Starting of Tomcat failed from Netbeans

I have problem with starting Apache Tomcat 6 from Netbeans IDE 7.4 (on 7.3 version I had the same troubles. Other people mentioned that this problem exist also in other versions, like 8.0 etc).

What did I do:

  • remove installed Tomcat 7 (without removing it, I had the same difficulties)
  • add new server, downloaded from Apache Tomcat website (version apache-tomcat-6.0.39, with other version I had the same problems)
  • my server location: D:\apache-tomcat-netbeans
  • system variable CATALINA_HOME: D:\apache-tomcat-netbeans
  • system variable JAVA HOME: C:\Program Files\Java\jdk1.7.0_51\
  • tomcat user: I let netbeans creating new user, called tomcat with password tomcat. When I open {tomcat}\conf\tomcat-users.xml file after adding server, there is info about my user:

    < user password="tomcat" roles="manager,admin" username="tomcat"/ >

When I now click "start", I got "Starting of Tomcat failed".

My suspicions:

  • I'm working on Windows 7 as administrator, so I think this is not a problem with privileges to files.
  • Disabling proxy didn't helps.
  • Logs: There is only one log file created: localhost.2014-03-06.log and it is totally empty.
  • Starting Netbeans "as administrator" didn't helps.
  • From command line everything is all right, I have no problems with starting in normal or debug mode (catalina.bat jpda start or startup.bat)


It affects at least NetBeans versions 7.4 through 8.0.2. It was first reported from version 8.0 and fixed in NetBeans 8.1. It would have had the problem for any tomcat version (confirmed for versions 7.0.56 through 8.0.28).

Specifics are described as Netbeans bug #248182.

This problem is also related to postings mentioning the following error output:

'*' is not recognized as an internal or external command, operable program or batch file.

For a tomcat installed from the zip file, I fixed it by changing the catalina.bat file in the tomcat bin directory.

Find the bellow configuration in your catalina.bat file.



And change it as in below by removing the double quotes:



Now save your changes, and start your tomcat from within NetBeans.

This affects:

  • All versions of Tomcat starting from 8.5.3 onwards.
  • All versions of Netbeans up to 8.1 (It is fixed in Netbeans 8.2).

This is because Netbeans does not 'see' that tomcat is started, although it started just fine.

I have filed Bug #262749 with NetBeans.


In the server.xml file, in the Connector element for HTTP/1.1, add the following attribute: server="Apache-Coyote/1.1".



The reason for that is that prior to 8.5.3, the default was to set the server header as Apache-Coyote/1.1, while since 8.5.3 this default has now been changed to blank. Apparently Netbeans checks on this header.

Maybe in the future we can expect a fix in netbeans addressing this issue.

I was able to trace it back to a change in documentation.

Tomcat 8.5:

"Overrides the Server header for the http response. If set, the value for this attribute overrides any Server header set by a web application. If not set, any value specified by the application is used. If the application does not specify a value then no Server header is set."

Tomcat 8.0:

"Overrides the Server header for the http response. If set, the value for this attribute overrides the Tomcat default and any Server header set by a web application. If not set, any value specified by the application is used. If the application does not specify a value then Apache-Coyote/1.1 is used. Unless you are paranoid, you won't need this feature."

That explains the need for explicitly adding the server attribute since version 8.5.3.

Also, it is very likely, that problem with proxy settings.

Any who didn't overcome Tomact starting problrem, - try in NetBeans choose No Proxy in the Tools -> Options -> General tab.

It helped me.

For NetBeans to be able to interact with tomcat, it needs the user as setup in netbeans to be properly configured in the tomcat-users.xml file. NetBeans can do so automatically.

That is, within the tomcat-users.xml, which you can find in ${CATALINA_HOME}/conf, or ${CATALINA_BASE}/conf,

  1. make sure that the user (as chosen in netbeans) is added the script-manager role

Example, change

<user password="tomcat" roles="manager,admin" username="tomcat"/>


<user password="tomcat" roles="manager-script,manager,admin" username="tomcat"/>
  1. make sure that the manager-script role is declared


<role rolename="manager-script"/>

Actually the netbeans online-help incorrectly states:

Username - Specifies the user name that the IDE uses to log into the server's manager application. The user must be associated with the manager role. The first time the IDE started the Tomcat Web Server, such as through the Start/Stop menu action or by executing a web component from the IDE, the IDE adds an admin user with a randomly-generated password to the tomcat-base-path/conf/tomcat-users.xml file. (Right-click the Tomcat Web server instance node in the Services window and select Properties. In the Properties dialog box, the Base Directory property points to the base-dir directory.) The admin user entry in the tomcat-users.xml file looks similar to the following: <user username="idea" password="woiehh" roles="manager"/>

The role should be manager-script, and not manager.

For a more complete tomcat-users.xml file:

<?xml version='1.0' encoding='utf-8'?>
  <role rolename="manager-script"/>
  <role rolename="manager-gui"/>
  <user password="tomcat" roles="manager-script" username="tomcat"/>
  <user password="pass" roles="manager-gui" username="me"/>

There is another nice posting on why am I getting the deployment error?

I had the same problem but none of the answers above worked. The solution for me was to restore the Manager web application that is bundled with Tomcat.

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