CreateProcess error=206, The filename or extension is too long when running main() method

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There is no simple (as in a couple of clicks or a simple command) solution to this issue.

Quoting from some answers in this bug report in Eclipse.org, these are the work-arounds. Pick the one that’s the least painful to you:

  • Reduce the classpath
  • Use directories instead of jar files
  • Use a packed jar files which contains all other jars, use the classpath variable inside the manifest file to point to the other jars
  • Use a special class loader which reads the classpath from a config file
  • Try to use one of the attached patches in the bug report document
  • Use an own wrapper e.g. ant

Update: After July 2014, there is a better way (thanks to @Brad-Mace’s answer below:

If you have created your own build file instead of using Project -> Generate Javadocs, then you can add useexternalfile="yes" to the Javadoc task, which is designed specifically to solve this problem.

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