java.net.BindException: Address already in use: JVM_Bind:xxxx

[Raffaele <r....@prismasw.it>]

Hi all,

I know there are other threads about this problem, but no one ever said the
solution!
I hope to find more accurate help because this problem is very tedious.

In particular, I have the exception (see the end of post) when I start
consecutively tomcat Embedded, for example:
- start tomcat embedded
- do some test
- close tomcat embedded calling Embedded.stop() as suggested in all articles
found on the net.
- start again tomcat embedded --> Exception

The only two solutions I found were:
1) wait some time the try again...
2) change ecah time the port

Don't tell me please to see if that port is already used by other
processes....The problem exists with all ports I try and no one process uses
the same port as tomcat.

Thanks in advance,
Best regards.
Raffaele

Exception in thread "main" java.lang.RuntimeException: LifecycleException: 
Protocol handler initialization failed: java.net.BindException: Address
already in use: JVM_Bind:8080
	at webrainbow.services.WebService.<init>(WebService.java:93)
	at
webrainbow.services.WebServiceMainTest.<init>(WebServiceMainTest.java:25)
	at webrainbow.services.WebServiceMainTest.main(WebServiceMainTest.java:37)
Caused by: LifecycleException:  Protocol handler initialization failed:
java.net.BindException: Address already in use: JVM_Bind:8080
	at org.apache.catalina.connector.Connector.initialize(Connector.java:1019)
	at org.apache.catalina.startup.Embedded.start(Embedded.java:827)
	at webrainbow.services.WebService.startTomcat(WebService.java:210)
	at webrainbow.services.WebService.<init>(WebService.java:91)
	... 2 more
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Re: java.net.BindException: Address already in use: JVM_Bind:xxxx

[Kirst Martin Wolfgang <MK...@PortolanCS.com>]

Hi,

[... consecutively restart tomcat ...]
> The only two solutions I found were:
> 1) wait some time the try again...
> 2) change ecah time the port

In my ears it looks like you do not "unbind" the port.
I know, ist typical for Windows, when you kill a process,
which uses a port in an unclean way, than windows will block
this port for ~30 to 60 seconds. Only after this time,
anyone is able to bind to this port again.

I only can suggest two things:
 - check, that when you .stop() tomcat the port is cleanly unbind/closed
 - when you bind a socket you can set an option like "SO_REUSEADDR",
   but this is more like a bad hack.
   With this option set, multiple sockets can be opened and if your
   process is the only one, all  goes fine.
   Sorry, I don't know where to set this option in java.

Greetings 
 Martin

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