cache.DBCacheStore</class-name>
<init-params>
<init-param>
<param-type>java.lang.String</param-type>
<param-value>EMP_ADDR_VIEW</param-value>
</init-param>
</init-params>
</class-scheme>) java.lang.ClassNotFoundException: com.cache.DBCacheStore
at com.tangosol.util.Base.ensureRuntimeException(Base.java:293)
at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2487)
at com.tangosol.net.DefaultConfigurableCacheFactory.instantiateAny(Defau
ltConfigurableCacheFactory.java:3256)
at com.tangosol.net.DefaultConfigurableCacheFactory.instantiateCacheStor
e(DefaultConfigurableCacheFactory.java:3106)
at com.tangosol.net.DefaultConfigurableCacheFactory.instantiateReadWrite
BackingMap(DefaultConfigurableCacheFactory.java:1674)
at com.tangosol.net.DefaultConfigurableCacheFactory.configureBackingMap(
DefaultConfigurableCacheFactory.java:1429)
at com.tangosol.net.DefaultConfigurableCacheFactory$Manager.instantiateB
ackingMap(DefaultConfigurableCacheFactory.java:3904)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.partitionedService.PartitionedCache$Storage.instantiateResourceMap(Partition
edCache.CDB:21)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.partitionedService.PartitionedCache$Storage.setCacheName(PartitionedCache.CD
B:25)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.partitionedService.PartitionedCache$ServiceConfig$ConfigListener.entryInsert
ed(PartitionedCache.CDB:17)
at com.tangosol.util.MapEvent.dispatch(MapEvent.java:266)
at com.tangosol.util.MapEvent.dispatch(MapEvent.java:226)
at com.tangosol.util.MapListenerSupport.fireEvent(MapListenerSupport.jav
a:556)
at com.tangosol.util.ObservableHashMap.dispatchEvent(ObservableHashMap.j
ava:229)
at com.tangosol.util.ObservableHashMap$Entry.onAdd(ObservableHashMap.jav
a:270)
at com.tangosol.util.SafeHashMap.put(SafeHashMap.java:244)
at com.tangosol.coherence.component.util.ServiceConfig$Map.put(ServiceCo
nfig.CDB:43)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.partitionedService.PartitionedCache$StorageIdRequest.onReceived(PartitionedC
ache.CDB:45)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.G
rid.onMessage(Grid.CDB:11)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.G
rid.onNotify(Grid.CDB:33)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.PartitionedService.onNotify(PartitionedService.CDB:3)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.partitionedService.PartitionedCache.onNotify(PartitionedCache.CDB:3)
at com.tangosol.coherence.component.util.Daemon.run(Daemon.CDB:42)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: com.cache.DBCacheStore
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at com.tangosol.util.ExternalizableHelper.loadClass(ExternalizableHelper
.java:3011)
at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2421)
... 22 more
2010-11-11 09:55:41.631/232.233 Oracle Coherence GE 3.6.0.0 <D5> (thread=Distrib
utedCache, member=1): 3> Transferring primary PartitionSet{0, 1, 2, 3, 4, 5, 6,
7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67,
68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87,
88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 1
06, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 1
22, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 1
38, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 1
54, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 1
70, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 1
86, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 2
02, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 2
18, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 2
34, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 2
50, 251, 252, 253, 254, 255, 256} to member 2 requesting 128
2010-11-11 09:55:41.741/232.343 Oracle Coherence GE 3.6.0.0 <D4> (thread=Distrib
utedCache, member=1): 1> Transferring 129 out of 129 partitions to a node-safe b
ackup 1 at member 2 (under 129)
2010-11-11 09:55:41.757/232.359 Oracle Coherence GE 3.6.0.0 <D5> (thread=Distrib
utedCache, member=1): Transferring 0KB of backup[1] for PartitionSet{128, 129, 1
30, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 1
46, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 1
62, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 1
78, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 1
94, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 2
10, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 2
26, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 2
42, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256} to mem
ber 2
2010-11-11 09:55:42.070/232.672 Oracle Coherence GE 3.6.0.0 <D5> (thread=Cluster
, member=1): TcpRing disconnected from Member(Id=2, Timestamp=2010-11-11 09:55:4
1.216, Address=10.144.32.78:8090, MachineId=47694, Location=site:XyzT.CORP.Xyz.I
N,machine:hdchshocms2026,process:5304, Role=XyzCacheDatabaseCache) due to a peer
departure; removing the member.
