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javalinuxjava-native-interfacejava-8header-files

JDK 1.8 on Linux missing JNI include file

I am trying to compile the following project:

https://github.com/entropia/libsocket-can-java

I always get this error message? Does anyone know how to fix it, is it possibly a bug in JDK 1.8.0.11 on Linux (x64 Debian Wheezy)?

In file included from jni/de_entropia_can_CanSocket.h:2:0,
             from jni/cansocket.cpp:23:
/opt/jdk1.8.0_11/include/jni.h:45:20: fatal error: jni_md.h: No such file or directory
#include "jni_md.h"
                ^
Solution

  • It seems so. #include "jni_md.h" would include the file in the same directory as jni.h, but it is placed in linux folder.

    In previous JDK versions it seems that file and another were place in include/linux folder, but there are symlinks to both files in include.

    So you can just create symlinks to both files:

    $ sudo ln -s /opt/jdk1.8.0_11/include/linux/jni_md.h /opt/jdk1.8.0_11/include/jni_md.h
$ sudo ln -s /opt/jdk1.8.0_11/include/linux/jawt_md.h /opt/jdk1.8.0_11/include/jawt_md.h

    Edit

    As stated in the comments by Absurd-Mind and Mikkel, there is also the option to add that path to the makefile compiler options:

    -I$(JAVA_HOME)/include/linux/