Javah Not Recognizing class (A) mentioned in class (B) when operating on class B

Question

I'm trying to get a jni header for class B, and class A sits in the same package, right next to it.

Class B contains native functions (for which I need the JNI Header)

and I use the command

javah -jni ClassB -classpath (path to jarfile containing all the classes necessary, including classA)

and I get the response

"Couldn't find class w.x.y.z.ClassA"

Where w.x.y.z is the right package path for classA and classB.

Any suggestions?

score 1 · Accepted Answer · answered Jul 28 '11 at 00:05

1

Try putting the options first, and only at the end the ClassB argument.

Also, the classpath should point to the root of the package hierarchy, not to the package directory. Then call it like this:

javah -jni -classpath library.jar w.x.y.z.ClassB

answered Jul 28 '11 at 00:05

Paŭlo Ebermann

Bingo. I navigated to the folder containing 'w', moved my jar file there, then javah w.x.y.z.ClassB worked great. Thanks man! – sparkFinder Jul 28 '11 at 00:13
You can also use relative paths for the jar files. – Paŭlo Ebermann Jul 28 '11 at 00:17

1 Answers1