title: How to configure javah tool in Eclipse Version: 4.2.0 in windows (android NDK compilation)
body: <p>i try to set up super simple exteranl tooling in eclispe , that is javah 
  what ever i do , that means trying all the links in the web still can set it right .
  and when i close the external tool config it gives me error </p>
  
  <p><img src="https://i.stack.imgur.com/sTVyo.jpg" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/9YhoT.jpg" alt="enter image description here"></p>
  
  <p>i tried with and without the -jni still gives me the error:</p>
  
  <pre><code>Exception in thread "main" java.lang.IllegalArgumentException: Not a valid class name: –d
      at com.sun.tools.javac.api.JavacTool.getTask(JavacTool.java:177)
      at com.sun.tools.javac.api.JavacTool.getTask(JavacTool.java:68)
      at com.sun.tools.javah.JavahTask.run(JavahTask.java:509)
      at com.sun.tools.javah.JavahTask.run(JavahTask.java:335)
      at com.sun.tools.javah.Main.main(Main.java:46)
  </code></pre>