Big .jar File - need a loading/info screen

Hi,
my problem is that my midlet takes too long to run, because the jar file is quite big (1,5mb) and has a lot of txt files (around 6.500).
Now you might wonder why i have a lot of files in my jar.
I have a book which is devided into verse. The user search for a particular verse. It takes too long if I have to open a big file and then display a verse, so i made a txt file for each verse which is faster, because the midlet just has to open the little file which contains the verse.
Because of the amount of txt files it takes some time until my midlet starts.
I wanted to ask where there is way to at least tell the user that my midlet is going to start, but that it will take a little bit.
I cannot put this file into the same jar, since loading the jar takes the time.
Is there a way to make a loading info and then open my jar file, which contains the real midlet?
My midlet takes around 45 seconds to open( on my mobile phone), and until then there is no sign whether the midlet is going to start or not. If I do not inform the User, he might think that my midlet won't work and he would press other buttons (like the cancel button).

I think there is no way because :
- if you put it into your jar, it has to be loaded ...
- if you put it outside your jar (JSR 75), the class code has to be executed and so your jar has to be loaded
- everything you will try to execute an application that lauch this one would be weird stuff ...
- note that it sould work on an emulator, but most phones have a jar size limit that is only a few hundreds ko
Regards.

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Required the details of jar files which is loaded in the database

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From 11g onwards, you have
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Dear All,
Oracle version : 10.1.2.0.2
OS: Windows 2003
Client IE version : IE 8
JRE version : JRE 1.6 update 21
JRE security setting : Mixed code (sandboxed vs. trusted) security verification - Disabled
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Add a jar file to Java load path at run time

Hi
I loaded my file successfully , but when I tried to use the driver to connect to the DB , I get
java.lang.ClassNotFoundException: com.ibm.db2.jcc.DB2Driver
Here is my class
import java.net.URL;
import java.io.IOException;
import java.net.URLClassLoader;
import java.net.MalformedURLException;
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import java.sql.DriverManager;
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System.out.println("BEFORE CONNECTION");
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System.out.println("Driver Version - " + conn.getMetaData().getDriverVersion() + "
catch (Exception ex)
System.out.println ("In Exception Block -- Failed.");
ex.printStackTrace (System.out);
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Here are the logging messages
%%%% true
%%%% true
%%%% true
Success! --> com.ibm.db2.jcc.DB2Driver@24442444
BEFORE CONNECTION
In Exception Block -- Failed.
java.sql.SQLException: No suitable driver
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:186)
at com.tdbfg.tdsecurities.kasper.admin.aboutkasper.JarFileLoader1.main(JarFileLoader1.java:61)

