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Subject: NullPointerException when calling execTask from API
To: user@ant.apache.org
X-Mailer: Lotus Notes Release 5.0.7  March 21, 2001
Message-ID: <OF7383A63E.075171B5-ONC1256CF6.00494B83@de.ibm.com>
From: "Oliver Alth" <OALTH@de.ibm.com>
Date: Thu, 27 Mar 2003 14:25:36 +0100
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Hello, I am trying to call the exec task from the api.
I get this nullPointerExecption

java.lang.NullPointerException
      at org.apache.tools.ant.Task.log(Task.java:302)
      at
org.apache.tools.ant.taskdefs.ExecTask.isValidOs(ExecTask.java:280)
      at org.apache.tools.ant.taskdefs.ExecTask.execute(ExecTask.java:2=
48)
      at com.ibm.de.scm.xtcm.ant.AntRunner.runExec(AntRunner.java:232)
      at
com.ibm.de.scm.xtcm.core.InvocationManager.invokeInternal(InvocationMan=
ager.java:138)
      at
com.ibm.de.scm.xtcm.core.InvocationManager.invoke(InvocationManager.jav=
a:92)
      at com.ibm.de.scm.xtcm.core.Xtcm.main(Xtcm.java:38)
Exception in thread "main"


This is my code:

final class Myexec extends ExecTask
      {
            public Myexec()
            {
                  Project proj =3D new Project();
                  proj.init();
                  taskType =3D "exec";
            taskName =3D "exec";
                  Target target =3D new Target();
            }
      }

      Myexec exec =3D new Myexec();
      exec.init();
      exec.setExecutable(tool.getProgname());

      File dir =3D new File(tool.getLocation());
      exec.setDir(dir);
      exec.setVMLauncher(false);

      //exec.setOutput(err.getErrorOutputFile());
      try
      {
      exec.execute();
      }
      catch (BuildException buildex)
      {
            err.output(this.getClass(),"Error. "+buildex.getMessage(),2=
);
      }


Can someone tell me what I am doing wrong?

Thanks,

Oliver




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