ReadObject() method cant find a serilizable class in serilizable Vector

I have been thinking this problem for three hours,I dont know what to do now
first,my envirment path is :
G:\tomcat2\Tomcat 4.1\webapps\ROOT\WEB-INF\classes;
G:\tomcat2\Tomcat 4.1\webapps\ROOT\WEB-INF\classes\DataBase
"myfriendsCol.dbs"has only a serilizable Vector in it,
"myfriendsCol.dbs" is in DataBase package;
this Vector has some DataStructure(code is below):
package DataBase; //DataStructure in DataBase package
import java.io.*;
public class DataStructure implements Serializable{
String columnID;     //column's name
String columnType;
public DataStructure(String CI,String CT){
    columnID=CI;
    columnType=CT;
public String getColumnID(){
    return columnID;
public String getColumnType(){
    return columnType;
}now,I want use jsp to visit "myfriendsCol.dbs",this jsp file is in G:\tomcat2\Tomcat 4.1\webapps\ROOT
code here:
<%@ page contentType="text/html;charset=GB2312" %>
<%@ page import="DataBase.*" %>
<%@ page import="DataBase.DataStructure" %>
<html>
   <body>
    <% SQLDriver driver=new SQLDriver();
       ResultSet set=driver.executeQuery("desc myfriends");
     %>
    </body>
</html>SQLDriver.class and ResultSet.class in DataBase package together with DataStructure.class and myfriendsCol.dbs
in driver.executeQuery(String sql);code below:
public ResultSet executeQuery(String sql){
   else if(sql.indexOf("desc")!=-1){
     String tableName=sql.substring(sql.indexOf("c")+2,sql.length());//get tablename"myfriends"
     Vector tableInfo=readVector(tableName);//code below
public Vector readVector(String tableName){
    try{
     String filename=tableName+"Col.dbs";     //filename is "myfriendsCol.dbs"
     File path=new File("G:/tomcat2/Tomcat 4.1/webapps/ROOT/WEB-INF/classes/DataBase",filename);
     fileInput=new FileInputStream(path);
     objInput=new ObjectInputStream(fileInput);
     outer=(Vector)objInput.readObject(); //exception occur !
     }catch(ClassNotFoundException ex){System.out.println("classNotFoundException2 is "+ex);}
      catch(IOException ioex){System.out.println("IOException is "+ioex);}
    return outer;
}   tomcat report error:
classNotFoundException2 is java.lang.ClassNotFoundException: DataStructure

did you compile it?
Is it in the right location?
The last message would appear not...

