android - javah doesn't find my class

android java-native-interface android-ndk javah
KaiserJohaan picture KaiserJohaan · Oct 3, 2011 · Viewed 17.2k times · Source

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

Joachim Sauer picture Joachim Sauer · Oct 3, 2011

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

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