The following comment has been added to this issue:

     Author: Tom Cunningham
    Created: Fri, 8 Oct 2004 1:16 PM
       Body:
I've tried patching 1.2.1 and 1.2.2rc1 with this and I still get the following NPE.  
I'm sure I included all of the required jars.

[webdoclet] java.lang.NullPointerException
[webdoclet]     at xdoclet.DocletTask.getConfigParams(DocletTask.java:439)
[webdoclet]     at xdoclet.DocletTask.createContext(DocletTask.java:615) 
[webdoclet]     at xdoclet.DocletTask.validateSubTasks(DocletTask.java:517)
[webdoclet]     at xdoclet.DocletTask.validateOptions(DocletTask.java:491)
[webdoclet]     at 
xdoclet.modules.web.WebDocletTask.validateOptions(WebDocletTask.java:24)
[webdoclet]     at xjavadoc.ant.XJavadocTask.execute(XJavadocTask.java:94)
[webdoclet]     at org.apache.tools.ant.Task.perform(Task.java:364)
[webdoclet]     at org.apache.tools.ant.Target.execute(Target.java:341)
[webdoclet]     at org.apache.tools.ant.Target.performTasks(Target.java:369)
[webdoclet]     at org.apache.tools.ant.Project.executeTarget(Project.java:1214)
[webdoclet]     at org.apache.tools.ant.Project.executeTargets(Project.java:1062)
[webdoclet]     at org.apache.tools.ant.Main.runBuild(Main.java:673)
[webdoclet]     at org.apache.tools.ant.Main.startAnt(Main.java:188)
[webdoclet]     at org.apache.tools.ant.launch.Launcher.run(Launcher.java:196)
[webdoclet]     at org.apache.tools.ant.launch.Launcher.main(Launcher.java:55)
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View this comment:
  
http://opensource.atlassian.com/projects/xdoclet/browse/XDT-879?page=comments#action_15071

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View the issue:
  http://opensource.atlassian.com/projects/xdoclet/browse/XDT-879

Here is an overview of the issue:
---------------------------------------------------------------------
        Key: XDT-879
    Summary: Fix for "destDir attribute must be present."
       Type: Improvement

     Status: Open
   Priority: Major

 Original Estimate: Unknown
 Time Spent: Unknown
  Remaining: Unknown

    Project: XDoclet
 Components: 
             Core
   Versions:
             1.2.1

   Assignee: xdoclet-devel (Use for new issues)
   Reporter: Matt Raible

    Created: Sun, 25 Apr 2004 11:57 PM
    Updated: Fri, 8 Oct 2004 1:16 PM
Environment: Windows XP, JDK 1.4.2, Ant 1.6.1

Description:
When I do an "ant clean" and try to run "webdoclet" on my project, I get the following 
error:

"destDir attribute must be present."

According to the following Ant bug report:

It is a bug in the xdoclet code.
At the end of the execute method, it cleans up (nulls)
some internal variables. This code also incorrectly nulls the
destdir attribute.

http://issues.apache.org/bugzilla/show_bug.cgi?id=26310

I'll attach a patch that seems to fix this problem.  Note that it only happens when I 
do a clean checkout and the first build on my project.




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