2010-11-11 09:55:42.070/232.672 Oracle Coherence GE 3.6.0.0 <D5> (thread=Cluster
, member=1): Member 2 left service Management with senior member 1
2010-11-11 09:55:42.070/232.672 Oracle Coherence GE 3.6.0.0 <D5> (thread=Cluster
, member=1): Member 2 left service DistributedCache with senior member 1
2010-11-11 09:55:42.070/232.672 Oracle Coherence GE 3.6.0.0 <D5> (thread=Cluster
, member=1): Member(Id=2, Timestamp=2010-11-11 09:55:42.07, Address=10.144.32.78
:8090, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,machine:hdchshocms2026,pr
ocess:5304, Role=XyzCacheDatabaseCache) left Cluster with senior member 1
2010-11-11 09:55:42.101/232.703 Oracle Coherence GE 3.6.0.0 <Error> (thread=Dist
ributedCache, member=1): Terminating PartitionedCache due to unhandled exception
: java.lang.UnsupportedOperationException
2010-11-11 09:55:42.101/232.703 Oracle Coherence GE 3.6.0.0 <Error> (thread=Dist
ributedCache, member=1):
java.lang.UnsupportedOperationException
at java.util.Collections$UnmodifiableMap.put(Collections.java:1285)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.partitionedService.PartitionedCache$Storage.putPrimaryResource(PartitionedCa
che.CDB:44)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.partitionedService.PartitionedCache$Storage.moveResourcesToPrimary(Partition
edCache.CDB:50)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.partitionedService.PartitionedCache$Storage.movePartition(PartitionedCache.C
DB:9)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.partitionedService.PartitionedCache.movePartition(PartitionedCache.CDB:14)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.PartitionedService.assignPrimaryPartition(PartitionedService.CDB:38)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.PartitionedService.restoreOrphans(PartitionedService.CDB:42)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.PartitionedService.onOwnershipRequest(PartitionedService.CDB:13)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.PartitionedService$OwnershipRequest.onReceived(PartitionedService.CDB:5)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.G
rid.onMessage(Grid.CDB:11)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.G
rid.onNotify(Grid.CDB:33)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.PartitionedService.onNotify(PartitionedService.CDB:3)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.g
rid.partitionedService.PartitionedCache.onNotify(PartitionedCache.CDB:3)
at com.tangosol.coherence.component.util.Daemon.run(Daemon.CDB:42)
at java.lang.Thread.run(Thread.java:619)
2010-11-11 09:55:42.101/232.703 Oracle Coherence GE 3.6.0.0 <D5> (thread=Distrib
utedCache, member=1): Service DistributedCache left the cluster
2010-11-11 09:55:45.012/235.614 Oracle Coherence GE 3.6.0.0 <Info> (thread=main,
member=1): Restarting Service: DistributedCache
2010-11-11 09:55:45.012/235.614 Oracle Coherence GE 3.6.0.0 <D5> (thread=Distrib
utedCache, member=1): Service DistributedCache joined the cluster with senior se
rvice member 1
2010-11-11 09:55:45.012/235.614 Oracle Coherence GE 3.6.0.0 <D6> (thread=Distrib
utedCache, member=1): Service DistributedCache: sending PartitionConfig ConfigSy
nc to all
Client Application Log
======================
2010-11-11 09:59:07.380/0.251 Oracle Coherence 3.6.0.0 <Info> (thread=main, member=n/a): Loaded operational configuration from "jar:file:/E:/coherence/lib/coherence.jar!/tangosol-coherence.xml"
2010-11-11 09:59:07.380/0.251 Oracle Coherence 3.6.0.0 <Info> (thread=main, member=n/a): Loaded operational overrides from "jar:file:/E:/coherence/lib/coherence.jar!/tangosol-coherence-override-dev.xml"
2010-11-11 09:59:07.380/0.251 Oracle Coherence 3.6.0.0 <D5> (thread=main, member=n/a): Optional configuration override "/tangosol-coherence-override.xml" is not specified
2010-11-11 09:59:07.380/0.251 Oracle Coherence 3.6.0.0 <D5> (thread=main, member=n/a): Optional configuration override "/custom-mbeans.xml" is not specified
2010-11-11 09:59:07.395/0.266 Oracle Coherence 3.6.0.0 <D6> (thread=main, member=n/a): Loaded edition data from "jar:file:/E:/coherence/lib/coherence.jar!/coherence-grid.xml"
Oracle Coherence Version 3.6.0.0 Build 17229
Grid Edition: Development mode
Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
2010-11-11 09:59:07.896/0.767 Oracle Coherence GE 3.6.0.0 <D4> (thread=main, member=n/a): TCMP bound to /10.144.32.78:8090 using SystemSocketProvider
2010-11-11 09:59:09.164/2.035 Oracle Coherence GE 3.6.0.0 <Info> (thread=Cluster, member=n/a): This Member(Id=2, Timestamp=2010-11-11 09:59:09.164, Address=10.144.32.78:8090, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,machine:hdchshocms2026,process:2404, Role=XyzCacheDatabaseCache, Edition=Grid Edition, Mode=Development, CpuCount=2, SocketCount=2) joined cluster "mycluster" with senior Member(Id=1, Timestamp=2010-11-11 09:58:30.832, Address=10.144.32.78:8088, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,machine:hdchshocms2026,process:4772, Role=CoherenceServer, Edition=Grid Edition, Mode=Development, CpuCount=2, SocketCount=2)
2010-11-11 09:59:09.180/2.051 Oracle Coherence GE 3.6.0.0 <D6> (thread=Cluster, member=n/a): TcpRing connecting to Member(Id=1, Timestamp=2010-11-11 09:58:30.832, Address=10.144.32.78:8088, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,machine:hdchshocms2026,process:4772, Role=CoherenceServer)
2010-11-11 09:59:09.180/2.051 Oracle Coherence GE 3.6.0.0 <D6> (thread=Cluster, member=n/a): TcpRing connected to Member(Id=1, Timestamp=2010-11-11 09:58:30.832, Address=10.144.32.78:8088, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,machine:hdchshocms2026,process:4772, Role=CoherenceServer)
2010-11-11 09:59:09.180/2.051 Oracle Coherence GE 3.6.0.0 <D5> (thread=Cluster, member=n/a): Member 1 joined Service Cluster with senior member 1
2010-11-11 09:59:09.180/2.051 Oracle Coherence GE 3.6.0.0 <D5> (thread=Cluster, member=n/a): Member 1 joined Service Management with senior member 1
2010-11-11 09:59:09.180/2.051 Oracle Coherence GE 3.6.0.0 <D5> (thread=Cluster, member=n/a): Member 1 joined Service DistributedCache with senior member 1
2010-11-11 09:59:09.180/2.051 Oracle Coherence GE 3.6.0.0 <Info> (thread=main, member=n/a): Started cluster Name=mycluster
Group{Address=224.0.0.1, Port=5455, TTL=4}
MasterMemberSet
ThisMember=Member(Id=2, Timestamp=2010-11-11 09:59:09.164, Address=10.144.32.78:8090, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,machine:hdchshocms2026,process:2404, Role=XyzCacheDatabaseCache)
OldestMember=Member(Id=1, Timestamp=2010-11-11 09:58:30.832, Address=10.144.32.78:8088, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,machine:hdchshocms2026,process:4772, Role=CoherenceServer)
ActualMemberSet=MemberSet(Size=2, BitSetCount=2
Member(Id=1, Timestamp=2010-11-11 09:58:30.832, Address=10.144.32.78:8088, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,machine:hdchshocms2026,process:4772, Role=CoherenceServer)
Member(Id=2, Timestamp=2010-11-11 09:59:09.164, Address=10.144.32.78:8090, MachineId=47694, Location=site:XyzT.CORP.Xyz.IN,machine:hdchshocms2026,process:2404, Role=XyzCacheDatabaseCache)
RecycleMillis=1200000
RecycleSet=MemberSet(Size=0, BitSetCount=0
TcpRing{Connections=[1]}
IpMonitor{AddressListSize=0}
2010-11-11 09:59:09.227/2.098 Oracle Coherence GE 3.6.0.0 <D5> (thread=Invocation:Management, member=2): Service Management joined the cluster with senior service member 1
2010-11-11 09:59:09.289/2.160 Oracle Coherence GE 3.6.0.0 <Info> (thread=main, member=2): Loaded cache configuration from "file:/E:/bea/user_projects/workspaces/workSpaceStudio/coh/cache-config.xml"
2010-11-11 09:59:09.461/2.332 Oracle Coherence GE 3.6.0.0 <D5> (thread=DistributedCache, member=2): Service DistributedCache joined the cluster with senior service member 1
DB Hit
DBCacheStore(String) called...
