tomcat-cas/webapps/docs/building.html - UniIdentify/tomcat - Gitiles

 <html><head><META http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>Apache Tomcat 6.0 (6.0.41) - Building Tomcat</title><meta name="author" content="Remy Maucherat"><style type="text/css" media="print">
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 		</style></head><body bgcolor="#ffffff" text="#000000" link="#525D76" alink="#525D76" vlink="#525D76"><table border="0" width="100%" cellspacing="0"><!--PAGE HEADER--><tr><td><!--PROJECT LOGO--><a href="http://tomcat.apache.org/"><img src="./images/tomcat.gif" align="right" alt="
       The Apache Tomcat Servlet/JSP Container
     " border="0"></a></td><td><h1><font face="arial,helvetica,sanserif">Apache Tomcat 6.0</font></h1><font face="arial,helvetica,sanserif">Version 6.0.41, May 19 2014</font></td><td><!--APACHE LOGO--><a href="http://www.apache.org/"><img src="./images/asf-logo.gif" align="right" alt="Apache Logo" border="0"></a></td></tr></table><table border="0" width="100%" cellspacing="4"><!--HEADER SEPARATOR--><tr><td colspan="2"><hr noshade="noshade" size="1"></td></tr><tr><!--LEFT SIDE NAVIGATION--><td width="20%" valign="top" nowrap="nowrap" class="noPrint"><p><strong>Links</strong></p><ul><li><a href="index.html">Docs Home</a></li><li><a href="http://wiki.apache.org/tomcat/FAQ">FAQ</a></li></ul><p><strong>User Guide</strong></p><ul><li><a href="introduction.html">1) Introduction</a></li><li><a href="setup.html">2) Setup</a></li><li><a href="appdev/index.html">3) First webapp</a></li><li><a href="deployer-howto.html">4) Deployer</a></li><li><a href="manager-howto.html">5) Manager</a></li><li><a href="realm-howto.html">6) Realms and AAA</a></li><li><a href="security-manager-howto.html">7) Security Manager</a></li><li><a href="jndi-resources-howto.html">8) JNDI Resources</a></li><li><a href="jndi-datasource-examples-howto.html">9) JDBC DataSources</a></li><li><a href="class-loader-howto.html">10) Classloading</a></li><li><a href="jasper-howto.html">11) JSPs</a></li><li><a href="ssl-howto.html">12) SSL</a></li><li><a href="ssi-howto.html">13) SSI</a></li><li><a href="cgi-howto.html">14) CGI</a></li><li><a href="proxy-howto.html">15) Proxy Support</a></li><li><a href="mbeans-descriptor-howto.html">16) MBean Descriptor</a></li><li><a href="default-servlet.html">17) Default Servlet</a></li><li><a href="cluster-howto.html">18) Clustering</a></li><li><a href="balancer-howto.html">19) Load Balancer</a></li><li><a href="connectors.html">20) Connectors</a></li><li><a href="monitoring.html">21) Monitoring and Management</a></li><li><a href="logging.html">22) Logging</a></li><li><a href="apr.html">23) APR/Native</a></li><li><a href="virtual-hosting-howto.html">24) Virtual Hosting</a></li><li><a href="aio.html">25) Advanced IO</a></li><li><a href="extras.html">26) Additional Components</a></li><li><a href="maven-jars.html">27) Mavenized</a></li></ul><p><strong>Reference</strong></p><ul><li><a href="RELEASE-NOTES.txt">Release Notes</a></li><li><a href="config/index.html">Configuration</a></li><li><a href="api/index.html">Javadocs</a></li><li><a href="http://tomcat.apache.org/connectors-doc/">JK 1.2 Documentation</a></li></ul><p><strong>Apache Tomcat Development</strong></p><ul><li><a href="building.html">Building</a></li><li><a href="changelog.html">Changelog</a></li><li><a href="http://wiki.apache.org/tomcat/TomcatVersions">Status</a></li><li><a href="developers.html">Developers</a></li><li><a href="architecture/index.html">Architecture</a></li><li><a href="funcspecs/index.html">Functional Specs.</a></li></ul></td><!--RIGHT SIDE MAIN BODY--><td width="80%" valign="top" align="left" id="mainBody"><h1>Apache Tomcat 6.0</h1><h2>Building Tomcat</h2><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Table of Contents"><!--()--></a><a name="Table_of_Contents"><strong>Table of Contents</strong></a></font></td></tr><tr><td><blockquote>
 <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>

