The problem is that Tomcat is not starting, if I run the startup.bat I got this errors:

SEVERE: Failed to initialize end point associated with ProtocolHandler ["http-bio-9443"]

The weird thing is that if I change the port on the server.xml I get the same error but now pointing to the new port, i.e. if I set this port 9995, I got this error:

SEVERE: Failed to initialize end point associated with ProtocolHandler ["http-bio-9445"]

Every time I change it it shows the new port on the error,

Tomcat needs to open several ports when starting up. Make sure that the ports defined in server.xml are all available. To check whether port 9443 is already opened, run command

netstat -aon | findstr 9443

If it is already occupied, the PID can lead you to the process that uses the port.

Another possibility is antivirus/firewall which I mentioned before, and it is at times difficult to check. Some antivirus/firewall will just silently block it if a threat is suspected. In my experience, if the error comes straightaway, the port may be used already; and if the error comes after a few (say 5) seconds, the process may be blocked.

Hi Cesar,
If the hints from Donald do not help, please contact Tomcat support or open new PMR for that.

After several configurations I'm still getting this error:

org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-9088"]
org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-9488"]
org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-9018"]
SEVERE: Failed to initialize end point associated with ProtocolHandler ["http-bio-9448"]

I check the 3 ports using the command netstat -aon | findstr xxxx, and all of them is used by java.exe but only when the Tomcat console is opened, after closing it and recheck the ports with the same command, the ports are free, I'm really confused, because if I change the ports I get the same error but now with the new ports.

Maybe I'm missing something, not sure if I need to perform some other steps before trying to start the server, because I just download the zip and run the server.startup.bat script.

Hi,

I already killed all java process, reboot the computer, etc... the problem is that the Tomcat console is a java process, so when the console is closed the ports are free, but when I run the startup script the console is opened and it still show this messages:

org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-9088"]
org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-9488"]
org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-9018"]
SEVERE: Failed to initialize end point associated with ProtocolHandler ["http-bio-9448"]

I scan the port 9448 using the command netstat -aon | findstr 9448, and the Tomcat console is using it, I guess is because it's trying to do something on that port, but it is only used by the Tomcat console, so, I'm not sure why it is failing

The second port in the list is the secure port. It's possible that the configuration for it is not correct. You can try the following.
In the server.xml file, replace
               sslProtocol="${jazz.connector.sslProtocol}"
               algorithm="${jazz.connector.algorithm}"
with
               sslProtocol="TLS"
               algorithm="IbmX509"
These two parameters are supposed to be set in the server.startup script.
Or, use the default Tomcat configuration (commented out, just above the <Connector port="9443"> section in the server.xml file - you just comment out the IBM one and un-comment the Tomcat one.