2010-11-11 09:59:09.524/2.395 Oracle Coherence GE 3.6.0.0 <D4> (thread=DistributedCache, member=2): Asking member 1 for 128 primary partitions
load() called...
Emp Id:1, Emp Name:Employee, Emp Addr:Address
Cache Hit
Emp Id:1, Emp Name:Employee, Emp Addr:Address
Client Java Program
===================
package com.cache;
import com.tangosol.net.CacheFactory;
import com.tangosol.net.NamedCache;
public class DatabaseCache {
public DatabaseCache() { }
private NamedCache cache;
public void createCache() {
CacheFactory.ensureCluster();
cache = CacheFactory.getCache("VirtualCache");
public void retrieveEntry() {
System.out.println("DB Hit");
System.out.println(cache.get("1"));
System.out.println("Cache Hit");
System.out.println(cache.get("1"));
public static void main(String[] args) {
DatabaseCache databaseCache = new DatabaseCache();
databaseCache.createCache();
databaseCache.retrieveEntry();
DBCacheStore Java Program
=========================
Note : I am querying an ORACLE VIEW
package com.cache;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import com.tangosol.net.cache.CacheStore;
import com.tangosol.util.Base;
public class DBCacheStore extends Base implements CacheStore {
private String tableName = null;
public DBCacheStore() {
System.out.println("DBCacheStore() called...");
public DBCacheStore(String tableName) {
System.out.println("DBCacheStore(String) called...");
this.tableName = tableName;
private Connection getConnection() throws Exception {
Class.forName("oracle.jdbc.driver.OracleDriver");
String url = "jdbc:oracle:thin:@localhost:1521:xe";
Connection connection = DriverManager.getConnection(url,"system","manager");
return connection;
public void erase(Object arg0) {
System.out.println("erase() called...");
public void eraseAll(Collection arg0) {
System.out.println("eraseAll() called...");
public void store(Object key, Object value) {
System.out.println("store() called...");
public void storeAll(Map arg0) {
System.out.println("storeAll() called...");
public Object load(Object obj) {
System.out.println("load() called...");
Employee employee = null;
Connection con = null;
PreparedStatement pStmt = null;
ResultSet rSet = null;
try {
con = getConnection();
pStmt = con.prepareStatement("select emp_id, emp_name, address from " + tableName + " where emp_id = ?");
pStmt.setInt(1, Integer.parseInt((String)obj));
rSet = pStmt.executeQuery();
if(rSet.next()) {
employee = new Employee();
employee.setEmpId(rSet.getInt("emp_id"));
employee.setEmpName(rSet.getString("emp_name"));
employee.setEmpAddr(rSet.getString("address"));
} catch(Exception e) {
e.printStackTrace();
} finally {
try {
if(rSet != null)
rSet.close();
if(pStmt != null)
pStmt.close();
if(con != null)
con.close();
} catch(Exception e) {
e.printStackTrace();
return employee;
public Map loadAll(Collection arg0) {
System.out.println("loadAll() called...");
Connection con = null;
PreparedStatement pStmt = null;
ResultSet rSet = null;
Employee employee = null;
Map empMap = new HashMap();
try {
con = getConnection();
pStmt = con.prepareStatement("select emp_id, emp_name, address from " + tableName);
rSet = pStmt.executeQuery();
while(rSet.next()) {
employee = new Employee();
employee.setEmpId(rSet.getInt("emp_id"));
employee.setEmpName(rSet.getString("emp_name"));
employee.setEmpAddr(rSet.getString("address"));
empMap.put(employee.getEmpId(), employee);
} catch(Exception e) {
e.printStackTrace();
} finally {
try {
if(rSet != null)
rSet.close();
if(pStmt != null)
pStmt.close();
if(con != null)
con.close();
} catch(Exception e) {
e.printStackTrace();
return empMap;
public Iterator keys() {
Connection con = null;
PreparedStatement pStmt = null;
ResultSet rSet = null;
List returnList = null;
try {
con = getConnection();
pStmt = con.prepareStatement("select emp_id from emp_addr_view");
rSet = pStmt.executeQuery();
returnList = new LinkedList();
while(rSet.next()) {
returnList.add(rSet.getString("empId"));
} catch(Exception e) {
e.printStackTrace();
} finally {
try {
if(rSet != null)
rSet.close();
if(pStmt != null)
pStmt.close();
if(con != null)
con.close();
} catch(Exception e) {
e.printStackTrace();
return returnList.iterator();
cache-server.cmd added lines
============================
set CLASSPATH=%CLASSPATH%;E:\bea\user_projects\workspaces\workSpaceStudio\coh\bin;E:\bea\wlserver_10.0\server\lib\ojdbc14.jar;
Note : E:\bea\user_projects\workspaces\workSpaceStudio\coh\bin in the above line contains compiled class files starting from "com" folder.