kasper123 wrote:
Hi
I loaded my file successfully , but when I tried to use the driver to connect to the DB , I get
java.lang.ClassNotFoundException: com.ibm.db2.jcc.DB2Driver
Here is my class
import java.net.URL;
import java.io.IOException;
import java.net.URLClassLoader;
import java.net.MalformedURLException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.io.*;
public class JarFileLoader1 extends URLClassLoader
public JarFileLoader1 (URL[] urls)
super (urls);
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String urlPath = "jar:file://" + path + "!/";
addURL (new URL (urlPath));
public static void main (String args[])
try
File f = new File("E:\\db2_v9_5 FP5_drivers\\db2jcc.jar");
System.out.println("%%%% " + f.exists());
File f1 = new File("E:\\db2_v9_5 FP5_drivers\\db2jcc_license_cu.jar");
System.out.println("%%%% " + f1.exists());
File f2 = new File("E:\\db2_v9_5 FP5_drivers\\db2jcc4.jar");
System.out.println("%%%% " + f2.exists());
URL urls [] = {};
JarFileLoader1 cl = new JarFileLoader1 (urls);
cl.addFile ("E:\\db2_v9_5 FP5_drivers\\db2jcc.jar");
cl.addFile ("E:\\db2_v9_5 FP5_drivers\\db2jcc_license_cu.jar");
cl.addFile ("E:\\db2_v9_5 FP5_drivers\\db2jcc4.jar");
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String connectString = "jdbc:db2://dummy:34000/dev1";
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System.out.println("after CONNECTION");
System.out.println("Driver Version - " + conn.getMetaData().getDriverVersion() + " ");
catch (Exception ex)
System.out.println ("In Exception Block -- Failed.");
ex.printStackTrace (System.out);
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====================================================
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%%%% true
%%%% true
%%%% true
Success! --> com.ibm.db2.jcc.DB2Driver@24442444
BEFORE CONNECTION
In Exception Block -- Failed.
java.sql.SQLException: No suitable driver
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:186)
at com.tdbfg.tdsecurities.kasper.admin.aboutkasper.JarFileLoader1.main(JarFileLoader1.java:61)
For debugging purposes you could use [DriverManager.getDrivers()|http://download.oracle.com/javase/6/docs/api/java/sql/DriverManager.html#getDrivers%28%29] to get an enumeration of all drivers
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Maybe, with the classloader malarkey you are doing
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total 928
-rwxrwxrwx 1 500 500 465869 Sep 30 2005 jconn3.jar
drwxrwxrwx 2 500 500 4096 Jun 5 11:45 psae
umi-c005-m3:~/TestRem2CCM/SampleProgram 180> ls -l psae/
total 96
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-rwxrwxrwx 1 500 500 3564 Jun 5 11:26 DataModel.java~
-rwxrwxrwx 1 500 500 3564 Jun 5 11:27 DataModel.java
-rwxrwxrwx 1 ramavi11 500 8358 Jun 5 11:27 DataTransfer.class
-rw-rw-rw- 1 500 500 11126 Jun 5 11:25 DataTransfer.java~
-rwxrwxrwx 1 500 500 11127 Jun 5 11:45 DataTransfer.java
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Inside Try
*********Sybase Connection Failed*************
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*********Sybase Connection Failed*************
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umi-c005-m3:~/TestRem2CCM/SampleProgram 183>

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                         isAdded = true;
                         break;
               if (!isAdded)
                    v.addElement(newNode);
          for (int i=0; i<v.size(); i++) {
               FileNode nd = (FileNode)v.elementAt(i);
               IconData idata = new IconData(DirTree.ICON_FOLDER,
                    DirTree.ICON_EXPANDEDFOLDER, nd);
               DefaultMutableTreeNode node = new
                    DefaultMutableTreeNode(idata);
               parent.add(node);
               if (nd.hasSubDirs())
                    node.add(new DefaultMutableTreeNode(
                         new Boolean(true) ));
          return true;
     public boolean hasSubDirs() {
          File[] files = listFiles();
          if (files == null)
               return false;
          for (int k=0; k<files.length; k++) {
               if (files[k].isDirectory())
                    return true;
          return false;
     public int compareTo(FileNode toCompare) {
          return m_file.getName().compareToIgnoreCase(
               toCompare.m_file.getName() );
     protected File[] listFiles() {
          if (!m_file.isDirectory())
               return null;
          try {
               return m_file.listFiles();
          catch (Exception ex) {
               JOptionPane.showMessageDialog(null,
                    "Error reading directory "+m_file.getAbsolutePath(),
                    DirTree.APP_NAME, JOptionPane.WARNING_MESSAGE);
               return null;
}

Gifs placed in a jar file. need help getting them.

I have placed all the gif files in a jar file.
added the gif.jar to the project in the required libraries of project properties.
In the toolbar class I gave this.
JButton btnNew = new JButton(new ImageIcon("new.gif"));
and was expecting it to show the icon but I didn't get it?
Can I place the gifs in a jar file.
What else can I change/check to see the icons?
Thanks.

They are in the same path in the jar file that they were when they were on your disk in the file system. Lets say you have a dir structure
C:\dir1\dir2\dir3\dir4\file.txt
and you cd to dir2:
cd \dir1\dir2
then you jar dir3:
jar cvf jar.jar dir3/*.*
the path to file.txt would still be /dir3/dir4/file.txt inside the jar file.
do a jar tvf jarfile.jar and take a look.

Big .jar File - need a loading/info screen

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