JIDEA quick JNI header generation

readme.txt

Here are the IntelliJ IDEA settings I use to generate the .h file: (This applies to IDEA version 12.1.6, probably similar in other versions)

File->Settings->External Tools
Click the + button for the "Edit Tool" dialog
The following are the form name/value pairs I used:
Name: javah
Group: Java
Description: Java Native Interface C Header and Stub File Generator
Options: Check All
Show in: Check All
Tool Settings...
Program: $JDKPath$\bin\javah.exe
Parameters: -jni -v -d $FileDir$ $FileClass$
Working directory: $SourcepathEntry$
Click OK, Click OK
Navigate to your java class with the native method
With the java class being shown in the editor, go to Tools->Java->javah
Notice the .h file that was generated in the same directory as your class.