java net BindException Address already in use JVM Bind null 80

Question

I am getting binding exception while starting the Tomcat server   I tried to kill the process that which is using  80  as couple of processes are using it   Getting error  while killing process id is  0       ERROR  The process with PID 0 could not be terminated  Reason  This is   critical system process  Taskkill cannot end this process    How to fix this   I don t need to use another port to run the tomcat server

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I faced this problem while working in a spring project with tomcat      Address already in use  JVM Bind      To resolve the issue I ran a shutdown bat file in tomcat bin folder

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Make sure  webapps ROOT file is there and it has all the icons  WEB-INF  and index jsp is in the folder    When you startup Tomcat  it will run this code in  lt Tomcat-Directory gt  conf web xml directory     lt welcome-file-list gt      lt welcome-file gt index jsp lt  welcome-file gt   lt  welcome-file-list gt    The location of index jsp is in  lt Tomcat-Directory gt  webapps ROOT index jsp  Also  try running tomcat from the  bin directory using   catalina sh start instead of   startup sh  For some reason    startup sh isn t as reliable

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The error       Tomcat  java net BindException  Address already in use  JVM Bind    80   suggests that the port 80 is already in use  You may either     Try searching for that process and stop it OR Make your tomcat to run on different  free  port   See also  Deployment error Starting of Tomcat failed  the server port 8080 is already in use

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I completely forgot that I had previously installed another version of Apache Tomcat  which was causing this problem  So  just try uninstalling the previous version  Hope it helps

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C  Program Files  x86  Apache Software Foundation Tomcat 7 0 conf  Your Port ID in Server xml File in Source folder is 8080  change the Port Number to 8081   etc

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PID 0 is the System Idle Process  which is surely not listening to port 80  How did you check which process was using the port   You can use  netstat  nao   findstr  80    to find the PID and check what process it is

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The error      java net BindException  Address already in use  JVM Bind  80   means that another application is listening on port 80   You can check which process is using this port by lsof command  e g  sudo lsof -i 80  Then stop or kill it   If won t help finding application running on the same port  the common mistake is the Tomcat misconfiguration   For example by default Tomcat listens on port 8005 for SHUTDOWN command and if you set another Connector to listen on the same port  you ll get port conflict   So please double check in server xml whether these ports are different    lt Server port  8005  shutdown  SHUTDOWN  gt       lt Connector port  8983  protocol  HTTP 1 1

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Setting Tomcat to listen to port 80 is WRONG   for development the 8080 is a good port to use  For production use  just set up an apache that shall forward your requests to your tomcat  Here is a how to

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I do a goofy mistake and It take me 2 hour to solve It I mentioned it here for other persons may be help them The mistake was I enable ssl connector and changed both https and http ports to same number

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Use the following command to find if your tomcat port is already in use   netstat -a -b  netstat -a -o   findstr  port   For example  netstat -a -o   findstr  8080   Exception  java net BindException  Address already in use  JVM Bind 80  means that port 80 is configured by your Tomcat server and it is already used by some other application running on your computer  Please quit Skype if open or change the default port in Skype or other application s port to something other than 80  Or change the tomcat port to something else than 80 e g  8080 or 9090  in the server xml file under the config folder of your tomcat installation directory   Exception  java net BindException  Address already in use  JVM Bind  means you din t stop the tomcat server properly and you are trying to start the server again  In Eclipse  the solution for me was to remove the project from the servers tab and right click and run the project as Run on server  This added the project back to the Tomcat 7 and I din t get the BindException error  This was due to closing eclipse the last time you used without stopping the Tomcat server

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I deleted my server and added it back  IT happened because I shut down the eclipse manually via task manager and it did not shut down the tomcat

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If you have some process listening on port 8080 then you can always configure tomcat to listen on a different port  To change the listener port by editing your server xml located under tomcat server conf directory   Search for Connector port  8080  in server xml and change the port number to some other port

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I came across same issue  I was getting error  Unable to open debugger port  127 0 0 1 63936   java net BindException  Address already in use  JVM Bind   I tried above all option but any how its not resolved  Solution which worked for me is  I started the server and then stopped and again started in debug mode  then the server got started in debug mode

[java] java.net.BindException: Address already in use: JVM_Bind <null>:80

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