At 7:06 PM -0500 04/23/2001, Marc Saegesser wrote:
>I was just about to call the vote for the final release of Tomcat 3.2.2
...
While you're at it, could you ensure that tomcat closes its server
socket instead of relying on the system to do it when the VM exits?
This is a long-standing problem that interferes with running tomcat
inside IBM's VisualAge, or (equivalently) building java GUIs for
starting and stopping the server.
Here's what I've been using in a GUI for starting and stopping tomcat.
private void doStart(String[] args)
{
org.apache.tomcat.startup.Tomcat.main(args);
}
private void doStop()
{
String[] stopArgs = new String[] { "-stop" };
org.apache.tomcat.startup.Tomcat.main(stopArgs);
}
The buttons work the first time they're used. The start buttons fails
the second times (either by the same GUI or by any other means during
the same VisualAge session) because the server socket is still being
held open by the lack of an explicit close. The only way I've found
to clear the problem is to exit VisualAge altogether; a SLOOOWWWW
process.
I've seen the same problem in my own applications. The fix was to be
SURE that the ServerSocket is closed EXPLICITLY rather than leaving
it to the operating system to do when the process exits.
This session console log may help locate the problem.
2001-04-24 08:51:00 - ContextManager: Adding context Ctx( /examples )
2001-04-24 08:51:01 - ContextManager: Adding context Ctx( /admin )
2001-04-24 08:51:01 - Ctx( /svlt ): Set debug to 9
2001-04-24 08:51:01 - ContextManager: Adding context Ctx( /svlt )
Starting tomcat. Check logs/tomcat.log for error messages
2001-04-24 08:51:01 - ContextManager: Adding context Ctx( )
2001-04-24 08:51:01 - ContextManager: Adding context Ctx( /test )
2001-04-24 08:51:01 - ContextManager: Adding context Ctx( /digiprop )
2001-04-24 08:51:02 - Ctx( /svlt ): XmlReader - init /svlt /digiprop
2001-04-24 08:51:02 - Ctx( /svlt ): Reading /digiprop/WEB-INF/web.xml
2001-04-24 08:51:02 - Ctx( /svlt ): Loading -2147483646 jsp
2001-04-24 08:51:02 - Ctx( /svlt ): Loading 1 flush
2001-04-24 08:51:03 - Ctx( /svlt ): Loading 1 page
2001-04-24 08:51:03 - Ctx( /svlt ): Loading 1 login
FATAL:java.net.SocketException: Address already in use
java.net.SocketException: Address already in use
java.lang.Throwable(java.lang.String)
java.lang.Exception(java.lang.String)
java.io.IOException(java.lang.String)
java.net.SocketException(java.lang.String)
void java.net.PlainSocketImpl.socketBind(java.net.InetAddress, int)
void java.net.PlainSocketImpl.bind(java.net.InetAddress, int)
java.net.ServerSocket(int, int, java.net.InetAddress)
java.net.ServerSocket(int, int)
java.net.ServerSocket
org.apache.tomcat.net.DefaultServerSocketFactory.createSocket(int,
int)
void org.apache.tomcat.service.PoolTcpEndpoint.startEndpoint()
void org.apache.tomcat.service.PoolTcpConnector.start()
void org.apache.tomcat.core.ContextManager.start()
void org.apache.tomcat.startup.Tomcat.execute(java.lang.String [])
void org.apache.tomcat.startup.Tomcat.main(java.lang.String [])
----> void digiprop.site.TomcatView.doStart()
void digiprop.site.TomcatView.connEtoC2(java.awt.event.ActionEvent)
void
digiprop.site.TomcatView$IvjEventHandler.actionPerformed(java.awt.event.ActionEvent)
void java.awt.Button.processActionEvent(java.awt.event.ActionEvent)
void java.awt.Button.processEvent(java.awt.AWTEvent)
void java.awt.Component.dispatchEventImpl(java.awt.AWTEvent)
void java.awt.Component.dispatchEvent(java.awt.AWTEvent)
void java.awt.EventDispatchThread.run()
--
---
Brad Cox, Ph.D.; [EMAIL PROTECTED]
Phone: 703 361 4751 Cell: 703 919-9623
http://virtualschool.edu
