Networking :: URL Connection Error On HTTPs

Feb 16, 2013

I have noticed an error, that makes sometimes troubles, when downloading jars from https addresses, when there are many jars to download..

Best example is by opening Javas on Java version checker. [URL] ....

I get also following log...

network: Connecting https://www.java.com/jsp_utils/jreverification.jar with proxy=DIRECT
network: Connecting http://www.java.com:443/ with proxy=DIRECT
network: Connecting https://www.java.com/jsp_utils/jreverification.jar with cookie "JSESSIONID=22ABBA2BE9B5789629C276AC35BDF969; s_cc=true;

Even if the address is https, java try to access via http protocol on port 443, and that leads sometimes to problems..

I have noticed this, when I have used URLConnection(HttpURLConnection) for my self, as soon Java sends http link on https address, the jar gets sometimes not loaded, and i get error about missing class that get called..

On http addres it is not so bad, since same protocol is used, but evidently, that is evil for https..

As you see, that happens already when loading Jar by Applet Starter and at all, it happens each time on any URLConnection

###############################
Java Plug-in 10.13.2.20
Using JRE version 1.7.0_13-b20 Java HotSpot(TM) Client VM
User home directory = X:Usersadmin
----------------------------------------------------
c: clear console window
f: finalize objects on finalization queue
g: garbage collect

[Code] .....

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Securing Client Server HTTPs Connection

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I have a https connection from Client to Server and a malware in client. The malware modifies the message and compromises its integrity. I am using a proxy to check the Integrity of the message after the malware has changed the message and before sending it over the internet to the server.

Now, How can I check the Integrity of the message (Sure that it has not been modified by any Man in the Middle) for the second half of my communication channel(Which is from Client to the Server over the internet).

I see few conventional approaches of CRC or Checksum will work. But I am looking for some non traditional or upcoming approaches.

Ideally SSL Data shouldn't be able to be decrypted by any MIM. But my assumption is that any Protocol is subjected to attack and compromised in real world and few recent studies are proving that https is breakable. Thus, I am trying to perform a What if analysis? On the client side, lets say malware is not more powerful than just modifies the transaction amount and destination account number in a typical online Baking transaction.

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But, today, "IO Error:The Network Adapter could not establish the connection" appeared when I tried to run my program again.

I changed //myhost into 127.0.0.1, it worked again.(Before I did this, I checked lsnrctl and regedit and firewall....., no difference)

Here is my question:

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[Code]...

Now, I have got a comment saying I should get the database connection from connection pool. And one more issue is that I have used the function System.getProperty("user.name") to get the username which i have logged in. But this code will be run on Unix which will not support this function. Any function where I can get the windows username. There is a function getUserPrincipal(), but this function returns a NULL. How to resolve this.

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And this is code

package main;
import java.io.BufferedReader;
import java.io.InputStreamReader;

[Code]....

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in my web.xml I declared a resource under the block

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<?xml version="1.0" encoding="UTF-8"?>
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[code]....

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[Code] .....

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[Code] ....

So my question is,

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[Code] ......

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Code is as below:

import java.net.*;
import java.net.Proxy.Type;
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{

[Code]...

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[Code] .....

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. . . . .
try
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[Code] ....

And here’s what the exception looks like:
. . . . . .
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                at java.net.SocketInputStream.read(SocketInputStream.java:150)
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[Code] ....           
 
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[Code] ...

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...

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