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+<html><head><META http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>Apache Tomcat 7 (7.0.42) - Building Tomcat</title><meta name="author" content="Remy Maucherat, Tim Whittington"><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 7</font></h1><font face="arial,helvetica,sanserif">Version 7.0.42, Jul 2 2013</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 size="1"></td></tr><tr><!--LEFT SIDE NAVIGATION--><td width="20%" valign="top" 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><li><a href="#comments_section">User Comments</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><li><a href="security-howto.html">28) Security Considerations</a></li><li><a href="windows-service-howto.html">29) Windows Service</a></li><li><a href="windows-auth-howto.html">30) Windows Authentication</a></li><li><a href="jdbc-pool.html">31) Tomcat's JDBC Pool</a></li><li><a href="web-socket-howto.html">32) WebSocket</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">Tomcat Javadocs</a></li><li><a href="servletapi/index.html">Servlet Javadocs</a></li><li><a href="jspapi/index.html">JSP 2.2 Javadocs</a></li><li><a href="elapi/index.html">EL 2.2 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><li><a href="tribes/introduction.html">Tribes</a></li></ul></td><!--RIGHT SIDE MAIN BODY--><td width="80%" valign="top" align="left" id="mainBody"><h1>Building Tomcat</h1><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)_version_6">Download a Java Development Kit (JDK) version 6</a></li><li><a href="#Install_Apache_Ant_1.8.1_or_later">Install Apache Ant 1.8.1 or later</a></li><li><a href="#Checkout_or_obtain_the_source_code_for_Tomcat_7.0">Checkout or obtain the source code for Tomcat 7.0</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 source is very easy, and is the first step to contributing to
+Tomcat. The following is a step by step guide.
+</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) version 6"><!--()--></a><a name="Download_a_Java_Development_Kit_(JDK)_version_6"><strong>Download a Java Development Kit (JDK) version 6</strong></a></font></td></tr><tr><td><blockquote>
+
+<p>
+Building Apache Tomcat requires a JDK (version 6) to be installed. You can download one from<br>
+<a href="http://www.oracle.com/technetwork/java/javase/downloads/index.html">http://www.oracle.com/technetwork/java/javase/downloads/index.html</a><br>
+or from another JDK vendor.
+</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 1.8.1 or later"><!--()--></a><a name="Install_Apache_Ant_1.8.1_or_later"><strong>Install Apache Ant 1.8.1 or later</strong></a></font></td></tr><tr><td><blockquote>
+
+<p>
+Download a binary distribution of Ant 1.8.1 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
+<code>apache-ant-1.8.x</code>). For the remainder of this guide,
+the symbolic name <code>${ant.home}</code> is used to refer to the full pathname of
+ the Ant installation directory directory.
+</p>
+
+<p>
+<b>IMPORTANT</b>: Create an ANT_HOME environment variable to point the directory <code>${ant.home}</code>,
+and modify the PATH environment variable to include directory
+<code>${ant.home}/bin</code> in its list. This makes the <code>ant</code> command line script
+available, which will be used to actually perform the build.
+</p>
+
+</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Checkout or obtain the source code for Tomcat 7.0"><!--()--></a><a name="Checkout_or_obtain_the_source_code_for_Tomcat_7.0"><strong>Checkout or obtain the source code for Tomcat 7.0</strong></a></font></td></tr><tr><td><blockquote>
+
+ <p>
+ Tomcat 7.0 SVN repository URL:
+ <a href="http://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk/">http://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk/</a>
+ </p>
+ <p>
+ Tomcat source packages:
+ <a href="http://tomcat.apache.org/download-70.cgi">http://tomcat.apache.org/download-70.cgi</a>.
+ </p>
+
+ <p>
+ Checkout the source using SVN, selecting a tag for released version or
+ trunk for the current development code, or download and unpack a
+ source package. For the remainder of this guide, the symbolic name
+ <code>${tomcat.source}</code> is used to refer to the
+ location where the source has been placed.
+ </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 to build Tomcat:
+<br>
+<code><br>
+ cd ${tomcat.source}<br>
+ ant<br>
+</code>
+</p>
+
+<p>
+<b>WARNING:</b> Running this command will download libraries required
+ to build Tomcat to the <code>/usr/share/java</code> directory by default.
+ On a typical Linux or MacOX system, an ordinary user
+ will not have access to write to this directory, and, even if you do,
+ it is likely not appropriate for you to write there. On Windows
+ this usually corresponds to the <code>C:\usr\share\java</code> directory,
+ unless Cygwin is used. Read below to learn how to customize the directory
+ used to download the binaries.
+</p>
+
+<p>
+<b>NOTE:</b> Users accessing the Internet through a proxy must use a properties
+ file to indicate to Ant the proxy configuration. Read below for details.
+</p>
+
+<p>
+ The build can be controlled by creating a <code>${tomcat.source}/build.properties</code>
+ file and adding the following content to it:
+<br>
+<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>
+
+<p>
+Once the build has completed successfully, a usable Tomcat installation will have been
+produced in the <code>${tomcat.source}/output/build</code> directory, and can be started
+and stopped with the usual scripts.
