PLZZZZZ hlp me don't know any thing in java and need a favor

[ccoldfire]

hi u all
i use this java application called "yamee" as a yahoo messenger in my mobile and recently the application stopped working cause yahoo changed the host that messnger should connect to (i know the new host) so as a newbie i unzipped the .jar file and start to search in the .class files to see which one has the host information and i found it and convert it to .java and made the change but i cant get it back into .class file and that what i need from u plz

this is the code in the java file that i need to convert into a class file

import java.io.*;
import javax.microedition.io.*;

public final class r
{

private r(String s, int i)
{
e = false;
c = s;
d = i;
e = true;
}

public r()
{
this("cn.scs.msg.yahoo.com", 5050);
e = false;
}

public final void a()
throws IOException, ap
{
if(e)
{
f = (StreamConnection)Connector.open("socket://" + c + ":" + d);
} else
{
String as[] = {
"cn.scs.msg.yahoo.com", "cn.scsa.msg.yahoo.com"
};
int ai[] = {
5050, 23, 25, 80
};
int i = 0;
int j = 0;
while(f == null)
try
{
c = as[j];
d = ai[i];
f = (StreamConnection)Connector.open("socket://" + c + ":" + d);
}
catch(SecurityException _ex)
{
throw new ap("Connection failed!\nPlease check the connection settings");
}
catch(Exception _ex)
{
f = null;
if(++i >= ai.length)
{
j++;
i = 0;
if(j >= as.length)
throw new ap("Sorry, there was a problem in connecting");
}
}
}
g = new k(f.openInputStream());
h = f.openDataOutputStream();
}

public final void b()
throws IOException, InterruptedIOException
{
if(f != null)
f.close();
f = null;
}

public final void a(ab ab1, int i, long l, long l1)
throws IOException
{
byte abyte0[] = ab1.a();
synchronized(h)
{
h.write(a, 0, 4);
h.write(b, 0, 4);
h.writeShort(abyte0.length & 0xffff);
h.writeShort(i & 0xffff);
h.writeInt((int)(l & -1L));
h.writeInt((int)(l1 & -1L));
h.write(abyte0, 0, abyte0.length);
h.flush();
}
}

public final az c()
throws IOException, InterruptedIOException
{
return g.a();
}

public static String[] a(az az1)
{
String as[] = new String[3];
for(int i = 0; i < as.length; i++)
{
String s;
if((s = az1.a("59", i)) == null)
break;
if(s.indexOf(";") >= 0)
s = s.substring(0, s.indexOf(";"));
switch(s.charAt(0))
{
case 89: // 'Y'
as[0] = "Y=" + s.substring(2);
break;

case 84: // 'T'
as[1] = "T=" + s.substring(2);
break;

case 67: // 'C'
as[2] = "C=" + s.substring(2);
break;

default:
System.err.println("What c: " + s);
break;
}
}

return as;
}

public static final byte a[] = {
89, 77, 83, 71
};
public static final byte b[] = {
0, 13, 0, 0
};
public String c;
public int d;
private boolean e;
private StreamConnection f;
private k g;
private DataOutputStream h;

}

if u need the orginal .class file or even the whole jar file just tell me

thank u

[Fubarable]

Why go through all this? Besides being difficult, what you are trying to do may not even be legal. Instead why not either reinstall the program (if they have an update) or contact the developer?

[ccoldfire]

Why go through all this? Besides being difficult, it may not even be legal. Instead why not either reinstall the program or contact the developer?

i know am hacking the application,but i cant wait until the developer launch a new version,it could be weeks or months how should i know

anyway , what do u think??is it doable?

[serjant]

ooops the java source is opfuscated

[Fubarable]

I've never done it myself but have heard that reverse engineering a program is difficult for even an experienced programmer. Can it be done? possibly. Would it be easy to do? nope. Is it legal? doubtful.

[Fubarable]

ooops the java source is opfuscated

Hey serjant, long time no see! I hope all is going well on your side of the world.

[ccoldfire]

ooops the java source is opfuscated

i generated the code using "DJ Java Decompiler "

[serjant]

Fubarable:
Yes I currently working on some huge Java Web projects - one of them is commercial one and two of them are on the sourceforge.net, I hope soon I will post about one very interesting in the Java Announcements section. But thanks that you remember me, it makes feeling good. Thanks
As for the obfuscation , i corrected some source once while it was obfuscates, but it was really hard and required much debugging.

[serjant]

i generated the code using "DJ Java Decompiler "

Yes, it is a decompiler, I know it. But the code was obfuscated before reaching your hands, you need to have the real source before the obfuscation and then you can a real problem and how the code was really written

[ccoldfire]

Yes, it is a decompiler, I know it. But the code was obfuscated before reaching your hands, you need to have the real source before the obfuscation and then you can a real problem and how the code was really written

oh i got it ,sorry new to the term obfuscated,so it's a dead end.
thanks any way