"%java_exec%" -server -showversion "%java_opts%" -cp E:\bea\user_projects\workspaces\workSpaceStudio\coh\bin -Dtangosol.coherence.log.level=9 -Dtangosol.coherence.cluster=mycluster -Dtangosol.coherence.clusteraddress=224.0.0.1 -Dtangosol.coherence.clusterport=5455 -Dtangosol.coherence.cacheconfig=E:\bea\user_projects\workspaces\workSpaceStudio\coh\cache-config.xml -cp "%coherence_home%\lib\coherence.jar" com.tangosol.net.DefaultCacheServer %1
JVM arguments for running Client Program : DatabaseCache.java
=======================================
-Dtangosol.coherence.cacheconfig=E:\bea\user_projects\workspaces\workSpaceStudio\coh\cache-config.xml
-Dtangosol.coherence.cluster=mycluster
-Dtangosol.coherence.clusteraddress=224.0.0.1
-Dtangosol.coherence.clusterport=5455
==================================================================================================
Please do let me know if you require further information.
Thanks
Karthik -
Eclipse Plugin Creation - "Plug-in name was unable to load class " error
Hi everybody and happy new year to you all,
i got a little problem again. I have written the first lines of code of my plugin and wanted to test it (run as Eclipse Application). I got the following error-msg, when clickin either on the menu item or toolbar button:
"Could not create action delegate for id: org.eclipse.tui.inpulse.actions.InpulseStart
Reason:
Plug-in org.eclipse.tui.inpulse was unable to load class org.eclipse.tui.inpulse.InpulseStart."
My project has the following properties (of which i read they are important):
Source folder: org.eclipse.tui.inpulse/src
Output folder: org.eclipse.tui.inpulse/bin
Dependencies: org.eclipse.ui, org.eclipse.core.runtime
Extensions: org.eclipse.ui.actionSets
ExtensionsPoints: none
The following is my plugin xml:
<plugin>
<requires>
<import plugin="org.eclipse.core.resources"/>
<import plugin="org.eclipse.ui"/>
</requires>
<runtime>
<library name="Inpulse.jar"/>
</runtime>
<extension
id="org.eclipse.tui.inpulse.InpulseActionSet"
name="org.eclipse.tui.inpulse.InpulseActionSet"
point="org.eclipse.ui.actionSets">
<actionSet
id="org.eclipse.tui.inpulse.InpulseActionSet"
label="Inpulse"
visible="true"
description="The action set for the Eclipse Hello World example">
<menu id="org.eclipse.tui.inpulse.InpulseMenu" label="Inpulse">
<separator name="samples"/>
</menu>
<action id="org.eclipse.tui.inpulse.actions.InpulseStart"
menubarPath="org.eclipse.tui.inpulse.InpulseMenu/samples"
toolbarPath="Normal"
label="Inpulse"
tooltip="Start pattern search."
class="org.eclipse.tui.inpulse.InpulseStart"/>
</actionSet>
</extension>
</plugin>The javafile "InpulseStart.java" is in the "org.eclipse.tui.inpulse" package and has the first line "package org.eclipse.tui.inpulse;". The class "InpulseStart" implements "IWorkbenchWindowActionDelegate".
So the following members are implemented:
public void run(IAction proxyAction){...};
public void selectionChanged(IAction proxyAction, ISelection selection){...};
public void dispose(){...};
//and some additional ones ;-)I really dont know what i do wrong. If you have an idea, what i just miss out or do wrong, id be glad if you helped me out!
CyaAye, you are right, i should/could have posted this somewhere else. I just hoped, that i can get a good answer here, cause ppl helped me out very nice before.
Im sorry if i offended users of this forum...
The "advice" is recognized and i will post somewhere else in case i have a eclipse specific problem. -
Unable to load class from JSTL
Hello. I am using JSTL 1.06 from Jakarta with Tomcat 4.1 on a MacOS X 10.3.9 server. I have a jsp that contains the following:
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<jsp:useBean id="validate" class="mypackage.ValidationBean" scope="request">
<jsp:setProperty name="validate" property="*" />
</jsp:useBean>
<c:if test="${validate.valid == false}">
The input is not valid.
</c:if>In case it matters, my web.xml file starts out like this:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/j2ee/dtds/web-app_2_3.dtd">I have placed jstl.jar and standard.jar in my webapp's WEB-INF/lib directory. However, when I try to load the page, I get this error message:
org.apache.jasper.JasperException: /myjsp.jsp(60,0) Unable to load class if
I know that many people have asked similar questions, but in each case, the response was to put jstl.jar and standard.jar in WEB-INF/lib and make sure that you're using the proper URI for the taglib, and I think I have done those things correctly. Any help would be greatly appreciated!Thanks for your response! In answer to your questions:
The JRE is 1.4.2_09. I can't use 1.5 (5.0) without upgrading the OS.
I haven't tried it on a PC. I might be able to, but it would take me some time to set everything up.
