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

Question

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>"

8080 and 8090 ports were not found
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.

So if you got this when running Tomcat and there was already something listening to port 8005, either it wasn't Tomcat or Tomcat was already running and you should have shut it down. — user207421
– user207421, Commented Mar 27, 2020 at 9:31

FYP ACM · Accepted Answer · 2020-04-07 12:50:23Z

1

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.

answered Apr 7, 2020 at 12:50

FYP ACM

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1 Comment

Ayman Arif Over a year ago

Yes. That was the issue. Some windows program was listening from that port, I had to change my prot configurations.

rob2universe · Accepted Answer · 2020-04-03 09:07:51Z

1

a) restart the system and check if port is still blocked

b) check running services via "services" menu to identify which program could be running a server

c) stop service or change Camunda server configuration to use other ports e.g. server.xml <Connector port="8080"...

edited Apr 3, 2020 at 9:07

answered Apr 3, 2020 at 2:21

rob2universe

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