How to use Tomcat 8 in Eclipse

Question

EDIT 2014-02-07  Eclipse Luna is here  and support for Tomcat 8 is included in the bundled WTP     Happy days   Tomcat 8 is still in development  but you can get it here  Now there is a RC version on the main Apache Tomcat page  Update 2 27 14  8 is released now  and adapters built for WTP  just not integrated into eclipse bundles yet  Soon   In Eclipse Kepler though  there is no supported adapter in the add server list for Tomcat 8  the Tomcat 7 adapter doesn t work  and it doesn t look like there s a new extension for it to download in the  Install new Extension  dialog   Is my only option to get it  Tomcat 8  running locally outside of Eclipse and maybe hook a remote debugger into it for stepping through code  Will that even work for Eclipse Kepler   Tomcat 8  IntelliJ IDEA 12 couldn t do it in the 30 minutes of time I put into that path   If you re wondering why I m trying to do this at all  I m playing around with Spring 4 0 0 M1 and 4 0 0 M2 WebSocket stuff  They  per Rossen Stoyanchev s Spring 4 0 blog post and examples  use JSR-356  which is implemented in Tomcat 8  theoretically to be back-ported at some point to Tomcat 7   An answer to the broader question of  How can I easily get a development environment going for Spring 4 WebSocket support   would be nice  but it would also still be nice to know how to plug in unsupported web servers to Eclipse   Cheers  E    Update 8 7 13 - Rossen Stoyanchev updated the Spring 4 0 0 M2 blog and added some jpda wisdom and shared that yeah  he s using remote debugging      That said  it s not very hard to debug with Tomcat 8 inside Eclipse  Just change the last line in bin startup sh to be  note the addition of  jpda      exec   PRGDIR    EXECUTABLE  jpda start            Inside Eclipse create a remote debugging configuration for localhost port 80  launch it after starting Tomcat  and you can put breakpoints in the source code    Thanks Rossen     Update 9 29 13 - Eclipse Kepler SR1 just arrived  but alas  No WTP support for Tomcat 8  Tomcat 8 is up to RC3     Updates 12 5 13    Blog url fix  Tomcat 8 up to RC5  Bug to track WTP fix in Eclipse to support Tomcat 8 HERE  IntelliJ IDEA new version 13 says it now supports Tomcat 8  Haven t tried yet personally

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If you have untarred your own version of tomcat v8 with a root user into a custom directory (linux) then the default permissions on the TOMCATROOT/lib directory do not allow normal user access.

Eclipse will not be able to see the catalina.jar to check the version. So no amount of fiddling aorund with the server.properties will help!

just add chmod u+x lib/ to allow normal user access to the libs.

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UPDATE  Eclipse Mars EE and later have native support for Tomcat8  Use this only if you have an earlier version of eclipse     The latest version of Eclipse still does not support Tomcat 8  but you can add the new version of WTP and Tomcat 8 support will be added natively  To do this    Download the latest version of Eclipse for Java EE Go to the WTP downloads page  select the latest version  currently 3 6   and download the zip  under Traditional Zip Files   Web App Developers   Here s the current link  Copy the all of the files in features and plugins directories of the downloaded WTP into the corresponding Eclipse directories in your Eclipse folder  overwriting the existing files     Start Eclipse and you should have a Tomcat 8 option available when you go to deploy

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I have tried below and it worked for me    In eclipse go to Help- Eclipse Marketplace Type JST extension in search box  Install JSP Adapters for Luna  Restart the eclispe You should be able to see Tocmat 8 server while adding new server

User · Answer

Downloaded Eclipse Luna and installed WTP using http   download eclipse org webtools repository luna  Downloaded Tomcat 8 and configured new server in Eclipse  I am able to setup tomcat 8 now in Eclipse luna

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The only thing the eclipse plugin is checking is the tomcat version inside   catalina jar  org apache catalina util ServerInfo properties   I replaced the properties file with the one in tomcat7 and that fixed the issue for eclipse  In order to be able to deploy the spring-websockets sample app you need to edit the following file in eclipse     settings org eclipse wst common project facet core xml   And change the web version to 2 5   lt installed facet  jst web  version  2 5   gt

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This should be a comment under the accepted answer  but I don t have 50 reputation yet   At http   download eclipse org webtools downloads   I first selected Released 3 5 2  which like others did not work for me  Then I picked Integration 3 6 0  and saw Tomcat 8 for New Project of Dynamic Web Project

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I follow Jason s step  but not works   And then I find the WTP Update site http   download eclipse org webtools updates    Help - gt  Install new software - gt  Add  gt  WTP http   download eclipse org webtools updates  - gt  OK  Then Help - gt  Check for update  just works  I don t know whether Jason s affect this

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In addition to  Jason s answer I had to do a bit more to get my app to run    Download  amp  unzip Eclipse IDE for Java EE Developers  Note the EE edition  Download  amp  unzip Eclipse s Web Tools Platform Stable  Milestone  3 6  Overwrite the two folders in the Eclipse IDE  with the WTP folder s   features  amp  plugins folders  Download and unzip Tomcat 8 In eclipse new -  other -  server -  Tomcat 8  choose the unzipped location  If you get a 404  click the Tomcat 8 in the Servers view -  Server Locations -  Change to Use Tomcat installation  and change the Deploy path  to webapps    If you can t edit this  delete any published webapps

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Alternatively we can use eclipse update site  Help -  Install New Features -  Add Site  urls below  -  Select desired Features    For Luna  http   download eclipse org webtools repository luna  For Kepler  http   download eclipse org webtools repository kepler  For Helios  http   download eclipse org webtools repository helios  For older version  http   download eclipse org webtools updates

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To add the Tomcat 9 0  Tomcat build from the trunk  as a server in Eclipse   Update the ServerInfo properties file properties as below   server info Apache Tomcat  VERSION  server number  VERSION NUMBER  server built  VERSION BUILT    server info Apache Tomcat 7 0 57 server number 7 0 57 0 server built Nov 3 2014 08 39 16 UTC   Build the tomcat server from trunk and add the server as tomcat7 instance in Eclipse   ServerInfo properties file location    tomcat java org apache catalina util ServerInfo properties

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The latest version of Springsource STS  3 6  supports Tomcat 8  It is based on eclipse Luna 4 4 and supports Java 8  Have at it

[eclipse] How to use Tomcat 8 in Eclipse?

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