Hi ,
Can I start my weblogic server using ANT tasks.

I have tried this as ,

<target name="start-server">
<wlserver dir="${Domain_Home}/config" host="${SAG_WLS_SERVER_URL}"
port="${SAG_WLS_SERVER_PORT}" action="start"/>
</target>

But it throws error...as follows


start-server:

BUILD FAILED
java.lang.NullPointerException
        at weblogic.Home.<init>(Home.java:29)
        at weblogic.Home.getInstance(Home.java:86)
        at weblogic.Home.getPath(Home.java:94)
        at weblogic.Home.getFile(Home.java:99)
        at weblogic.ant.taskdefs.management.WLServer.execute(WLServer.java:274)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:302)
        at org.apache.tools.ant.Task.perform(Task.java:401)
        at org.apache.tools.ant.Target.execute(Target.java:338)
        at org.apache.tools.ant.Target.performTasks(Target.java:365)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1237)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1094)
        at org.apache.tools.ant.Main.runBuild(Main.java:669)
        at org.apache.tools.ant.Main.startAnt(Main.java:220)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:215)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:90)


can anyone help me...?

I don't know wlserver ant task, but you can always use ant's exec task and pass a shell cmd to it. For example
if it is a Unix platform, you can use startWeblogic.sh; if it is a Windows platform, you can use startWeblogic.cmd.

Hope this helps.

Do you have a <taskdef> tag for wlserver? Is weblogic.jar in ANTs classpath?

yeah...I have <taskdef> wlserver...Still it throws error

<path id="weblogic.classes">
<pathelement location="${WEBLOGIC_HOME}/lib/weblogic.jar" />
</path>

<taskdef name="wlserver" classname="weblogic.ant.taskdefs.management.WLServer">
<classpath>
<path refid="weblogic.classes" />
</classpath>
</taskdef>

I came across this when I tried running Weblogic ANT tasks from within my IntelliJ IDEA.

The issue was resolved when I added weblogic.jar to CLASSPATH ('Additional Classpath' tab of the Ant Properties).

Thanks,
Binil

Just run this cmd file located at
 %WL_HOME%\server\bin\setWLSEnv in the same shell before the wlserver task is used. then the error that you are getting wont be seen.