The issue is with windows locking files with tomcat 5.5. The issue was that windows locks files under tomcat and undeploying the war was not succcessful because not all of the jar files in WEB-INF/lib were being deleted while tomcat was running i.e. essentially tomcat 5.5 HotDeploy is not working on windows, so I have to stop tomcat altogether to be able to delete the files. Then restart tomcat and reload the war.

There are several posts about this all over the place. I am using a context.xml with antiJARLocking=true. I am not using antiResourceLocking=true, cause then I cant redeploy jsps on the fly because the jsps are copied into a temp directory under tomcat.

So what I wanted to do was to do the following in a maven script, same would hold if I was just using ant too.

Let say I run the following maven command and what I want to logically happen 

mvn -U clean deploy

        1. Updates from subversion (with mvn-scm-plugin)

2. Manually shuts down the windows service (net stop Tomcat5)

3. Deletes files similar to with ransack

4. unwars the war (instead of remote deploying with maven cargo plugin –saves about 30 seconds)

5.  starts windows service (net start Tomcat5)

6.Checks in code to subversion if a deploy is done (with mvn-scm-plugin)

7.Open a browser with my web application 

Basically this completely removes tomcat hotdeploy and removes the windows file locking issues. If tomcat is not already started script will run to completion but you will see a 2 return code early in the process, however it doesnt halt any subsequent steps.

Essentially I'm running tomcat 5.5 in windows (installed as a service) and I want to start and stop the tomcat5.exe at certain points in my build process. You can do this with the following ant snippets.

I'm using these with the Maven 2 ant run plugin but the same would apply if you were runnning only with ant, windows and tomcat 5.5 as a service.

The key is to use the tomcat exec task with windows cmd.exe and
net start Tomcat5
net stop Tomcat5

Where Tomcat5 is the name of your windows service from the Control Panel - > Administrative Services -> Services -> Properties

These key following assumptions are in play. If this is not the case you may need to modify.

You have tomcat installed at C:/opt/tomcat

You have tomcat installed as a windows service called Tomcat5

You are running the OS Windows XP, if not then change the os in the exec command to match whatever System.getProperty("os.name") returns, otherwise these ant scripts wont fire.

A mvn –U clean deploy took about 1:30 to 1:40 on my machine

A mvn –U clean install took about 1:15

I got the solution idea from these posts

http://ant.apache.org/manual/CoreTasks/exec.html

For example in my web applications pom.xml

            <plugin>
                <artifactId>maven-antrun-plugin</artifactId>
                <executions>
                    <execution>
                        <id>stop-delete-from-tomcat</id>
                        <phase>generate-sources</phase>
                        <configuration>
                            <tasks>
                                <property name="cp"
                                    refid="maven.compile.classpath" />
                                <echo>
                                    Maven Dependency Classpath is ${cp}
                                </echo>

                                <property name="catalina.home"
                                    value="c:/opt/tomcat" />
                               
                                <echo message="Stop Tomcat" />  
                                <exec dir="${basedir}" executable="cmd.exe" os="Windows XP"
                                    output="${catalina.home}/logs/catalina.out" >
                                    <arg line="/c net stop Tomcat5"/>
                                </exec>                                
                                <echo>
                                    Deleting ${artifactId} from tomcat
                                </echo>
                                <echo>
                                    =====================================================
                                </echo>
                                <!-- may or may not be there -->
                                <delete file="${catalina.home}/webapps/${artifactId}.war" />
                                <!-- can only delete if tomcat is stopped -->
                                <delete file="${catalina.home}/conf/Catalina/localhost/${artifactId}.xml" />
                                <delete dir="${catalina.home}/work/Catalina/localhost/${artifactId}" />
                                <delete dir="${catalina.home}/webapps/${artifactId}" />
                               
                            </tasks>
                        </configuration>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                    <execution>
                        <id>unwar-exploded-start-tomcat</id>
                        <phase>pre-integration-test</phase>
                        <configuration>
                            <tasks>
                                <property name="catalina.home"
                                    value="c:/opt/tomcat" />
                               
                                <unwar src="${basedir}/target/${artifactId}.war" dest="${catalina.home}/webapps/${artifactId}" />
                           
                                <echo message="Start Tomcat" /> 
                                <exec dir="${basedir}" executable="cmd.exe" os="Windows XP"
                                    output="${catalina.home}/logs/catalina.out" >
                                    <arg line="/c net start Tomcat5"/>
                                </exec>
                               
                            </tasks>
                        </configuration>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                    <execution>
                        <id>open-browser</id>
                        <phase>install</phase>
                        <configuration>
                            <tasks>                           
                                <!-- open browser with homepage -->
                                <property name="browser"
                                    location="C:/Program Files/Internet Explorer/IEXPLORE.EXE" />
                                <property name="url"
                                    value="http://localhost:8080/airweb/login.do" />
                                <exec executable="${browser}"
                                    spawn="true">
                                    <arg value="${url}" />
                                </exec>
                            </tasks>
                        </configuration>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
 

Responses[2]

Posted by Robert Sinner on March 6, 2008 3:55:00 PM PST #