What follows is taken from Tomcat/logs/localhost_log.2006-10-24.txt. If there is another log file I should be looking in, please let me know. Here is the full stack trace from the log:
2006-10-24 16:58:40 Could not load TagLibraryValidator class org.apache.taglibs.standard.tlv.JstlCoreTLV: EXCEPTION: org.apache.taglibs.standard.tlv.JstlCoreTLV
2006-10-24 16:58:40 Could not load TagExtraInfo class org.apache.taglibs.standard.tei.ImportTEI: org.apache.taglibs.standard.tei.ImportTEI
2006-10-24 16:58:40 Could not load TagExtraInfo class org.apache.taglibs.standard.tei.ForEachTEI: org.apache.taglibs.standard.tei.ForEachTEI
2006-10-24 16:58:40 StandardWrapperValve[jsp]: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: /myjsp.jsp(59,0) Unable to load class if
at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:94)
at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:428)
at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:219)
at org.apache.jasper.compiler.Parser.parseCustomTag(Parser.java:712)
at org.apache.jasper.compiler.Parser.parseElements(Parser.java:804)
at org.apache.jasper.compiler.Parser.parse(Parser.java:122)
at org.apache.jasper.compiler.ParserController.parse(ParserController.java:199)
at org.apache.jasper.compiler.ParserController.parse(ParserController.java:153)
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:227)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:369)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:473)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:190)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:553)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2417)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:193)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:781)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:549)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:589)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:666)
at java.lang.Thread.run(Thread.java:552) -
Ever since iTunes 10.5.3 on my Windows 7 x64 box, I've been having serious problems keeping iTunes running:
1) Any time I connect my iPhone or iPad, or any time they attempt to sync over WiFi, I get the 'Unable to load class data from sync services' error. It's worth mention that the iPhone or iPad do actually then proceed to sync correctly, and all media / data is synchronized successfully, as far as I've been able to tell. I've reset sync history, restored the iPhone and iPad, manually moved the SyncServices directory, set both the iPhone and iPad up as new, completely uninstalled iTunes and the mobile device software, re-installed, and *nothing* I do fixes this issue or even seems to impact it. Uninstalling iTunes 10.5.3 and reinstalling iTunes 10.5.2 resolves this error.
2) iTunes 10.5.3 has serious crashing problems on my machine, though I've searched through forums and found a lot of other people with the problem. In my case, sporadically as iTunes access the iTunes store (for example, I can always make it happen by subscribing to the Diggnation podcast and telling it to refresh the podcast), I get a full application crash which generates the following event in the event log:
Faulting application name: iTunes.exe, version: 10.5.3.3, time stamp: 0x4f14cc3d
Faulting module name: KERNELBASE.dll, version: 6.1.7601.17651, time stamp: 0x4e211319
Exception code: 0x80000003
Fault offset: 0x0001280c
Faulting process id: 0x564
Faulting application start time: 0x01cce78789dc009a
Faulting application path: D:\Program Files (x86)\iTunes\iTunes.exe
Faulting module path: C:\Windows\syswow64\KERNELBASE.dll
Report Id: ecc77400-537a-11e1-b809-00248c196007
Again, uninstalling iTunes 10.5.3 and re-installing iTunes 10.5.2 fixes this issue as well, but I really shouldn't have to do that. Is there any actual solution to these problems other than dowgrading to an older version?
Yes, I'm running current malware protection (and my system is clean) and yes, I've already checked any other obvious culprits to make sure I don't just have a corrupt library or file somewhere that's causing it. My Windows 7 install is completely up to date from a Windows Update perspective and also from a driver perspective (even including the motherboard and chipset drivers). I made sure to do a system file integrity check (sfc /scannow) and it confirmed my install of Windows isn't suspect, but beyond all that I was able to reproduce these failures on a completely separate machine running Windows 7 x64, without any of my media library or data on it -- iTunes 10.5.3 just seems to be bad news on Windows 7 x64 for me, even though I know there are definitely people are using it successfully. I don't get any other application crashes for any other applications, and I've never had an issue like this with any previous version of iTunes...
Last but not least, in case it matters, I'm running iOS 5.0.1 on both the iPhone4 and the iPad2. The iPhone4 is the GSM AT&T model and the iPad2 is the CDMA Verizon model.OK, I've given up. Uninstalled iTunes 10.5.3 permanently. It's a shame, 10.5.2 works perfectly but 10.5.3 is a complete and total cluster for me.
Anyone with the same problems who hasn't done this already, just uninstall iTunes and the Apple Mobile Device Service in your Add/Remove Programs, then re-install iTunes 10.5.2. You won't lose your library or any settings or apps, it will just go back to working again.
I wish Apple would acknowledge this so that I'd at least know it would be fixed in the future. -
Overriding eventdistributionpattern-pof throwing unable to load class error
Hi,
We were trying to override the "coherence-eventdistributionpattern-pof-config.xml" with our own event distribution pof due to conflicintg type-id's. We changed type-id's for few of the classes. We changed the type-id for the following classes and left others as such.
com.oracle.coherence.patterns.eventdistribution.EventDistributor$Identifier
com.oracle.coherence.patterns.eventdistribution.events.DistributableEntry
com.oracle.coherence.patterns.eventdistribution.events.DistributableEntryInsertedEvent
com.oracle.coherence.patterns.eventdistribution.events.DistributableEntryUpdatedEvent
com.oracle.coherence.patterns.eventdistribution.events.DistributableEntryRemovedEvent
When i start the coherence server, i get error in loading class "com.oracle.coherence.patterns.eventdistribution.channels.cache.ParallelLocalCacheEventChannelBuilder" for which we did not change the typ-id at all.
