The javah tool is used to generate C header files and C source files from Java classes. C programs can reference the generated header files and source files.
Here is a look at the life and death of the javah tool:
As illustrated earlier, the javah tool was introduced with Java 7 and its functionality was included in the javac that came with JDK8. This functionality was reportedly superior compared to that of the original tool. In JDK 9, developers received warnings each time the javah tool was used, informing them of its pending removal from the JDK. The tool is slated for removal in JDK 10.