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<15-05-2003 11:31:58 PDT> <Info> <[email protected]:5555> <Starting Server
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nesDomain::ophelia ...>
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C:\WebLogicSPK3\weblogic81\common\bin>echo off
CLASSPATH=C:\WEBLOG~1\JROCKI~1\lib\tools.jar;C:\WEBLOG~1\WEBLOG~1\server\lib\weblogic_sp.jar;C:\WEBLOG~1\WEBLOG~1\server\lib\weblogic.jar;C:\WEBLOG~1\WEBLOG~1\common\eval\pointbase\lib\pbserver44.jar;C:\WEBLOG~1\WEBLOG~1\common\eval\pointbase\lib\pbclient44.jar;C:\WEBLOG~1\JROCKI~1\jre\lib\rt.jar;C:\WEBLOG~1\WEBLOG~1\server\lib\webservices.jar;C:\WEBLOG~1\JROCKI~1\lib\tools.jar;C:\WEBLOG~1\WEBLOG~1\server\lib\weblogic_sp.jar;C:\WEBLOG~1\WEBLOG~1\server\lib\weblogic.jar;
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WebLogic XMLX Module 8.1 SP3 Tue Jun 29 23:11:19 PDT 2004 404973 >
<Jan 20, 2005 11:39:09 AM EST> <Info> <Configuration Management> <BEA-150015> <Connecting to the administration server http://SBREWSTER1:7777 to retrieve the initial configuration.>
<Jan 20, 2005 11:39:11 AM EST> <Error> <Configuration Management> <BEA-150001> <An error occurred while connecting to the admin server to bootstrap through URL: http://SBREWSTER1:7777/wl_management_internal2/Bootstrap, user: weblogic
java.lang.ClassNotFoundException: weblogic.management.mbeans.custom.ApplicationConfiguration
at java.lang.Class.forName(Ljava.lang.String;ZLjava.lang.ClassLoader;)Ljava.lang.Class;(Unknown Source)
at java.io.ObjectInputStream.resolveClass(Ljava.io.ObjectStreamClass;)Ljava.lang.Class;(Unknown Source)
at java.io.ObjectInputStream.readNonProxyDesc(Z)Ljava.io.ObjectStreamClass;(Unknown Source)
at java.io.ObjectInputStream.readClassDesc(Z)Ljava.io.ObjectStreamClass;(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject()Ljava.lang.Object;(Unknown Source)
at java.util.ArrayList.readObject(Ljava.io.ObjectInputStream;)V(ArrayList.java:547)
at java.lang.LangAccessImpl.readObject(Ljava.lang.Class;Ljava.lang.Object;Ljava.io.ObjectInputStream;)V(Unknown Source)
at java.io.ObjectStreamClass.invokeReadObject(Ljava.lang.Object;Ljava.io.ObjectInputStream;)V(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Ljava.lang.Object;Ljava.io.ObjectStreamClass;)V(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.defaultReadFields(Ljava.lang.Object;Ljava.io.ObjectStreamClass;)V(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Ljava.lang.Object;Ljava.io.ObjectStreamClass;)V(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject()Ljava.lang.Object;(Unknown Source)
at weblogic.management.ManagedServerAdmin.retrieveMBeansFromAdminServer(Ljava.lang.String;)Ljava.util.List;(ManagedServerAdmin.java:543)
at weblogic.management.ManagedServerAdmin.initialize()V(ManagedServerAdmin.java:150)
at weblogic.t3.srvr.T3Srvr.initializeHere()V(T3Srvr.java:771)
at weblogic.t3.srvr.T3Srvr.initialize()V(T3Srvr.java:670)
at weblogic.t3.srvr.T3Srvr.run([Ljava.lang.String;)I(T3Srvr.java:344)
at weblogic.Server.main([Ljava.lang.String;)V(Server.java:32)
>
The WebLogic Server did not start up properly.
Exception raised: 'weblogic.management.configuration.ConfigurationException: [Configuration Management:150001]An error occurred while connecting to the admin server to bootstrap through URL: http://SBREWSTER1:7777/wl_management_internal2/Bo
otstrap, user: weblogic
java.lang.ClassNotFoundException: weblogic.management.mbeans.custom.ApplicationConfiguration
at java.lang.Class.forName(Ljava.lang.String;ZLjava.lang.ClassLoader;)Ljava.lang.Class;(Unknown Source)
at java.io.ObjectInputStream.resolveClass(Ljava.io.ObjectStreamClass;)Ljava.lang.Class;(Unknown Source)
at java.io.ObjectInputStream.readNonProxyDesc(Z)Ljava.io.ObjectStreamClass;(Unknown Source)
at java.io.ObjectInputStream.readClassDesc(Z)Ljava.io.ObjectStreamClass;(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject()Ljava.lang.Object;(Unknown Source)
at java.util.ArrayList.readObject(Ljava.io.ObjectInputStream;)V(ArrayList.java:547)
at java.lang.LangAccessImpl.readObject(Ljava.lang.Class;Ljava.lang.Object;Ljava.io.ObjectInputStream;)V(Unknown Source)
at java.io.ObjectStreamClass.invokeReadObject(Ljava.lang.Object;Ljava.io.ObjectInputStream;)V(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Ljava.lang.Object;Ljava.io.ObjectStreamClass;)V(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.defaultReadFields(Ljava.lang.Object;Ljava.io.ObjectStreamClass;)V(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Ljava.lang.Object;Ljava.io.ObjectStreamClass;)V(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject()Ljava.lang.Object;(Unknown Source)
at weblogic.management.ManagedServerAdmin.retrieveMBeansFromAdminServer(Ljava.lang.String;)Ljava.util.List;(ManagedServerAdmin.java:543)
at weblogic.management.ManagedServerAdmin.initialize()V(ManagedServerAdmin.java:150)
at weblogic.t3.srvr.T3Srvr.initializeHere()V(T3Srvr.java:771)
at weblogic.t3.srvr.T3Srvr.initialize()V(T3Srvr.java:670)
at weblogic.t3.srvr.T3Srvr.run([Ljava.lang.String;)I(T3Srvr.java:344)
at weblogic.Server.main([Ljava.lang.String;)V(Server.java:32)
Reason: weblogic.management.configuration.ConfigurationException: [Configuration Management:150001]An error occurred while connecting to the admin server to bootstrap through URL: http://SBREWSTER1:7777/wl_management_internal2/Bootstrap, us
er: weblogic
java.lang.ClassNotFoundException: weblogic.management.mbeans.custom.ApplicationConfiguration
at java.lang.Class.forName(Ljava.lang.String;ZLjava.lang.ClassLoader;)Ljava.lang.Class;(Unknown Source)
at java.io.ObjectInputStream.resolveClass(Ljava.io.ObjectStreamClass;)Ljava.lang.Class;(Unknown Source)
at java.io.ObjectInputStream.readNonProxyDesc(Z)Ljava.io.ObjectStreamClass;(Unknown Source)
at java.io.ObjectInputStream.readClassDesc(Z)Ljava.io.ObjectStreamClass;(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject()Ljava.lang.Object;(Unknown Source)
at java.util.ArrayList.readObject(Ljava.io.ObjectInputStream;)V(ArrayList.java:547)
at java.lang.LangAccessImpl.readObject(Ljava.lang.Class;Ljava.lang.Object;Ljava.io.ObjectInputStream;)V(Unknown Source)
at java.io.ObjectStreamClass.invokeReadObject(Ljava.lang.Object;Ljava.io.ObjectInputStream;)V(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Ljava.lang.Object;Ljava.io.ObjectStreamClass;)V(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.defaultReadFields(Ljava.lang.Object;Ljava.io.ObjectStreamClass;)V(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Ljava.lang.Object;Ljava.io.ObjectStreamClass;)V(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Unknown Source)
at java.io.ObjectInputStream.readObject()Ljava.lang.Object;(Unknown Source)
at weblogic.management.ManagedServerAdmin.retrieveMBeansFromAdminServer(Ljava.lang.String;)Ljava.util.List;(ManagedServerAdmin.java:543)
at weblogic.management.ManagedServerAdmin.initialize()V(ManagedServerAdmin.java:150)
at weblogic.t3.srvr.T3Srvr.initializeHere()V(T3Srvr.java:771)
at weblogic.t3.srvr.T3Srvr.initialize()V(T3Srvr.java:670)
at weblogic.t3.srvr.T3Srvr.run([Ljava.lang.String;)I(T3Srvr.java:344)
at weblogic.Server.main([Ljava.lang.String;)V(Server.java:32)
C:\WebLogicSPK3\weblogic81\common\bin>