Coherence version 3.7.10
Error Trace:
(thread=DistributedCache:DistributedCacheForSequenceGenerators, member=2): PartitionedCache caught an unhandled exception (com.tangosol.util.WrapperException: (Wrapped: error creating class "com.tangosol.io.pof.ConfigurablePofContext") (Wrapped: Unable to load class for user type (Config=test/coherence/grid/obj-pof-config.xml, Type-Id=13402, Class-Name=com.oracle.coherence.patterns.eventdistribution.channels.cache.ParallelLocalCacheEventChannelBuilder)) (Wrapped) com.oracle.coherence.patterns.eventdistribution.channels.cache.ParallelLocalCacheEventChannelBuilder) while exiting.
<Error> (thread=DistributedCache:DistributedCacheForSequenceGenerators, member=2): ClusterService.doServiceLeft: Unknown Service PartitionedCache{Name=DistributedCacheForSequenceGenerators, State=(SERVICE_STOPPED), Not initialized}
(thread=DistributedCache:DistributedCacheForSequenceGenerators, member=2): Service DistributedCacheForSequenceGenerators left the cluster
<Error> (thread=main, member=2): Error while starting service "DistributedCacheForSequenceGenerators": (Wrapped) (Wrapped: error creating class "com.tangosol.io.pof.ConfigurablePofContext") (Wrapped: Unable to load class for user type (Config=test/coherence/grid/obj-pof-config.xml, Type-Id=13402, Class-Name=com.oracle.coherence.patterns.eventdistribution.channels.cache.ParallelLocalCacheEventChannelBuilder)) (Wrapped) java.lang.ClassNotFoundException: com.oracle.coherence.patterns.eventdistribution.channels.cache.ParallelLocalCacheEventChannelBuilder
at com.tangosol.coherence.component.util.Daemon.start(Daemon.CDB:52)
Thanks,File's permissions?
-
I am using the core servlets book and Tomcat 3.2.4 to learn JSP. The first example will not work because of the follwing exception:
org.apache.jasper.compiler.CompileException: E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\jsp\SimpleExample.jsp(14,7) Unable to load class E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\WEB-INF\classes\tags.ExampleTag
I have the following files in the following paths:
ExampleTag.java is in the path E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\WEB-INF\classes\tags.ExampleTag and the code is as follows:
package tags;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import java.io.*;
/** Very simple JSP tag that just inserts a string
* ("Custom tag example...") into the output.
* The actual name of the tag is not defined here;
* that is given by the Tag Library Descriptor (TLD)
* file that is referenced by the taglib directive
* in the JSP file.
* <P>
* Taken from Core Servlets and JavaServer Pages
* from Prentice Hall and Sun Microsystems Press,
* http://www.coreservlets.com/.
* © 2000 Marty Hall; may be freely used or adapted.
public class ExampleTag extends TagSupport {
public int doStartTag() {
try {
JspWriter out = pageContext.getOut();
out.print("Custom tag example " +
"(tags.ExampleTag)");
} catch(IOException ioe) {
System.out.println("Error in ExampleTag: " + ioe);
return(SKIP_BODY);
This is an excert from the Tag Library Descriptor file named csajsp-taglib.tld (the entire file is too long to include). This is in path :E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\jsp
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE taglib
PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN"
"http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd">
<!-- a tag library descriptor -->
<taglib>
<!-- after this the default space is
"http://java.sun.com/j2ee/dtds/jsptaglibrary_1_2.dtd"
-->
<tlibversion>1.0</tlibversion>
<jspversion>1.1</jspversion>
<shortname>csajsp</shortname>
<!-- ** CHANGED FROM "urn" TO "uri" IN TOMCAT 3.1 ** -->
<uri></uri>
<info>
A tag library from Core Servlets and JavaServer Pages,
http://www.coreservlets.com/.
</info>
<!--
<tag>
The name (after prefix) tag will have in JSP code
<name>example</name>
The actual class implementing tag. In
Tomcat 3.1 beta, it MUST be in a package.
<tagclass>tags.ExampleTag</tagclass>
Descriptive information about tag.
<info>Simplest example: inserts one line of output</info>
One of three values describing what goes between
start and end tag.
empty: no body
JSP: body that is evaluated by container normally,
then possibly processed by tag
tagdependent: body is only processed by tag;
JSP in body is not evaluated.
** NOTE: TOMCAT 3.1 FINAL DOES NOT SUPPORT BODYCONTENT **
** THE BETA SUPPORTED IT, AND IT IS PART OF SPEC, BUT... **
<bodycontent>empty</bodycontent>
</tag>
-->
<tag>
<name>example</name>
<tagclass>E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\WEB-INF\classes\tags.ExampleTag</tagclass>
<info>Simplest example: inserts one line of output</info>
<!-- TOMCAT 3.1 DOES NOT SUPPORT BODYCONTENT
<bodycontent>empty</bodycontent> -->
</tag>
and the .jsp file is SimpleExample.jsp and is located in the path E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\jsp\SimpleExample.jsp
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!--
Illustration of very simple JSP custom tag.
Taken from Core Servlets and JavaServer Pages
from Prentice Hall and Sun Microsystems Press,
http://www.coreservlets.com/.
© 2000 Marty Hall; may be freely used or adapted.
-->
<HTML>
<HEAD>
<%@ taglib uri="csajsp-taglib.tld" prefix="csajsp" %>
<TITLE><csajsp:example /></TITLE>
<LINK REL=STYLESHEET
HREF="JSP-Styles.css"
TYPE="text/css">
</HEAD>
<BODY>
<H1><csajsp:example /></H1>
<csajsp:example />
</BODY>
</HTML>
I have tried putting the ExampleTag.java file and the folder that it is in, 'tags', in about every path I can think of and I get the same error. I also tried removing the entire path from the .tld file and just calling for tags.ExampleTag. Still no luck.
I am using win98.
Any assistance will be greatly appreciated.
