java.net.BindException: Address already in use: JVM_Bind, in spite of no running port

I am trying to run Camunda BPM tool with embedded Apache tomcat. I get to the landing page, but then suddenly the get an JVM_Bind exception:

27-Mar-2020 13:11:57.277 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
27-Mar-2020 13:06:02.145 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
27-Mar-2020 13:06:02.153 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 45110 ms
27-Mar-2020 13:06:02.155 SEVERE [main] org.apache.catalina.core.StandardServer.await StandardServer.await: create[localhost:8005]: 
 java.net.BindException: Address already in use: JVM_Bind
    at java.net.DualStackPlainSocketImpl.bind0(Native Method)
    at java.net.DualStackPlainSocketImpl.socketBind(DualStackPlainSocketImpl.java:106)
    at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:382)
    at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:190)
    at java.net.ServerSocket.bind(ServerSocket.java:375)
    at java.net.ServerSocket.<init>(ServerSocket.java:237)
    at org.apache.catalina.core.StandardServer.await(StandardServer.java:422)
    at org.apache.catalina.startup.Catalina.await(Catalina.java:770)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:716)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)

I ran netstat -ano | find "<port-number>"

1. 8080 and 8090 ports were not found
2. 8005 was found. 8005 port is the shutdown port configured in <tomcat>/conf/server.xml

Update:

C:\Users>taskkill /PID 4 /F                                                                                             
ERROR: The process with PID 4 could not be terminated.                                                                  
Reason: Access is denied.    

Probably there is a system process listening at that port. If that is the case, you need to change your port in server.xml file.