Ive looked for 2 days, i cant find this swing component

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MetalScrollBarUI and create methods which return the
size of the scroll buttons, the track, and the
thumb.great idea, but will this work for all look and feels? the more abstract ScrollBarUI does not seem to offer generic methods for getting the track value.
also if i cant find a way to do it for all L&Fs, where can i find the WindowsScrollBarUI class? id rather subclass that then the metal, but only as a last resort. thanks

Problem with JDK 6 update 5 - Error Message says cant find java compiler

Hi i am a complete beginner to programming and i am having trouble with the latest java development kit. jdk 6 update 5.
The problem is i have set the path and the program cant find my compiler.
I have installed the latest java development kit 6 update 5 on my windows xp machine.
I have created a simple program as shown below:
class Hello
public static void main(String[] args)
System.out.println("Hello from java");
saved the file to my desktop as Hello.java
I have set the path variable like so:
Go to control panel then click system icon then click advanced tab then click environmental variables.
Now in system variables the path is shown as this - %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\Program Files\Java\jdk1.6.0_05\bin;C:\Program Files\QuickTime\QTSystem\;c:\Program Files\Microsoft SQL Server\90\Tools\binn\
I then add this to the end;C:\Program Files\Java\jdk1.6.0_05\bin
This is the location to the things like compiler, applet viewer etc.
No in the command prompt i type javac Hello.java and i get this error message:
C:\> javac Hello.java
javac: file not found: Hello.java
Usage: javac <options> <source files>
use -help for a list of possible options
The jdk is installed properly im sure but it can find my compiler.
What mistake have i made in setting the path because im guessing that is related to the problem?
Could someone out there please help me?
Thank You
Rafeeq