Thanks,
ScottI compiled the .java and put the .class file in the following path:
E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\WEB-INF\classes\tags
I am getting the error: org.apache.jasper.compiler.CompileException: E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\jsp\SimpleExample.jsp(14,7)
Unable to load class E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\WEB-INF\classes\tags.ExampleTag
Here is another look at the .java file that I compiled:
package tags;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import java.io.*;
/** Very simple JSP tag that just inserts a string
* ("Custom tag example...") into the output.
* The actual name of the tag is not defined here;
* that is given by the Tag Library Descriptor (TLD)
* file that is referenced by the taglib directive
* in the JSP file.
* <P>
* Taken from Core Servlets and JavaServer Pages
* from Prentice Hall and Sun Microsystems Press,
* http://www.coreservlets.com/.
* � 2000 Marty Hall; may be freely used or adapted.
public class ExampleTag extends TagSupport {
public int doStartTag() {
try {
JspWriter out = pageContext.getOut();
out.print("Custom tag example " +
"(tags.ExampleTag)");
} catch(IOException ioe) {
System.out.println("Error in ExampleTag: " + ioe);
return(SKIP_BODY);
Any idea why I am still getting an error? -
Do not seem to be able to backup iPad via iTunes on to my PC.
Message after connecting is "iTunes was unable to load class information from Sync Services, Reconnect or try later"
Have tried that but get the same result.
Remedies I've tried are:
wait and try again
reboot
reload iTunes
NB hp is a relatively new machine and has previously backed up quite happily.
Can anyone assist?RHoodnkt-
Try rebooting the iPad. Hold down both the Home and Sleep buttons for several seconds until the Apple logo appears. Ignore the "Slide to power off" arrow. It takes a minute or two to restart.
Also be sure your iPad battery is not completely discharged.
Fred -
"iTunes was unable to load class data information from sync services"
I own iTunes 10.5 beta 3 64-bit for my 64-bit windows 7 pc, and it gives me this message whenever I try to sync ANY of my devices: "iTunes was unable to load class data information from Sync Services". I own an old iPod video and an iPhone 4 with iOS 5 beta 3. I've tried uninstalling all Apple products, searching through my hard drive and deleting everything Apple, cleaning the registry, EVERYTHING. I've reinstalled at least 4 times now. The problem refuses to become fixed. I've searched every article online possible, and none of the solutions have worked. Is there anything I can do to get my stuff back on to my devices???
In the course of your troubleshooting to date, have you worked through the following document?
iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert -
Unable to compile class for JSP. apache-tomcat-6. What could be wrong?
Hello, I am new to JSP and I am trying a very basic jsp and class file on Windows XP. I get the Unable to compile class for JSP.
Steps that I have done:
javac ch06_01.java , placed the ch06_01.class under
C:\Apps\apache-tomcat-6.0.16\webapps\ch06\WEB-INF\classes
Then grabbed the ch06_02.jsp and placed it under
C:\Apps\apache-tomcat-6.0.16\webapps\ch06\
When I run it (by placing this into Explorer or Firefox URL
http://localhost:8080/ch06/ch06_02.jsp) I get the error further
below. Things I have done and made sure they are in place are:
set up JAVA_HOME to C:\Apps\jdk1.6.0_06
Using CATALINA_BASE: C:\Apps\apache-tomcat-6.0.16
Using CATALINA_HOME: C:\Apps\apache-tomcat-6.0.16
Using CATALINA_TMPDIR: C:\Apps\apache-tomcat-6.0.16\temp
Using JRE_HOME: C:\Apps\jre1.6.0_06
I did a google on the error and I found people saying to place the
tools.jar from the jsk into the lib directory under CATALINA_HOME. But
the examples still don't work. What step could I be missing? Your help is greatly
appreciated.
This is the simple jsp file:
<%@ page import="ch06_01" %>
<HTML>
<HEAD>
<TITLE>Using a JavaBean</TITLE>
</HEAD>
<BODY>
<H1>Using a JavaBean</H1>
<% ch06_01 messager = new ch06_01(); %>
The message is: <%= messager.msg() %>
</BODY>
</HTML>
this is the simple ch6_01 java file:
public class ch06_01
public ch06_01()
public String msg()
return "Hello from JSP!";
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented
it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 6 in the generated java file
The import ch06_01 cannot be resolved
An error occurred at line: 9 in the jsp file: /ch06_02.jsp
ch06_01 cannot be resolved to a type
6: <BODY>
7: <H1>Using a JavaBean</H1>
8:
9: <% ch06_01 messager = new ch06_01(); %>
10:
11: The message is: <%= messager.msg() %>
12:
An error occurred at line: 9 in the jsp file: /ch06_02.jsp
ch06_01 cannot be resolved to a type
6: <BODY>
7: <H1>Using a JavaBean</H1>
8:
9: <% ch06_01 messager = new ch06_01(); %>
10:
11: The message is: <%= messager.msg() %>
12:
Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:423)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:316)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:294)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:281)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
Edited by: indikon1 on Jun 12, 2008 1:18 PM
I just updated the directories of the variables to reflect the current status of my system.What is wrong is that you are using an "old" jsp tutorial :-)
Since Java 1.4, JSPs have been unable to access classes in the "default" package.
What you need to do:
Put the java class ch06_01 in a package.
Steps to do this
- Edit ch06_01 and add the following to the very top of the file (without the quotes): "package mypackage;"
- create a folder "mypackage"
- move ch06_01.java into that folder
- compile that class (now in the mypackage package)
- place ch06_01.class under C:\Apps\apache-tomcat-6.0.16\webapps\ch06\WEB-INF\classes\mypackage
In your jsp:
<%@ page import="mypackage.ch06_01" %>
I would suggest using a more up-to-date tutorial that uses JSTL.
