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Evan Adams (evan@eng.sun.com) reported: I started up a second instance of NetBeans to see how it behaved. When coming it up complain about a port being in use (fine) but it also printed out an exception trace on the console related to the same problem: java.net.BindException: Address in use: JVM_Bind at java.net.PlainSocketImpl.socketBind(Native Method) at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:397) at java.net.ServerSocket.<init>(ServerSocket.java:170) at java.net.ServerSocket.<init>(ServerSocket.java:121) at org.apache.tomcat.net.DefaultServerSocketFactory.createSocket(Default ServerSocketFactory.java:97) at org.apache.tomcat.service.PoolTcpEndpoint.startEndpoint(PoolTcpEndpoi nt.java:235) at org.apache.tomcat.service.PoolTcpConnector.start(PoolTcpConnector.jav a:187) at org.apache.tomcat.core.ContextManager.start(ContextManager.java:479) at org.netbeans.modules.httpserver.HttpServerModule$1.run(HttpServerModu le.java:106) It seems like this exception need not be printed as it will only worry the user.
*** This issue has been marked as a duplicate of 10943 ***