+</p>
+</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Building with Eclipse"><!--()--></a><a name="Building_with_Eclipse"><strong>Building with Eclipse</strong></a></font></td></tr><tr><td><blockquote>
+
+<p>
+<b>IMPORTANT:</b> This is not a supported means of building Tomcat; this information is
+provided without warranty :-).
+The only supported means of building Tomcat is with the Ant build described above.
+However, some developers like to work on Java code with a Java IDE,
+and the following steps have been used by some developers.
+</p>
+
+<p>
+<b>NOTE:</b> This will not let you build everything under Eclipse;
+the build process requires use of Ant for the many stages that aren't
+simple Java compilations.
+However, it will allow you to view and edit the Java code,
+get warnings, reformat code, perform refactorings, run Tomcat
+under the IDE, and so on.
+</p>
+
+<p>
+<b>WARNING:</b> Do not forget to create and configure
+ <code>${tomcat.source}/build.properties</code> file as described above
+ before running any Ant targets.
+</p>
+
+<p>
+Sample Eclipse project files and launch targets are provided in the
+<code>res/ide-support/eclipse</code> directory of the source tree.
+The instructions below will automatically copy these into the required locations.
+</p>
+<p>
+An Ant target is provided as a convenience to download all binary dependencies, and to create
+the Eclipse project and classpath files in the root of the source tree.
+<br>
+<code><br>
+ cd ${tomcat.source}<br>
+ ant ide-eclipse<br>
+</code>
+</p>
+
+<p>
+Start Eclipse and create a new Workspace.
+</p>
+
+<p>
+Open the <em>Preferences</em> dialog and then select <em>Java->Build Path->Classpath
+Variables</em> to add two new <em>Classpath Variables</em>:
+</p>
+
+<p>
+<table border="1">
+ <tr><td>TOMCAT_LIBS_BASE</td><td>The same location as the <code>base.path</code>
+ setting in <code>build.properties</code>, where the binary dependencies have been downloaded</td></tr>
+ <tr><td>ANT_HOME</td><td>the base path of Ant 1.8.1 or later</td></tr>
+</table>
+</p>
+
+<p>
+Use <em>File->Import</em> and choose <em>Existing Projects into Workspace</em>.
+From there choose the root directory of the Tomcat source tree (<code>${tomcat.source}</code>)
+and import the Tomcat project located there.
+</p>
+
+<p>
+<code>start-tomcat</code> and <code>stop-tomcat</code> launch configurations are provided in
+<code>res/ide-support/eclipse</code> and will be available in the <em>Run->Run Configurations</em>
+dialog. Use these to start and stop Tomcat from Eclipse.
+<br>If you want to configure these yourself (or are using a different IDE)
+then use <code>org.apache.catalina.startup.Bootstrap</code> as the main class,
+<code>start</code>/<code>stop</code> etc. as program arguments, and specify <code>-Dcatalina.home=...</code>
+(with the name of your build directory) as VM arguments.
+</p>
+
+<p>
+Tweaking a few formatting preferences will make it much easier to keep consistent with Tomcat
+coding conventions (and have your contributions accepted):
+</p>
+<p>
+<table border="1">
+ <tr><td>Java -> Code Style -> Formatter -> Edit...</td>
+ <td>Tab policy: Spaces only<br>Tab and Indentation size: 4</td></tr>
+ <tr><td>General -> Editors -> Text Editors</td>
+ <td>Displayed tab width: 2<br>Insert spaces for tabs<br>Show whitespace characters (optional)</td></tr>
+ <tr><td>XML -> XML Files -> Editor</td><td>Indent using spaces<br>Indentation size: 2</td></tr>
+ <tr><td>Ant -> Editor -> Formatter</td><td>Tab size: 2<br>Use tab character instead of spaces: unchecked</td></tr>
+</table>
+</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 general approach should work for most IDEs; it has been reported
+to work in IntelliJ IDEA, for example.
+</p>
+
+</blockquote></td></tr></table></td></tr><tr class="noPrint"><td width="20%" valign="top" nowrap class="noPrint"></td><td width="80%" valign="top" align="left"><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="comments_section" id="comments_section"><strong>Comments</strong></a></font></td></tr><tr><td><blockquote><p class="notice"><strong>Notice: </strong>This comments section collects your suggestions
+ on improving documentation for Apache Tomcat.<br><br>
+ If you have trouble and need help, read
+ <a href="http://tomcat.apache.org/findhelp.html">Find Help</a> page
+ and ask your question on the tomcat-users
+ <a href="http://tomcat.apache.org/lists.html">mailing list</a>.
+ Do not ask such questions here. This is not a Q&A section.<br><br>
+ The Apache Comments System is explained <a href="/tomcat-7.0-doc/comments.html">here</a>.
+ Comments may be removed by our moderators if they are either
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