<html><head><META http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>Apache Tomcat 6.0 (6.0.39) - Building Tomcat</title><meta name="author" content="Remy Maucherat"><style type="text/css" media="print">
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<ul><li><a href="#Introduction">Introduction</a></li><li><a href="#Download_a_Java_Development_Kit_(JDK)_release_(version_5)">Download a Java Development Kit (JDK) release (version 5)</a></li><li><a href="#Install_Apache_Ant_1.6.5_or_later">Install Apache Ant 1.6.5 or later</a></li><li><a href="#Checkout_or_obtain_the_source_code_for_Tomcat_6.0">Checkout or obtain the source code for Tomcat 6.0</a></li><li><a href="#Building_Tomcat">Building Tomcat</a></li><li><a href="#Building_with_Eclipse">Building with Eclipse</a></li><li><a href="#Building_with_other_IDEs">Building with other IDEs</a></li></ul>
</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Introduction"><strong>Introduction</strong></a></font></td></tr><tr><td><blockquote>

<p>
Building Apache Tomcat from SVN is very easy, and is the first step to contributing to
Tomcat. The following is a step by step TODO list.
</p>

</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Download a Java Development Kit (JDK) release (version 5)"><!--()--></a><a name="Download_a_Java_Development_Kit_(JDK)_release_(version_5)"><strong>Download a Java Development Kit (JDK) release (version 5)</strong></a></font></td></tr><tr><td><blockquote>

<p>
The JDK can be downloaded following the "Previous Releases" link from
<a href="http://www.oracle.com/technetwork/java/javase/downloads/index.html">here</a>.
</p>

<p>
<b>IMPORTANT</b>: Set an environment variable JAVA_HOME to the pathname of the 
directory into which you installed the JDK release.
</p>

</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Install Apache Ant 1.6.5 or later"><!--()--></a><a name="Install_Apache_Ant_1.6.5_or_later"><strong>Install Apache Ant 1.6.5 or later</strong></a></font></td></tr><tr><td><blockquote>

<p>
Download a binary distribution of Ant 1.6.5 or later from 
<a href="http://ant.apache.org/bindownload.cgi">here</a>.
</p>

<p>
Unpack the binary distribution into a convenient location so that the
Ant release resides in its own directory (conventionally named
"apache-ant-1.6.x").  For the purposes of the remainder of this document,
the symbolic name "${ant.home}" is used to refer to the full pathname of
 the release directory.
</p>

<p>
Create an ANT_HOME environment variable to point the directory ${ant.home}, 
and modify the PATH environment variable to include directory
"${ant.home}/bin" in its list.  This makes the "ant" command line script
available, which will be used to actually perform the build.
</p>

</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Checkout or obtain the source code for Tomcat 6.0"><!--()--></a><a name="Checkout_or_obtain_the_source_code_for_Tomcat_6.0"><strong>Checkout or obtain the source code for Tomcat 6.0</strong></a></font></td></tr><tr><td><blockquote>

  <p>
  Tomcat 6.0 SVN repository URL:
  <a href="http://svn.apache.org/repos/asf/tomcat/tc6.0.x/trunk/">http://svn.apache.org/repos/asf/tomcat/tc6.0.x/trunk/</a>
  </p>

  <p>
  Download a source package from:
  <a href="http://tomcat.apache.org/download-60.cgi">http://tomcat.apache.org/download-60.cgi</a>
  </p>

  <p>
  Checkout the source using SVN, selecting a tag for released version or
  trunk for the current development code, or download and unpack a
  source package. The location where the source has been
  placed will be referred as <code>${tomcat.source}</code>.
  </p>

</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Building Tomcat"><!--()--></a><a name="Building_Tomcat"><strong>Building Tomcat</strong></a></font></td></tr><tr><td><blockquote>

<p>
Use the following commands:
<code><br>
    cd ${tomcat.source}<br>
    ant download<br>
    ant<br>
</code>
</p>

<p>
<b>WARNING:</b> Running "ant download" command will download libraries required
  to build Tomcat to the <code>/usr/share/java</code> directory by default.
  On a typical Linux or MacOX system, an ordinary user
  will not have access to write to this directory, and, even if you do,
  it may not be appropriate for you to write there. On Windows
  this usually corresponds to the <code>C:\usr\share\java</code> directory,
  unless Cygwin is used. Read below to learn how to customize the directory
  used to download the binaries.
</p>

<p>
<b>NOTE:</b> Users accessing the Internet through a proxy must use a properties
  file to indicate to Ant the proxy configuration. Read below.
</p>

<p>
The build can be controlled by creating a ${tomcat.source}/build.properties
  file, and adding the following content to it:
<code><br>
    # ----- Proxy setup -----<br>
    # Uncomment if using a proxy server.<br>
    #proxy.host=proxy.domain<br>
    #proxy.port=8080<br>
    #proxy.use=on<br>
<br>
    # ----- Default Base Path for Dependent Packages -----<br>
    # Replace this path with the directory path where<br>
    # dependencies binaries should be downloaded.<br>
    base.path=/home/me/some-place-to-download-to<br>
</code>
</p>

</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Building with Eclipse"><!--()--></a><a name="Building_with_Eclipse"><strong>Building with Eclipse</strong></a></font></td></tr><tr><td><blockquote>

<p>
<b>Important:</b>
This is not a supported means of building Tomcat; this information is
provided without warranty :-).
The only supported means of building Tomcat is with the "ant build"
described above.
However, some developers like to work on Java code with a Java IDE,
and the following steps have been used by some developers.
</p>

<p>
Note that you <b>must</b> complete all the above steps to fetch
dependent libraries and build some JAR files the first time.
After you have completed the above steps, you can set up an
Eclipse project.
<b>Note</b> that this will not let you build everything under Eclipse;
the build process requires use of Ant for the many stages that aren't
simple Java compilations.
However, it will allow you to view and edit the Java code,
get warnings, reformat code, perform refactorings, run Tomcat
under the IDE, and so on.
</p>

<p>
Use Windows-&gt;Preferences and then Java-&gt;Build Path-&gt;Classpath
Variables to add two new Classpath variables:
</p>

<p>
<table border="1">
 <tr><td>TOMCAT_LIBS_BASE</td><td>the base path where the binary dependencies have been downloaded</td></tr>
 <tr><td>ANT_HOME</td><td>the base path of Ant 1.6.2 or later</td></tr>
</table>
</p>

<p>
There are two files in the root directory, <code>eclipse.classpath</code> and
<code>eclipse.project</code>. Create their copies with new names,
<code>.classpath</code> and <code>.project</code> respectively.
</p>

<p>
Use File-&gt;Import and chose "Existing Projects into Workspace".
From there import the root directory where you have checked out tomcat.
</p>

<p>
Eclipse .project and .classpath files provided in the root directory of
tomcat repository should allow Eclipse to find all source trees and jars, and
hopefully compile without problems. <b>Note</b> that these
files assume you are using Eclipse with a 5.0 or later JDK.
</p>

<p>
To run Tomcat without a special IDE plug-in, you can simply use Run-&gt;Run...
enter "org.apache.catalina.startup.Catalina" as the main class,
"start" as program arguments, and
"-Dcatalina.home=..." (with the name of your build directory) 
as VM arguments.
</p>

</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Building with other IDEs"><!--()--></a><a name="Building_with_other_IDEs"><strong>Building with other IDEs</strong></a></font></td></tr><tr><td><blockquote>
<p>
The same caveats apply as for Eclipse, above.
</p>

<p>
The same general idea should work in most IDEs; it has been reported
to work in Idea, for example.
</p>

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