saved the file to my desktop as Hello.java
C:\> javac Hello.javaC:\ is not the desktop!
The jdk is installed properly im sure but it can find my compiler.Of course it can! It just can't find the file you are trying to compile, because that's not in the root directory.
I suggest you make a directory C:\java and save your source file there rather than on the desktop. In the command prompt, enter cd \java to make it the current working directory and then enter javac Hello.java.
@Pravin: The question is about compiling, not running. CLASSPATH has nothing to do with this problem.
db

Find the implementation class of a Business object

HI Gurus,
Is there any path in SPRO from where we can find the implementation class of a BOL object?
For an example, I am working with BuilHeader. The backend table for BUL Header which will be updated while modifiyng BuilHeader is BUT000. So how can we find the back end database table name or implementation class where the table BUT000 is updated?

Hi Suchandra Bose
the flow will go like this.
1) the data in the BOL structures moved to Genil Implementation Class which is defined in the below SPRO path
CRM->CRM Cross application components->Generic Interaction Layer/Object Layer->Basic Settings in this corresponding each and every component one Genil class and its Model information in the form of tables will be maintained.
2) Take for example BP component , for BP component CL_CRM_BUIL is the Generic Interaction layer class , with in the generic interaction layer class methods (Create_objects, MODIFY_OBJECTS, GET_OBJECTS) you will find a code snippet to get the * Handler class* , this handler class will inturn get the Interaction Layer classes to reach the API ,
get object handler
      lv_cl_object =
         me->handler_factory->get_obj_handler(
                                  iv_object_name = iv_object_name ).
3) This handler method will query the table CRMC_OBJIMP_BUIL to get the relevant handler class depending on which functionality you are implementing.
Thanks & Regards
Raj