 </blockquote></td></tr></table></td></tr><!--FOOTER SEPARATOR--><tr><td colspan="2"><hr noshade="noshade" size="1"></td></tr><!--PAGE FOOTER--><tr><td colspan="2"><div align="center"><font color="#525D76" size="-1"><em>
         Copyright &copy; 1999-2014, Apache Software Foundation
         </em></font></div></td></tr></table></body></html>
	<html><head><META http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>Apache Tomcat 6.0 (6.0.41) - Building Tomcat</title><meta name="author" content="Remy Maucherat"><style type="text/css" media="print">
	.noPrint {display: none;}
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	</style></head><body bgcolor="#ffffff" text="#000000" link="#525D76" alink="#525D76" vlink="#525D76"><table border="0" width="100%" cellspacing="0"><!--PAGE HEADER--><tr><td><!--PROJECT LOGO--><a href="http://tomcat.apache.org/"><img src="./images/tomcat.gif" align="right" alt="
	The Apache Tomcat Servlet/JSP Container
	" border="0"></a></td><td><h1><font face="arial,helvetica,sanserif">Apache Tomcat 6.0</font></h1><font face="arial,helvetica,sanserif">Version 6.0.41, May 19 2014</font></td><td><!--APACHE LOGO--><a href="http://www.apache.org/"><img src="./images/asf-logo.gif" align="right" alt="Apache Logo" border="0"></a></td></tr></table><table border="0" width="100%" cellspacing="4"><!--HEADER SEPARATOR--><tr><td colspan="2"><hr noshade="noshade" size="1"></td></tr><tr><!--LEFT SIDE NAVIGATION--><td width="20%" valign="top" nowrap="nowrap" class="noPrint"><p><strong>Links</strong></p><ul><li><a href="index.html">Docs Home</a></li><li><a href="http://wiki.apache.org/tomcat/FAQ">FAQ</a></li></ul><p><strong>User Guide</strong></p><ul><li><a href="introduction.html">1) Introduction</a></li><li><a href="setup.html">2) Setup</a></li><li><a href="appdev/index.html">3) First webapp</a></li><li><a href="deployer-howto.html">4) Deployer</a></li><li><a href="manager-howto.html">5) Manager</a></li><li><a href="realm-howto.html">6) Realms and AAA</a></li><li><a href="security-manager-howto.html">7) Security Manager</a></li><li><a href="jndi-resources-howto.html">8) JNDI Resources</a></li><li><a href="jndi-datasource-examples-howto.html">9) JDBC DataSources</a></li><li><a href="class-loader-howto.html">10) Classloading</a></li><li><a href="jasper-howto.html">11) JSPs</a></li><li><a href="ssl-howto.html">12) SSL</a></li><li><a href="ssi-howto.html">13) SSI</a></li><li><a href="cgi-howto.html">14) CGI</a></li><li><a href="proxy-howto.html">15) Proxy Support</a></li><li><a href="mbeans-descriptor-howto.html">16) MBean Descriptor</a></li><li><a href="default-servlet.html">17) Default Servlet</a></li><li><a href="cluster-howto.html">18) Clustering</a></li><li><a href="balancer-howto.html">19) Load Balancer</a></li><li><a href="connectors.html">20) Connectors</a></li><li><a href="monitoring.html">21) Monitoring and Management</a></li><li><a href="logging.html">22) Logging</a></li><li><a href="apr.html">23) APR/Native</a></li><li><a href="virtual-hosting-howto.html">24) Virtual Hosting</a></li><li><a href="aio.html">25) Advanced IO</a></li><li><a href="extras.html">26) Additional Components</a></li><li><a href="maven-jars.html">27) Mavenized</a></li></ul><p><strong>Reference</strong></p><ul><li><a href="RELEASE-NOTES.txt">Release Notes</a></li><li><a href="config/index.html">Configuration</a></li><li><a href="api/index.html">Javadocs</a></li><li><a href="http://tomcat.apache.org/connectors-doc/">JK 1.2 Documentation</a></li></ul><p><strong>Apache Tomcat Development</strong></p><ul><li><a href="building.html">Building</a></li><li><a href="changelog.html">Changelog</a></li><li><a href="http://wiki.apache.org/tomcat/TomcatVersions">Status</a></li><li><a href="developers.html">Developers</a></li><li><a href="architecture/index.html">Architecture</a></li><li><a href="funcspecs/index.html">Functional Specs.</a></li></ul></td><!--RIGHT SIDE MAIN BODY--><td width="80%" valign="top" align="left" id="mainBody"><h1>Apache Tomcat 6.0</h1><h2>Building Tomcat</h2><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Table of Contents"><!--()--></a><a name="Table_of_Contents"><strong>Table of Contents</strong></a></font></td></tr><tr><td><blockquote>
	<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->Preferences and then Java->Build Path->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->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->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>

	</blockquote></td></tr></table></td></tr><!--FOOTER SEPARATOR--><tr><td colspan="2"><hr noshade="noshade" size="1"></td></tr><!--PAGE FOOTER--><tr><td colspan="2"><div align="center"><font color="#525D76" size="-1"><em>
	Copyright © 1999-2014, Apache Software Foundation
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