android - javah doesn't find my class

Question

I am having troubles generating the C header file for JNI using javah.

Here's the script I use while standing in the <project-dir>\bin directory:

javah -classpath C:\PROGRA~2\Android\android-sdk\platforms\android-8\android.jar com.test.JniTest

As return I get:

ERROR: Could not find class file for 'com.test.JniTest'.

Even though the class JniTest certainly is in \com\test.

What am I doing wrong?

Answer 1

You specify the classpath to contain only android.jar.

You also need to include the location where your classes are stored. In your case it is the current directory, so you need to use . (separated by ; on Windows). The invocation should look like this:

javah -classpath C:\PROGRA~2\Android\android-sdk\platforms\android-8\android.jar;. com.test.JniTest

Answer 2

If you are on Linux or MAC-OS, use ":" to separate the directories for classpath rather than ";" character: Example:

javah -cp /Users/Android/android-sdk/platforms/android-xy/android.jar:. com.test.JniTest