The IP/port information is already in the log file. The log line before the quoted  exception provides the protocol (AJP, HTTP, etc) , Connector (NIO, NIO2, etc), Address (if any) and port.

+1 to fixing the error message.

There is no obvious link between log lines on different lines, just because a port appears on previous line, it means nothing.

Please fix this.

Similar undescriptive error case in the same class:

31-Jul-2023 13:38:12.493 SEVERE [main] org.apache.catalina.util.LifecycleBase.handleSubClassException Failed to initialize component [Connector[HTTP/1.1-8443]]
	org.apache.catalina.LifecycleException: Protocol handler initialization failed
		at org.apache.catalina.connector.Connector.initInternal(Connector.java:1049)
		at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
		at org.apache.catalina.core.StandardService.initInternal(StandardService.java:558)
		at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
		at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:1045)
		at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
		at org.apache.catalina.startup.Catalina.load(Catalina.java:724)
		at org.apache.catalina.startup.Catalina.load(Catalina.java:746)
		at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
		at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
		at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
		at java.base/java.lang.reflect.Method.invoke(Method.java:568)
		at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:302)
		at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:472)
	Caused by: java.net.BindException: Cannot assign requested address
		at java.base/sun.nio.ch.Net.bind0(Native Method)
		at java.base/sun.nio.ch.Net.bind(Net.java:555)
		at java.base/sun.nio.ch.ServerSocketChannelImpl.netBind(ServerSocketChannelImpl.java:337)
		at java.base/sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:294)
		at org.apache.tomcat.util.net.NioEndpoint.initServerSocket(NioEndpoint.java:277)
		at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:241)
		at org.apache.tomcat.util.net.AbstractEndpoint.bindWithCleanup(AbstractEndpoint.java:1193)
		at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:1206)
		at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:597)
		at org.apache.coyote.http11.AbstractHttp11Protocol.init(AbstractHttp11Protocol.java:80)
		at org.apache.catalina.connector.Connector.initInternal(Connector.java:1046)
		... 13 more

We have multiple connectors listening on port 8443 in our server.xml, each of them with a different "address" field.

As Ralf Hauser suggested, it would be beneficial to cite this address verbatimely, the corresponding IP address.
In case the address field is an IP address to begin with, the reverse DNS lookup  would be very helpful.
If this all could be cited in "[Connector[HTTP/1.1-8443]]" (and in the exception message as soon as "NioEndpoint" gets hold of it (java.net.BindException: Address already in use).

also, it would be useful to be clearer on the protocol:

The current error message says "HTTP/1.1".

In reality it is most likely "https" as the connector has the attributes

scheme="https"
secure="true" 
SSLEnabled="true"
...
keystoreFile="/usr/share/tomcat9/conf/sec/.keystore"
keystorePass="*****"
certificateKeystoreType="PKCS12"
...
sslProtocol="TLSv1.2"
sslEnabledProtocols="TLSv1.2+TLSv1.3"
useServerCipherSuitesOrder="true"
ciphers="TLS_AE...

Connector log messages now use the same name format as the protocol handler (e.g. "http-nio-127.0.0.1-8080") to reference the Connector.

Fixed in:
- 11.0.x for 11.0.0-10 onwards
- 10.1.x for 10.1.12 onwards
-  9.0.x for  9.0.79 onwards
-  8.5.x for  8.5.92 onwards