jni 이용시 javah 에러!

Question

LibVideo 클래스의 헤더파일을 만들기 위해 수많은 시도를 해보았는데요ㅠㅠ 아래 에러와 같이 뜹니다

어떻게 해야 하나요ㅠㅠ

 

$ javah -classpath bin/classes com.example.vdplayer.LibVideo

Error: Class android.content.Context could not be found.

 

$ javah -classpath ~/android-ndk-r9c/samples/vdplayer/bin/classes com.example.vdplayer.LibVideo

Error: Could not find class file for 'com.example.vdplayer.LibVideo'.

 

 

$ javah -classpath ~/sdk/platforms/android-18/android.jar: bin/classes com.example.vdplayer.LibVideo

Exception in thread "main" java.lang.IllegalArgumentException: Not a valid class name: bin/classes

        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)