Specs and variables: Windows NT 4 SP 6 Tomcat v4.1.18 JDK v1.4.0_02 CATALINA_OPTS=-Xms128M -Xmx1024M
At random intervals I get this error on console, it seems that the socket for port 80 is suddenly closed and the server stops responding. What steps can I take to get more information about why this error is occuring? SEVERE: Endpoint ServerSocket[addr=0.0.0.0/0.0.0.0,port=0,localport=80] ignored exception: java.net.SocketException: socket closed java.net.SocketException: socket closed at java.net.PlainSocketImpl.socketAccept(Native Method) at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:353) at java.net.ServerSocket.implAccept(ServerSocket.java:439) at java.net.ServerSocket.accept(ServerSocket.java:410) at org.apache.tomcat.util.net.DefaultServerSocketFactory.acceptSocket(De faultServerSocketFactory.java:107) at org.apache.tomcat.util.net.PoolTcpEndpoint.acceptSocket(PoolTcpEndpoi nt.java:341) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java :497) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP ool.java:530) at java.lang.Thread.run(Thread.java:536) 8.1.2003 03:36:47 org.apache.tomcat.util.log.CommonLogHandler log SEVERE: Endpoint null shutdown due to exception: java.net.SocketException: Opera tion now in progress: create java.net.SocketException: Operation now in progress: create at java.net.ServerSocket.createImpl(ServerSocket.java:245) at java.net.ServerSocket.getImpl(ServerSocket.java:203) at java.net.ServerSocket.bind(ServerSocket.java:309) at java.net.ServerSocket.<init>(ServerSocket.java:183) at java.net.ServerSocket.<init>(ServerSocket.java:139) at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(De faultServerSocketFactory.java:96) at org.apache.tomcat.util.net.PoolTcpEndpoint.acceptSocket(PoolTcpEndpoi nt.java:389) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java :497) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP ool.java:530) at java.lang.Thread.run(Thread.java:536) 8.1.2003 03:36:47 org.apache.tomcat.util.log.CommonLogHandler log SEVERE: Caught exception trying to unlock accept. java.net.SocketException: Operation now in progress: create at java.net.Socket.createImpl(Socket.java:313) at java.net.Socket.<init>(Socket.java:286) at java.net.Socket.<init>(Socket.java:119) at org.apache.tomcat.util.net.PoolTcpEndpoint.stopEndpoint(PoolTcpEndpoi nt.java:309) at org.apache.tomcat.util.net.PoolTcpEndpoint.acceptSocket(PoolTcpEndpoi nt.java:400) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java :497) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP ool.java:530) at java.lang.Thread.run(Thread.java:536) 8.1.2003 03:36:47 org.apache.tomcat.util.log.CommonLogHandler log SEVERE: Caught exception trying to close socket. java.lang.NullPointerException at org.apache.tomcat.util.net.PoolTcpEndpoint.stopEndpoint(PoolTcpEndpoi nt.java:321) at org.apache.tomcat.util.net.PoolTcpEndpoint.acceptSocket(PoolTcpEndpoi nt.java:400) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java :497) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP ool.java:530) at java.lang.Thread.run(Thread.java:536)