Adding native method in custom jdk package (original) (raw)

Bob Vandette bob.vandette at oracle.com
Wed Mar 22 17:22:44 UTC 2017


Checkout this blog that provides a simple example of how to create and call a native function in a shared library.

https://blogs.oracle.com/moonocean/entry/a_simple_example_of_jni <https://blogs.oracle.com/moonocean/entry/a_simple_example_of_jni>

Let me know if you have any questions, Bob.

On Mar 22, 2017, at 12:32 PM, Christian Hagedorn <ch-hagedorn at hispeed.ch> wrote:

Hi,

I have created a class Test.java in an own package test.lang inside the jdk ("jdk/src/share/classes/test/lang/Test.java"). Now I wanted to add a native method. I found out that my header was created inside" build/linux./jdk/gensrcheaders/testlangTest.h". So I have tried to just create a new file inside a new folder "jdk/src/share/native/test/lang/Test.c" including "testlangTest.h". From there I do my JNICALL to the VM like it is done for example in "jdk/src/share/native/java/lang/System.c". However this still results in a UnsatisfiedLinkError. I am sure I have to do some more steps to link and add it to the build properly. What am I missing? Best regards, Christian



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