Javah error, cannot find class file

Question

When I tried to use javah to generate header files, I get this error:

Error: Could not find class file for 'HelloWorld'.

Here is my External tools configuration.

Location: ${system_path:javah}

Working Directory: ${workspace_loc:/JniJava/bin/sonyraj}

Arguments: -jni HelloWorld

try from the commnnd line/ terminal. maybe javah needs the full path to it? and try without packages? — tgkprog, Oct 14 '13 at 17:36
this has some results that look good https://www.google.com/search?q=javah+tutorial — tgkprog, Oct 14 '13 at 17:37
http://stackoverflow.com/questions/986262/javah-error-while-using-it-in-jni — tgkprog, Oct 14 '13 at 17:43
@tgkprog thanks for your reply, tried in the command line too,but i am getting the same error — Sony, Oct 14 '13 at 17:50
Got it! without packages it worked! thanks again @tgkprog :-) — Sony, Oct 14 '13 at 17:57
welcome entered as an answer so you can mark it as accepted :) see [FAQ] for why ... — tgkprog, Oct 15 '13 at 20:52
please accept my answer by clicking the tick near it see [faq] on why that is a god idea to accept answered questions on stackoverflow :) @sony — tgkprog, Mar 24 '14 at 15:15

score 27 · Accepted Answer · edited May 23 '17 at 12:18

Try from the commnnd line/ terminal. maybe javah needs the full path to it? And without packages.

Or fully qualified package name as noted here Javah error while using it in JNI

javah -jni com.example.JavaHowTo

where com.example is your package.

You also need to run javah from the directory containing com/example/JavaHowTo.class

e.g. if your structure is

/home/user/project/Iot/com/example/JavaHotTo.class

run javah from

/home/user/project/Iot

score 0 · Answer 2 · answered Jul 26 '16 at 20:32

0

I also had the same problem, try to put your .class files in a folder with the same name as the package name. Then run "javah packagename.ClassName". Hope it works for you too.

answered Jul 26 '16 at 20:32

Evgenii

1

Javah error, cannot find class file

2 Answers2