How to find JDK directory in Ubuntu for JNI C/C++ library

Question

I am trying to use JNI for my recent project. MY IDE is NetBeans. After creating C/C++ project , I am trying to add JDK directory from project properties->C compiler->include directory. I could not find any include or include/linux directory in /usr/lib/jvm/ directory.

Where should i look for "include" or "include/linux" directory?

Solution

Assuming you've got a JDK installed the directory should be something like: /usr/lib/jvm/java-7-openjdk-amd64 (assuming OpenJDK 7 here). You might also need to a JAVA_HOME environment variable pointing at the same directory depending on your build process.

If you haven't got a JDK installed you can install the OpenJDK with something like the following in a terminal windows:

sudo apt-get install openjdk-7-jdk

Comments

[Dielson Sales]

For 32 bits it's /usr/lib/jvm/java-7-openjdk-i386.

[user1893354]

I am confused, is this where the "include" directory is supposed to be?