Could not find the main class: oracle.ide.boot.Launcher. Program will exit

Hi,
I have installed Oracle11g_win64_11gR1, Database and Client.
The issue is unable to invoke "sqldeveloper", getting the following error message. Could you please help ?
FYI. I have already downloaded and installed installed JRE and JDK.
ie. C:\Program Files (x86)\Java\jre6\ and C:\Program Files\Java\jdk1.6.0_24, still did not work.
C:\Users\oracle>java -version
java version "1.6.0_24"
Java(TM) SE Runtime Environment (build 1.6.0_24-b07)
Java HotSpot(TM) 64-Bit Server VM (build 19.1-b02, mixed mode)
Let me know, if you need more information. Here is the error message.
Error Message
=========
(1) if I invoke sqldeveloper, directly from the location " C:\app\oracle\product\11.1.0\db_1\sqldeveloper\sqldeveloper\bin " using explorer, I do get error message
"Unable to find a java Virtual Machine.
To point to a location of java Virtual machine please refer to the Oracle9i JDeveloper Install Guide ( jdev/install.html)"
(2) if I invoke sqldeveloper, directly from the locationC:\app\oracle\product\11.1.0\client_1\sqldeveloper, it prompts me to enter "full path for java.exe".
When I enter full path and continue, still it continue to prompt and ask the same input.
(3) if I invoke sqldeveloper from from command prompt using the batch file "sqldeveloper.bat"
C:\Users\oracle>C:\app\oracle\product\11.1.0\client_1\sqldeveloper\sqldeveloper\
bin\sqldeveloper.bat
C:\Users\oracle>java -Xmx512M -Xverify:none -XX:JavaPriority10_To_OSPriority=10
-XX:JavaPriority9_To_OSPriority=9 -Doracle.ide.util.AddinPolicyUtils.OVERRIDE_F
LAG=true -Dsun.java2d.ddoffscreen=false -Dwindows.shell.font.languages= -Dide.co
nf="sqldeveloper.conf" -Dide.home.dir.name=.sqldeveloper -classpath ..\..\ide\l
ib\ide-boot.jar;..\..\jdev\lib\xmleditor.jar;..\..\ide\lib\oicons.jar;..\..\..\j
dbc\lib\ojdbc5.jar;..\..\jlib\jewt4.jar;..\..\jlib\share.jar;..\..\sqldeveloper\
lib\jle2.jar oracle.ide.boot.Launcher
Exception in thread "main" java.lang.NoClassDefFoundError: oracle/ide/boot/Launc
her
Caused by: java.lang.ClassNotFoundException: oracle.ide.boot.Launcher
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: oracle.ide.boot.Launcher. Program will exit.
OS
==============
MS Windows 7 Home Premium
sqldeveloper.conf
===================
SetSkipJ2SDKCheck true
IncludeConfFile ../../jdev/bin/ide.conf
AddVMOption -Dapple.laf.useScreenMenuBar=true
AddVMOption -Dcom.apple.mrj.application.apple.menu.about.name="SQL_Developer"
AddVMOption -Dcom.apple.mrj.application.growbox.intrudes=false
AddVMOption -Dcom.apple.macos.smallTabs=true
AddVMOption -Doracle.ide.util.AddinPolicyUtils.OVERRIDE_FLAG=true
AddJavaLibFile ../../jdev/lib/xmleditor.jar
AddJavaLibFile ../../ide/lib/oicons.jar
AddJavaLibFile ../../jlib/jewt4.jar
AddJavaLibFile ../../jlib/share.jar
AddJavaLibFile ../ide/jlib/xmlef.jar
AddJavaLibFile ../../sqldeveloper/lib/jle2.jar
AddJavaLibFile ../../sqldeveloper/lib/oracle.dbtools.logging.jar
AddVMOption -Dsun.java2d.ddoffscreen=false
AddVMOption -Dwindows.shell.font.languages=
IncludeConfFile sqldeveloper-nondebug.conf
SetJavaHome C:\Program Files\Java\jdk1.6.0_24
Edited by: sivapara on Feb 16, 2011 1:08 PM

I was able to resolve this issue by performing following.
1. Go to the location where sqldeveloperW.exe is being executed from.
2. You will find a file sqldeveloper.conf in that location. Edit this file and change the value of IncludeConfFile to point to actual place. For me following were old and new values.
OLD (Wrong) : IncludeConfFile ../../jdev/bin/ide.conf
NEW (Correct) : IncludeConfFile ../../ide/bin/ide.conf
After making above change in the sqldeveloper.conf file. Save and close it. Restart SQLDeveloper. You will not get the error anymore.
Thanks
Ravi

Executable JAR file: Could not find the main class.

Hello,
I have a problem with making an executable JAR file.
I have written a JAVA program that consists of five different classes of which User.java is the main class and I have saved a text document with Main-Class: User and a blank line after that.
If I try:
jar cmf MainClass.txt User.jar User.class Beheerder.class Operator.class Manager.class MaakVisueelSchema.class
it makes a executable jar file which actually works! :)
But when the Operator class trys to open the MaakVisueelSchema class the screen stays blank.
I can run MaakVisueelSchema with java MaakVisueelSchema.
So I tried to make an executable JAR that consists only of MaakVisueelSchema, the same way as I did for User:
Main-Class: MaakVisueelSchema
jar cmf MainClass.txt MaakVisueelSchema.jar MaakVisueelSchema.class
Then I get the error message:
Could not find the main class. Program will exit.
from the Java Virtual Machine Launcher.
The big difference between MaakVisueelSchema and the other classes is that MaakVisueelSchema contains a PaintComponent method and an ComponentListener. Is it possible that one of those creates the error?
Can anyone help me with this problem?
Thanks in advance!
Bye!

Yes,
I tried:
jar xvf MaakVisueelSchema.jar
and it returns:
META-INF/
META-INF/MANIFEST.MF
MaakVisueelSchema.classN/G. You need to manually create a manifest file in a text editor, have it point to your main class, and enter it in your jar command as an argument.

ReadObject() method cant find a serilizable class in serilizable Vector

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