Error message: Cannot be validated

I am a university lecturer and my university has an agreement with Adobe that allows academics to download Adobe suite for teaching purposes but when I enter the serial number I was given I get an error message saying that it cannot be validated. Any reason why this is?

Hi Anodeenzyme,
This can be a network issue
Please navigate to
C:\windows\system32\drivers\etc
Open a Finder window. Choose Go > Go To Folder.
Type "/etc" (make sure that you're is logged in as an administrator).
Select the hosts file and open it.
Look for any entries that refer to activate.adobe.com and delete them. For example, 127.0.0.1 activate.adobe.com and delete it.
Save the file and close it.
Regards

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D:\Apache Tomcat 4.0\webapps\examples\WEB-INF\classes\cal>javac
ConnectionPool.java
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symbol : class PooledConnection
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symbol : class PooledConnection
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package cal;
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public void close() {
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return password;
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con = DriverManager.getConnection(url,
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for ( int x = 0; x < pool.size(); x++ ) {
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if ( pcon.getConnection() == con ) {
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// Set its inuse attribute to false, which
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pcon.setInUse(false);
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// Find an available connection
public synchronized Connection getConnection()
throws Exception {
PooledConnection pcon = null;
// find a connection not in use
for ( int x = 0; x < pool.size(); x++ ) {
pcon = (PooledConnection)pool.elementAt(x);
// Check to see if the Connection is in use
if ( pcon.inUse() == false ) {
// Mark it as in use
pcon.setInUse(true);
// return the JDBC Connection stored in the
// PooledConnection object
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// Create a new JDBC Connection
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// Mark the connection as in use
pcon.setInUse(true);
// Add the new PooledConnection object to the pool
pool.addElement(pcon);
catch (Exception e) {
System.err.println(e.getMessage());
throw new Exception(e.getMessage());
// return the new Connection
return pcon.getConnection();
// When shutting down the pool, you need to first empty it.
public synchronized void emptyPool() {
// Iterate over the entire pool closing the
// JDBC Connections.
for ( int x = 0; x < pool.size(); x++ ) {
System.err.println("Closing JDBC Connection " + x);
PooledConnection pcon =
(PooledConnection)pool.elementAt(x);
// If the PooledConnection is not in use, close it
if ( pcon.inUse() == false ) {
pcon.close();
else {
// If it is still in use, sleep for 30 seconds and
// force close.
try {
java.lang.Thread.sleep(30000);
pcon.close();
catch (InterruptedException ie) {
System.err.println(ie.getMessage());
I am using Sun JDK Version 1.3.0_02" and Apache/Tomcat 4.0. Both the calling and the called class are in the same directory.
Any help would be greatly appreciated.
tnx..
addi

Is ConnectionPool in this "cal" package as well as PooledConnection? From the directory you are compiling from it appears that it is. If it is, then you are compiling it incorrectly. To compile ConnectionPool (and PooledConnection similarly), you must change the current directory to the one that contains cal and type
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