title: Running Maven web application to Tomcat
body: <p>I have a problem with Tomcat when I run my web application. Here is the relevant part of my <code>pom.xml</code> : </p>
  
  <pre class="lang-xml prettyprint-override"><code>&lt;build&gt;
  &lt;plugins&gt;
      &lt;plugin&gt;
        &lt;groupId&gt;org.apache.tomcat.maven&lt;/groupId&gt;
        &lt;artifactId&gt;tomcat7-maven-plugin&lt;/artifactId&gt;
        &lt;version&gt;7&lt;/version&gt;
      &lt;/plugin&gt;
  &lt;/plugins&gt;
  &lt;/build&gt;
  </code></pre>
  
  <p>When I run with <strong>m2eclipse</strong> (<code>tomcat:run</code>) I have this error: </p>
  
  <pre><code>[INFO] Scanning for projects...
  [WARNING] The POM for org.apache.tomcat.maven:tomcat7-maven-plugin:jar:7 is missing, no dependency information available
  [WARNING] Failed to retrieve plugin descriptor for org.apache.tomcat.maven:tomcat7-maven-plugin:7: Plugin org.apache.tomcat.maven:tomcat7-maven-plugin:7 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.tomcat.maven:tomcat7-maven-plugin:jar:7
  [INFO]                                                                         
  [INFO] ------------------------------------------------------------------------
  [INFO] Building ourtest 0.0.1-SNAPSHOT
  [INFO] ------------------------------------------------------------------------
  [WARNING] The POM for org.apache.tomcat.maven:tomcat7-maven-plugin:jar:7 is missing, no dependency information available
  [WARNING] Failed to retrieve plugin descriptor for org.apache.tomcat.maven:tomcat7-maven-plugin:7: Plugin org.apache.tomcat.maven:tomcat7-maven-plugin:7 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.tomcat.maven:tomcat7-maven-plugin:jar:7
  [INFO] 
  [INFO] &gt;&gt;&gt; tomcat-maven-plugin:1.1:run (default-cli) @ ourtest &gt;&gt;&gt;
  [INFO] 
  [INFO] --- maven-resources-plugin:2.5:resources (default-resources) @ ourtest ---
  [debug] execute contextualize
  [INFO] Using 'UTF-8' encoding to copy filtered resources.
  [INFO] skip non existing resourceDirectory C:\Users\user\Documents\EclipseProjects\ourtest\src\main\resources
  [INFO] 
  [INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ ourtest ---
  [INFO] Compiling 7 source files to C:\Users\user\Documents\EclipseProjects\ourtest\target\classes
  [INFO] -------------------------------------------------------------
  [ERROR] COMPILATION ERROR : 
  [INFO] -------------------------------------------------------------
  [ERROR] Unable to locate the Javac Compiler in:
    C:\Program Files\Java\jre7\..\lib\tools.jar
  Please ensure you are using JDK 1.4 or above and
  not a JRE (the com.sun.tools.javac.Main class is required).
  In most cases you can change the location of your Java
  installation by setting the JAVA_HOME environment variable.
  [INFO] 1 error
  [INFO] -------------------------------------------------------------
  [INFO] ------------------------------------------------------------------------
  [INFO] BUILD FAILURE
  [INFO] ------------------------------------------------------------------------
  [INFO] Total time: 1.317s
  [INFO] Finished at: Tue Mar 05 15:50:20 GMT+01:00 2013
  [INFO] Final Memory: 6M/15M
  [INFO] ------------------------------------------------------------------------
  [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project ourtest: Compilation failure
  [ERROR] Unable to locate the Javac Compiler in:
  [ERROR] C:\Program Files\Java\jre7\..\lib\tools.jar
  [ERROR] Please ensure you are using JDK 1.4 or above and
  [ERROR] not a JRE (the com.sun.tools.javac.Main class is required).
  [ERROR] In most cases you can change the location of your Java
  [ERROR] installation by setting the JAVA_HOME environment variable.
  [ERROR] -&gt; [Help 1]
  [ERROR] 
  [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
  [ERROR] Re-run Maven using the -X switch to enable full debug logging.
  [ERROR] 
  [ERROR] For more information about the errors and possible solutions, please read the following articles:
  [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
  </code></pre>
  
  <p>I tested a lot of configurations in <code>pom.xml</code> but to no result.</p>