Take a look at this [Apache Tomcat tutorial|http://www.coreservlets.com/Apache-Tomcat-Tutorial/index.html] -
Unable to compil class for jsp
error is
HTTP Status 500 -
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 6 in the generated java file
Syntax error on token ".", Identifier expected after this token
An error occurred at line: 7 in the generated java file
Syntax error on token ".", Identifier expected after this token
An error occurred at line: 9 in the jsp file: /travel/issue.jsp
LibraryStudent cannot be resolved to a type
6: <BODY>
7: <H1>issue books</H1>
8: <CENTER>
9: <jsp:useBean id="student"
10: type="LibraryStudent"
11: scope="session" />
12: student name:
An error occurred at line: 9 in the jsp file: /travel/issue.jsp
LibraryStudent cannot be resolved to a type
6: <BODY>
7: <H1>issue books</H1>
8: <CENTER>
9: <jsp:useBean id="student"
10: type="LibraryStudent"
11: scope="session" />
12: student name:
An error occurred at line: 13 in the jsp file: /travel/issue.jsp
LibraryStudent cannot be resolved to a type
10: type="LibraryStudent"
11: scope="session" />
12: student name:
13: <jsp:getProperty name="student" property="studentName" />
14:
15: book name:
16: <jsp:getProperty name="student" property="bookName" />
An error occurred at line: 16 in the jsp file: /travel/issue.jsp
LibraryStudent cannot be resolved to a type
13: <jsp:getProperty name="student" property="studentName" />
14:
15: book name:
16: <jsp:getProperty name="student" property="bookName" />
17:
18: <jsp:getProperty name="student"
19: property="issueData" />
An error occurred at line: 18 in the jsp file: /travel/issue.jsp
LibraryStudent cannot be resolved to a type
15: book name:
16: <jsp:getProperty name="student" property="bookName" />
17:
18: <jsp:getProperty name="student"
19: property="issueData" />
20: </FORM>
21: </CENTER>LibraryStudent.java is
import java.util.*;
import java.text.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import java.util.*;
public class LibraryStudent {
private String emailAddress, s,password, sname,bname;
private String date,value;
public String getStudentName() {
return(sname);
public void setStudentName(String sname) {
this.sname = sname;
public String getEmailAddress() {
return(emailAddress);
public void setEmailAddress(String emailAddress) {
this.emailAddress = emailAddress;
public String getPassword() {
return(password);
public void setPassword(String password) {
this.password = password;
public String getBookName() {
return(bname);
public void setBookName(String bname) {
this.bname = bname;
public String getDate() {
return(date);
public void setDate(String date) {
this.date = date;
public String getIssueData() //method that create connection withh database
throws ServletException,IOException{
try{
getDate(); //and add a entry in database
getBookName();
getStudentName();
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:db2");
Statement st=con.createStatement();
String sql =
"insert into table1 (bookname,studentname,date) values(bname,sname,date)";
st.executeUpdate(sql);
System.out.println(sql);
String s= "your book has been issued ";
return(s);
catch(Exception e)
e.printStackTrace();
return "failed";
public String getSumbitData()
throws ServletException,IOException{
try
getBookName();
getStudentName();
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:db2");
Statement st=con.createStatement();
String sql =
"delete from db2 where bookname='bname' and studentname=sname";
st.executeUpdate(sql);
System.out.println(sql);
String s="your book has been sumbitted ";
return(s) ;
catch(Exception e)
e.printStackTrace();
return "failed";
public static int findStudent //to validate customer
(String emailAddress,
String password) throws ServletException,IOException{
try
if (emailAddress == null) {
return(0);
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:user");
Statement st=con.createStatement();
String sql="select * from user where name='"+emailAddress+"' and password='"+password+"'";
System.out.println(sql);
ResultSet rs=st.executeQuery(sql);
if(rs.next())
return(1);
else
return(0);
}catch(Exception e)
e.printStackTrace();
return (0);}
to be continued.............and Library.java is import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class Library extends HttpServlet {
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
String emailAddress = request.getParameter("emailAddress");//use to email&pass
String password = request.getParameter("password");//from html page
LibraryStudent student = new LibraryStudent();//Make a student Object
int a=LibraryStudent.findStudent(emailAddress, password);//to validate student
if (a==0) {
gotoPage("/library/accounts.jsp", request, response);
else
student.setStudentName(request.getParameter("sname"));//use to sent other textbox
student.setBookName(request.getParameter("bname"));//data in librarystudent
student.setDate(request.getParameter("date"));//class after validation
HttpSession session = request.getSession(true);
session.putValue("student", student);
//for moving different page
if (request.getParameter("issue") != null) {
gotoPage("/travel/issue.jsp",
request, response);
} else if (request.getParameter("sumbit") != null) {
gotoPage("/travel/sumbit.jsp",
request, response);
} else if (request.getParameter("search") != null) {
gotoPage("/travel/search.jsp",
request, response);
} else if (request.getParameter("account") != null) {
gotoPage("/travel/EditAccounts.jsp",
request, response);
} else {
gotoPage("/travel/IllegalRequest.jsp",
request, response);
private void gotoPage(String address,
HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
RequestDispatcher dispatcher =
getServletContext().getRequestDispatcher(address);
dispatcher.forward(request, response);
} issue.jsp is
<%@page import="java.io.,java.util.,java.sql.*"%>
<HTML>
<HEAD>
<TITLE>issue books</TITLE>
</HEAD>
<BODY>
<H1>issue books</H1>
<CENTER>
<jsp:useBean id="student"
type="LibraryStudent"
scope="session" />
student name:
<jsp:getProperty name="student" property="studentName" />
book name:
<jsp:getProperty name="student" property="bookName" />
<jsp:getProperty name="student"
property="issueData" />
</FORM>
</CENTER>
</BODY>
</HTML> plz solve my problem .i m new to servlet and jsp and i have keen desire to learn this topic
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